summaryrefslogtreecommitdiff
path: root/builtin
diff options
context:
space:
mode:
Diffstat (limited to 'builtin')
-rw-r--r--builtin/add.c6
-rw-r--r--builtin/apply.c26
-rw-r--r--builtin/blame.c931
-rw-r--r--builtin/branch.c6
-rw-r--r--builtin/checkout-index.c4
-rw-r--r--builtin/checkout.c26
-rw-r--r--builtin/clean.c2
-rw-r--r--builtin/clone.c29
-rw-r--r--builtin/commit-tree.c4
-rw-r--r--builtin/commit.c163
-rw-r--r--builtin/config.c15
-rw-r--r--builtin/diff-tree.c8
-rw-r--r--builtin/fast-export.c54
-rw-r--r--builtin/fetch.c44
-rw-r--r--builtin/fmt-merge-msg.c22
-rw-r--r--builtin/for-each-ref.c2
-rw-r--r--builtin/fsck.c3
-rw-r--r--builtin/grep.c4
-rw-r--r--builtin/index-pack.c3
-rw-r--r--builtin/log.c53
-rw-r--r--builtin/ls-remote.c2
-rw-r--r--builtin/merge.c33
-rw-r--r--builtin/mv.c7
-rw-r--r--builtin/name-rev.c5
-rw-r--r--builtin/notes.c6
-rw-r--r--builtin/pack-objects.c4
-rw-r--r--builtin/patch-id.c74
-rw-r--r--builtin/push.c7
-rw-r--r--builtin/read-tree.c18
-rw-r--r--builtin/receive-pack.c5
-rw-r--r--builtin/reflog.c2
-rw-r--r--builtin/remote.c12
-rw-r--r--builtin/repack.c16
-rw-r--r--builtin/replace.c240
-rw-r--r--builtin/reset.c17
-rw-r--r--builtin/rev-list.c5
-rw-r--r--builtin/rev-parse.c10
-rw-r--r--builtin/rm.c7
-rw-r--r--builtin/show-branch.c10
-rw-r--r--builtin/tag.c98
-rw-r--r--builtin/update-index.c33
-rw-r--r--builtin/update-ref.c426
-rw-r--r--builtin/verify-commit.c93
43 files changed, 1700 insertions, 835 deletions
diff --git a/builtin/add.c b/builtin/add.c
index 459208a..4baf3a5 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -299,7 +299,6 @@ static int add_files(struct dir_struct *dir, int flags)
int cmd_add(int argc, const char **argv, const char *prefix)
{
int exit_status = 0;
- int newfd;
struct pathspec pathspec;
struct dir_struct dir;
int flags;
@@ -345,7 +344,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
add_new_files = !take_worktree_changes && !refresh_only;
require_pathspec = !take_worktree_changes;
- newfd = hold_locked_index(&lock_file, 1);
+ hold_locked_index(&lock_file, 1);
flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
(show_only ? ADD_CACHE_PRETEND : 0) |
@@ -443,8 +442,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
finish:
if (active_cache_changed) {
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}
diff --git a/builtin/apply.c b/builtin/apply.c
index 9c5724e..5fd099e 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -1281,9 +1281,7 @@ static int parse_git_header(const char *line, int len, unsigned int size, struct
*/
patch->def_name = git_header_name(line, len);
if (patch->def_name && root) {
- char *s = xmalloc(root_len + strlen(patch->def_name) + 1);
- strcpy(s, root);
- strcpy(s + root_len, patch->def_name);
+ char *s = xstrfmt("%s%s", root, patch->def_name);
free(patch->def_name);
patch->def_name = s;
}
@@ -3086,13 +3084,15 @@ static void prepare_fn_table(struct patch *patch)
}
}
-static int checkout_target(struct cache_entry *ce, struct stat *st)
+static int checkout_target(struct index_state *istate,
+ struct cache_entry *ce, struct stat *st)
{
struct checkout costate;
memset(&costate, 0, sizeof(costate));
costate.base_dir = "";
costate.refresh_cache = 1;
+ costate.istate = istate;
if (checkout_entry(ce, &costate, NULL) || lstat(ce->name, st))
return error(_("cannot checkout %s"), ce->name);
return 0;
@@ -3259,7 +3259,7 @@ static int load_current(struct image *image, struct patch *patch)
if (lstat(name, &st)) {
if (errno != ENOENT)
return error(_("%s: %s"), name, strerror(errno));
- if (checkout_target(ce, &st))
+ if (checkout_target(&the_index, ce, &st))
return -1;
}
if (verify_index_match(ce, &st))
@@ -3413,7 +3413,7 @@ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct s
}
*ce = active_cache[pos];
if (stat_ret < 0) {
- if (checkout_target(*ce, st))
+ if (checkout_target(&the_index, *ce, st))
return -1;
}
if (!cached && verify_index_match(*ce, st))
@@ -3646,7 +3646,7 @@ static void build_fake_ancestor(struct patch *list, const char *filename)
{
struct patch *patch;
struct index_state result = { NULL };
- int fd;
+ static struct lock_file lock;
/* Once we start supporting the reverse patch, it may be
* worth showing the new sha1 prefix, but until then...
@@ -3684,8 +3684,8 @@ static void build_fake_ancestor(struct patch *list, const char *filename)
die ("Could not add %s to temporary index", name);
}
- fd = open(filename, O_WRONLY | O_CREAT, 0666);
- if (fd < 0 || write_index(&result, fd) || close(fd))
+ hold_lock_file_for_update(&lock, filename, LOCK_DIE_ON_ERROR);
+ if (write_locked_index(&result, &lock, COMMIT_LOCK))
die ("Could not write temporary index to %s", filename);
discard_index(&result);
@@ -3847,9 +3847,10 @@ static void add_index_file(const char *path, unsigned mode, void *buf, unsigned
ce->ce_flags = create_ce_flags(0);
ce->ce_namelen = namelen;
if (S_ISGITLINK(mode)) {
- const char *s = buf;
+ const char *s;
- if (get_sha1_hex(s + strlen("Subproject commit "), ce->sha1))
+ if (!skip_prefix(buf, "Subproject commit ", &s) ||
+ get_sha1_hex(s, ce->sha1))
die(_("corrupt patch for submodule %s"), path);
} else {
if (!cached) {
@@ -4503,8 +4504,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix_)
}
if (update_index) {
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}
diff --git a/builtin/blame.c b/builtin/blame.c
index d8b2760..c59e702 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -1,7 +1,8 @@
/*
* Blame
*
- * Copyright (c) 2006, Junio C Hamano
+ * Copyright (c) 2006, 2014 by its authors
+ * See COPYING for licensing conditions
*/
#include "cache.h"
@@ -18,7 +19,9 @@
#include "cache-tree.h"
#include "string-list.h"
#include "mailmap.h"
+#include "mergesort.h"
#include "parse-options.h"
+#include "prio-queue.h"
#include "utf8.h"
#include "userdiff.h"
#include "line-range.h"
@@ -83,11 +86,42 @@ static unsigned blame_copy_score;
*/
struct origin {
int refcnt;
+ /* Record preceding blame record for this blob */
struct origin *previous;
+ /* origins are put in a list linked via `next' hanging off the
+ * corresponding commit's util field in order to make finding
+ * them fast. The presence in this chain does not count
+ * towards the origin's reference count. It is tempting to
+ * let it count as long as the commit is pending examination,
+ * but even under circumstances where the commit will be
+ * present multiple times in the priority queue of unexamined
+ * commits, processing the first instance will not leave any
+ * work requiring the origin data for the second instance. An
+ * interspersed commit changing that would have to be
+ * preexisting with a different ancestry and with the same
+ * commit date in order to wedge itself between two instances
+ * of the same commit in the priority queue _and_ produce
+ * blame entries relevant for it. While we don't want to let
+ * us get tripped up by this case, it certainly does not seem
+ * worth optimizing for.
+ */
+ struct origin *next;
struct commit *commit;
+ /* `suspects' contains blame entries that may be attributed to
+ * this origin's commit or to parent commits. When a commit
+ * is being processed, all suspects will be moved, either by
+ * assigning them to an origin in a different commit, or by
+ * shipping them to the scoreboard's ent list because they
+ * cannot be attributed to a different commit.
+ */
+ struct blame_entry *suspects;
mmfile_t file;
unsigned char blob_sha1[20];
unsigned mode;
+ /* guilty gets set when shipping any suspects to the final
+ * blame list instead of other commits
+ */
+ char guilty;
char path[FLEX_ARRAY];
};
@@ -176,10 +210,22 @@ static inline struct origin *origin_incref(struct origin *o)
static void origin_decref(struct origin *o)
{
if (o && --o->refcnt <= 0) {
+ struct origin *p, *l = NULL;
if (o->previous)
origin_decref(o->previous);
free(o->file.ptr);
- free(o);
+ /* Should be present exactly once in commit chain */
+ for (p = o->commit->util; p; l = p, p = p->next) {
+ if (p == o) {
+ if (l)
+ l->next = p->next;
+ else
+ o->commit->util = p->next;
+ free(o);
+ return;
+ }
+ }
+ die("internal error in blame::origin_decref");
}
}
@@ -193,8 +239,12 @@ static void drop_origin_blob(struct origin *o)
/*
* Each group of lines is described by a blame_entry; it can be split
- * as we pass blame to the parents. They form a linked list in the
- * scoreboard structure, sorted by the target line number.
+ * as we pass blame to the parents. They are arranged in linked lists
+ * kept as `suspects' of some unprocessed origin, or entered (when the
+ * blame origin has been finalized) into the scoreboard structure.
+ * While the scoreboard structure is only sorted at the end of
+ * processing (according to final image line number), the lists
+ * attached to an origin are sorted by the target line number.
*/
struct blame_entry {
struct blame_entry *next;
@@ -210,15 +260,6 @@ struct blame_entry {
/* the commit that introduced this group into the final image */
struct origin *suspect;
- /* true if the suspect is truly guilty; false while we have not
- * checked if the group came from one of its parents.
- */
- char guilty;
-
- /* true if the entry has been scanned for copies in the current parent
- */
- char scanned;
-
/* the line number of the first line of this group in the
* suspect's file; internally all line numbers are 0 based.
*/
@@ -231,11 +272,112 @@ struct blame_entry {
};
/*
+ * Any merge of blames happens on lists of blames that arrived via
+ * different parents in a single suspect. In this case, we want to
+ * sort according to the suspect line numbers as opposed to the final
+ * image line numbers. The function body is somewhat longish because
+ * it avoids unnecessary writes.
+ */
+
+static struct blame_entry *blame_merge(struct blame_entry *list1,
+ struct blame_entry *list2)
+{
+ struct blame_entry *p1 = list1, *p2 = list2,
+ **tail = &list1;
+
+ if (!p1)
+ return p2;
+ if (!p2)
+ return p1;
+
+ if (p1->s_lno <= p2->s_lno) {
+ do {
+ tail = &p1->next;
+ if ((p1 = *tail) == NULL) {
+ *tail = p2;
+ return list1;
+ }
+ } while (p1->s_lno <= p2->s_lno);
+ }
+ for (;;) {
+ *tail = p2;
+ do {
+ tail = &p2->next;
+ if ((p2 = *tail) == NULL) {
+ *tail = p1;
+ return list1;
+ }
+ } while (p1->s_lno > p2->s_lno);
+ *tail = p1;
+ do {
+ tail = &p1->next;
+ if ((p1 = *tail) == NULL) {
+ *tail = p2;
+ return list1;
+ }
+ } while (p1->s_lno <= p2->s_lno);
+ }
+}
+
+static void *get_next_blame(const void *p)
+{
+ return ((struct blame_entry *)p)->next;
+}
+
+static void set_next_blame(void *p1, void *p2)
+{
+ ((struct blame_entry *)p1)->next = p2;
+}
+
+/*
+ * Final image line numbers are all different, so we don't need a
+ * three-way comparison here.
+ */
+
+static int compare_blame_final(const void *p1, const void *p2)
+{
+ return ((struct blame_entry *)p1)->lno > ((struct blame_entry *)p2)->lno
+ ? 1 : -1;
+}
+
+static int compare_blame_suspect(const void *p1, const void *p2)
+{
+ const struct blame_entry *s1 = p1, *s2 = p2;
+ /*
+ * to allow for collating suspects, we sort according to the
+ * respective pointer value as the primary sorting criterion.
+ * The actual relation is pretty unimportant as long as it
+ * establishes a total order. Comparing as integers gives us
+ * that.
+ */
+ if (s1->suspect != s2->suspect)
+ return (intptr_t)s1->suspect > (intptr_t)s2->suspect ? 1 : -1;
+ if (s1->s_lno == s2->s_lno)
+ return 0;
+ return s1->s_lno > s2->s_lno ? 1 : -1;
+}
+
+static struct blame_entry *blame_sort(struct blame_entry *head,
+ int (*compare_fn)(const void *, const void *))
+{
+ return llist_mergesort (head, get_next_blame, set_next_blame, compare_fn);
+}
+
+static int compare_commits_by_reverse_commit_date(const void *a,
+ const void *b,
+ void *c)
+{
+ return -compare_commits_by_commit_date(a, b, c);
+}
+
+/*
* The current state of the blame assignment.
*/
struct scoreboard {
/* the final commit (i.e. where we started digging from) */
struct commit *final;
+ /* Priority queue for commits with unassigned blame records */
+ struct prio_queue commits;
struct rev_info *revs;
const char *path;
@@ -268,7 +410,6 @@ static void coalesce(struct scoreboard *sb)
for (ent = sb->ent; ent && (next = ent->next); ent = next) {
if (ent->suspect == next->suspect &&
- ent->guilty == next->guilty &&
ent->s_lno + ent->num_lines == next->s_lno) {
ent->num_lines += next->num_lines;
ent->next = next->next;
@@ -284,6 +425,30 @@ static void coalesce(struct scoreboard *sb)
}
/*
+ * Merge the given sorted list of blames into a preexisting origin.
+ * If there were no previous blames to that commit, it is entered into
+ * the commit priority queue of the score board.
+ */
+
+static void queue_blames(struct scoreboard *sb, struct origin *porigin,
+ struct blame_entry *sorted)
+{
+ if (porigin->suspects)
+ porigin->suspects = blame_merge(porigin->suspects, sorted);
+ else {
+ struct origin *o;
+ for (o = porigin->commit->util; o; o = o->next) {
+ if (o->suspects) {
+ porigin->suspects = sorted;
+ return;
+ }
+ }
+ porigin->suspects = sorted;
+ prio_queue_put(&sb->commits, porigin->commit);
+ }
+}
+
+/*
* Given a commit and a path in it, create a new origin structure.
* The callers that add blame to the scoreboard should use
* get_origin() to obtain shared, refcounted copy instead of calling
@@ -295,23 +460,32 @@ static struct origin *make_origin(struct commit *commit, const char *path)
o = xcalloc(1, sizeof(*o) + strlen(path) + 1);
o->commit = commit;
o->refcnt = 1;
+ o->next = commit->util;
+ commit->util = o;
strcpy(o->path, path);
return o;
}
/*
* Locate an existing origin or create a new one.
+ * This moves the origin to front position in the commit util list.
*/
static struct origin *get_origin(struct scoreboard *sb,
struct commit *commit,
const char *path)
{
- struct blame_entry *e;
+ struct origin *o, *l;
- for (e = sb->ent; e; e = e->next) {
- if (e->suspect->commit == commit &&
- !strcmp(e->suspect->path, path))
- return origin_incref(e->suspect);
+ for (o = commit->util, l = NULL; o; l = o, o = o->next) {
+ if (!strcmp(o->path, path)) {
+ /* bump to front */
+ if (l) {
+ l->next = o->next;
+ o->next = commit->util;
+ commit->util = o;
+ }
+ return origin_incref(o);
+ }
}
return make_origin(commit, path);
}
@@ -350,41 +524,19 @@ static struct origin *find_origin(struct scoreboard *sb,
struct commit *parent,
struct origin *origin)
{
- struct origin *porigin = NULL;
+ struct origin *porigin;
struct diff_options diff_opts;
const char *paths[2];
- if (parent->util) {
- /*
- * Each commit object can cache one origin in that
- * commit. This is a freestanding copy of origin and
- * not refcounted.
- */
- struct origin *cached = parent->util;
- if (!strcmp(cached->path, origin->path)) {
+ /* First check any existing origins */
+ for (porigin = parent->util; porigin; porigin = porigin->next)
+ if (!strcmp(porigin->path, origin->path)) {
/*
* The same path between origin and its parent
* without renaming -- the most common case.
*/
- porigin = get_origin(sb, parent, cached->path);
-
- /*
- * If the origin was newly created (i.e. get_origin
- * would call make_origin if none is found in the
- * scoreboard), it does not know the blob_sha1/mode,
- * so copy it. Otherwise porigin was in the
- * scoreboard and already knows blob_sha1/mode.
- */
- if (porigin->refcnt == 1) {
- hashcpy(porigin->blob_sha1, cached->blob_sha1);
- porigin->mode = cached->mode;
- }
- return porigin;
+ return origin_incref (porigin);
}
- /* otherwise it was not very useful; free it */
- free(parent->util);
- parent->util = NULL;
- }
/* See if the origin->path is different between parent
* and origin first. Most of the time they are the
@@ -450,19 +602,6 @@ static struct origin *find_origin(struct scoreboard *sb,
}
diff_flush(&diff_opts);
free_pathspec(&diff_opts.pathspec);
- if (porigin) {
- /*
- * Create a freestanding copy that is not part of
- * the refcounted origin found in the scoreboard, and
- * cache it in the commit.
- */
- struct origin *cached;
-
- cached = make_origin(porigin->commit, porigin->path);
- hashcpy(cached->blob_sha1, porigin->blob_sha1);
- cached->mode = porigin->mode;
- parent->util = cached;
- }
return porigin;
}
@@ -509,46 +648,31 @@ static struct origin *find_rename(struct scoreboard *sb,
}
/*
- * Link in a new blame entry to the scoreboard. Entries that cover the
- * same line range have been removed from the scoreboard previously.
+ * Append a new blame entry to a given output queue.
*/
-static void add_blame_entry(struct scoreboard *sb, struct blame_entry *e)
+static void add_blame_entry(struct blame_entry ***queue, struct blame_entry *e)
{
- struct blame_entry *ent, *prev = NULL;
-
origin_incref(e->suspect);
- for (ent = sb->ent; ent && ent->lno < e->lno; ent = ent->next)
- prev = ent;
-
- /* prev, if not NULL, is the last one that is below e */
-
- if (prev) {
- e->next = prev->next;
- prev->next = e;
- }
- else {
- e->next = sb->ent;
- sb->ent = e;
- }
+ e->next = **queue;
+ **queue = e;
+ *queue = &e->next;
}
/*
* src typically is on-stack; we want to copy the information in it to
- * a malloced blame_entry that is already on the linked list of the
- * scoreboard. The origin of dst loses a refcnt while the origin of src
- * gains one.
+ * a malloced blame_entry that gets added to the given queue. The
+ * origin of dst loses a refcnt.
*/
-static void dup_entry(struct blame_entry *dst, struct blame_entry *src)
+static void dup_entry(struct blame_entry ***queue,
+ struct blame_entry *dst, struct blame_entry *src)
{
- struct blame_entry *n;
-
- n = dst->next;
origin_incref(src->suspect);
origin_decref(dst->suspect);
memcpy(dst, src, sizeof(*src));
- dst->next = n;
- dst->score = 0;
+ dst->next = **queue;
+ **queue = dst;
+ *queue = &dst->next;
}
static const char *nth_line(struct scoreboard *sb, long lno)
@@ -620,10 +744,11 @@ static void split_overlap(struct blame_entry *split,
/*
* split_overlap() divided an existing blame e into up to three parts
- * in split. Adjust the linked list of blames in the scoreboard to
+ * in split. Any assigned blame is moved to queue to
* reflect the split.
*/
-static void split_blame(struct scoreboard *sb,
+static void split_blame(struct blame_entry ***blamed,
+ struct blame_entry ***unblamed,
struct blame_entry *split,
struct blame_entry *e)
{
@@ -631,61 +756,39 @@ static void split_blame(struct scoreboard *sb,
if (split[0].suspect && split[2].suspect) {
/* The first part (reuse storage for the existing entry e) */
- dup_entry(e, &split[0]);
+ dup_entry(unblamed, e, &split[0]);
/* The last part -- me */
new_entry = xmalloc(sizeof(*new_entry));
memcpy(new_entry, &(split[2]), sizeof(struct blame_entry));
- add_blame_entry(sb, new_entry);
+ add_blame_entry(unblamed, new_entry);
/* ... and the middle part -- parent */
new_entry = xmalloc(sizeof(*new_entry));
memcpy(new_entry, &(split[1]), sizeof(struct blame_entry));
- add_blame_entry(sb, new_entry);
+ add_blame_entry(blamed, new_entry);
}
else if (!split[0].suspect && !split[2].suspect)
/*
* The parent covers the entire area; reuse storage for
* e and replace it with the parent.
*/
- dup_entry(e, &split[1]);
+ dup_entry(blamed, e, &split[1]);
else if (split[0].suspect) {
/* me and then parent */
- dup_entry(e, &split[0]);
+ dup_entry(unblamed, e, &split[0]);
new_entry = xmalloc(sizeof(*new_entry));
memcpy(new_entry, &(split[1]), sizeof(struct blame_entry));
- add_blame_entry(sb, new_entry);
+ add_blame_entry(blamed, new_entry);
}
else {
/* parent and then me */
- dup_entry(e, &split[1]);
+ dup_entry(blamed, e, &split[1]);
new_entry = xmalloc(sizeof(*new_entry));
memcpy(new_entry, &(split[2]), sizeof(struct blame_entry));
- add_blame_entry(sb, new_entry);
- }
-
- if (DEBUG) { /* sanity */
- struct blame_entry *ent;
- int lno = sb->ent->lno, corrupt = 0;
-
- for (ent = sb->ent; ent; ent = ent->next) {
- if (lno != ent->lno)
- corrupt = 1;
- if (ent->s_lno < 0)
- corrupt = 1;
- lno += ent->num_lines;
- }
- if (corrupt) {
- lno = sb->ent->lno;
- for (ent = sb->ent; ent; ent = ent->next) {
- printf("L %8d l %8d n %8d\n",
- lno, ent->lno, ent->num_lines);
- lno = ent->lno + ent->num_lines;
- }
- die("oops");
- }
+ add_blame_entry(unblamed, new_entry);
}
}
@@ -702,74 +805,146 @@ static void decref_split(struct blame_entry *split)
}
/*
- * Helper for blame_chunk(). blame_entry e is known to overlap with
- * the patch hunk; split it and pass blame to the parent.
+ * reverse_blame reverses the list given in head, appending tail.
+ * That allows us to build lists in reverse order, then reverse them
+ * afterwards. This can be faster than building the list in proper
+ * order right away. The reason is that building in proper order
+ * requires writing a link in the _previous_ element, while building
+ * in reverse order just requires placing the list head into the
+ * _current_ element.
*/
-static void blame_overlap(struct scoreboard *sb, struct blame_entry *e,
- int tlno, int plno, int same,
- struct origin *parent)
-{
- struct blame_entry split[3];
-
- split_overlap(split, e, tlno, plno, same, parent);
- if (split[1].suspect)
- split_blame(sb, split, e);
- decref_split(split);
-}
-/*
- * Find the line number of the last line the target is suspected for.
- */
-static int find_last_in_target(struct scoreboard *sb, struct origin *target)
+static struct blame_entry *reverse_blame(struct blame_entry *head,
+ struct blame_entry *tail)
{
- struct blame_entry *e;
- int last_in_target = -1;
-
- for (e = sb->ent; e; e = e->next) {
- if (e->guilty || e->suspect != target)
- continue;
- if (last_in_target < e->s_lno + e->num_lines)
- last_in_target = e->s_lno + e->num_lines;
+ while (head) {
+ struct blame_entry *next = head->next;
+ head->next = tail;
+ tail = head;
+ head = next;
}
- return last_in_target;
+ return tail;
}
/*
* Process one hunk from the patch between the current suspect for
- * blame_entry e and its parent. Find and split the overlap, and
- * pass blame to the overlapping part to the parent.
+ * blame_entry e and its parent. This first blames any unfinished
+ * entries before the chunk (which is where target and parent start
+ * differing) on the parent, and then splits blame entries at the
+ * start and at the end of the difference region. Since use of -M and
+ * -C options may lead to overlapping/duplicate source line number
+ * ranges, all we can rely on from sorting/merging is the order of the
+ * first suspect line number.
*/
-static void blame_chunk(struct scoreboard *sb,
- int tlno, int plno, int same,
- struct origin *target, struct origin *parent)
+static void blame_chunk(struct blame_entry ***dstq, struct blame_entry ***srcq,
+ int tlno, int offset, int same,
+ struct origin *parent)
{
- struct blame_entry *e;
+ struct blame_entry *e = **srcq;
+ struct blame_entry *samep = NULL, *diffp = NULL;
- for (e = sb->ent; e; e = e->next) {
- if (e->guilty || e->suspect != target)
- continue;
- if (same <= e->s_lno)
- continue;
- if (tlno < e->s_lno + e->num_lines)
- blame_overlap(sb, e, tlno, plno, same, parent);
+ while (e && e->s_lno < tlno) {
+ struct blame_entry *next = e->next;
+ /*
+ * current record starts before differing portion. If
+ * it reaches into it, we need to split it up and
+ * examine the second part separately.
+ */
+ if (e->s_lno + e->num_lines > tlno) {
+ /* Move second half to a new record */
+ int len = tlno - e->s_lno;
+ struct blame_entry *n = xcalloc(1, sizeof (struct blame_entry));
+ n->suspect = e->suspect;
+ n->lno = e->lno + len;
+ n->s_lno = e->s_lno + len;
+ n->num_lines = e->num_lines - len;
+ e->num_lines = len;
+ e->score = 0;
+ /* Push new record to diffp */
+ n->next = diffp;
+ diffp = n;
+ } else
+ origin_decref(e->suspect);
+ /* Pass blame for everything before the differing
+ * chunk to the parent */
+ e->suspect = origin_incref(parent);
+ e->s_lno += offset;
+ e->next = samep;
+ samep = e;
+ e = next;
+ }
+ /*
+ * As we don't know how much of a common stretch after this
+ * diff will occur, the currently blamed parts are all that we
+ * can assign to the parent for now.
+ */
+
+ if (samep) {
+ **dstq = reverse_blame(samep, **dstq);
+ *dstq = &samep->next;
+ }
+ /*
+ * Prepend the split off portions: everything after e starts
+ * after the blameable portion.
+ */
+ e = reverse_blame(diffp, e);
+
+ /*
+ * Now retain records on the target while parts are different
+ * from the parent.
+ */
+ samep = NULL;
+ diffp = NULL;
+ while (e && e->s_lno < same) {
+ struct blame_entry *next = e->next;
+
+ /*
+ * If current record extends into sameness, need to split.
+ */
+ if (e->s_lno + e->num_lines > same) {
+ /*
+ * Move second half to a new record to be
+ * processed by later chunks
+ */
+ int len = same - e->s_lno;
+ struct blame_entry *n = xcalloc(1, sizeof (struct blame_entry));
+ n->suspect = origin_incref(e->suspect);
+ n->lno = e->lno + len;
+ n->s_lno = e->s_lno + len;
+ n->num_lines = e->num_lines - len;
+ e->num_lines = len;
+ e->score = 0;
+ /* Push new record to samep */
+ n->next = samep;
+ samep = n;
+ }
+ e->next = diffp;
+ diffp = e;
+ e = next;
}
+ **srcq = reverse_blame(diffp, reverse_blame(samep, e));
+ /* Move across elements that are in the unblamable portion */
+ if (diffp)
+ *srcq = &diffp->next;
}
struct blame_chunk_cb_data {
- struct scoreboard *sb;
- struct origin *target;
struct origin *parent;
- long plno;
- long tlno;
+ long offset;
+ struct blame_entry **dstq;
+ struct blame_entry **srcq;
};
+/* diff chunks are from parent to target */
static int blame_chunk_cb(long start_a, long count_a,
long start_b, long count_b, void *data)
{
struct blame_chunk_cb_data *d = data;
- blame_chunk(d->sb, d->tlno, d->plno, start_b, d->target, d->parent);
- d->plno = start_a + count_a;
- d->tlno = start_b + count_b;
+ if (start_a - start_b != d->offset)
+ die("internal error in blame::blame_chunk_cb");
+ blame_chunk(&d->dstq, &d->srcq, start_b, start_a - start_b,
+ start_b + count_b, d->parent);
+ d->offset = start_a + count_a - (start_b + count_b);
return 0;
}
@@ -778,29 +953,32 @@ static int blame_chunk_cb(long start_a, long count_a,
* for the lines it is suspected to its parent. Run diff to find
* which lines came from parent and pass blame for them.
*/
-static int pass_blame_to_parent(struct scoreboard *sb,
- struct origin *target,
- struct origin *parent)
+static void pass_blame_to_parent(struct scoreboard *sb,
+ struct origin *target,
+ struct origin *parent)
{
- int last_in_target;
mmfile_t file_p, file_o;
struct blame_chunk_cb_data d;
+ struct blame_entry *newdest = NULL;
- memset(&d, 0, sizeof(d));
- d.sb = sb; d.target = target; d.parent = parent;
- last_in_target = find_last_in_target(sb, target);
- if (last_in_target < 0)
- return 1; /* nothing remains for this target */
+ if (!target->suspects)
+ return; /* nothing remains for this target */
+
+ d.parent = parent;
+ d.offset = 0;
+ d.dstq = &newdest; d.srcq = &target->suspects;
fill_origin_blob(&sb->revs->diffopt, parent, &file_p);
fill_origin_blob(&sb->revs->diffopt, target, &file_o);
num_get_patch++;
diff_hunks(&file_p, &file_o, 0, blame_chunk_cb, &d);
- /* The rest (i.e. anything after tlno) are the same as the parent */
- blame_chunk(sb, d.tlno, d.plno, last_in_target, target, parent);
+ /* The rest are the same as the parent */
+ blame_chunk(&d.dstq, &d.srcq, INT_MAX, d.offset, INT_MAX, parent);
+ *d.dstq = NULL;
+ queue_blames(sb, parent, newdest);
- return 0;
+ return;
}
/*
@@ -945,43 +1123,80 @@ static void find_copy_in_blob(struct scoreboard *sb,
handle_split(sb, ent, d.tlno, d.plno, ent->num_lines, parent, split);
}
+/* Move all blame entries from list *source that have a score smaller
+ * than score_min to the front of list *small.
+ * Returns a pointer to the link pointing to the old head of the small list.
+ */
+
+static struct blame_entry **filter_small(struct scoreboard *sb,
+ struct blame_entry **small,
+ struct blame_entry **source,
+ unsigned score_min)
+{
+ struct blame_entry *p = *source;
+ struct blame_entry *oldsmall = *small;
+ while (p) {
+ if (ent_score(sb, p) <= score_min) {
+ *small = p;
+ small = &p->next;
+ p = *small;
+ } else {
+ *source = p;
+ source = &p->next;
+ p = *source;
+ }
+ }
+ *small = oldsmall;
+ *source = NULL;
+ return small;
+}
+
/*
* See if lines currently target is suspected for can be attributed to
* parent.
*/
-static int find_move_in_parent(struct scoreboard *sb,
- struct origin *target,
- struct origin *parent)
+static void find_move_in_parent(struct scoreboard *sb,
+ struct blame_entry ***blamed,
+ struct blame_entry **toosmall,
+ struct origin *target,
+ struct origin *parent)
{
- int last_in_target, made_progress;
struct blame_entry *e, split[3];
+ struct blame_entry *unblamed = target->suspects;
+ struct blame_entry *leftover = NULL;
mmfile_t file_p;
- last_in_target = find_last_in_target(sb, target);
- if (last_in_target < 0)
- return 1; /* nothing remains for this target */
+ if (!unblamed)
+ return; /* nothing remains for this target */
fill_origin_blob(&sb->revs->diffopt, parent, &file_p);
if (!file_p.ptr)
- return 0;
+ return;
- made_progress = 1;
- while (made_progress) {
- made_progress = 0;
- for (e = sb->ent; e; e = e->next) {
- if (e->guilty || e->suspect != target ||
- ent_score(sb, e) < blame_move_score)
- continue;
+ /* At each iteration, unblamed has a NULL-terminated list of
+ * entries that have not yet been tested for blame. leftover
+ * contains the reversed list of entries that have been tested
+ * without being assignable to the parent.
+ */
+ do {
+ struct blame_entry **unblamedtail = &unblamed;
+ struct blame_entry *next;
+ for (e = unblamed; e; e = next) {
+ next = e->next;
find_copy_in_blob(sb, e, parent, split, &file_p);
if (split[1].suspect &&
blame_move_score < ent_score(sb, &split[1])) {
- split_blame(sb, split, e);
- made_progress = 1;
+ split_blame(blamed, &unblamedtail, split, e);
+ } else {
+ e->next = leftover;
+ leftover = e;
}
decref_split(split);
}
- }
- return 0;
+ *unblamedtail = NULL;
+ toosmall = filter_small(sb, toosmall, &unblamed, blame_move_score);
+ } while (unblamed);
+ target->suspects = reverse_blame(leftover, NULL);
}
struct blame_list {
@@ -993,62 +1208,46 @@ struct blame_list {
* Count the number of entries the target is suspected for,
* and prepare a list of entry and the best split.
*/
-static struct blame_list *setup_blame_list(struct scoreboard *sb,
- struct origin *target,
- int min_score,
+static struct blame_list *setup_blame_list(struct blame_entry *unblamed,
int *num_ents_p)
{
struct blame_entry *e;
int num_ents, i;
struct blame_list *blame_list = NULL;
- for (e = sb->ent, num_ents = 0; e; e = e->next)
- if (!e->scanned && !e->guilty &&
- e->suspect == target &&
- min_score < ent_score(sb, e))
- num_ents++;
+ for (e = unblamed, num_ents = 0; e; e = e->next)
+ num_ents++;
if (num_ents) {
blame_list = xcalloc(num_ents, sizeof(struct blame_list));
- for (e = sb->ent, i = 0; e; e = e->next)
- if (!e->scanned && !e->guilty &&
- e->suspect == target &&
- min_score < ent_score(sb, e))
- blame_list[i++].ent = e;
+ for (e = unblamed, i = 0; e; e = e->next)
+ blame_list[i++].ent = e;
}
*num_ents_p = num_ents;
return blame_list;
}
/*
- * Reset the scanned status on all entries.
- */
-static void reset_scanned_flag(struct scoreboard *sb)
-{
- struct blame_entry *e;
- for (e = sb->ent; e; e = e->next)
- e->scanned = 0;
-}
-
-/*
* For lines target is suspected for, see if we can find code movement
* across file boundary from the parent commit. porigin is the path
* in the parent we already tried.
*/
-static int find_copy_in_parent(struct scoreboard *sb,
- struct origin *target,
- struct commit *parent,
- struct origin *porigin,
- int opt)
+static void find_copy_in_parent(struct scoreboard *sb,
+ struct blame_entry ***blamed,
+ struct blame_entry **toosmall,
+ struct origin *target,
+ struct commit *parent,
+ struct origin *porigin,
+ int opt)
{
struct diff_options diff_opts;
int i, j;
- int retval;
struct blame_list *blame_list;
int num_ents;
+ struct blame_entry *unblamed = target->suspects;
+ struct blame_entry *leftover = NULL;
- blame_list = setup_blame_list(sb, target, blame_copy_score, &num_ents);
- if (!blame_list)
- return 1; /* nothing remains for this target */
+ if (!unblamed)
+ return; /* nothing remains for this target */
diff_setup(&diff_opts);
DIFF_OPT_SET(&diff_opts, RECURSIVE);
@@ -1078,9 +1277,9 @@ static int find_copy_in_parent(struct scoreboard *sb,
if (!DIFF_OPT_TST(&diff_opts, FIND_COPIES_HARDER))
diffcore_std(&diff_opts);
- retval = 0;
- while (1) {
- int made_progress = 0;
+ do {
+ struct blame_entry **unblamedtail = &unblamed;
+ blame_list = setup_blame_list(unblamed, &num_ents);
for (i = 0; i < diff_queued_diff.nr; i++) {
struct diff_filepair *p = diff_queued_diff.queue[i];
@@ -1117,27 +1316,21 @@ static int find_copy_in_parent(struct scoreboard *sb,
struct blame_entry *split = blame_list[j].split;
if (split[1].suspect &&
blame_copy_score < ent_score(sb, &split[1])) {
- split_blame(sb, split, blame_list[j].ent);
- made_progress = 1;
+ split_blame(blamed, &unblamedtail, split,
+ blame_list[j].ent);
+ } else {
+ blame_list[j].ent->next = leftover;
+ leftover = blame_list[j].ent;
}
- else
- blame_list[j].ent->scanned = 1;
decref_split(split);
}
free(blame_list);
-
- if (!made_progress)
- break;
- blame_list = setup_blame_list(sb, target, blame_copy_score, &num_ents);
- if (!blame_list) {
- retval = 1;
- break;
- }
- }
- reset_scanned_flag(sb);
+ *unblamedtail = NULL;
+ toosmall = filter_small(sb, toosmall, &unblamed, blame_copy_score);
+ } while (unblamed);
+ target->suspects = reverse_blame(leftover, NULL);
diff_flush(&diff_opts);
free_pathspec(&diff_opts.pathspec);
- return retval;
}
/*
@@ -1147,20 +1340,21 @@ static int find_copy_in_parent(struct scoreboard *sb,
static void pass_whole_blame(struct scoreboard *sb,
struct origin *origin, struct origin *porigin)
{
- struct blame_entry *e;
+ struct blame_entry *e, *suspects;
if (!porigin->file.ptr && origin->file.ptr) {
/* Steal its file */
porigin->file = origin->file;
origin->file.ptr = NULL;
}
- for (e = sb->ent; e; e = e->next) {
- if (e->suspect != origin)
- continue;
+ suspects = origin->suspects;
+ origin->suspects = NULL;
+ for (e = suspects; e; e = e->next) {
origin_incref(porigin);
origin_decref(e->suspect);
e->suspect = porigin;
}
+ queue_blames(sb, porigin, suspects);
}
/*
@@ -1184,6 +1378,27 @@ static int num_scapegoats(struct rev_info *revs, struct commit *commit)
return cnt;
}
+/* Distribute collected unsorted blames to the respected sorted lists
+ * in the various origins.
+ */
+static void distribute_blame(struct scoreboard *sb, struct blame_entry *blamed)
+{
+ blamed = blame_sort(blamed, compare_blame_suspect);
+ while (blamed)
+ {
+ struct origin *porigin = blamed->suspect;
+ struct blame_entry *suspects = NULL;
+ do {
+ struct blame_entry *next = blamed->next;
+ blamed->next = suspects;
+ suspects = blamed;
+ blamed = next;
+ } while (blamed && blamed->suspect == porigin);
+ suspects = reverse_blame(suspects, NULL);
+ queue_blames(sb, porigin, suspects);
+ }
+}
+
#define MAXSG 16
static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt)
@@ -1194,6 +1409,8 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt)
struct commit_list *sg;
struct origin *sg_buf[MAXSG];
struct origin *porigin, **sg_origin = sg_buf;
+ struct blame_entry *toosmall = NULL;
+ struct blame_entry *blames, **blametail = &blames;
num_sg = num_scapegoats(revs, commit);
if (!num_sg)
@@ -1255,38 +1472,71 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt)
origin_incref(porigin);
origin->previous = porigin;
}
- if (pass_blame_to_parent(sb, origin, porigin))
+ pass_blame_to_parent(sb, origin, porigin);
+ if (!origin->suspects)
goto finish;
}
/*
* Optionally find moves in parents' files.
*/
- if (opt & PICKAXE_BLAME_MOVE)
- for (i = 0, sg = first_scapegoat(revs, commit);
- i < num_sg && sg;
- sg = sg->next, i++) {
- struct origin *porigin = sg_origin[i];
- if (!porigin)
- continue;
- if (find_move_in_parent(sb, origin, porigin))
- goto finish;
+ if (opt & PICKAXE_BLAME_MOVE) {
+ filter_small(sb, &toosmall, &origin->suspects, blame_move_score);
+ if (origin->suspects) {
+ for (i = 0, sg = first_scapegoat(revs, commit);
+ i < num_sg && sg;
+ sg = sg->next, i++) {
+ struct origin *porigin = sg_origin[i];
+ if (!porigin)
+ continue;
+ find_move_in_parent(sb, &blametail, &toosmall, origin, porigin);
+ if (!origin->suspects)
+ break;
+ }
}
+ }
/*
* Optionally find copies from parents' files.
*/
- if (opt & PICKAXE_BLAME_COPY)
+ if (opt & PICKAXE_BLAME_COPY) {
+ if (blame_copy_score > blame_move_score)
+ filter_small(sb, &toosmall, &origin->suspects, blame_copy_score);
+ else if (blame_copy_score < blame_move_score) {
+ origin->suspects = blame_merge(origin->suspects, toosmall);
+ toosmall = NULL;
+ filter_small(sb, &toosmall, &origin->suspects, blame_copy_score);
+ }
+ if (!origin->suspects)
+ goto finish;
+
for (i = 0, sg = first_scapegoat(revs, commit);
i < num_sg && sg;
sg = sg->next, i++) {
struct origin *porigin = sg_origin[i];
- if (find_copy_in_parent(sb, origin, sg->item,
- porigin, opt))
+ find_copy_in_parent(sb, &blametail, &toosmall,
+ origin, sg->item, porigin, opt);
+ if (!origin->suspects)
goto finish;
}
+ }
- finish:
+finish:
+ *blametail = NULL;
+ distribute_blame(sb, blames);
+ /*
+ * prepend toosmall to origin->suspects
+ *
+ * There is no point in sorting: this ends up on a big
+ * unsorted list in the caller anyway.
+ */
+ if (toosmall) {
+ struct blame_entry **tail = &toosmall;
+ while (*tail)
+ tail = &(*tail)->next;
+ *tail = origin->suspects;
+ origin->suspects = toosmall;
+ }
for (i = 0; i < num_sg; i++) {
if (sg_origin[i]) {
drop_origin_blob(sg_origin[i]);
@@ -1405,7 +1655,7 @@ static void get_commit_info(struct commit *commit,
{
int len;
const char *subject, *encoding;
- char *message;
+ const char *message;
commit_info_init(ret);
@@ -1416,7 +1666,7 @@ static void get_commit_info(struct commit *commit,
&ret->author_time, &ret->author_tz);
if (!detailed) {
- logmsg_free(message, commit);
+ unuse_commit_buffer(commit, message);
return;
}
@@ -1430,7 +1680,7 @@ static void get_commit_info(struct commit *commit,
else
strbuf_addf(&ret->summary, "(%s)", sha1_to_hex(commit->object.sha1));
- logmsg_free(message, commit);
+ unuse_commit_buffer(commit, message);
}
/*
@@ -1481,14 +1731,11 @@ static int emit_one_suspect_detail(struct origin *suspect, int repeat)
}
/*
- * The blame_entry is found to be guilty for the range. Mark it
- * as such, and show it in incremental output.
+ * The blame_entry is found to be guilty for the range.
+ * Show it in incremental output.
*/
static void found_guilty_entry(struct blame_entry *ent)
{
- if (ent->guilty)
- return;
- ent->guilty = 1;
if (incremental) {
struct origin *suspect = ent->suspect;
@@ -1502,32 +1749,34 @@ static void found_guilty_entry(struct blame_entry *ent)
}
/*
- * The main loop -- while the scoreboard has lines whose true origin
- * is still unknown, pick one blame_entry, and allow its current
- * suspect to pass blames to its parents.
- */
+ * The main loop -- while we have blobs with lines whose true origin
+ * is still unknown, pick one blob, and allow its lines to pass blames
+ * to its parents. */
static void assign_blame(struct scoreboard *sb, int opt)
{
struct rev_info *revs = sb->revs;
+ struct commit *commit = prio_queue_get(&sb->commits);
- while (1) {
+ while (commit) {
struct blame_entry *ent;
- struct commit *commit;
- struct origin *suspect = NULL;
+ struct origin *suspect = commit->util;
/* find one suspect to break down */
- for (ent = sb->ent; !suspect && ent; ent = ent->next)
- if (!ent->guilty)
- suspect = ent->suspect;
- if (!suspect)
- return; /* all done */
+ while (suspect && !suspect->suspects)
+ suspect = suspect->next;
+
+ if (!suspect) {
+ commit = prio_queue_get(&sb->commits);
+ continue;
+ }
+
+ assert(commit == suspect->commit);
/*
* We will use this suspect later in the loop,
* so hold onto it in the meantime.
*/
origin_incref(suspect);
- commit = suspect->commit;
parse_commit(commit);
if (reverse ||
(!(commit->object.flags & UNINTERESTING) &&
@@ -1543,9 +1792,22 @@ static void assign_blame(struct scoreboard *sb, int opt)
commit->object.flags |= UNINTERESTING;
/* Take responsibility for the remaining entries */
- for (ent = sb->ent; ent; ent = ent->next)
- if (ent->suspect == suspect)
+ ent = suspect->suspects;
+ if (ent) {
+ suspect->guilty = 1;
+ for (;;) {
+ struct blame_entry *next = ent->next;
found_guilty_entry(ent);
+ if (next) {
+ ent = next;
+ continue;
+ }
+ ent->next = sb->ent;
+ sb->ent = suspect->suspects;
+ suspect->suspects = NULL;
+ break;
+ }
+ }
origin_decref(suspect);
if (DEBUG) /* sanity */
@@ -1609,9 +1871,8 @@ static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent,
char hex[41];
strcpy(hex, sha1_to_hex(suspect->commit->object.sha1));
- printf("%s%c%d %d %d\n",
+ printf("%s %d %d %d\n",
hex,
- ent->guilty ? ' ' : '*', /* purely for debugging */
ent->s_lno + 1,
ent->lno + 1,
ent->num_lines);
@@ -1724,17 +1985,16 @@ static void output(struct scoreboard *sb, int option)
if (option & OUTPUT_PORCELAIN) {
for (ent = sb->ent; ent; ent = ent->next) {
- struct blame_entry *oth;
- struct origin *suspect = ent->suspect;
- struct commit *commit = suspect->commit;
+ int count = 0;
+ struct origin *suspect;
+ struct commit *commit = ent->suspect->commit;
if (commit->object.flags & MORE_THAN_ONE_PATH)
continue;
- for (oth = ent->next; oth; oth = oth->next) {
- if ((oth->suspect->commit != commit) ||
- !strcmp(oth->suspect->path, suspect->path))
- continue;
- commit->object.flags |= MORE_THAN_ONE_PATH;
- break;
+ for (suspect = commit->util; suspect; suspect = suspect->next) {
+ if (suspect->guilty && count++) {
+ commit->object.flags |= MORE_THAN_ONE_PATH;
+ break;
+ }
}
}
}
@@ -1748,6 +2008,12 @@ static void output(struct scoreboard *sb, int option)
}
}
+static const char *get_next_line(const char *start, const char *end)
+{
+ const char *nl = memchr(start, '\n', end - start);
+ return nl ? nl + 1 : end;
+}
+
/*
* To allow quick access to the contents of nth line in the
* final image, prepare an index in the scoreboard.
@@ -1759,39 +2025,19 @@ static int prepare_lines(struct scoreboard *sb)
const char *end = buf + len;
const char *p;
int *lineno;
- int num = 0, incomplete = 0;
+ int num = 0;
- for (p = buf;;) {
- p = memchr(p, '\n', end - p);
- if (p) {
- p++;
- num++;
- continue;
- }
- break;
- }
+ for (p = buf; p < end; p = get_next_line(p, end))
+ num++;
- if (len && end[-1] != '\n')
- incomplete++; /* incomplete line at the end */
+ sb->lineno = lineno = xmalloc(sizeof(*sb->lineno) * (num + 1));
- sb->lineno = xmalloc(sizeof(*sb->lineno) * (num + incomplete + 1));
- lineno = sb->lineno;
+ for (p = buf; p < end; p = get_next_line(p, end))
+ *lineno++ = p - buf;
- *lineno++ = 0;
- for (p = buf;;) {
- p = memchr(p, '\n', end - p);
- if (p) {
- p++;
- *lineno++ = p - buf;
- continue;
- }
- break;
- }
+ *lineno = len;
- if (incomplete)
- *lineno++ = len;
-
- sb->num_lines = num + incomplete;
+ sb->num_lines = num;
return sb->num_lines;
}
@@ -2006,6 +2252,18 @@ static void append_merge_parents(struct commit_list **tail)
}
/*
+ * This isn't as simple as passing sb->buf and sb->len, because we
+ * want to transfer ownership of the buffer to the commit (so we
+ * must use detach).
+ */
+static void set_commit_buffer_from_strbuf(struct commit *c, struct strbuf *sb)
+{
+ size_t len;
+ void *buf = strbuf_detach(sb, &len);
+ set_commit_buffer(c, buf, len);
+}
+
+/*
* Prepare a dummy commit that represents the work tree (or staged) item.
* Note that annotating work tree item never works in the reverse.
*/
@@ -2026,7 +2284,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
struct strbuf msg = STRBUF_INIT;
time(&now);
- commit = xcalloc(1, sizeof(*commit));
+ commit = alloc_commit_node();
commit->object.parsed = 1;
commit->date = now;
commit->object.type = OBJ_COMMIT;
@@ -2053,7 +2311,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
ident, ident, path,
(!contents_from ? path :
(!strcmp(contents_from, "-") ? "standard input" : contents_from)));
- commit->buffer = strbuf_detach(&msg, NULL);
+ set_commit_buffer_from_strbuf(commit, &msg);
if (!contents_from || strcmp("-", contents_from)) {
struct stat st;
@@ -2098,7 +2356,6 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
origin->file.ptr = buf.buf;
origin->file.size = buf.len;
pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1);
- commit->util = origin;
/*
* Read the current index, replace the path entry with
@@ -2132,7 +2389,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
* right now, but someday we might optimize diff-index --cached
* with cache-tree information.
*/
- cache_tree_invalidate_path(active_cache_tree, path);
+ cache_tree_invalidate_path(&the_index, path);
return commit;
}
@@ -2416,12 +2673,16 @@ parse_done:
memset(&sb, 0, sizeof(sb));
sb.revs = &revs;
- if (!reverse)
+ if (!reverse) {
final_commit_name = prepare_final(&sb);
+ sb.commits.compare = compare_commits_by_commit_date;
+ }
else if (contents_from)
die("--contents and --children do not blend well.");
- else
+ else {
final_commit_name = prepare_initial(&sb);
+ sb.commits.compare = compare_commits_by_reverse_commit_date;
+ }
if (!sb.final) {
/*
@@ -2510,12 +2771,16 @@ parse_done:
ent->next = next;
origin_incref(o);
}
+
+ o->suspects = ent;
+ prio_queue_put(&sb.commits, o->commit);
+
origin_decref(o);
range_set_release(&ranges);
string_list_clear(&range_list, 0);
- sb.ent = ent;
+ sb.ent = NULL;
sb.path = path;
read_mailmap(&mailmap, NULL);
@@ -2528,6 +2793,8 @@ parse_done:
if (incremental)
return 0;
+ sb.ent = blame_sort(sb.ent, compare_blame_final);
+
coalesce(&sb);
if (!(output_option & OUTPUT_PORCELAIN))
diff --git a/builtin/branch.c b/builtin/branch.c
index 652b1d2..0591b22 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -294,13 +294,13 @@ static char *resolve_symref(const char *src, const char *prefix)
{
unsigned char sha1[20];
int flag;
- const char *dst, *cp;
+ const char *dst;
dst = resolve_ref_unsafe(src, sha1, 0, &flag);
if (!(dst && (flag & REF_ISSYMREF)))
return NULL;
- if (prefix && (cp = skip_prefix(dst, prefix)))
- dst = cp;
+ if (prefix)
+ skip_prefix(dst, prefix, &dst);
return xstrdup(dst);
}
diff --git a/builtin/checkout-index.c b/builtin/checkout-index.c
index 61e75eb..05edd9e 100644
--- a/builtin/checkout-index.c
+++ b/builtin/checkout-index.c
@@ -135,6 +135,7 @@ static int option_parse_u(const struct option *opt,
int *newfd = opt->value;
state.refresh_cache = 1;
+ state.istate = &the_index;
if (*newfd < 0)
*newfd = hold_locked_index(&lock_file, 1);
return 0;
@@ -279,8 +280,7 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix)
checkout_all(prefix, prefix_length);
if (0 <= newfd &&
- (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file)))
+ write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die("Unable to write new index file");
return 0;
}
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 07cf555..f71e745 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -225,7 +225,6 @@ static int checkout_paths(const struct checkout_opts *opts,
int flag;
struct commit *head;
int errs = 0;
- int newfd;
struct lock_file *lock_file;
if (opts->track != BRANCH_TRACK_UNSPECIFIED)
@@ -256,7 +255,7 @@ static int checkout_paths(const struct checkout_opts *opts,
lock_file = xcalloc(1, sizeof(struct lock_file));
- newfd = hold_locked_index(lock_file, 1);
+ hold_locked_index(lock_file, 1);
if (read_cache_preload(&opts->pathspec) < 0)
return error(_("corrupt index file"));
@@ -337,6 +336,7 @@ static int checkout_paths(const struct checkout_opts *opts,
memset(&state, 0, sizeof(state));
state.force = 1;
state.refresh_cache = 1;
+ state.istate = &the_index;
for (pos = 0; pos < active_nr; pos++) {
struct cache_entry *ce = active_cache[pos];
if (ce->ce_flags & CE_MATCHED) {
@@ -352,8 +352,7 @@ static int checkout_paths(const struct checkout_opts *opts,
}
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
read_ref_full("HEAD", rev, 0, &flag);
@@ -444,8 +443,8 @@ static int merge_working_tree(const struct checkout_opts *opts,
{
int ret;
struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
- int newfd = hold_locked_index(lock_file, 1);
+ hold_locked_index(lock_file, 1);
if (read_cache_preload(NULL) < 0)
return error(_("corrupt index file"));
@@ -553,8 +552,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
}
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
if (!opts->force && !opts->quiet)
@@ -624,7 +622,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
/* Nothing to do. */
} else if (opts->force_detach || !new->path) { /* No longer on any branch. */
update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL,
- REF_NODEREF, DIE_ON_ERR);
+ REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
if (!opts->quiet) {
if (old->path && advice_detached_head)
detach_advice(new->name);
@@ -651,12 +649,8 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
}
}
if (old->path && old->name) {
- char log_file[PATH_MAX], ref_file[PATH_MAX];
-
- git_snpath(log_file, sizeof(log_file), "logs/%s", old->path);
- git_snpath(ref_file, sizeof(ref_file), "%s", old->path);
- if (!file_exists(ref_file) && file_exists(log_file))
- remove_path(log_file);
+ if (!ref_exists(old->path) && reflog_exists(old->path))
+ delete_reflog(old->path);
}
}
remove_branch_state();
@@ -780,8 +774,8 @@ static int switch_branches(const struct checkout_opts *opts,
if (!(flag & REF_ISSYMREF))
old.path = NULL;
- if (old.path && starts_with(old.path, "refs/heads/"))
- old.name = old.path + strlen("refs/heads/");
+ if (old.path)
+ skip_prefix(old.path, "refs/heads/", &old.name);
if (!new->name) {
new->name = "HEAD";
diff --git a/builtin/clean.c b/builtin/clean.c
index 9a91515..27701d2 100644
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -48,7 +48,7 @@ enum color_clean {
CLEAN_COLOR_PROMPT = 2,
CLEAN_COLOR_HEADER = 3,
CLEAN_COLOR_HELP = 4,
- CLEAN_COLOR_ERROR = 5,
+ CLEAN_COLOR_ERROR = 5
};
#define MENU_OPTS_SINGLETON 01
diff --git a/builtin/clone.c b/builtin/clone.c
index 9b3c04d..f0dabec 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -521,7 +521,7 @@ static void write_followtags(const struct ref *refs, const char *msg)
if (!has_sha1_file(ref->old_sha1))
continue;
update_ref(msg, ref->name, ref->old_sha1,
- NULL, 0, DIE_ON_ERR);
+ NULL, 0, UPDATE_REFS_DIE_ON_ERR);
}
}
@@ -584,19 +584,20 @@ static void update_remote_refs(const struct ref *refs,
static void update_head(const struct ref *our, const struct ref *remote,
const char *msg)
{
- if (our && starts_with(our->name, "refs/heads/")) {
+ const char *head;
+ if (our && skip_prefix(our->name, "refs/heads/", &head)) {
/* Local default branch link */
create_symref("HEAD", our->name, NULL);
if (!option_bare) {
- const char *head = skip_prefix(our->name, "refs/heads/");
- update_ref(msg, "HEAD", our->old_sha1, NULL, 0, DIE_ON_ERR);
+ update_ref(msg, "HEAD", our->old_sha1, NULL, 0,
+ UPDATE_REFS_DIE_ON_ERR);
install_branch_config(0, head, option_origin, our->name);
}
} else if (our) {
struct commit *c = lookup_commit_reference(our->old_sha1);
/* --branch specifies a non-branch (i.e. tags), detach HEAD */
update_ref(msg, "HEAD", c->object.sha1,
- NULL, REF_NODEREF, DIE_ON_ERR);
+ NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
} else if (remote) {
/*
* We know remote HEAD points to a non-branch, or
@@ -604,7 +605,7 @@ static void update_head(const struct ref *our, const struct ref *remote,
* Detach HEAD in all these cases.
*/
update_ref(msg, "HEAD", remote->old_sha1,
- NULL, REF_NODEREF, DIE_ON_ERR);
+ NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
}
}
@@ -616,7 +617,7 @@ static int checkout(void)
struct unpack_trees_options opts;
struct tree *tree;
struct tree_desc t;
- int err = 0, fd;
+ int err = 0;
if (option_no_checkout)
return 0;
@@ -640,7 +641,7 @@ static int checkout(void)
setup_work_tree();
lock_file = xcalloc(1, sizeof(struct lock_file));
- fd = hold_locked_index(lock_file, 1);
+ hold_locked_index(lock_file, 1);
memset(&opts, 0, sizeof opts);
opts.update = 1;
@@ -656,8 +657,7 @@ static int checkout(void)
if (unpack_trees(1, &t, &opts) < 0)
die(_("unable to checkout working tree"));
- if (write_cache(fd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1),
@@ -695,16 +695,19 @@ static void write_refspec_config(const char* src_ref_prefix,
if (option_mirror || !option_bare) {
if (option_single_branch && !option_mirror) {
if (option_branch) {
- if (strstr(our_head_points_at->name, "refs/tags/"))
+ if (starts_with(our_head_points_at->name, "refs/tags/"))
strbuf_addf(&value, "+%s:%s", our_head_points_at->name,
our_head_points_at->name);
else
strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name,
branch_top->buf, option_branch);
} else if (remote_head_points_at) {
+ const char *head = remote_head_points_at->name;
+ if (!skip_prefix(head, "refs/heads/", &head))
+ die("BUG: remote HEAD points at non-head?");
+
strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name,
- branch_top->buf,
- skip_prefix(remote_head_points_at->name, "refs/heads/"));
+ branch_top->buf, head);
}
/*
* otherwise, the next "git fetch" will
diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c
index 987a4c3..8a66c74 100644
--- a/builtin/commit-tree.c
+++ b/builtin/commit-tree.c
@@ -123,8 +123,8 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
die_errno("git commit-tree: failed to read");
}
- if (commit_tree(&buffer, tree_sha1, parents, commit_sha1,
- NULL, sign_commit)) {
+ if (commit_tree(buffer.buf, buffer.len, tree_sha1, parents,
+ commit_sha1, NULL, sign_commit)) {
strbuf_release(&buffer);
return 1;
}
diff --git a/builtin/commit.c b/builtin/commit.c
index 12afc42..72eb3be 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -305,7 +305,6 @@ static void refresh_cache_or_die(int refresh_flags)
static char *prepare_index(int argc, const char **argv, const char *prefix,
const struct commit *current_head, int is_status)
{
- int fd;
struct string_list partial;
struct pathspec pathspec;
int refresh_flags = REFRESH_QUIET;
@@ -321,12 +320,11 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
if (interactive) {
char *old_index_env = NULL;
- fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
refresh_cache_or_die(refresh_flags);
- if (write_cache(fd, active_cache, active_nr) ||
- close_lock_file(&index_lock))
+ if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK))
die(_("unable to create temporary index"));
old_index_env = getenv(INDEX_ENVIRONMENT);
@@ -360,12 +358,11 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
* (B) on failure, rollback the real index.
*/
if (all || (also && pathspec.nr)) {
- fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
add_files_to_cache(also ? prefix : NULL, &pathspec, 0);
refresh_cache_or_die(refresh_flags);
update_main_cache_tree(WRITE_TREE_SILENT);
- if (write_cache(fd, active_cache, active_nr) ||
- close_lock_file(&index_lock))
+ if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK))
die(_("unable to write new_index file"));
commit_style = COMMIT_NORMAL;
return index_lock.filename;
@@ -381,12 +378,12 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
* We still need to refresh the index here.
*/
if (!only && !pathspec.nr) {
- fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
refresh_cache_or_die(refresh_flags);
if (active_cache_changed) {
update_main_cache_tree(WRITE_TREE_SILENT);
- if (write_cache(fd, active_cache, active_nr) ||
- commit_locked_index(&index_lock))
+ if (write_locked_index(&the_index, &index_lock,
+ COMMIT_LOCK))
die(_("unable to write new_index file"));
} else {
rollback_lock_file(&index_lock);
@@ -432,24 +429,22 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
if (read_cache() < 0)
die(_("cannot read the index"));
- fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
add_remove_files(&partial);
refresh_cache(REFRESH_QUIET);
- if (write_cache(fd, active_cache, active_nr) ||
- close_lock_file(&index_lock))
+ if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK))
die(_("unable to write new_index file"));
- fd = hold_lock_file_for_update(&false_lock,
- git_path("next-index-%"PRIuMAX,
- (uintmax_t) getpid()),
- LOCK_DIE_ON_ERROR);
+ hold_lock_file_for_update(&false_lock,
+ git_path("next-index-%"PRIuMAX,
+ (uintmax_t) getpid()),
+ LOCK_DIE_ON_ERROR);
create_base_index(current_head);
add_remove_files(&partial);
refresh_cache(REFRESH_QUIET);
- if (write_cache(fd, active_cache, active_nr) ||
- close_lock_file(&false_lock))
+ if (write_locked_index(&the_index, &false_lock, CLOSE_LOCK))
die(_("unable to write temporary index file"));
discard_cache();
@@ -526,10 +521,29 @@ static int sane_ident_split(struct ident_split *person)
return 1;
}
+static int parse_force_date(const char *in, char *out, int len)
+{
+ if (len < 1)
+ return -1;
+ *out++ = '@';
+ len--;
+
+ if (parse_date(in, out, len) < 0) {
+ int errors = 0;
+ unsigned long t = approxidate_careful(in, &errors);
+ if (errors)
+ return -1;
+ snprintf(out, len, "%lu", t);
+ }
+
+ return 0;
+}
+
static void determine_author_info(struct strbuf *author_ident)
{
char *name, *email, *date;
struct ident_split author;
+ char date_buf[64];
name = getenv("GIT_AUTHOR_NAME");
email = getenv("GIT_AUTHOR_EMAIL");
@@ -574,8 +588,12 @@ static void determine_author_info(struct strbuf *author_ident)
email = xstrndup(lb + 2, rb - (lb + 2));
}
- if (force_date)
- date = force_date;
+ if (force_date) {
+ if (parse_force_date(force_date, date_buf, sizeof(date_buf)))
+ die(_("invalid date format: %s"), force_date);
+ date = date_buf;
+ }
+
strbuf_addstr(author_ident, fmt_ident(name, email, date, IDENT_STRICT));
if (!split_ident_line(&author, author_ident->buf, author_ident->len) &&
sane_ident_split(&author)) {
@@ -585,13 +603,46 @@ static void determine_author_info(struct strbuf *author_ident)
}
}
-static char *cut_ident_timestamp_part(char *string)
+static void split_ident_or_die(struct ident_split *id, const struct strbuf *buf)
{
- char *ket = strrchr(string, '>');
- if (!ket || ket[1] != ' ')
- die(_("Malformed ident string: '%s'"), string);
- *++ket = '\0';
- return ket;
+ if (split_ident_line(id, buf->buf, buf->len) ||
+ !sane_ident_split(id))
+ die(_("Malformed ident string: '%s'"), buf->buf);
+}
+
+static int author_date_is_interesting(void)
+{
+ return author_message || force_date;
+}
+
+static void adjust_comment_line_char(const struct strbuf *sb)
+{
+ char candidates[] = "#;@!$%^&|:";
+ char *candidate;
+ const char *p;
+
+ comment_line_char = candidates[0];
+ if (!memchr(sb->buf, comment_line_char, sb->len))
+ return;
+
+ p = sb->buf;
+ candidate = strchr(candidates, *p);
+ if (candidate)
+ *candidate = ' ';
+ for (p = sb->buf; *p; p++) {
+ if ((p[0] == '\n' || p[0] == '\r') && p[1]) {
+ candidate = strchr(candidates, p[1]);
+ if (candidate)
+ *candidate = ' ';
+ }
+ }
+
+ for (p = candidates; *p == ' '; p++)
+ ;
+ if (!*p)
+ die(_("unable to select a comment character that is not used\n"
+ "in the current commit message"));
+ comment_line_char = *p;
}
static int prepare_to_commit(const char *index_file, const char *prefix,
@@ -747,6 +798,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len)
die_errno(_("could not write commit template"));
+ if (auto_comment_line_char)
+ adjust_comment_line_char(&sb);
strbuf_release(&sb);
/* This checks if committer ident is explicitly given */
@@ -754,7 +807,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
if (use_editor && include_status) {
int ident_shown = 0;
int saved_color_setting;
- char *ai_tmp, *ci_tmp;
+ struct ident_split ci, ai;
+
if (whence != FROM_COMMIT) {
if (cleanup_mode == CLEANUP_SCISSORS)
wt_status_add_cut_line(s->fp);
@@ -794,32 +848,39 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
status_printf_ln(s, GIT_COLOR_NORMAL,
"%s", only_include_assumed);
- ai_tmp = cut_ident_timestamp_part(author_ident->buf);
- ci_tmp = cut_ident_timestamp_part(committer_ident.buf);
- if (strcmp(author_ident->buf, committer_ident.buf))
+ split_ident_or_die(&ai, author_ident);
+ split_ident_or_die(&ci, &committer_ident);
+
+ if (ident_cmp(&ai, &ci))
status_printf_ln(s, GIT_COLOR_NORMAL,
_("%s"
- "Author: %s"),
+ "Author: %.*s <%.*s>"),
ident_shown++ ? "" : "\n",
- author_ident->buf);
+ (int)(ai.name_end - ai.name_begin), ai.name_begin,
+ (int)(ai.mail_end - ai.mail_begin), ai.mail_begin);
+
+ if (author_date_is_interesting())
+ status_printf_ln(s, GIT_COLOR_NORMAL,
+ _("%s"
+ "Date: %s"),
+ ident_shown++ ? "" : "\n",
+ show_ident_date(&ai, DATE_NORMAL));
if (!committer_ident_sufficiently_given())
status_printf_ln(s, GIT_COLOR_NORMAL,
_("%s"
- "Committer: %s"),
+ "Committer: %.*s <%.*s>"),
ident_shown++ ? "" : "\n",
- committer_ident.buf);
+ (int)(ci.name_end - ci.name_begin), ci.name_begin,
+ (int)(ci.mail_end - ci.mail_begin), ci.mail_begin);
if (ident_shown)
- status_printf_ln(s, GIT_COLOR_NORMAL, "");
+ status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
saved_color_setting = s->use_color;
s->use_color = 0;
commitable = run_status(s->fp, index_file, prefix, 1, s);
s->use_color = saved_color_setting;
-
- *ai_tmp = ' ';
- *ci_tmp = ' ';
} else {
unsigned char sha1[20];
const char *parent = "HEAD";
@@ -954,7 +1015,7 @@ static int message_is_empty(struct strbuf *sb)
static int template_untouched(struct strbuf *sb)
{
struct strbuf tmpl = STRBUF_INIT;
- char *start;
+ const char *start;
if (cleanup_mode == CLEANUP_NONE && sb->len)
return 0;
@@ -963,8 +1024,7 @@ static int template_untouched(struct strbuf *sb)
return 0;
stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
- start = (char *)skip_prefix(sb->buf, tmpl.buf);
- if (!start)
+ if (!skip_prefix(sb->buf, tmpl.buf, &start))
start = sb->buf;
strbuf_release(&tmpl);
return rest_is_empty(sb, start - sb->buf);
@@ -1369,6 +1429,13 @@ static void print_summary(const char *prefix, const unsigned char *sha1,
strbuf_addstr(&format, "\n Author: ");
strbuf_addbuf_percentquote(&format, &author_ident);
}
+ if (author_date_is_interesting()) {
+ struct strbuf date = STRBUF_INIT;
+ format_commit_message(commit, "%ad", &date, &pctx);
+ strbuf_addstr(&format, "\n Date: ");
+ strbuf_addbuf_percentquote(&format, &date);
+ strbuf_release(&date);
+ }
if (!committer_ident_sufficiently_given()) {
strbuf_addstr(&format, "\n Committer: ");
strbuf_addbuf_percentquote(&format, &committer_ident);
@@ -1672,8 +1739,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
append_merge_tag_headers(parents, &tail);
}
- if (commit_tree_extended(&sb, active_cache_tree->sha1, parents, sha1,
- author_ident.buf, sign_commit, extra)) {
+ if (commit_tree_extended(sb.buf, sb.len, active_cache_tree->sha1,
+ parents, sha1, author_ident.buf, sign_commit, extra)) {
rollback_index_files();
die(_("failed to write commit object"));
}
@@ -1685,6 +1752,10 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
? NULL
: current_head->object.sha1,
0, NULL);
+ if (!ref_lock) {
+ rollback_index_files();
+ die(_("cannot lock HEAD ref"));
+ }
nl = strchr(sb.buf, '\n');
if (nl)
@@ -1694,10 +1765,6 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg));
strbuf_insert(&sb, strlen(reflog_msg), ": ", 2);
- if (!ref_lock) {
- rollback_index_files();
- die(_("cannot lock HEAD ref"));
- }
if (write_ref_sha1(ref_lock, sha1, sb.buf) < 0) {
rollback_index_files();
die(_("cannot update HEAD ref"));
diff --git a/builtin/config.c b/builtin/config.c
index 5677c94..fcd8474 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -395,19 +395,6 @@ static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
return 0;
}
-static char *dup_downcase(const char *string)
-{
- char *result;
- size_t len, i;
-
- len = strlen(string);
- result = xmalloc(len + 1);
- for (i = 0; i < len; i++)
- result[i] = tolower(string[i]);
- result[i] = '\0';
- return result;
-}
-
static int get_urlmatch(const char *var, const char *url)
{
char *section_tail;
@@ -422,7 +409,7 @@ static int get_urlmatch(const char *var, const char *url)
if (!url_normalize(url, &config.url))
die("%s", config.url.err);
- config.section = dup_downcase(var);
+ config.section = xstrdup_tolower(var);
section_tail = strchr(config.section, '.');
if (section_tail) {
*section_tail = '\0';
diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index be6417d..ce0e019 100644
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -22,14 +22,10 @@ static int stdin_diff_commit(struct commit *commit, char *line, int len)
if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) {
/* Graft the fake parents locally to the commit */
int pos = 41;
- struct commit_list **pptr, *parents;
+ struct commit_list **pptr;
/* Free the real parent list */
- for (parents = commit->parents; parents; ) {
- struct commit_list *tmp = parents->next;
- free(parents);
- parents = tmp;
- }
+ free_commit_list(commit->parents);
commit->parents = NULL;
pptr = &(commit->parents);
while (line[pos] && !get_sha1_hex(line + pos, sha1)) {
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index b8d8a3a..92b4624 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -17,6 +17,7 @@
#include "utf8.h"
#include "parse-options.h"
#include "quote.h"
+#include "remote.h"
static const char *fast_export_usage[] = {
N_("git fast-export [rev-list-opts]"),
@@ -31,6 +32,8 @@ static int use_done_feature;
static int no_data;
static int full_tree;
static struct string_list extra_refs = STRING_LIST_INIT_NODUP;
+static struct refspec *refspecs;
+static int refspecs_nr;
static int parse_opt_signed_tag_mode(const struct option *opt,
const char *arg, int unset)
@@ -279,6 +282,7 @@ static const char *find_encoding(const char *begin, const char *end)
static void handle_commit(struct commit *commit, struct rev_info *rev)
{
int saved_output_format = rev->diffopt.output_format;
+ const char *commit_buffer;
const char *author, *author_end, *committer, *committer_end;
const char *encoding, *message;
char *reencoded = NULL;
@@ -288,7 +292,8 @@ static void handle_commit(struct commit *commit, struct rev_info *rev)
rev->diffopt.output_format = DIFF_FORMAT_CALLBACK;
parse_commit_or_die(commit);
- author = strstr(commit->buffer, "\nauthor ");
+ commit_buffer = get_commit_buffer(commit, NULL);
+ author = strstr(commit_buffer, "\nauthor ");
if (!author)
die ("Could not find author in commit %s",
sha1_to_hex(commit->object.sha1));
@@ -335,6 +340,7 @@ static void handle_commit(struct commit *commit, struct rev_info *rev)
? strlen(message) : 0),
reencoded ? reencoded : message ? message : "");
free(reencoded);
+ unuse_commit_buffer(commit, commit_buffer);
for (i = 0, p = commit->parents; p; p = p->next) {
int mark = get_object_mark(&p->item->object);
@@ -525,6 +531,15 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info)
if (dwim_ref(e->name, strlen(e->name), sha1, &full_name) != 1)
continue;
+ if (refspecs) {
+ char *private;
+ private = apply_refspecs(refspecs, refspecs_nr, full_name);
+ if (private) {
+ free(full_name);
+ full_name = private;
+ }
+ }
+
commit = get_commit(e, full_name);
if (!commit) {
warning("%s: Unexpected object of type %s, skipping.",
@@ -661,6 +676,19 @@ static void import_marks(char *input_file)
fclose(f);
}
+static void handle_deletes(void)
+{
+ int i;
+ for (i = 0; i < refspecs_nr; i++) {
+ struct refspec *refspec = &refspecs[i];
+ if (*refspec->src)
+ continue;
+
+ printf("reset %s\nfrom %s\n\n",
+ refspec->dst, sha1_to_hex(null_sha1));
+ }
+}
+
int cmd_fast_export(int argc, const char **argv, const char *prefix)
{
struct rev_info revs;
@@ -668,6 +696,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
struct commit *commit;
char *export_filename = NULL, *import_filename = NULL;
uint32_t lastimportid;
+ struct string_list refspecs_list = STRING_LIST_INIT_NODUP;
struct option options[] = {
OPT_INTEGER(0, "progress", &progress,
N_("show progress after <n> objects")),
@@ -688,6 +717,8 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
OPT_BOOL(0, "use-done-feature", &use_done_feature,
N_("Use the done feature to terminate the stream")),
OPT_BOOL(0, "no-data", &no_data, N_("Skip output of blob data")),
+ OPT_STRING_LIST(0, "refspec", &refspecs_list, N_("refspec"),
+ N_("Apply refspec to exported refs")),
OPT_END()
};
@@ -701,11 +732,27 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
revs.topo_order = 1;
revs.show_source = 1;
revs.rewrite_parents = 1;
+ argc = parse_options(argc, argv, prefix, options, fast_export_usage,
+ PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN);
argc = setup_revisions(argc, argv, &revs, NULL);
- argc = parse_options(argc, argv, prefix, options, fast_export_usage, 0);
if (argc > 1)
usage_with_options (fast_export_usage, options);
+ if (refspecs_list.nr) {
+ const char **refspecs_str;
+ int i;
+
+ refspecs_str = xmalloc(sizeof(*refspecs_str) * refspecs_list.nr);
+ for (i = 0; i < refspecs_list.nr; i++)
+ refspecs_str[i] = refspecs_list.items[i].string;
+
+ refspecs_nr = refspecs_list.nr;
+ refspecs = parse_fetch_refspec(refspecs_nr, refspecs_str);
+
+ string_list_clear(&refspecs_list, 1);
+ free(refspecs_str);
+ }
+
if (use_done_feature)
printf("feature done\n");
@@ -733,6 +780,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
}
handle_tags_and_duplicates();
+ handle_deletes();
if (export_filename && lastimportid != last_idnum)
export_marks(export_filename);
@@ -740,5 +788,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
if (use_done_feature)
printf("done\n");
+ free_refspec(refspecs_nr, refspecs);
+
return 0;
}
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 55f457c..e8d0cca 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -45,6 +45,8 @@ static struct transport *gsecondary;
static const char *submodule_prefix = "";
static const char *recurse_submodules_default;
static int shown_url = 0;
+static int refmap_alloc, refmap_nr;
+static const char **refmap_array;
static int option_parse_recurse_submodules(const struct option *opt,
const char *arg, int unset)
@@ -69,6 +71,19 @@ static int git_fetch_config(const char *k, const char *v, void *cb)
return 0;
}
+static int parse_refmap_arg(const struct option *opt, const char *arg, int unset)
+{
+ ALLOC_GROW(refmap_array, refmap_nr + 1, refmap_alloc);
+
+ /*
+ * "git fetch --refmap='' origin foo"
+ * can be used to tell the command not to store anywhere
+ */
+ if (*arg)
+ refmap_array[refmap_nr++] = arg;
+ return 0;
+}
+
static struct option builtin_fetch_options[] = {
OPT__VERBOSITY(&verbosity),
OPT_BOOL(0, "all", &all,
@@ -107,6 +122,8 @@ static struct option builtin_fetch_options[] = {
N_("default mode for recursion"), PARSE_OPT_HIDDEN },
OPT_BOOL(0, "update-shallow", &update_shallow,
N_("accept refs that update .git/shallow")),
+ { OPTION_CALLBACK, 0, "refmap", NULL, N_("refmap"),
+ N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg },
OPT_END()
};
@@ -278,6 +295,9 @@ static struct ref *get_ref_map(struct transport *transport,
const struct ref *remote_refs = transport_get_remote_refs(transport);
if (refspec_count) {
+ struct refspec *fetch_refspec;
+ int fetch_refspec_nr;
+
for (i = 0; i < refspec_count; i++) {
get_fetch_map(remote_refs, &refspecs[i], &tail, 0);
if (refspecs[i].dst && refspecs[i].dst[0])
@@ -307,12 +327,21 @@ static struct ref *get_ref_map(struct transport *transport,
* by ref_remove_duplicates() in favor of one of these
* opportunistic entries with FETCH_HEAD_IGNORE.
*/
- for (i = 0; i < transport->remote->fetch_refspec_nr; i++)
- get_fetch_map(ref_map, &transport->remote->fetch[i],
- &oref_tail, 1);
+ if (refmap_array) {
+ fetch_refspec = parse_fetch_refspec(refmap_nr, refmap_array);
+ fetch_refspec_nr = refmap_nr;
+ } else {
+ fetch_refspec = transport->remote->fetch;
+ fetch_refspec_nr = transport->remote->fetch_refspec_nr;
+ }
+
+ for (i = 0; i < fetch_refspec_nr; i++)
+ get_fetch_map(ref_map, &fetch_refspec[i], &oref_tail, 1);
if (tags == TAGS_SET)
get_fetch_map(remote_refs, tag_refspec, &tail, 0);
+ } else if (refmap_array) {
+ die("--refmap option is only meaningful with command-line refspec(s).");
} else {
/* Use the defaults */
struct remote *remote = transport->remote;
@@ -1053,16 +1082,11 @@ static int fetch_one(struct remote *remote, int argc, const char **argv)
refs = xcalloc(argc + 1, sizeof(const char *));
for (i = 0; i < argc; i++) {
if (!strcmp(argv[i], "tag")) {
- char *ref;
i++;
if (i >= argc)
die(_("You need to specify a tag name."));
- ref = xmalloc(strlen(argv[i]) * 2 + 22);
- strcpy(ref, "refs/tags/");
- strcat(ref, argv[i]);
- strcat(ref, ":refs/tags/");
- strcat(ref, argv[i]);
- refs[j++] = ref;
+ refs[j++] = xstrfmt("refs/tags/%s:refs/tags/%s",
+ argv[i], argv[i]);
} else
refs[j++] = argv[i];
}
diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index 3906eda..79df05e 100644
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -100,7 +100,8 @@ static int handle_line(char *line, struct merge_parents *merge_parents)
{
int i, len = strlen(line);
struct origin_data *origin_data;
- char *src, *origin;
+ char *src;
+ const char *origin;
struct src_data *src_data;
struct string_list_item *item;
int pulling_head = 0;
@@ -164,8 +165,7 @@ static int handle_line(char *line, struct merge_parents *merge_parents)
origin = line;
string_list_append(&src_data->tag, origin + 4);
src_data->head_status |= 2;
- } else if (starts_with(line, "remote-tracking branch ")) {
- origin = line + strlen("remote-tracking branch ");
+ } else if (skip_prefix(line, "remote-tracking branch ", &origin)) {
string_list_append(&src_data->r_branch, origin);
src_data->head_status |= 2;
} else {
@@ -178,11 +178,8 @@ static int handle_line(char *line, struct merge_parents *merge_parents)
int len = strlen(origin);
if (origin[0] == '\'' && origin[len - 1] == '\'')
origin = xmemdupz(origin + 1, len - 2);
- } else {
- char *new_origin = xmalloc(strlen(origin) + strlen(src) + 5);
- sprintf(new_origin, "%s of %s", origin, src);
- origin = new_origin;
- }
+ } else
+ origin = xstrfmt("%s of %s", origin, src);
if (strcmp(".", src))
origin_data->is_local_branch = 0;
string_list_append(&origins, origin)->util = origin_data;
@@ -230,12 +227,14 @@ static void add_branch_desc(struct strbuf *out, const char *name)
static void record_person(int which, struct string_list *people,
struct commit *commit)
{
+ const char *buffer;
char *name_buf, *name, *name_end;
struct string_list_item *elem;
const char *field;
field = (which == 'a') ? "\nauthor " : "\ncommitter ";
- name = strstr(commit->buffer, field);
+ buffer = get_commit_buffer(commit, NULL);
+ name = strstr(buffer, field);
if (!name)
return;
name += strlen(field);
@@ -247,6 +246,7 @@ static void record_person(int which, struct string_list *people,
if (name_end < name)
return;
name_buf = xmemdupz(name, name_end - name + 1);
+ unuse_commit_buffer(commit, buffer);
elem = string_list_lookup(people, name_buf);
if (!elem) {
@@ -297,8 +297,8 @@ static void credit_people(struct strbuf *out,
if (!them->nr ||
(them->nr == 1 &&
me &&
- (me = skip_prefix(me, them->items->string)) != NULL &&
- skip_prefix(me, " <")))
+ skip_prefix(me, them->items->string, &me) &&
+ starts_with(me, " <")))
return;
strbuf_addf(out, "\n%c %s ", comment_line_char, label);
add_people_count(out, them);
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index 3e1d5c3..4135980 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -193,7 +193,7 @@ static int verify_format(const char *format)
at = parse_atom(sp + 2, ep);
cp = ep + 1;
- if (!memcmp(used_atom[at], "color:", 6))
+ if (starts_with(used_atom[at], "color:"))
need_color_reset_at_eol = !!strcmp(used_atom[at], color_reset);
}
return 0;
diff --git a/builtin/fsck.c b/builtin/fsck.c
index fc150c8..8aadca1 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -310,8 +310,7 @@ static int fsck_obj(struct object *obj)
if (obj->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *) obj;
- free(commit->buffer);
- commit->buffer = NULL;
+ free_commit_buffer(commit);
if (!commit->parents && show_root)
printf("root %s\n", sha1_to_hex(commit->object.sha1));
diff --git a/builtin/grep.c b/builtin/grep.c
index b8d440d..c86a142 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -361,9 +361,7 @@ static void run_pager(struct grep_opt *opt, const char *prefix)
argv[i] = path_list->items[i].string;
argv[path_list->nr] = NULL;
- if (prefix && chdir(prefix))
- die(_("Failed to chdir: %s"), prefix);
- status = run_command_v_opt(argv, RUN_USING_SHELL);
+ status = run_command_v_opt_cd_env(argv, RUN_USING_SHELL, prefix, NULL);
if (status)
exit(status);
free(argv);
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index d4b77fd..fc40411 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -786,7 +786,8 @@ static void sha1_object(const void *data, struct object_entry *obj_entry,
}
if (obj->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *) obj;
- commit->buffer = NULL;
+ if (detach_commit_buffer(commit, NULL) != data)
+ die("BUG: parse_object_buffer transmogrified our buffer");
}
obj->flags |= FLAG_CHECKED;
}
diff --git a/builtin/log.c b/builtin/log.c
index 3b6a6bb..27c1b65 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -63,6 +63,8 @@ static int parse_decoration_style(const char *var, const char *value)
return DECORATE_FULL_REFS;
else if (!strcmp(value, "short"))
return DECORATE_SHORT_REFS;
+ else if (!strcmp(value, "auto"))
+ return (isatty(1) || pager_in_use()) ? DECORATE_SHORT_REFS : 0;
return -1;
}
@@ -345,8 +347,7 @@ static int cmd_log_walk(struct rev_info *rev)
rev->max_count++;
if (!rev->reflog_info) {
/* we allow cycles in reflog ancestry */
- free(commit->buffer);
- commit->buffer = NULL;
+ free_commit_buffer(commit);
}
free_commit_list(commit->parents);
commit->parents = NULL;
@@ -669,6 +670,7 @@ static void add_header(const char *value)
static int thread;
static int do_signoff;
static const char *signature = git_version_string;
+static const char *signature_file;
static int config_cover_letter;
enum {
@@ -738,6 +740,8 @@ static int git_format_config(const char *var, const char *value, void *cb)
}
if (!strcmp(var, "format.signature"))
return git_config_string(&signature, var, value);
+ if (!strcmp(var, "format.signaturefile"))
+ return git_config_pathname(&signature_file, var, value);
if (!strcmp(var, "format.coverletter")) {
if (value && !strcasecmp(value, "auto")) {
config_cover_letter = COVER_AUTO;
@@ -840,8 +844,13 @@ static void gen_message_id(struct rev_info *info, char *base)
static void print_signature(void)
{
- if (signature && *signature)
- printf("-- \n%s\n\n", signature);
+ if (!signature || !*signature)
+ return;
+
+ printf("-- \n%s", signature);
+ if (signature[strlen(signature)-1] != '\n')
+ putchar('\n');
+ putchar('\n');
}
static void add_branch_description(struct strbuf *buf, const char *branch_name)
@@ -862,7 +871,7 @@ static char *find_branch_name(struct rev_info *rev)
int i, positive = -1;
unsigned char branch_sha1[20];
const unsigned char *tip_sha1;
- const char *ref;
+ const char *ref, *v;
char *full_ref, *branch = NULL;
for (i = 0; i < rev->cmdline.nr; i++) {
@@ -878,9 +887,9 @@ static char *find_branch_name(struct rev_info *rev)
ref = rev->cmdline.rev[positive].name;
tip_sha1 = rev->cmdline.rev[positive].item->sha1;
if (dwim_ref(ref, strlen(ref), branch_sha1, &full_ref) &&
- starts_with(full_ref, "refs/heads/") &&
+ skip_prefix(full_ref, "refs/heads/", &v) &&
!hashcmp(tip_sha1, branch_sha1))
- branch = xstrdup(full_ref + strlen("refs/heads/"));
+ branch = xstrdup(v);
free(full_ref);
return branch;
}
@@ -915,9 +924,12 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
log_write_email_headers(rev, head, &pp.subject, &pp.after_subject,
&need_8bit_cte);
- for (i = 0; !need_8bit_cte && i < nr; i++)
- if (has_non_ascii(list[i]->buffer))
+ for (i = 0; !need_8bit_cte && i < nr; i++) {
+ const char *buf = get_commit_buffer(list[i], NULL);
+ if (has_non_ascii(buf))
need_8bit_cte = 1;
+ unuse_commit_buffer(list[i], buf);
+ }
if (!branch_name)
branch_name = find_branch_name(rev);
@@ -1226,6 +1238,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
PARSE_OPT_OPTARG, thread_callback },
OPT_STRING(0, "signature", &signature, N_("signature"),
N_("add a signature")),
+ OPT_FILENAME(0, "signature-file", &signature_file,
+ N_("add a signature from a file")),
OPT__QUIET(&quiet, N_("don't print the patch filenames")),
OPT_END()
};
@@ -1382,10 +1396,10 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
if (check_head) {
unsigned char sha1[20];
- const char *ref;
+ const char *ref, *v;
ref = resolve_ref_unsafe("HEAD", sha1, 1, NULL);
- if (ref && starts_with(ref, "refs/heads/"))
- branch_name = xstrdup(ref + strlen("refs/heads/"));
+ if (ref && skip_prefix(ref, "refs/heads/", &v))
+ branch_name = xstrdup(v);
else
branch_name = xstrdup(""); /* no branch */
}
@@ -1443,6 +1457,18 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
cover_letter = (config_cover_letter == COVER_ON);
}
+ if (!signature) {
+ ; /* --no-signature inhibits all signatures */
+ } else if (signature && signature != git_version_string) {
+ ; /* non-default signature already set */
+ } else if (signature_file) {
+ struct strbuf buf = STRBUF_INIT;
+
+ if (strbuf_read_file(&buf, signature_file, 128) < 0)
+ die_errno(_("unable to read signature file '%s'"), signature_file);
+ signature = strbuf_detach(&buf, NULL);
+ }
+
if (in_reply_to || thread || cover_letter)
rev.ref_message_ids = xcalloc(1, sizeof(struct string_list));
if (in_reply_to) {
@@ -1504,8 +1530,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
reopen_stdout(rev.numbered_files ? NULL : commit, NULL, &rev, quiet))
die(_("Failed to create output files"));
shown = log_tree_commit(&rev, commit);
- free(commit->buffer);
- commit->buffer = NULL;
+ free_commit_buffer(commit);
/* We put one extra blank line between formatted
* patches and this flag is used by log-tree code
diff --git a/builtin/ls-remote.c b/builtin/ls-remote.c
index 3e9eefb..b2a4b92 100644
--- a/builtin/ls-remote.c
+++ b/builtin/ls-remote.c
@@ -92,7 +92,7 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
if (argv[i]) {
int j;
- pattern = xcalloc(sizeof(const char *), argc - i + 1);
+ pattern = xcalloc(argc - i + 1, sizeof(const char *));
for (j = i; j < argc; j++) {
int len = strlen(argv[j]);
char *p = xmalloc(len + 3);
diff --git a/builtin/merge.c b/builtin/merge.c
index 66d8843..22491a1 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -63,7 +63,7 @@ static int verbosity;
static int allow_rerere_auto;
static int abort_current_merge;
static int show_progress = -1;
-static int default_to_upstream;
+static int default_to_upstream = 1;
static const char *sign_commit;
static struct strategy all_strategy[] = {
@@ -398,7 +398,7 @@ static void finish(struct commit *head_commit,
const char *argv_gc_auto[] = { "gc", "--auto", NULL };
update_ref(reflog_message.buf, "HEAD",
new_head, head, 0,
- DIE_ON_ERR);
+ UPDATE_REFS_DIE_ON_ERR);
/*
* We ignore errors in 'gc --auto', since the
* user should see them.
@@ -657,14 +657,12 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
struct commit_list *remoteheads,
struct commit *head, const char *head_arg)
{
- int index_fd;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
- index_fd = hold_locked_index(lock, 1);
+ hold_locked_index(lock, 1);
refresh_cache(REFRESH_QUIET);
if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(lock)))
+ write_locked_index(&the_index, lock, COMMIT_LOCK))
return error(_("Unable to write index."));
rollback_lock_file(lock);
@@ -672,7 +670,6 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
int clean, x;
struct commit *result;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
- int index_fd;
struct commit_list *reversed = NULL;
struct merge_options o;
struct commit_list *j;
@@ -700,12 +697,11 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
for (j = common; j; j = j->next)
commit_list_insert(j->item, &reversed);
- index_fd = hold_locked_index(lock, 1);
+ hold_locked_index(lock, 1);
clean = merge_recursive(&o, head,
remoteheads->item, reversed, &result);
if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(lock)))
+ write_locked_index(&the_index, lock, COMMIT_LOCK))
die (_("unable to write %s"), get_index_file());
rollback_lock_file(lock);
return clean ? 0 : 1;
@@ -852,8 +848,8 @@ static int merge_trivial(struct commit *head, struct commit_list *remoteheads)
parent->next->item = remoteheads->item;
parent->next->next = NULL;
prepare_to_commit(remoteheads);
- if (commit_tree(&merge_msg, result_tree, parent, result_commit, NULL,
- sign_commit))
+ if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parent,
+ result_commit, NULL, sign_commit))
die(_("failed to write commit object"));
finish(head, remoteheads, result_commit, "In-index merge");
drop_save();
@@ -877,8 +873,8 @@ static int finish_automerge(struct commit *head,
commit_list_insert(head, &parents);
strbuf_addch(&merge_msg, '\n');
prepare_to_commit(remoteheads);
- if (commit_tree(&merge_msg, result_tree, parents, result_commit,
- NULL, sign_commit))
+ if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parents,
+ result_commit, NULL, sign_commit))
die(_("failed to write commit object"));
strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy);
finish(head, remoteheads, result_commit, buf.buf);
@@ -1222,7 +1218,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
die(_("%s - not something we can merge"), argv[0]);
read_empty(remote_head->object.sha1, 0);
update_ref("initial pull", "HEAD", remote_head->object.sha1,
- NULL, 0, DIE_ON_ERR);
+ NULL, 0, UPDATE_REFS_DIE_ON_ERR);
goto done;
} else {
struct strbuf merge_names = STRBUF_INIT;
@@ -1282,10 +1278,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
printf(_("Commit %s has a good GPG signature by %s\n"),
hex, signature_check.signer);
- free(signature_check.gpg_output);
- free(signature_check.gpg_status);
- free(signature_check.signer);
- free(signature_check.key);
+ signature_check_clear(&signature_check);
}
}
@@ -1339,7 +1332,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
}
update_ref("updating ORIG_HEAD", "ORIG_HEAD", head_commit->object.sha1,
- NULL, 0, DIE_ON_ERR);
+ NULL, 0, UPDATE_REFS_DIE_ON_ERR);
if (remoteheads && !common)
; /* No common ancestors found. We need a real merge. */
diff --git a/builtin/mv.c b/builtin/mv.c
index 180ef99..6ffe540 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -63,7 +63,7 @@ static struct lock_file lock_file;
int cmd_mv(int argc, const char **argv, const char *prefix)
{
- int i, newfd, gitmodules_modified = 0;
+ int i, gitmodules_modified = 0;
int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
struct option builtin_mv_options[] = {
OPT__VERBOSE(&verbose, N_("be verbose")),
@@ -85,7 +85,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
if (--argc < 1)
usage_with_options(builtin_mv_usage, builtin_mv_options);
- newfd = hold_locked_index(&lock_file, 1);
+ hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die(_("index file corrupt"));
@@ -276,8 +276,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
stage_updated_gitmodules();
if (active_cache_changed) {
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}
diff --git a/builtin/name-rev.c b/builtin/name-rev.c
index c824d4e..3c8f319 100644
--- a/builtin/name-rev.c
+++ b/builtin/name-rev.c
@@ -33,10 +33,7 @@ static void name_rev(struct commit *commit,
return;
if (deref) {
- char *new_name = xmalloc(strlen(tip_name)+3);
- strcpy(new_name, tip_name);
- strcat(new_name, "^0");
- tip_name = new_name;
+ tip_name = xstrfmt("%s^0", tip_name);
if (generation)
die("generation: %d, but deref?", generation);
diff --git a/builtin/notes.c b/builtin/notes.c
index 39c8573..820c341 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -717,7 +717,7 @@ static int merge_commit(struct notes_merge_options *o)
strbuf_insert(&msg, 0, "notes: ", 7);
update_ref(msg.buf, o->local_ref, sha1,
is_null_sha1(parent_sha1) ? NULL : parent_sha1,
- 0, DIE_ON_ERR);
+ 0, UPDATE_REFS_DIE_ON_ERR);
free_notes(t);
strbuf_release(&msg);
@@ -812,11 +812,11 @@ static int merge(int argc, const char **argv, const char *prefix)
if (result >= 0) /* Merge resulted (trivially) in result_sha1 */
/* Update default notes ref with new commit */
update_ref(msg.buf, default_notes_ref(), result_sha1, NULL,
- 0, DIE_ON_ERR);
+ 0, UPDATE_REFS_DIE_ON_ERR);
else { /* Merge has unresolved conflicts */
/* Update .git/NOTES_MERGE_PARTIAL with partial merge result */
update_ref(msg.buf, "NOTES_MERGE_PARTIAL", result_sha1, NULL,
- 0, DIE_ON_ERR);
+ 0, UPDATE_REFS_DIE_ON_ERR);
/* Store ref-to-be-updated into .git/NOTES_MERGE_REF */
if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL))
die("Failed to store link to current notes ref (%s)",
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index de36c60..238b502 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -2214,10 +2214,6 @@ static int git_pack_config(const char *k, const char *v, void *cb)
cache_max_small_delta_size = git_config_int(k, v);
return 0;
}
- if (!strcmp(k, "pack.writebitmaps")) {
- write_bitmap_index = git_config_bool(k, v);
- return 0;
- }
if (!strcmp(k, "pack.writebitmaphashcache")) {
if (git_config_bool(k, v))
write_bitmap_options |= BITMAP_OPT_HASH_CACHE;
diff --git a/builtin/patch-id.c b/builtin/patch-id.c
index 3cfe02d..77db873 100644
--- a/builtin/patch-id.c
+++ b/builtin/patch-id.c
@@ -1,17 +1,14 @@
#include "builtin.h"
-static void flush_current_id(int patchlen, unsigned char *id, git_SHA_CTX *c)
+static void flush_current_id(int patchlen, unsigned char *id, unsigned char *result)
{
- unsigned char result[20];
char name[50];
if (!patchlen)
return;
- git_SHA1_Final(result, c);
memcpy(name, sha1_to_hex(id), 41);
printf("%s %s\n", sha1_to_hex(result), name);
- git_SHA1_Init(c);
}
static int remove_space(char *line)
@@ -56,10 +53,31 @@ static int scan_hunk_header(const char *p, int *p_before, int *p_after)
return 1;
}
-static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct strbuf *line_buf)
+static void flush_one_hunk(unsigned char *result, git_SHA_CTX *ctx)
+{
+ unsigned char hash[20];
+ unsigned short carry = 0;
+ int i;
+
+ git_SHA1_Final(hash, ctx);
+ git_SHA1_Init(ctx);
+ /* 20-byte sum, with carry */
+ for (i = 0; i < 20; ++i) {
+ carry += result[i] + hash[i];
+ result[i] = carry;
+ carry >>= 8;
+ }
+}
+
+static int get_one_patchid(unsigned char *next_sha1, unsigned char *result,
+ struct strbuf *line_buf, int stable)
{
int patchlen = 0, found_next = 0;
int before = -1, after = -1;
+ git_SHA_CTX ctx;
+
+ git_SHA1_Init(&ctx);
+ hashclr(result);
while (strbuf_getwholeline(line_buf, stdin, '\n') != EOF) {
char *line = line_buf->buf;
@@ -107,6 +125,8 @@ static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct st
break;
/* Else we're parsing another header. */
+ if (stable)
+ flush_one_hunk(result, &ctx);
before = after = -1;
}
@@ -119,39 +139,63 @@ static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct st
/* Compute the sha without whitespace */
len = remove_space(line);
patchlen += len;
- git_SHA1_Update(ctx, line, len);
+ git_SHA1_Update(&ctx, line, len);
}
if (!found_next)
hashclr(next_sha1);
+ flush_one_hunk(result, &ctx);
+
return patchlen;
}
-static void generate_id_list(void)
+static void generate_id_list(int stable)
{
- unsigned char sha1[20], n[20];
- git_SHA_CTX ctx;
+ unsigned char sha1[20], n[20], result[20];
int patchlen;
struct strbuf line_buf = STRBUF_INIT;
- git_SHA1_Init(&ctx);
hashclr(sha1);
while (!feof(stdin)) {
- patchlen = get_one_patchid(n, &ctx, &line_buf);
- flush_current_id(patchlen, sha1, &ctx);
+ patchlen = get_one_patchid(n, result, &line_buf, stable);
+ flush_current_id(patchlen, sha1, result);
hashcpy(sha1, n);
}
strbuf_release(&line_buf);
}
-static const char patch_id_usage[] = "git patch-id < patch";
+static const char patch_id_usage[] = "git patch-id [--stable | --unstable] < patch";
+
+static int git_patch_id_config(const char *var, const char *value, void *cb)
+{
+ int *stable = cb;
+
+ if (!strcmp(var, "patchid.stable")) {
+ *stable = git_config_bool(var, value);
+ return 0;
+ }
+
+ return git_default_config(var, value, cb);
+}
int cmd_patch_id(int argc, const char **argv, const char *prefix)
{
- if (argc != 1)
+ int stable = -1;
+
+ git_config(git_patch_id_config, &stable);
+
+ /* If nothing is set, default to unstable. */
+ if (stable < 0)
+ stable = 0;
+
+ if (argc == 2 && !strcmp(argv[1], "--stable"))
+ stable = 1;
+ else if (argc == 2 && !strcmp(argv[1], "--unstable"))
+ stable = 0;
+ else if (argc != 1)
usage(patch_id_usage);
- generate_id_list();
+ generate_id_list(stable);
return 0;
}
diff --git a/builtin/push.c b/builtin/push.c
index f8dfea4..f50e3d5 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -127,11 +127,10 @@ static NORETURN int die_push_simple(struct branch *branch, struct remote *remote
* them the big ugly fully qualified ref.
*/
const char *advice_maybe = "";
- const char *short_upstream =
- skip_prefix(branch->merge[0]->src, "refs/heads/");
+ const char *short_upstream = branch->merge[0]->src;
+
+ skip_prefix(short_upstream, "refs/heads/", &short_upstream);
- if (!short_upstream)
- short_upstream = branch->merge[0]->src;
/*
* Don't show advice for people who explicitly set
* push.default.
diff --git a/builtin/read-tree.c b/builtin/read-tree.c
index 0d7ef84..e7e1c33 100644
--- a/builtin/read-tree.c
+++ b/builtin/read-tree.c
@@ -99,7 +99,7 @@ static struct lock_file lock_file;
int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
{
- int i, newfd, stage = 0;
+ int i, stage = 0;
unsigned char sha1[20];
struct tree_desc t[MAX_UNPACK_TREES];
struct unpack_trees_options opts;
@@ -149,12 +149,21 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
argc = parse_options(argc, argv, unused_prefix, read_tree_options,
read_tree_usage, 0);
- newfd = hold_locked_index(&lock_file, 1);
+ hold_locked_index(&lock_file, 1);
prefix_set = opts.prefix ? 1 : 0;
if (1 < opts.merge + opts.reset + prefix_set)
die("Which one? -m, --reset, or --prefix?");
+ /*
+ * NEEDSWORK
+ *
+ * The old index should be read anyway even if we're going to
+ * destroy all index entries because we still need to preserve
+ * certain information such as index version or split-index
+ * mode.
+ */
+
if (opts.reset || opts.merge || opts.prefix) {
if (read_cache_unmerged() && (opts.prefix || opts.merge))
die("You need to resolve your current index first");
@@ -231,10 +240,9 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
* what came from the tree.
*/
if (nr_trees == 1 && !opts.prefix)
- prime_cache_tree(&active_cache_tree, trees[0]);
+ prime_cache_tree(&the_index, trees[0]);
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die("unable to write new index file");
return 0;
}
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index c323081..18458e8 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -614,12 +614,9 @@ static void run_update_post_hook(struct command *commands)
argv[0] = hook;
for (argc = 1, cmd = commands; cmd; cmd = cmd->next) {
- char *p;
if (cmd->error_string || cmd->did_not_exist)
continue;
- p = xmalloc(strlen(cmd->ref_name) + 1);
- strcpy(p, cmd->ref_name);
- argv[argc] = p;
+ argv[argc] = xstrdup(cmd->ref_name);
argc++;
}
argv[argc] = NULL;
diff --git a/builtin/reflog.c b/builtin/reflog.c
index c12a9784..e8a8fb1 100644
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -369,7 +369,7 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
if (!lock)
return error("cannot lock ref '%s'", ref);
log_file = git_pathdup("logs/%s", ref);
- if (!file_exists(log_file))
+ if (!reflog_exists(ref))
goto finish;
if (!cmd->dry_run) {
newlog_path = git_pathdup("logs/%s.lock", ref);
diff --git a/builtin/remote.c b/builtin/remote.c
index 0a6f3ef..8e1dc39 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -250,9 +250,7 @@ static struct string_list branch_list;
static const char *abbrev_ref(const char *name, const char *prefix)
{
- const char *abbrev = skip_prefix(name, prefix);
- if (abbrev)
- return abbrev;
+ skip_prefix(name, prefix, &name);
return name;
}
#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
@@ -283,7 +281,7 @@ static int config_read_branches(const char *key, const char *value, void *cb)
item = string_list_insert(&branch_list, name);
if (!item->util)
- item->util = xcalloc(sizeof(struct branch_info), 1);
+ item->util = xcalloc(1, sizeof(struct branch_info));
info = item->util;
if (type == REMOTE) {
if (info->remote_name)
@@ -399,7 +397,7 @@ static int get_push_ref_states(const struct ref *remote_refs,
item = string_list_append(&states->push,
abbrev_branch(ref->peer_ref->name));
- item->util = xcalloc(sizeof(struct push_info), 1);
+ item->util = xcalloc(1, sizeof(struct push_info));
info = item->util;
info->forced = ref->force;
info->dest = xstrdup(abbrev_branch(ref->name));
@@ -434,7 +432,7 @@ static int get_push_ref_states_noquery(struct ref_states *states)
states->push.strdup_strings = 1;
if (!remote->push_refspec_nr) {
item = string_list_append(&states->push, _("(matching)"));
- info = item->util = xcalloc(sizeof(struct push_info), 1);
+ info = item->util = xcalloc(1, sizeof(struct push_info));
info->status = PUSH_STATUS_NOTQUERIED;
info->dest = xstrdup(item->string);
}
@@ -447,7 +445,7 @@ static int get_push_ref_states_noquery(struct ref_states *states)
else
item = string_list_append(&states->push, _("(delete)"));
- info = item->util = xcalloc(sizeof(struct push_info), 1);
+ info = item->util = xcalloc(1, sizeof(struct push_info));
info->forced = spec->force;
info->status = PUSH_STATUS_NOTQUERIED;
info->dest = xstrdup(spec->dst ? spec->dst : item->string);
diff --git a/builtin/repack.c b/builtin/repack.c
index 52f22ca..a77e743 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -10,6 +10,7 @@
static int delta_base_offset = 1;
static int pack_kept_objects = -1;
+static int write_bitmaps;
static char *packdir, *packtmp;
static const char *const git_repack_usage[] = {
@@ -27,6 +28,11 @@ static int repack_config(const char *var, const char *value, void *cb)
pack_kept_objects = git_config_bool(var, value);
return 0;
}
+ if (!strcmp(var, "repack.writebitmaps") ||
+ !strcmp(var, "pack.writebitmaps")) {
+ write_bitmaps = git_config_bool(var, value);
+ return 0;
+ }
return git_default_config(var, value, cb);
}
@@ -148,7 +154,6 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
int no_update_server_info = 0;
int quiet = 0;
int local = 0;
- int write_bitmap = -1;
struct option builtin_repack_options[] = {
OPT_BIT('a', NULL, &pack_everything,
@@ -167,7 +172,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
OPT__QUIET(&quiet, N_("be quiet")),
OPT_BOOL('l', "local", &local,
N_("pass --local to git-pack-objects")),
- OPT_BOOL('b', "write-bitmap-index", &write_bitmap,
+ OPT_BOOL('b', "write-bitmap-index", &write_bitmaps,
N_("write bitmap index")),
OPT_STRING(0, "unpack-unreachable", &unpack_unreachable, N_("approxidate"),
N_("with -A, do not loosen objects older than this")),
@@ -190,7 +195,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
git_repack_usage, 0);
if (pack_kept_objects < 0)
- pack_kept_objects = write_bitmap;
+ pack_kept_objects = write_bitmaps;
packdir = mkpathdup("%s/pack", get_object_directory());
packtmp = mkpathdup("%s/.tmp-%d-pack", packdir, (int)getpid());
@@ -216,9 +221,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
argv_array_pushf(&cmd_args, "--no-reuse-delta");
if (no_reuse_object)
argv_array_pushf(&cmd_args, "--no-reuse-object");
- if (write_bitmap >= 0)
- argv_array_pushf(&cmd_args, "--%swrite-bitmap-index",
- write_bitmap ? "" : "no-");
+ if (write_bitmaps)
+ argv_array_push(&cmd_args, "--write-bitmap-index");
if (pack_everything & ALL_INTO_ONE) {
get_non_kept_pack_filenames(&existing_packs);
diff --git a/builtin/replace.c b/builtin/replace.c
index b62420a..d1ea2c2 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -12,18 +12,20 @@
#include "builtin.h"
#include "refs.h"
#include "parse-options.h"
+#include "run-command.h"
static const char * const git_replace_usage[] = {
N_("git replace [-f] <object> <replacement>"),
+ N_("git replace [-f] --edit <object>"),
N_("git replace -d <object>..."),
N_("git replace [--format=<format>] [-l [<pattern>]]"),
NULL
};
enum replace_format {
- REPLACE_FORMAT_SHORT,
- REPLACE_FORMAT_MEDIUM,
- REPLACE_FORMAT_LONG
+ REPLACE_FORMAT_SHORT,
+ REPLACE_FORMAT_MEDIUM,
+ REPLACE_FORMAT_LONG
};
struct show_data {
@@ -123,26 +125,36 @@ static int delete_replace_ref(const char *name, const char *ref,
return 0;
}
-static int replace_object(const char *object_ref, const char *replace_ref,
- int force)
+static void check_ref_valid(unsigned char object[20],
+ unsigned char prev[20],
+ char *ref,
+ int ref_size,
+ int force)
{
- unsigned char object[20], prev[20], repl[20];
- enum object_type obj_type, repl_type;
- char ref[PATH_MAX];
- struct ref_lock *lock;
-
- if (get_sha1(object_ref, object))
- die("Failed to resolve '%s' as a valid ref.", object_ref);
- if (get_sha1(replace_ref, repl))
- die("Failed to resolve '%s' as a valid ref.", replace_ref);
-
- if (snprintf(ref, sizeof(ref),
+ if (snprintf(ref, ref_size,
"refs/replace/%s",
- sha1_to_hex(object)) > sizeof(ref) - 1)
+ sha1_to_hex(object)) > ref_size - 1)
die("replace ref name too long: %.*s...", 50, ref);
if (check_refname_format(ref, 0))
die("'%s' is not a valid ref name.", ref);
+ if (read_ref(ref, prev))
+ hashclr(prev);
+ else if (!force)
+ die("replace ref '%s' already exists", ref);
+}
+
+static int replace_object_sha1(const char *object_ref,
+ unsigned char object[20],
+ const char *replace_ref,
+ unsigned char repl[20],
+ int force)
+{
+ unsigned char prev[20];
+ enum object_type obj_type, repl_type;
+ char ref[PATH_MAX];
+ struct ref_lock *lock;
+
obj_type = sha1_object_info(object, NULL);
repl_type = sha1_object_info(repl, NULL);
if (!force && obj_type != repl_type)
@@ -152,10 +164,7 @@ static int replace_object(const char *object_ref, const char *replace_ref,
object_ref, typename(obj_type),
replace_ref, typename(repl_type));
- if (read_ref(ref, prev))
- hashclr(prev);
- else if (!force)
- die("replace ref '%s' already exists", ref);
+ check_ref_valid(object, prev, ref, sizeof(ref), force);
lock = lock_any_ref_for_update(ref, prev, 0, NULL);
if (!lock)
@@ -166,14 +175,148 @@ static int replace_object(const char *object_ref, const char *replace_ref,
return 0;
}
+static int replace_object(const char *object_ref, const char *replace_ref, int force)
+{
+ unsigned char object[20], repl[20];
+
+ if (get_sha1(object_ref, object))
+ die("Failed to resolve '%s' as a valid ref.", object_ref);
+ if (get_sha1(replace_ref, repl))
+ die("Failed to resolve '%s' as a valid ref.", replace_ref);
+
+ return replace_object_sha1(object_ref, object, replace_ref, repl, force);
+}
+
+/*
+ * Write the contents of the object named by "sha1" to the file "filename".
+ * If "raw" is true, then the object's raw contents are printed according to
+ * "type". Otherwise, we pretty-print the contents for human editing.
+ */
+static void export_object(const unsigned char *sha1, enum object_type type,
+ int raw, const char *filename)
+{
+ struct child_process cmd = { NULL };
+ int fd;
+
+ fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+ if (fd < 0)
+ die_errno("unable to open %s for writing", filename);
+
+ argv_array_push(&cmd.args, "--no-replace-objects");
+ argv_array_push(&cmd.args, "cat-file");
+ if (raw)
+ argv_array_push(&cmd.args, typename(type));
+ else
+ argv_array_push(&cmd.args, "-p");
+ argv_array_push(&cmd.args, sha1_to_hex(sha1));
+ cmd.git_cmd = 1;
+ cmd.out = fd;
+
+ if (run_command(&cmd))
+ die("cat-file reported failure");
+}
+
+/*
+ * Read a previously-exported (and possibly edited) object back from "filename",
+ * interpreting it as "type", and writing the result to the object database.
+ * The sha1 of the written object is returned via sha1.
+ */
+static void import_object(unsigned char *sha1, enum object_type type,
+ int raw, const char *filename)
+{
+ int fd;
+
+ fd = open(filename, O_RDONLY);
+ if (fd < 0)
+ die_errno("unable to open %s for reading", filename);
+
+ if (!raw && type == OBJ_TREE) {
+ const char *argv[] = { "mktree", NULL };
+ struct child_process cmd = { argv };
+ struct strbuf result = STRBUF_INIT;
+
+ cmd.argv = argv;
+ cmd.git_cmd = 1;
+ cmd.in = fd;
+ cmd.out = -1;
+
+ if (start_command(&cmd))
+ die("unable to spawn mktree");
+
+ if (strbuf_read(&result, cmd.out, 41) < 0)
+ die_errno("unable to read from mktree");
+ close(cmd.out);
+
+ if (finish_command(&cmd))
+ die("mktree reported failure");
+ if (get_sha1_hex(result.buf, sha1) < 0)
+ die("mktree did not return an object name");
+
+ strbuf_release(&result);
+ } else {
+ struct stat st;
+ int flags = HASH_FORMAT_CHECK | HASH_WRITE_OBJECT;
+
+ if (fstat(fd, &st) < 0)
+ die_errno("unable to fstat %s", filename);
+ if (index_fd(sha1, fd, &st, type, NULL, flags) < 0)
+ die("unable to write object to database");
+ /* index_fd close()s fd for us */
+ }
+
+ /*
+ * No need to close(fd) here; both run-command and index-fd
+ * will have done it for us.
+ */
+}
+
+static int edit_and_replace(const char *object_ref, int force, int raw)
+{
+ char *tmpfile = git_pathdup("REPLACE_EDITOBJ");
+ enum object_type type;
+ unsigned char old[20], new[20], prev[20];
+ char ref[PATH_MAX];
+
+ if (get_sha1(object_ref, old) < 0)
+ die("Not a valid object name: '%s'", object_ref);
+
+ type = sha1_object_info(old, NULL);
+ if (type < 0)
+ die("unable to get object type for %s", sha1_to_hex(old));
+
+ check_ref_valid(old, prev, ref, sizeof(ref), force);
+
+ export_object(old, type, raw, tmpfile);
+ if (launch_editor(tmpfile, NULL, NULL) < 0)
+ die("editing object file failed");
+ import_object(new, type, raw, tmpfile);
+
+ free(tmpfile);
+
+ if (!hashcmp(old, new))
+ return error("new object is the same as the old one: '%s'", sha1_to_hex(old));
+
+ return replace_object_sha1(object_ref, old, "replacement", new, force);
+}
+
int cmd_replace(int argc, const char **argv, const char *prefix)
{
- int list = 0, delete = 0, force = 0;
+ int force = 0;
+ int raw = 0;
const char *format = NULL;
+ enum {
+ MODE_UNSPECIFIED = 0,
+ MODE_LIST,
+ MODE_DELETE,
+ MODE_EDIT,
+ MODE_REPLACE
+ } cmdmode = MODE_UNSPECIFIED;
struct option options[] = {
- OPT_BOOL('l', "list", &list, N_("list replace refs")),
- OPT_BOOL('d', "delete", &delete, N_("delete replace refs")),
+ OPT_CMDMODE('l', "list", &cmdmode, N_("list replace refs"), MODE_LIST),
+ OPT_CMDMODE('d', "delete", &cmdmode, N_("delete replace refs"), MODE_DELETE),
+ OPT_CMDMODE('e', "edit", &cmdmode, N_("edit existing object"), MODE_EDIT),
OPT_BOOL('f', "force", &force, N_("replace the ref if it exists")),
+ OPT_BOOL(0, "raw", &raw, N_("do not pretty-print contents for --edit")),
OPT_STRING(0, "format", &format, N_("format"), N_("use this format")),
OPT_END()
};
@@ -182,44 +325,47 @@ int cmd_replace(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0);
- if (list && delete)
- usage_msg_opt("-l and -d cannot be used together",
+ if (!cmdmode)
+ cmdmode = argc ? MODE_REPLACE : MODE_LIST;
+
+ if (format && cmdmode != MODE_LIST)
+ usage_msg_opt("--format cannot be used when not listing",
git_replace_usage, options);
- if (format && delete)
- usage_msg_opt("--format and -d cannot be used together",
+ if (force && cmdmode != MODE_REPLACE && cmdmode != MODE_EDIT)
+ usage_msg_opt("-f only makes sense when writing a replacement",
git_replace_usage, options);
- if (force && (list || delete))
- usage_msg_opt("-f cannot be used with -d or -l",
+ if (raw && cmdmode != MODE_EDIT)
+ usage_msg_opt("--raw only makes sense with --edit",
git_replace_usage, options);
- /* Delete refs */
- if (delete) {
+ switch (cmdmode) {
+ case MODE_DELETE:
if (argc < 1)
usage_msg_opt("-d needs at least one argument",
git_replace_usage, options);
return for_each_replace_name(argv, delete_replace_ref);
- }
- /* Replace object */
- if (!list && argc) {
+ case MODE_REPLACE:
if (argc != 2)
usage_msg_opt("bad number of arguments",
git_replace_usage, options);
- if (format)
- usage_msg_opt("--format cannot be used when not listing",
- git_replace_usage, options);
return replace_object(argv[0], argv[1], force);
- }
- /* List refs, even if "list" is not set */
- if (argc > 1)
- usage_msg_opt("only one pattern can be given with -l",
- git_replace_usage, options);
- if (force)
- usage_msg_opt("-f needs some arguments",
- git_replace_usage, options);
+ case MODE_EDIT:
+ if (argc != 1)
+ usage_msg_opt("-e needs exactly one argument",
+ git_replace_usage, options);
+ return edit_and_replace(argv[0], force, raw);
+
+ case MODE_LIST:
+ if (argc > 1)
+ usage_msg_opt("only one pattern can be given with -l",
+ git_replace_usage, options);
+ return list_replace_refs(argv[0], format);
- return list_replace_refs(argv[0], format);
+ default:
+ die("BUG: invalid cmdmode %d", (int)cmdmode);
+ }
}
diff --git a/builtin/reset.c b/builtin/reset.c
index f4e0875..855d478 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -84,7 +84,7 @@ static int reset_index(const unsigned char *sha1, int reset_type, int quiet)
if (reset_type == MIXED || reset_type == HARD) {
tree = parse_tree_indirect(sha1);
- prime_cache_tree(&active_cache_tree, tree);
+ prime_cache_tree(&the_index, tree);
}
return 0;
@@ -93,7 +93,7 @@ static int reset_index(const unsigned char *sha1, int reset_type, int quiet)
static void print_new_head_line(struct commit *commit)
{
const char *hex, *body;
- char *msg;
+ const char *msg;
hex = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV);
printf(_("HEAD is now at %s"), hex);
@@ -109,7 +109,7 @@ static void print_new_head_line(struct commit *commit)
}
else
printf("\n");
- logmsg_free(msg, commit);
+ unuse_commit_buffer(commit, msg);
}
static void update_index_from_diff(struct diff_queue_struct *q,
@@ -252,11 +252,13 @@ static int reset_refs(const char *rev, const unsigned char *sha1)
if (!get_sha1("HEAD", sha1_orig)) {
orig = sha1_orig;
set_reflog_message(&msg, "updating ORIG_HEAD", NULL);
- update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, MSG_ON_ERR);
+ update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0,
+ UPDATE_REFS_MSG_ON_ERR);
} else if (old_orig)
delete_ref("ORIG_HEAD", old_orig, 0);
set_reflog_message(&msg, "updating HEAD", rev);
- update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0, MSG_ON_ERR);
+ update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0,
+ UPDATE_REFS_MSG_ON_ERR);
strbuf_release(&msg);
return update_ref_status;
}
@@ -351,7 +353,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
if (reset_type != SOFT) {
struct lock_file *lock = xcalloc(1, sizeof(*lock));
- int newfd = hold_locked_index(lock, 1);
+ hold_locked_index(lock, 1);
if (reset_type == MIXED) {
int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN;
if (read_from_tree(&pathspec, sha1, intent_to_add))
@@ -367,8 +369,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
die(_("Could not reset index file to revision '%s'."), rev);
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(lock))
+ if (write_locked_index(&the_index, lock, COMMIT_LOCK))
die(_("Could not write new index file."));
}
diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index 9f92905..ff84a82 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -106,7 +106,7 @@ static void show_commit(struct commit *commit, void *data)
else
putchar('\n');
- if (revs->verbose_header && commit->buffer) {
+ if (revs->verbose_header && get_cached_commit_buffer(commit, NULL)) {
struct strbuf buf = STRBUF_INIT;
struct pretty_print_context ctx = {0};
ctx.abbrev = revs->abbrev;
@@ -173,8 +173,7 @@ static void finish_commit(struct commit *commit, void *data)
free_commit_list(commit->parents);
commit->parents = NULL;
}
- free(commit->buffer);
- commit->buffer = NULL;
+ free_commit_buffer(commit);
}
static void finish_object(struct object *obj,
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 1a6122d..8102aaa 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -11,6 +11,7 @@
#include "parse-options.h"
#include "diff.h"
#include "revision.h"
+#include "split-index.h"
#define DO_REVS 1
#define DO_NOREV 2
@@ -775,6 +776,15 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
: "false");
continue;
}
+ if (!strcmp(arg, "--shared-index-path")) {
+ if (read_cache() < 0)
+ die(_("Could not read the index"));
+ if (the_index.split_index) {
+ const unsigned char *sha1 = the_index.split_index->base_sha1;
+ puts(git_path("sharedindex.%s", sha1_to_hex(sha1)));
+ }
+ continue;
+ }
if (starts_with(arg, "--since=")) {
show_datestring("--max-age=", arg+8);
continue;
diff --git a/builtin/rm.c b/builtin/rm.c
index 960634d..bc6490b 100644
--- a/builtin/rm.c
+++ b/builtin/rm.c
@@ -278,7 +278,7 @@ static struct option builtin_rm_options[] = {
int cmd_rm(int argc, const char **argv, const char *prefix)
{
- int i, newfd;
+ int i;
struct pathspec pathspec;
char *seen;
@@ -293,7 +293,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
if (!index_only)
setup_work_tree();
- newfd = hold_locked_index(&lock_file, 1);
+ hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die(_("index file corrupt"));
@@ -427,8 +427,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
}
if (active_cache_changed) {
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(&lock_file))
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}
diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index d873172..5fd4e4e 100644
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -755,7 +755,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
}
for (i = 0; i < reflog; i++) {
- char *logmsg, *m;
+ char *logmsg;
const char *msg;
unsigned long timestamp;
int tz;
@@ -770,11 +770,9 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
msg = "(none)";
else
msg++;
- m = xmalloc(strlen(msg) + 200);
- sprintf(m, "(%s) %s",
- show_date(timestamp, tz, 1),
- msg);
- reflog_msg[i] = m;
+ reflog_msg[i] = xstrfmt("(%s) %s",
+ show_date(timestamp, tz, 1),
+ msg);
free(logmsg);
sprintf(nth_desc, "%s@{%d}", *av, base+i);
append_ref(nth_desc, sha1, 1);
diff --git a/builtin/tag.c b/builtin/tag.c
index 6c7c6bd..ef76556 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -80,11 +80,19 @@ static int in_commit_list(const struct commit_list *want, struct commit *c)
return 0;
}
-static int contains_recurse(struct commit *candidate,
+enum contains_result {
+ CONTAINS_UNKNOWN = -1,
+ CONTAINS_NO = 0,
+ CONTAINS_YES = 1
+};
+
+/*
+ * Test whether the candidate or one of its parents is contained in the list.
+ * Do not recurse to find out, though, but return -1 if inconclusive.
+ */
+static enum contains_result contains_test(struct commit *candidate,
const struct commit_list *want)
{
- struct commit_list *p;
-
/* was it previously marked as containing a want commit? */
if (candidate->object.flags & TMP_MARK)
return 1;
@@ -92,26 +100,78 @@ static int contains_recurse(struct commit *candidate,
if (candidate->object.flags & UNINTERESTING)
return 0;
/* or are we it? */
- if (in_commit_list(want, candidate))
+ if (in_commit_list(want, candidate)) {
+ candidate->object.flags |= TMP_MARK;
return 1;
+ }
if (parse_commit(candidate) < 0)
return 0;
- /* Otherwise recurse and mark ourselves for future traversals. */
- for (p = candidate->parents; p; p = p->next) {
- if (contains_recurse(p->item, want)) {
- candidate->object.flags |= TMP_MARK;
- return 1;
- }
- }
- candidate->object.flags |= UNINTERESTING;
- return 0;
+ return -1;
}
-static int contains(struct commit *candidate, const struct commit_list *want)
+/*
+ * Mimicking the real stack, this stack lives on the heap, avoiding stack
+ * overflows.
+ *
+ * At each recursion step, the stack items points to the commits whose
+ * ancestors are to be inspected.
+ */
+struct stack {
+ int nr, alloc;
+ struct stack_entry {
+ struct commit *commit;
+ struct commit_list *parents;
+ } *stack;
+};
+
+static void push_to_stack(struct commit *candidate, struct stack *stack)
+{
+ int index = stack->nr++;
+ ALLOC_GROW(stack->stack, stack->nr, stack->alloc);
+ stack->stack[index].commit = candidate;
+ stack->stack[index].parents = candidate->parents;
+}
+
+static enum contains_result contains(struct commit *candidate,
+ const struct commit_list *want)
{
- return contains_recurse(candidate, want);
+ struct stack stack = { 0, 0, NULL };
+ int result = contains_test(candidate, want);
+
+ if (result != CONTAINS_UNKNOWN)
+ return result;
+
+ push_to_stack(candidate, &stack);
+ while (stack.nr) {
+ struct stack_entry *entry = &stack.stack[stack.nr - 1];
+ struct commit *commit = entry->commit;
+ struct commit_list *parents = entry->parents;
+
+ if (!parents) {
+ commit->object.flags |= UNINTERESTING;
+ stack.nr--;
+ }
+ /*
+ * If we just popped the stack, parents->item has been marked,
+ * therefore contains_test will return a meaningful 0 or 1.
+ */
+ else switch (contains_test(parents->item, want)) {
+ case CONTAINS_YES:
+ commit->object.flags |= TMP_MARK;
+ stack.nr--;
+ break;
+ case CONTAINS_NO:
+ entry->parents = parents->next;
+ break;
+ case CONTAINS_UNKNOWN:
+ push_to_stack(parents->item, &stack);
+ break;
+ }
+ }
+ free(stack.stack);
+ return contains_test(candidate, want);
}
static void show_tag_lines(const unsigned char *sha1, int lines)
@@ -278,11 +338,11 @@ static int do_sign(struct strbuf *buffer)
}
static const char tag_template[] =
- N_("\nWrite a tag message\n"
+ N_("\nWrite a message for tag:\n %s\n"
"Lines starting with '%c' will be ignored.\n");
static const char tag_template_nocleanup[] =
- N_("\nWrite a tag message\n"
+ N_("\nWrite a message for tag:\n %s\n"
"Lines starting with '%c' will be kept; you may remove them"
" yourself if you want to.\n");
@@ -378,9 +438,9 @@ static void create_tag(const unsigned char *object, const char *tag,
struct strbuf buf = STRBUF_INIT;
strbuf_addch(&buf, '\n');
if (opt->cleanup_mode == CLEANUP_ALL)
- strbuf_commented_addf(&buf, _(tag_template), comment_line_char);
+ strbuf_commented_addf(&buf, _(tag_template), tag, comment_line_char);
else
- strbuf_commented_addf(&buf, _(tag_template_nocleanup), comment_line_char);
+ strbuf_commented_addf(&buf, _(tag_template_nocleanup), tag, comment_line_char);
write_or_die(fd, buf.buf, buf.len);
strbuf_release(&buf);
}
diff --git a/builtin/update-index.c b/builtin/update-index.c
index ebea285..e8c7fd4 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -13,6 +13,7 @@
#include "parse-options.h"
#include "pathspec.h"
#include "dir.h"
+#include "split-index.h"
/*
* Default to not allowing changes to the list of files. The
@@ -55,8 +56,9 @@ static int mark_ce_flags(const char *path, int flag, int mark)
active_cache[pos]->ce_flags |= flag;
else
active_cache[pos]->ce_flags &= ~flag;
- cache_tree_invalidate_path(active_cache_tree, path);
- active_cache_changed = 1;
+ active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE;
+ cache_tree_invalidate_path(&the_index, path);
+ active_cache_changed |= CE_ENTRY_CHANGED;
return 0;
}
return -1;
@@ -267,8 +269,9 @@ static void chmod_path(int flip, const char *path)
default:
goto fail;
}
- cache_tree_invalidate_path(active_cache_tree, path);
- active_cache_changed = 1;
+ cache_tree_invalidate_path(&the_index, path);
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ active_cache_changed |= CE_ENTRY_CHANGED;
report("chmod %cx '%s'", flip, path);
return;
fail:
@@ -743,6 +746,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
char set_executable_bit = 0;
struct refresh_params refresh_args = {0, &has_errors};
int lock_error = 0;
+ int split_index = -1;
struct lock_file *lock_file;
struct parse_opt_ctx_t ctx;
int parseopt_state = PARSE_OPT_UNKNOWN;
@@ -825,6 +829,8 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
resolve_undo_clear_callback},
OPT_INTEGER(0, "index-version", &preferred_index_format,
N_("write index in this format")),
+ OPT_BOOL(0, "split-index", &split_index,
+ N_("enable or disable split index")),
OPT_END()
};
@@ -892,7 +898,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
INDEX_FORMAT_LB, INDEX_FORMAT_UB);
if (the_index.version != preferred_index_format)
- active_cache_changed = 1;
+ active_cache_changed |= SOMETHING_CHANGED;
the_index.version = preferred_index_format;
}
@@ -918,14 +924,27 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
strbuf_release(&buf);
}
+ if (split_index > 0) {
+ init_split_index(&the_index);
+ the_index.cache_changed |= SPLIT_INDEX_ORDERED;
+ } else if (!split_index && the_index.split_index) {
+ /*
+ * can't discard_split_index(&the_index); because that
+ * will destroy split_index->base->cache[], which may
+ * be shared with the_index.cache[]. So yeah we're
+ * leaking a bit here.
+ */
+ the_index.split_index = NULL;
+ the_index.cache_changed |= SOMETHING_CHANGED;
+ }
+
if (active_cache_changed) {
if (newfd < 0) {
if (refresh_args.flags & REFRESH_QUIET)
exit(128);
unable_to_lock_index_die(get_index_file(), lock_error);
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_locked_index(lock_file))
+ if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die("Unable to write new index file");
}
diff --git a/builtin/update-ref.c b/builtin/update-ref.c
index 5c208bb..405267f 100644
--- a/builtin/update-ref.c
+++ b/builtin/update-ref.c
@@ -12,238 +12,329 @@ static const char * const git_update_ref_usage[] = {
NULL
};
-static int updates_alloc;
-static int updates_count;
-static const struct ref_update **updates;
+static struct ref_transaction *transaction;
static char line_termination = '\n';
static int update_flags;
-static struct ref_update *update_alloc(void)
-{
- struct ref_update *update;
-
- /* Allocate and zero-init a struct ref_update */
- update = xcalloc(1, sizeof(*update));
- ALLOC_GROW(updates, updates_count + 1, updates_alloc);
- updates[updates_count++] = update;
-
- /* Store and reset accumulated options */
- update->flags = update_flags;
- update_flags = 0;
-
- return update;
-}
-
-static void update_store_ref_name(struct ref_update *update,
- const char *ref_name)
-{
- if (check_refname_format(ref_name, REFNAME_ALLOW_ONELEVEL))
- die("invalid ref format: %s", ref_name);
- update->ref_name = xstrdup(ref_name);
-}
-
-static void update_store_new_sha1(struct ref_update *update,
- const char *newvalue)
-{
- if (*newvalue && get_sha1(newvalue, update->new_sha1))
- die("invalid new value for ref %s: %s",
- update->ref_name, newvalue);
-}
-
-static void update_store_old_sha1(struct ref_update *update,
- const char *oldvalue)
-{
- if (*oldvalue && get_sha1(oldvalue, update->old_sha1))
- die("invalid old value for ref %s: %s",
- update->ref_name, oldvalue);
-
- /* We have an old value if non-empty, or if empty without -z */
- update->have_old = *oldvalue || line_termination;
-}
-
+/*
+ * Parse one whitespace- or NUL-terminated, possibly C-quoted argument
+ * and append the result to arg. Return a pointer to the terminator.
+ * Die if there is an error in how the argument is C-quoted. This
+ * function is only used if not -z.
+ */
static const char *parse_arg(const char *next, struct strbuf *arg)
{
- /* Parse SP-terminated, possibly C-quoted argument */
- if (*next != '"')
+ if (*next == '"') {
+ const char *orig = next;
+
+ if (unquote_c_style(arg, next, &next))
+ die("badly quoted argument: %s", orig);
+ if (*next && !isspace(*next))
+ die("unexpected character after quoted argument: %s", orig);
+ } else {
while (*next && !isspace(*next))
strbuf_addch(arg, *next++);
- else if (unquote_c_style(arg, next, &next))
- die("badly quoted argument: %s", next);
+ }
- /* Return position after the argument */
return next;
}
-static const char *parse_first_arg(const char *next, struct strbuf *arg)
+/*
+ * Parse the reference name immediately after "command SP". If not
+ * -z, then handle C-quoting. Return a pointer to a newly allocated
+ * string containing the name of the reference, or NULL if there was
+ * an error. Update *next to point at the character that terminates
+ * the argument. Die if C-quoting is malformed or the reference name
+ * is invalid.
+ */
+static char *parse_refname(struct strbuf *input, const char **next)
{
- /* Parse argument immediately after "command SP" */
- strbuf_reset(arg);
+ struct strbuf ref = STRBUF_INIT;
+
if (line_termination) {
/* Without -z, use the next argument */
- next = parse_arg(next, arg);
+ *next = parse_arg(*next, &ref);
} else {
- /* With -z, use rest of first NUL-terminated line */
- strbuf_addstr(arg, next);
- next = next + arg->len;
+ /* With -z, use everything up to the next NUL */
+ strbuf_addstr(&ref, *next);
+ *next += ref.len;
}
- return next;
+
+ if (!ref.len) {
+ strbuf_release(&ref);
+ return NULL;
+ }
+
+ if (check_refname_format(ref.buf, REFNAME_ALLOW_ONELEVEL))
+ die("invalid ref format: %s", ref.buf);
+
+ return strbuf_detach(&ref, NULL);
}
-static const char *parse_next_arg(const char *next, struct strbuf *arg)
+/*
+ * The value being parsed is <oldvalue> (as opposed to <newvalue>; the
+ * difference affects which error messages are generated):
+ */
+#define PARSE_SHA1_OLD 0x01
+
+/*
+ * For backwards compatibility, accept an empty string for update's
+ * <newvalue> in binary mode to be equivalent to specifying zeros.
+ */
+#define PARSE_SHA1_ALLOW_EMPTY 0x02
+
+/*
+ * Parse an argument separator followed by the next argument, if any.
+ * If there is an argument, convert it to a SHA-1, write it to sha1,
+ * set *next to point at the character terminating the argument, and
+ * return 0. If there is no argument at all (not even the empty
+ * string), return 1 and leave *next unchanged. If the value is
+ * provided but cannot be converted to a SHA-1, die. flags can
+ * include PARSE_SHA1_OLD and/or PARSE_SHA1_ALLOW_EMPTY.
+ */
+static int parse_next_sha1(struct strbuf *input, const char **next,
+ unsigned char *sha1,
+ const char *command, const char *refname,
+ int flags)
{
- /* Parse next SP-terminated or NUL-terminated argument, if any */
- strbuf_reset(arg);
+ struct strbuf arg = STRBUF_INIT;
+ int ret = 0;
+
+ if (*next == input->buf + input->len)
+ goto eof;
+
if (line_termination) {
/* Without -z, consume SP and use next argument */
- if (!*next)
- return NULL;
- if (*next != ' ')
- die("expected SP but got: %s", next);
- next = parse_arg(next + 1, arg);
+ if (!**next || **next == line_termination)
+ return 1;
+ if (**next != ' ')
+ die("%s %s: expected SP but got: %s",
+ command, refname, *next);
+ (*next)++;
+ *next = parse_arg(*next, &arg);
+ if (arg.len) {
+ if (get_sha1(arg.buf, sha1))
+ goto invalid;
+ } else {
+ /* Without -z, an empty value means all zeros: */
+ hashclr(sha1);
+ }
} else {
/* With -z, read the next NUL-terminated line */
- if (*next)
- die("expected NUL but got: %s", next);
- if (strbuf_getline(arg, stdin, '\0') == EOF)
- return NULL;
- next = arg->buf + arg->len;
+ if (**next)
+ die("%s %s: expected NUL but got: %s",
+ command, refname, *next);
+ (*next)++;
+ if (*next == input->buf + input->len)
+ goto eof;
+ strbuf_addstr(&arg, *next);
+ *next += arg.len;
+
+ if (arg.len) {
+ if (get_sha1(arg.buf, sha1))
+ goto invalid;
+ } else if (flags & PARSE_SHA1_ALLOW_EMPTY) {
+ /* With -z, treat an empty value as all zeros: */
+ warning("%s %s: missing <newvalue>, treating as zero",
+ command, refname);
+ hashclr(sha1);
+ } else {
+ /*
+ * With -z, an empty non-required value means
+ * unspecified:
+ */
+ ret = 1;
+ }
}
- return next;
+
+ strbuf_release(&arg);
+
+ return ret;
+
+ invalid:
+ die(flags & PARSE_SHA1_OLD ?
+ "%s %s: invalid <oldvalue>: %s" :
+ "%s %s: invalid <newvalue>: %s",
+ command, refname, arg.buf);
+
+ eof:
+ die(flags & PARSE_SHA1_OLD ?
+ "%s %s: unexpected end of input when reading <oldvalue>" :
+ "%s %s: unexpected end of input when reading <newvalue>",
+ command, refname);
}
-static void parse_cmd_update(const char *next)
+
+/*
+ * The following five parse_cmd_*() functions parse the corresponding
+ * command. In each case, next points at the character following the
+ * command name and the following space. They each return a pointer
+ * to the character terminating the command, and die with an
+ * explanatory message if there are any parsing problems. All of
+ * these functions handle either text or binary format input,
+ * depending on how line_termination is set.
+ */
+
+static const char *parse_cmd_update(struct strbuf *input, const char *next)
{
- struct strbuf ref = STRBUF_INIT;
- struct strbuf newvalue = STRBUF_INIT;
- struct strbuf oldvalue = STRBUF_INIT;
- struct ref_update *update;
+ char *refname;
+ unsigned char new_sha1[20];
+ unsigned char old_sha1[20];
+ int have_old;
- update = update_alloc();
+ refname = parse_refname(input, &next);
+ if (!refname)
+ die("update: missing <ref>");
- if ((next = parse_first_arg(next, &ref)) != NULL && ref.buf[0])
- update_store_ref_name(update, ref.buf);
- else
- die("update line missing <ref>");
+ if (parse_next_sha1(input, &next, new_sha1, "update", refname,
+ PARSE_SHA1_ALLOW_EMPTY))
+ die("update %s: missing <newvalue>", refname);
- if ((next = parse_next_arg(next, &newvalue)) != NULL)
- update_store_new_sha1(update, newvalue.buf);
- else
- die("update %s missing <newvalue>", ref.buf);
+ have_old = !parse_next_sha1(input, &next, old_sha1, "update", refname,
+ PARSE_SHA1_OLD);
- if ((next = parse_next_arg(next, &oldvalue)) != NULL)
- update_store_old_sha1(update, oldvalue.buf);
- else if(!line_termination)
- die("update %s missing [<oldvalue>] NUL", ref.buf);
+ if (*next != line_termination)
+ die("update %s: extra input: %s", refname, next);
- if (next && *next)
- die("update %s has extra input: %s", ref.buf, next);
+ ref_transaction_update(transaction, refname, new_sha1, old_sha1,
+ update_flags, have_old);
+
+ update_flags = 0;
+ free(refname);
+
+ return next;
}
-static void parse_cmd_create(const char *next)
+static const char *parse_cmd_create(struct strbuf *input, const char *next)
{
- struct strbuf ref = STRBUF_INIT;
- struct strbuf newvalue = STRBUF_INIT;
- struct ref_update *update;
+ char *refname;
+ unsigned char new_sha1[20];
- update = update_alloc();
- update->have_old = 1;
+ refname = parse_refname(input, &next);
+ if (!refname)
+ die("create: missing <ref>");
- if ((next = parse_first_arg(next, &ref)) != NULL && ref.buf[0])
- update_store_ref_name(update, ref.buf);
- else
- die("create line missing <ref>");
+ if (parse_next_sha1(input, &next, new_sha1, "create", refname, 0))
+ die("create %s: missing <newvalue>", refname);
- if ((next = parse_next_arg(next, &newvalue)) != NULL)
- update_store_new_sha1(update, newvalue.buf);
- else
- die("create %s missing <newvalue>", ref.buf);
- if (is_null_sha1(update->new_sha1))
- die("create %s given zero new value", ref.buf);
+ if (is_null_sha1(new_sha1))
+ die("create %s: zero <newvalue>", refname);
+
+ if (*next != line_termination)
+ die("create %s: extra input: %s", refname, next);
- if (next && *next)
- die("create %s has extra input: %s", ref.buf, next);
+ ref_transaction_create(transaction, refname, new_sha1, update_flags);
+
+ update_flags = 0;
+ free(refname);
+
+ return next;
}
-static void parse_cmd_delete(const char *next)
+static const char *parse_cmd_delete(struct strbuf *input, const char *next)
{
- struct strbuf ref = STRBUF_INIT;
- struct strbuf oldvalue = STRBUF_INIT;
- struct ref_update *update;
+ char *refname;
+ unsigned char old_sha1[20];
+ int have_old;
- update = update_alloc();
+ refname = parse_refname(input, &next);
+ if (!refname)
+ die("delete: missing <ref>");
- if ((next = parse_first_arg(next, &ref)) != NULL && ref.buf[0])
- update_store_ref_name(update, ref.buf);
- else
- die("delete line missing <ref>");
+ if (parse_next_sha1(input, &next, old_sha1, "delete", refname,
+ PARSE_SHA1_OLD)) {
+ have_old = 0;
+ } else {
+ if (is_null_sha1(old_sha1))
+ die("delete %s: zero <oldvalue>", refname);
+ have_old = 1;
+ }
+
+ if (*next != line_termination)
+ die("delete %s: extra input: %s", refname, next);
- if ((next = parse_next_arg(next, &oldvalue)) != NULL)
- update_store_old_sha1(update, oldvalue.buf);
- else if(!line_termination)
- die("delete %s missing [<oldvalue>] NUL", ref.buf);
- if (update->have_old && is_null_sha1(update->old_sha1))
- die("delete %s given zero old value", ref.buf);
+ ref_transaction_delete(transaction, refname, old_sha1,
+ update_flags, have_old);
- if (next && *next)
- die("delete %s has extra input: %s", ref.buf, next);
+ update_flags = 0;
+ free(refname);
+
+ return next;
}
-static void parse_cmd_verify(const char *next)
+static const char *parse_cmd_verify(struct strbuf *input, const char *next)
{
- struct strbuf ref = STRBUF_INIT;
- struct strbuf value = STRBUF_INIT;
- struct ref_update *update;
+ char *refname;
+ unsigned char new_sha1[20];
+ unsigned char old_sha1[20];
+ int have_old;
+
+ refname = parse_refname(input, &next);
+ if (!refname)
+ die("verify: missing <ref>");
+
+ if (parse_next_sha1(input, &next, old_sha1, "verify", refname,
+ PARSE_SHA1_OLD)) {
+ hashclr(new_sha1);
+ have_old = 0;
+ } else {
+ hashcpy(new_sha1, old_sha1);
+ have_old = 1;
+ }
- update = update_alloc();
+ if (*next != line_termination)
+ die("verify %s: extra input: %s", refname, next);
- if ((next = parse_first_arg(next, &ref)) != NULL && ref.buf[0])
- update_store_ref_name(update, ref.buf);
- else
- die("verify line missing <ref>");
+ ref_transaction_update(transaction, refname, new_sha1, old_sha1,
+ update_flags, have_old);
- if ((next = parse_next_arg(next, &value)) != NULL) {
- update_store_old_sha1(update, value.buf);
- update_store_new_sha1(update, value.buf);
- } else if(!line_termination)
- die("verify %s missing [<oldvalue>] NUL", ref.buf);
+ update_flags = 0;
+ free(refname);
- if (next && *next)
- die("verify %s has extra input: %s", ref.buf, next);
+ return next;
}
-static void parse_cmd_option(const char *next)
+static const char *parse_cmd_option(struct strbuf *input, const char *next)
{
- if (!strcmp(next, "no-deref"))
+ if (!strncmp(next, "no-deref", 8) && next[8] == line_termination)
update_flags |= REF_NODEREF;
else
die("option unknown: %s", next);
+ return next + 8;
}
static void update_refs_stdin(void)
{
- struct strbuf cmd = STRBUF_INIT;
+ struct strbuf input = STRBUF_INIT;
+ const char *next;
+ if (strbuf_read(&input, 0, 1000) < 0)
+ die_errno("could not read from stdin");
+ next = input.buf;
/* Read each line dispatch its command */
- while (strbuf_getline(&cmd, stdin, line_termination) != EOF)
- if (!cmd.buf[0])
+ while (next < input.buf + input.len) {
+ if (*next == line_termination)
die("empty command in input");
- else if (isspace(*cmd.buf))
- die("whitespace before command: %s", cmd.buf);
- else if (starts_with(cmd.buf, "update "))
- parse_cmd_update(cmd.buf + 7);
- else if (starts_with(cmd.buf, "create "))
- parse_cmd_create(cmd.buf + 7);
- else if (starts_with(cmd.buf, "delete "))
- parse_cmd_delete(cmd.buf + 7);
- else if (starts_with(cmd.buf, "verify "))
- parse_cmd_verify(cmd.buf + 7);
- else if (starts_with(cmd.buf, "option "))
- parse_cmd_option(cmd.buf + 7);
+ else if (isspace(*next))
+ die("whitespace before command: %s", next);
+ else if (starts_with(next, "update "))
+ next = parse_cmd_update(&input, next + 7);
+ else if (starts_with(next, "create "))
+ next = parse_cmd_create(&input, next + 7);
+ else if (starts_with(next, "delete "))
+ next = parse_cmd_delete(&input, next + 7);
+ else if (starts_with(next, "verify "))
+ next = parse_cmd_verify(&input, next + 7);
+ else if (starts_with(next, "option "))
+ next = parse_cmd_option(&input, next + 7);
else
- die("unknown command: %s", cmd.buf);
+ die("unknown command: %s", next);
+
+ next++;
+ }
- strbuf_release(&cmd);
+ strbuf_release(&input);
}
int cmd_update_ref(int argc, const char **argv, const char *prefix)
@@ -268,12 +359,17 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
die("Refusing to perform update with empty message.");
if (read_stdin) {
+ int ret;
+ transaction = ref_transaction_begin();
+
if (delete || no_deref || argc > 0)
usage_with_options(git_update_ref_usage, options);
if (end_null)
line_termination = '\0';
update_refs_stdin();
- return update_refs(msg, updates, updates_count, DIE_ON_ERR);
+ ret = ref_transaction_commit(transaction, msg,
+ UPDATE_REFS_DIE_ON_ERR);
+ return ret;
}
if (end_null)
@@ -305,5 +401,5 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
return delete_ref(refname, oldval ? oldsha1 : NULL, flags);
else
return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,
- flags, DIE_ON_ERR);
+ flags, UPDATE_REFS_DIE_ON_ERR);
}
diff --git a/builtin/verify-commit.c b/builtin/verify-commit.c
new file mode 100644
index 0000000..b0f8504
--- /dev/null
+++ b/builtin/verify-commit.c
@@ -0,0 +1,93 @@
+/*
+ * Builtin "git commit-commit"
+ *
+ * Copyright (c) 2014 Michael J Gruber <git@drmicha.warpmail.net>
+ *
+ * Based on git-verify-tag
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "commit.h"
+#include "run-command.h"
+#include <signal.h>
+#include "parse-options.h"
+#include "gpg-interface.h"
+
+static const char * const verify_commit_usage[] = {
+ N_("git verify-commit [-v|--verbose] <commit>..."),
+ NULL
+};
+
+static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned long size, int verbose)
+{
+ struct signature_check signature_check;
+
+ memset(&signature_check, 0, sizeof(signature_check));
+
+ check_commit_signature(lookup_commit(sha1), &signature_check);
+
+ if (verbose && signature_check.payload)
+ fputs(signature_check.payload, stdout);
+
+ if (signature_check.gpg_output)
+ fputs(signature_check.gpg_output, stderr);
+
+ signature_check_clear(&signature_check);
+ return signature_check.result != 'G';
+}
+
+static int verify_commit(const char *name, int verbose)
+{
+ enum object_type type;
+ unsigned char sha1[20];
+ char *buf;
+ unsigned long size;
+ int ret;
+
+ if (get_sha1(name, sha1))
+ return error("commit '%s' not found.", name);
+
+ buf = read_sha1_file(sha1, &type, &size);
+ if (!buf)
+ return error("%s: unable to read file.", name);
+ if (type != OBJ_COMMIT)
+ return error("%s: cannot verify a non-commit object of type %s.",
+ name, typename(type));
+
+ ret = run_gpg_verify(sha1, buf, size, verbose);
+
+ free(buf);
+ return ret;
+}
+
+static int git_verify_commit_config(const char *var, const char *value, void *cb)
+{
+ int status = git_gpg_config(var, value, cb);
+ if (status)
+ return status;
+ return git_default_config(var, value, cb);
+}
+
+int cmd_verify_commit(int argc, const char **argv, const char *prefix)
+{
+ int i = 1, verbose = 0, had_error = 0;
+ const struct option verify_commit_options[] = {
+ OPT__VERBOSE(&verbose, N_("print commit contents")),
+ OPT_END()
+ };
+
+ git_config(git_verify_commit_config, NULL);
+
+ argc = parse_options(argc, argv, prefix, verify_commit_options,
+ verify_commit_usage, PARSE_OPT_KEEP_ARGV0);
+ if (argc <= i)
+ usage_with_options(verify_commit_usage, verify_commit_options);
+
+ /* sometimes the program was terminated because this signal
+ * was received in the process of writing the gpg input: */
+ signal(SIGPIPE, SIG_IGN);
+ while (i < argc)
+ if (verify_commit(argv[i++], verbose))
+ had_error = 1;
+ return had_error;
+}