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authorLinus Torvalds <torvalds@osdl.org>2006-05-18 21:19:20 (GMT)
committerJunio C Hamano <junkio@cox.net>2006-05-18 22:46:11 (GMT)
commit5fb61b8dcfdf7bcec0793c071813e255d1803859 (patch)
treed659b35a14c586d5f8121ab22735941639e63508 /rev-list.c
parent065e0b126f47e0c280da6830956766ff2ea8cf17 (diff)
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Make "git rev-list" be a builtin
This was surprisingly easy. The diff is truly minimal: rename "main()" to "cmd_rev_list()" in rev-list.c, and rename the whole file to reflect its new built-in status. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'rev-list.c')
-rw-r--r--rev-list.c357
1 files changed, 0 insertions, 357 deletions
diff --git a/rev-list.c b/rev-list.c
deleted file mode 100644
index 8b0ec38..0000000
--- a/rev-list.c
+++ /dev/null
@@ -1,357 +0,0 @@
-#include "cache.h"
-#include "refs.h"
-#include "tag.h"
-#include "commit.h"
-#include "tree.h"
-#include "blob.h"
-#include "tree-walk.h"
-#include "diff.h"
-#include "revision.h"
-
-/* bits #0-15 in revision.h */
-
-#define COUNTED (1u<<16)
-
-static const char rev_list_usage[] =
-"git-rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
-" limiting output:\n"
-" --max-count=nr\n"
-" --max-age=epoch\n"
-" --min-age=epoch\n"
-" --sparse\n"
-" --no-merges\n"
-" --remove-empty\n"
-" --all\n"
-" ordering output:\n"
-" --topo-order\n"
-" --date-order\n"
-" formatting output:\n"
-" --parents\n"
-" --objects | --objects-edge\n"
-" --unpacked\n"
-" --header | --pretty\n"
-" --abbrev=nr | --no-abbrev\n"
-" --abbrev-commit\n"
-" special purpose:\n"
-" --bisect"
-;
-
-struct rev_info revs;
-
-static int bisect_list = 0;
-static int show_timestamp = 0;
-static int hdr_termination = 0;
-static const char *header_prefix;
-
-static void show_commit(struct commit *commit)
-{
- if (show_timestamp)
- printf("%lu ", commit->date);
- if (header_prefix)
- fputs(header_prefix, stdout);
- if (commit->object.flags & BOUNDARY)
- putchar('-');
- if (revs.abbrev_commit && revs.abbrev)
- fputs(find_unique_abbrev(commit->object.sha1, revs.abbrev),
- stdout);
- else
- fputs(sha1_to_hex(commit->object.sha1), stdout);
- if (revs.parents) {
- struct commit_list *parents = commit->parents;
- while (parents) {
- struct object *o = &(parents->item->object);
- parents = parents->next;
- if (o->flags & TMP_MARK)
- continue;
- printf(" %s", sha1_to_hex(o->sha1));
- o->flags |= TMP_MARK;
- }
- /* TMP_MARK is a general purpose flag that can
- * be used locally, but the user should clean
- * things up after it is done with them.
- */
- for (parents = commit->parents;
- parents;
- parents = parents->next)
- parents->item->object.flags &= ~TMP_MARK;
- }
- if (revs.commit_format == CMIT_FMT_ONELINE)
- putchar(' ');
- else
- putchar('\n');
-
- if (revs.verbose_header) {
- static char pretty_header[16384];
- pretty_print_commit(revs.commit_format, commit, ~0,
- pretty_header, sizeof(pretty_header),
- revs.abbrev);
- printf("%s%c", pretty_header, hdr_termination);
- }
- fflush(stdout);
-}
-
-static struct object_list **process_blob(struct blob *blob,
- struct object_list **p,
- struct name_path *path,
- const char *name)
-{
- struct object *obj = &blob->object;
-
- if (!revs.blob_objects)
- return p;
- if (obj->flags & (UNINTERESTING | SEEN))
- return p;
- obj->flags |= SEEN;
- return add_object(obj, p, path, name);
-}
-
-static struct object_list **process_tree(struct tree *tree,
- struct object_list **p,
- struct name_path *path,
- const char *name)
-{
- struct object *obj = &tree->object;
- struct tree_entry_list *entry;
- struct name_path me;
-
- if (!revs.tree_objects)
- return p;
- if (obj->flags & (UNINTERESTING | SEEN))
- return p;
- if (parse_tree(tree) < 0)
- die("bad tree object %s", sha1_to_hex(obj->sha1));
- obj->flags |= SEEN;
- p = add_object(obj, p, path, name);
- me.up = path;
- me.elem = name;
- me.elem_len = strlen(name);
- entry = tree->entries;
- tree->entries = NULL;
- while (entry) {
- struct tree_entry_list *next = entry->next;
- if (entry->directory)
- p = process_tree(entry->item.tree, p, &me, entry->name);
- else
- p = process_blob(entry->item.blob, p, &me, entry->name);
- free(entry);
- entry = next;
- }
- return p;
-}
-
-static void show_commit_list(struct rev_info *revs)
-{
- struct commit *commit;
- struct object_list *objects = NULL, **p = &objects, *pending;
-
- while ((commit = get_revision(revs)) != NULL) {
- p = process_tree(commit->tree, p, NULL, "");
- show_commit(commit);
- }
- for (pending = revs->pending_objects; pending; pending = pending->next) {
- struct object *obj = pending->item;
- const char *name = pending->name;
- if (obj->flags & (UNINTERESTING | SEEN))
- continue;
- if (obj->type == tag_type) {
- obj->flags |= SEEN;
- p = add_object(obj, p, NULL, name);
- continue;
- }
- if (obj->type == tree_type) {
- p = process_tree((struct tree *)obj, p, NULL, name);
- continue;
- }
- if (obj->type == blob_type) {
- p = process_blob((struct blob *)obj, p, NULL, name);
- continue;
- }
- die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
- }
- while (objects) {
- /* An object with name "foo\n0000000..." can be used to
- * confuse downstream git-pack-objects very badly.
- */
- const char *ep = strchr(objects->name, '\n');
- if (ep) {
- printf("%s %.*s\n", sha1_to_hex(objects->item->sha1),
- (int) (ep - objects->name),
- objects->name);
- }
- else
- printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name);
- objects = objects->next;
- }
-}
-
-/*
- * This is a truly stupid algorithm, but it's only
- * used for bisection, and we just don't care enough.
- *
- * We care just barely enough to avoid recursing for
- * non-merge entries.
- */
-static int count_distance(struct commit_list *entry)
-{
- int nr = 0;
-
- while (entry) {
- struct commit *commit = entry->item;
- struct commit_list *p;
-
- if (commit->object.flags & (UNINTERESTING | COUNTED))
- break;
- if (!revs.prune_fn || (commit->object.flags & TREECHANGE))
- nr++;
- commit->object.flags |= COUNTED;
- p = commit->parents;
- entry = p;
- if (p) {
- p = p->next;
- while (p) {
- nr += count_distance(p);
- p = p->next;
- }
- }
- }
-
- return nr;
-}
-
-static void clear_distance(struct commit_list *list)
-{
- while (list) {
- struct commit *commit = list->item;
- commit->object.flags &= ~COUNTED;
- list = list->next;
- }
-}
-
-static struct commit_list *find_bisection(struct commit_list *list)
-{
- int nr, closest;
- struct commit_list *p, *best;
-
- nr = 0;
- p = list;
- while (p) {
- if (!revs.prune_fn || (p->item->object.flags & TREECHANGE))
- nr++;
- p = p->next;
- }
- closest = 0;
- best = list;
-
- for (p = list; p; p = p->next) {
- int distance;
-
- if (revs.prune_fn && !(p->item->object.flags & TREECHANGE))
- continue;
-
- distance = count_distance(p);
- clear_distance(list);
- if (nr - distance < distance)
- distance = nr - distance;
- if (distance > closest) {
- best = p;
- closest = distance;
- }
- }
- if (best)
- best->next = NULL;
- return best;
-}
-
-static void mark_edge_parents_uninteresting(struct commit *commit)
-{
- struct commit_list *parents;
-
- for (parents = commit->parents; parents; parents = parents->next) {
- struct commit *parent = parents->item;
- if (!(parent->object.flags & UNINTERESTING))
- continue;
- mark_tree_uninteresting(parent->tree);
- if (revs.edge_hint && !(parent->object.flags & SHOWN)) {
- parent->object.flags |= SHOWN;
- printf("-%s\n", sha1_to_hex(parent->object.sha1));
- }
- }
-}
-
-static void mark_edges_uninteresting(struct commit_list *list)
-{
- for ( ; list; list = list->next) {
- struct commit *commit = list->item;
-
- if (commit->object.flags & UNINTERESTING) {
- mark_tree_uninteresting(commit->tree);
- continue;
- }
- mark_edge_parents_uninteresting(commit);
- }
-}
-
-int main(int argc, const char **argv)
-{
- struct commit_list *list;
- int i;
-
- init_revisions(&revs);
- revs.abbrev = 0;
- revs.commit_format = CMIT_FMT_UNSPECIFIED;
- argc = setup_revisions(argc, argv, &revs, NULL);
-
- for (i = 1 ; i < argc; i++) {
- const char *arg = argv[i];
-
- if (!strcmp(arg, "--header")) {
- revs.verbose_header = 1;
- continue;
- }
- if (!strcmp(arg, "--timestamp")) {
- show_timestamp = 1;
- continue;
- }
- if (!strcmp(arg, "--bisect")) {
- bisect_list = 1;
- continue;
- }
- usage(rev_list_usage);
-
- }
- if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
- /* The command line has a --pretty */
- hdr_termination = '\n';
- if (revs.commit_format == CMIT_FMT_ONELINE)
- header_prefix = "";
- else
- header_prefix = "commit ";
- }
- else if (revs.verbose_header)
- /* Only --header was specified */
- revs.commit_format = CMIT_FMT_RAW;
-
- list = revs.commits;
-
- if ((!list &&
- (!(revs.tag_objects||revs.tree_objects||revs.blob_objects) &&
- !revs.pending_objects)) ||
- revs.diff)
- usage(rev_list_usage);
-
- save_commit_buffer = revs.verbose_header;
- track_object_refs = 0;
- if (bisect_list)
- revs.limited = 1;
-
- prepare_revision_walk(&revs);
- if (revs.tree_objects)
- mark_edges_uninteresting(revs.commits);
-
- if (bisect_list)
- revs.commits = find_bisection(revs.commits);
-
- show_commit_list(&revs);
-
- return 0;
-}