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-rw-r--r--builtin/am.c62
-rw-r--r--builtin/checkout.c5
-rw-r--r--builtin/ls-files.c3
-rw-r--r--builtin/merge.c2
-rw-r--r--builtin/update-index.c2
-rw-r--r--grep.c8
-rw-r--r--imap-send.c2
-rw-r--r--merge-recursive.c578
-rw-r--r--merge-recursive.h2
-rw-r--r--sequencer.c5
-rw-r--r--sha1_file.c4
-rwxr-xr-xt/t5520-pull.sh32
-rw-r--r--trailer.c2
-rw-r--r--transport.c2
-rw-r--r--wt-status.c4
15 files changed, 419 insertions, 294 deletions
diff --git a/builtin/am.c b/builtin/am.c
index 8aa9b5b..739b34d 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1579,47 +1579,18 @@ static int build_fake_ancestor(const struct am_state *state, const char *index_f
}
/**
- * Do the three-way merge using fake ancestor, their tree constructed
- * from the fake ancestor and the postimage of the patch, and our
- * state.
- */
-static int run_fallback_merge_recursive(const struct am_state *state,
- unsigned char *orig_tree,
- unsigned char *our_tree,
- unsigned char *their_tree)
-{
- struct child_process cp = CHILD_PROCESS_INIT;
- int status;
-
- cp.git_cmd = 1;
-
- argv_array_pushf(&cp.env_array, "GITHEAD_%s=%.*s",
- sha1_to_hex(their_tree), linelen(state->msg), state->msg);
- if (state->quiet)
- argv_array_push(&cp.env_array, "GIT_MERGE_VERBOSITY=0");
-
- argv_array_push(&cp.args, "merge-recursive");
- argv_array_push(&cp.args, sha1_to_hex(orig_tree));
- argv_array_push(&cp.args, "--");
- argv_array_push(&cp.args, sha1_to_hex(our_tree));
- argv_array_push(&cp.args, sha1_to_hex(their_tree));
-
- status = run_command(&cp) ? (-1) : 0;
- discard_cache();
- read_cache();
- return status;
-}
-
-/**
* Attempt a threeway merge, using index_path as the temporary index.
*/
static int fall_back_threeway(const struct am_state *state, const char *index_path)
{
- unsigned char orig_tree[GIT_SHA1_RAWSZ], their_tree[GIT_SHA1_RAWSZ],
- our_tree[GIT_SHA1_RAWSZ];
+ struct object_id orig_tree, their_tree, our_tree;
+ const struct object_id *bases[1] = { &orig_tree };
+ struct merge_options o;
+ struct commit *result;
+ char *their_tree_name;
- if (get_sha1("HEAD", our_tree) < 0)
- hashcpy(our_tree, EMPTY_TREE_SHA1_BIN);
+ if (get_oid("HEAD", &our_tree) < 0)
+ hashcpy(our_tree.hash, EMPTY_TREE_SHA1_BIN);
if (build_fake_ancestor(state, index_path))
return error("could not build fake ancestor");
@@ -1627,7 +1598,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
discard_cache();
read_cache_from(index_path);
- if (write_index_as_tree(orig_tree, &the_index, index_path, 0, NULL))
+ if (write_index_as_tree(orig_tree.hash, &the_index, index_path, 0, NULL))
return error(_("Repository lacks necessary blobs to fall back on 3-way merge."));
say(state, stdout, _("Using index info to reconstruct a base tree..."));
@@ -1643,7 +1614,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
init_revisions(&rev_info, NULL);
rev_info.diffopt.output_format = DIFF_FORMAT_NAME_STATUS;
diff_opt_parse(&rev_info.diffopt, &diff_filter_str, 1, rev_info.prefix);
- add_pending_sha1(&rev_info, "HEAD", our_tree, 0);
+ add_pending_sha1(&rev_info, "HEAD", our_tree.hash, 0);
diff_setup_done(&rev_info.diffopt);
run_diff_index(&rev_info, 1);
}
@@ -1652,7 +1623,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
return error(_("Did you hand edit your patch?\n"
"It does not apply to blobs recorded in its index."));
- if (write_index_as_tree(their_tree, &the_index, index_path, 0, NULL))
+ if (write_index_as_tree(their_tree.hash, &the_index, index_path, 0, NULL))
return error("could not write tree");
say(state, stdout, _("Falling back to patching base and 3-way merge..."));
@@ -1668,11 +1639,22 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
* changes.
*/
- if (run_fallback_merge_recursive(state, orig_tree, our_tree, their_tree)) {
+ init_merge_options(&o);
+
+ o.branch1 = "HEAD";
+ their_tree_name = xstrfmt("%.*s", linelen(state->msg), state->msg);
+ o.branch2 = their_tree_name;
+
+ if (state->quiet)
+ o.verbosity = 0;
+
+ if (merge_recursive_generic(&o, &our_tree, &their_tree, 1, bases, &result)) {
rerere(state->allow_rerere_autoupdate);
+ free(their_tree_name);
return error(_("Failed to merge in the changes."));
}
+ free(their_tree_name);
return 0;
}
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 27c1a05..8d852d4 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -567,10 +567,13 @@ static int merge_working_tree(const struct checkout_opts *opts,
o.ancestor = old->name;
o.branch1 = new->name;
o.branch2 = "local";
- merge_trees(&o, new->commit->tree, work,
+ ret = merge_trees(&o, new->commit->tree, work,
old->commit->tree, &result);
+ if (ret < 0)
+ exit(128);
ret = reset_tree(new->commit->tree, opts, 0,
writeout_error);
+ strbuf_release(&o.obuf);
if (ret)
return ret;
}
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index f02e3d2..00ea91a 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -118,7 +118,8 @@ static void show_killed_files(struct dir_struct *dir)
*/
pos = cache_name_pos(ent->name, ent->len);
if (0 <= pos)
- die("bug in show-killed-files");
+ die("BUG: killed-file %.*s not found",
+ ent->len, ent->name);
pos = -pos - 1;
while (pos < active_nr &&
ce_stage(active_cache[pos]))
diff --git a/builtin/merge.c b/builtin/merge.c
index 19b3bc2..148a9a5 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -673,6 +673,8 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
hold_locked_index(&lock, 1);
clean = merge_recursive(&o, head,
remoteheads->item, reversed, &result);
+ if (clean < 0)
+ exit(128);
if (active_cache_changed &&
write_locked_index(&the_index, &lock, COMMIT_LOCK))
die (_("unable to write %s"), get_index_file());
diff --git a/builtin/update-index.c b/builtin/update-index.c
index 6cdfd5f..ba04b19 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -1146,7 +1146,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
report(_("Untracked cache enabled for '%s'"), get_git_work_tree());
break;
default:
- die("Bug: bad untracked_cache value: %d", untracked_cache);
+ die("BUG: bad untracked_cache value: %d", untracked_cache);
}
if (active_cache_changed) {
diff --git a/grep.c b/grep.c
index 58d599e..d7d00b8 100644
--- a/grep.c
+++ b/grep.c
@@ -693,10 +693,10 @@ static struct grep_expr *prep_header_patterns(struct grep_opt *opt)
for (p = opt->header_list; p; p = p->next) {
if (p->token != GREP_PATTERN_HEAD)
- die("bug: a non-header pattern in grep header list.");
+ die("BUG: a non-header pattern in grep header list.");
if (p->field < GREP_HEADER_FIELD_MIN ||
GREP_HEADER_FIELD_MAX <= p->field)
- die("bug: unknown header field %d", p->field);
+ die("BUG: unknown header field %d", p->field);
compile_regexp(p, opt);
}
@@ -709,7 +709,7 @@ static struct grep_expr *prep_header_patterns(struct grep_opt *opt)
h = compile_pattern_atom(&pp);
if (!h || pp != p->next)
- die("bug: malformed header expr");
+ die("BUG: malformed header expr");
if (!header_group[p->field]) {
header_group[p->field] = h;
continue;
@@ -1514,7 +1514,7 @@ static int grep_source_1(struct grep_opt *opt, struct grep_source *gs, int colle
case GREP_BINARY_TEXT:
break;
default:
- die("bug: unknown binary handling mode");
+ die("BUG: unknown binary handling mode");
}
}
diff --git a/imap-send.c b/imap-send.c
index db0fafe..0f5f476 100644
--- a/imap-send.c
+++ b/imap-send.c
@@ -511,7 +511,7 @@ static int nfsnprintf(char *buf, int blen, const char *fmt, ...)
va_start(va, fmt);
if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen)
- die("Fatal: buffer too small. Please report a bug.");
+ die("BUG: buffer too small. Please report a bug.");
va_end(va);
return ret;
}
diff --git a/merge-recursive.c b/merge-recursive.c
index a4a1195..c9e4dbc 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -23,6 +23,37 @@
#include "dir.h"
#include "submodule.h"
+static void flush_output(struct merge_options *o)
+{
+ if (o->buffer_output < 2 && o->obuf.len) {
+ fputs(o->obuf.buf, stdout);
+ strbuf_reset(&o->obuf);
+ }
+}
+
+static int err(struct merge_options *o, const char *err, ...)
+{
+ va_list params;
+
+ if (o->buffer_output < 2)
+ flush_output(o);
+ else {
+ strbuf_complete(&o->obuf, '\n');
+ strbuf_addstr(&o->obuf, "error: ");
+ }
+ va_start(params, err);
+ strbuf_vaddf(&o->obuf, err, params);
+ va_end(params);
+ if (o->buffer_output > 1)
+ strbuf_addch(&o->obuf, '\n');
+ else {
+ error("%s", o->obuf.buf);
+ strbuf_reset(&o->obuf);
+ }
+
+ return -1;
+}
+
static struct tree *shift_tree_object(struct tree *one, struct tree *two,
const char *subtree_shift)
{
@@ -148,14 +179,6 @@ static int show(struct merge_options *o, int v)
return (!o->call_depth && o->verbosity >= v) || o->verbosity >= 5;
}
-static void flush_output(struct merge_options *o)
-{
- if (o->obuf.len) {
- fputs(o->obuf.buf, stdout);
- strbuf_reset(&o->obuf);
- }
-}
-
__attribute__((format (printf, 3, 4)))
static void output(struct merge_options *o, int v, const char *fmt, ...)
{
@@ -177,28 +200,30 @@ static void output(struct merge_options *o, int v, const char *fmt, ...)
static void output_commit_title(struct merge_options *o, struct commit *commit)
{
- int i;
- flush_output(o);
- for (i = o->call_depth; i--;)
- fputs(" ", stdout);
+ strbuf_addchars(&o->obuf, ' ', o->call_depth * 2);
if (commit->util)
- printf("virtual %s\n", merge_remote_util(commit)->name);
+ strbuf_addf(&o->obuf, "virtual %s\n",
+ merge_remote_util(commit)->name);
else {
- printf("%s ", find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV));
+ strbuf_addf(&o->obuf, "%s ",
+ find_unique_abbrev(commit->object.oid.hash,
+ DEFAULT_ABBREV));
if (parse_commit(commit) != 0)
- printf(_("(bad commit)\n"));
+ strbuf_addf(&o->obuf, _("(bad commit)\n"));
else {
const char *title;
const char *msg = get_commit_buffer(commit, NULL);
int len = find_commit_subject(msg, &title);
if (len)
- printf("%.*s\n", len, title);
+ strbuf_addf(&o->obuf, "%.*s\n", len, title);
unuse_commit_buffer(commit, msg);
}
}
+ flush_output(o);
}
-static int add_cacheinfo(unsigned int mode, const struct object_id *oid,
+static int add_cacheinfo(struct merge_options *o,
+ unsigned int mode, const struct object_id *oid,
const char *path, int stage, int refresh, int options)
{
struct cache_entry *ce;
@@ -206,7 +231,7 @@ static int add_cacheinfo(unsigned int mode, const struct object_id *oid,
ce = make_cache_entry(mode, oid ? oid->hash : null_sha1, path, stage, 0);
if (!ce)
- return error(_("addinfo_cache failed for path '%s'"), path);
+ return err(o, _("addinfo_cache failed for path '%s'"), path);
ret = add_cache_entry(ce, options);
if (refresh) {
@@ -268,15 +293,17 @@ struct tree *write_tree_from_memory(struct merge_options *o)
fprintf(stderr, "BUG: %d %.*s\n", ce_stage(ce),
(int)ce_namelen(ce), ce->name);
}
- die("Bug in merge-recursive.c");
+ die("BUG: unmerged index entries in merge-recursive.c");
}
if (!active_cache_tree)
active_cache_tree = cache_tree();
if (!cache_tree_fully_valid(active_cache_tree) &&
- cache_tree_update(&the_index, 0) < 0)
- die(_("error building trees"));
+ cache_tree_update(&the_index, 0) < 0) {
+ err(o, _("error building trees"));
+ return NULL;
+ }
result = lookup_tree(active_cache_tree->sha1);
@@ -542,7 +569,8 @@ static struct string_list *get_renames(struct merge_options *o,
return renames;
}
-static int update_stages(const char *path, const struct diff_filespec *o,
+static int update_stages(struct merge_options *opt, const char *path,
+ const struct diff_filespec *o,
const struct diff_filespec *a,
const struct diff_filespec *b)
{
@@ -561,13 +589,13 @@ static int update_stages(const char *path, const struct diff_filespec *o,
if (remove_file_from_cache(path))
return -1;
if (o)
- if (add_cacheinfo(o->mode, &o->oid, path, 1, 0, options))
+ if (add_cacheinfo(opt, o->mode, &o->oid, path, 1, 0, options))
return -1;
if (a)
- if (add_cacheinfo(a->mode, &a->oid, path, 2, 0, options))
+ if (add_cacheinfo(opt, a->mode, &a->oid, path, 2, 0, options))
return -1;
if (b)
- if (add_cacheinfo(b->mode, &b->oid, path, 3, 0, options))
+ if (add_cacheinfo(opt, b->mode, &b->oid, path, 3, 0, options))
return -1;
return 0;
}
@@ -667,23 +695,21 @@ static int was_tracked(const char *path)
{
int pos = cache_name_pos(path, strlen(path));
- if (pos < 0)
- pos = -1 - pos;
- while (pos < active_nr &&
- !strcmp(path, active_cache[pos]->name)) {
- /*
- * If stage #0, it is definitely tracked.
- * If it has stage #2 then it was tracked
- * before this merge started. All other
- * cases the path was not tracked.
- */
- switch (ce_stage(active_cache[pos])) {
- case 0:
- case 2:
+ if (0 <= pos)
+ /* we have been tracking this path */
+ return 1;
+
+ /*
+ * Look for an unmerged entry for the path,
+ * specifically stage #2, which would indicate
+ * that "our" side before the merge started
+ * had the path tracked (and resulted in a conflict).
+ */
+ for (pos = -1 - pos;
+ pos < active_nr && !strcmp(path, active_cache[pos]->name);
+ pos++)
+ if (ce_stage(active_cache[pos]) == 2)
return 1;
- }
- pos++;
- }
return 0;
}
@@ -718,12 +744,10 @@ static int make_room_for_path(struct merge_options *o, const char *path)
/* Make sure leading directories are created */
status = safe_create_leading_directories_const(path);
if (status) {
- if (status == SCLD_EXISTS) {
+ if (status == SCLD_EXISTS)
/* something else exists */
- error(msg, path, _(": perhaps a D/F conflict?"));
- return -1;
- }
- die(msg, path, "");
+ return err(o, msg, path, _(": perhaps a D/F conflict?"));
+ return err(o, msg, path, "");
}
/*
@@ -731,7 +755,7 @@ static int make_room_for_path(struct merge_options *o, const char *path)
* tracking it.
*/
if (would_lose_untracked(path))
- return error(_("refusing to lose untracked file at '%s'"),
+ return err(o, _("refusing to lose untracked file at '%s'"),
path);
/* Successful unlink is good.. */
@@ -741,16 +765,18 @@ static int make_room_for_path(struct merge_options *o, const char *path)
if (errno == ENOENT)
return 0;
/* .. but not some other error (who really cares what?) */
- return error(msg, path, _(": perhaps a D/F conflict?"));
+ return err(o, msg, path, _(": perhaps a D/F conflict?"));
}
-static void update_file_flags(struct merge_options *o,
- const struct object_id *oid,
- unsigned mode,
- const char *path,
- int update_cache,
- int update_wd)
+static int update_file_flags(struct merge_options *o,
+ const struct object_id *oid,
+ unsigned mode,
+ const char *path,
+ int update_cache,
+ int update_wd)
{
+ int ret = 0;
+
if (o->call_depth)
update_wd = 0;
@@ -771,9 +797,11 @@ static void update_file_flags(struct merge_options *o,
buf = read_sha1_file(oid->hash, &type, &size);
if (!buf)
- die(_("cannot read object %s '%s'"), oid_to_hex(oid), path);
- if (type != OBJ_BLOB)
- die(_("blob expected for %s '%s'"), oid_to_hex(oid), path);
+ return err(o, _("cannot read object %s '%s'"), oid_to_hex(oid), path);
+ if (type != OBJ_BLOB) {
+ ret = err(o, _("blob expected for %s '%s'"), oid_to_hex(oid), path);
+ goto free_buf;
+ }
if (S_ISREG(mode)) {
struct strbuf strbuf = STRBUF_INIT;
if (convert_to_working_tree(path, buf, size, &strbuf)) {
@@ -785,8 +813,7 @@ static void update_file_flags(struct merge_options *o,
if (make_room_for_path(o, path) < 0) {
update_wd = 0;
- free(buf);
- goto update_index;
+ goto free_buf;
}
if (S_ISREG(mode) || (!has_symlinks && S_ISLNK(mode))) {
int fd;
@@ -795,8 +822,11 @@ static void update_file_flags(struct merge_options *o,
else
mode = 0666;
fd = open(path, O_WRONLY | O_TRUNC | O_CREAT, mode);
- if (fd < 0)
- die_errno(_("failed to open '%s'"), path);
+ if (fd < 0) {
+ ret = err(o, _("failed to open '%s': %s"),
+ path, strerror(errno));
+ goto free_buf;
+ }
write_in_full(fd, buf, size);
close(fd);
} else if (S_ISLNK(mode)) {
@@ -804,25 +834,29 @@ static void update_file_flags(struct merge_options *o,
safe_create_leading_directories_const(path);
unlink(path);
if (symlink(lnk, path))
- die_errno(_("failed to symlink '%s'"), path);
+ ret = err(o, _("failed to symlink '%s': %s"),
+ path, strerror(errno));
free(lnk);
} else
- die(_("do not know what to do with %06o %s '%s'"),
- mode, oid_to_hex(oid), path);
+ ret = err(o,
+ _("do not know what to do with %06o %s '%s'"),
+ mode, oid_to_hex(oid), path);
+ free_buf:
free(buf);
}
update_index:
- if (update_cache)
- add_cacheinfo(mode, oid, path, 0, update_wd, ADD_CACHE_OK_TO_ADD);
+ if (!ret && update_cache)
+ add_cacheinfo(o, mode, oid, path, 0, update_wd, ADD_CACHE_OK_TO_ADD);
+ return ret;
}
-static void update_file(struct merge_options *o,
- int clean,
- const struct object_id *oid,
- unsigned mode,
- const char *path)
+static int update_file(struct merge_options *o,
+ int clean,
+ const struct object_id *oid,
+ unsigned mode,
+ const char *path)
{
- update_file_flags(o, oid, mode, path, o->call_depth || clean, !o->call_depth);
+ return update_file_flags(o, oid, mode, path, o->call_depth || clean, !o->call_depth);
}
/* Low level file merging, update and removal */
@@ -896,117 +930,120 @@ static int merge_3way(struct merge_options *o,
return merge_status;
}
-static struct merge_file_info merge_file_1(struct merge_options *o,
+static int merge_file_1(struct merge_options *o,
const struct diff_filespec *one,
const struct diff_filespec *a,
const struct diff_filespec *b,
const char *branch1,
- const char *branch2)
+ const char *branch2,
+ struct merge_file_info *result)
{
- struct merge_file_info result;
- result.merge = 0;
- result.clean = 1;
+ result->merge = 0;
+ result->clean = 1;
if ((S_IFMT & a->mode) != (S_IFMT & b->mode)) {
- result.clean = 0;
+ result->clean = 0;
if (S_ISREG(a->mode)) {
- result.mode = a->mode;
- oidcpy(&result.oid, &a->oid);
+ result->mode = a->mode;
+ oidcpy(&result->oid, &a->oid);
} else {
- result.mode = b->mode;
- oidcpy(&result.oid, &b->oid);
+ result->mode = b->mode;
+ oidcpy(&result->oid, &b->oid);
}
} else {
if (!oid_eq(&a->oid, &one->oid) && !oid_eq(&b->oid, &one->oid))
- result.merge = 1;
+ result->merge = 1;
/*
* Merge modes
*/
if (a->mode == b->mode || a->mode == one->mode)
- result.mode = b->mode;
+ result->mode = b->mode;
else {
- result.mode = a->mode;
+ result->mode = a->mode;
if (b->mode != one->mode) {
- result.clean = 0;
- result.merge = 1;
+ result->clean = 0;
+ result->merge = 1;
}
}
if (oid_eq(&a->oid, &b->oid) || oid_eq(&a->oid, &one->oid))
- oidcpy(&result.oid, &b->oid);
+ oidcpy(&result->oid, &b->oid);
else if (oid_eq(&b->oid, &one->oid))
- oidcpy(&result.oid, &a->oid);
+ oidcpy(&result->oid, &a->oid);
else if (S_ISREG(a->mode)) {
mmbuffer_t result_buf;
- int merge_status;
+ int ret = 0, merge_status;
merge_status = merge_3way(o, &result_buf, one, a, b,
branch1, branch2);
if ((merge_status < 0) || !result_buf.ptr)
- die(_("Failed to execute internal merge"));
+ ret = err(o, _("Failed to execute internal merge"));
- if (write_sha1_file(result_buf.ptr, result_buf.size,
- blob_type, result.oid.hash))
- die(_("Unable to add %s to database"),
- a->path);
+ if (!ret && write_sha1_file(result_buf.ptr, result_buf.size,
+ blob_type, result->oid.hash))
+ ret = err(o, _("Unable to add %s to database"),
+ a->path);
free(result_buf.ptr);
- result.clean = (merge_status == 0);
+ if (ret)
+ return ret;
+ result->clean = (merge_status == 0);
} else if (S_ISGITLINK(a->mode)) {
- result.clean = merge_submodule(result.oid.hash,
+ result->clean = merge_submodule(result->oid.hash,
one->path,
one->oid.hash,
a->oid.hash,
b->oid.hash,
!o->call_depth);
} else if (S_ISLNK(a->mode)) {
- oidcpy(&result.oid, &a->oid);
+ oidcpy(&result->oid, &a->oid);
if (!oid_eq(&a->oid, &b->oid))
- result.clean = 0;
- } else {
- die(_("unsupported object type in the tree"));
- }
+ result->clean = 0;
+ } else
+ die("BUG: unsupported object type in the tree");
}
- return result;
+ return 0;
}
-static struct merge_file_info
-merge_file_special_markers(struct merge_options *o,
+static int merge_file_special_markers(struct merge_options *o,
const struct diff_filespec *one,
const struct diff_filespec *a,
const struct diff_filespec *b,
const char *branch1,
const char *filename1,
const char *branch2,
- const char *filename2)
+ const char *filename2,
+ struct merge_file_info *mfi)
{
char *side1 = NULL;
char *side2 = NULL;
- struct merge_file_info mfi;
+ int ret;
if (filename1)
side1 = xstrfmt("%s:%s", branch1, filename1);
if (filename2)
side2 = xstrfmt("%s:%s", branch2, filename2);
- mfi = merge_file_1(o, one, a, b,
- side1 ? side1 : branch1, side2 ? side2 : branch2);
+ ret = merge_file_1(o, one, a, b,
+ side1 ? side1 : branch1,
+ side2 ? side2 : branch2, mfi);
free(side1);
free(side2);
- return mfi;
+ return ret;
}
-static struct merge_file_info merge_file_one(struct merge_options *o,
+static int merge_file_one(struct merge_options *o,
const char *path,
const struct object_id *o_oid, int o_mode,
const struct object_id *a_oid, int a_mode,
const struct object_id *b_oid, int b_mode,
const char *branch1,
- const char *branch2)
+ const char *branch2,
+ struct merge_file_info *mfi)
{
struct diff_filespec one, a, b;
@@ -1017,10 +1054,10 @@ static struct merge_file_info merge_file_one(struct merge_options *o,
a.mode = a_mode;
oidcpy(&b.oid, b_oid);
b.mode = b_mode;
- return merge_file_1(o, &one, &a, &b, branch1, branch2);
+ return merge_file_1(o, &one, &a, &b, branch1, branch2, mfi);
}
-static void handle_change_delete(struct merge_options *o,
+static int handle_change_delete(struct merge_options *o,
const char *path,
const struct object_id *o_oid, int o_mode,
const struct object_id *a_oid, int a_mode,
@@ -1028,6 +1065,7 @@ static void handle_change_delete(struct merge_options *o,
const char *change, const char *change_past)
{
char *renamed = NULL;
+ int ret = 0;
if (dir_in_way(path, !o->call_depth)) {
renamed = unique_path(o, path, a_oid ? o->branch1 : o->branch2);
}
@@ -1038,21 +1076,23 @@ static void handle_change_delete(struct merge_options *o,
* correct; since there is no true "middle point" between
* them, simply reuse the base version for virtual merge base.
*/
- remove_file_from_cache(path);
- update_file(o, 0, o_oid, o_mode, renamed ? renamed : path);
+ ret = remove_file_from_cache(path);
+ if (!ret)
+ ret = update_file(o, 0, o_oid, o_mode,
+ renamed ? renamed : path);
} else if (!a_oid) {
if (!renamed) {
output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
"and %s in %s. Version %s of %s left in tree."),
change, path, o->branch1, change_past,
o->branch2, o->branch2, path);
- update_file(o, 0, b_oid, b_mode, path);
+ ret = update_file(o, 0, b_oid, b_mode, path);
} else {
output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
"and %s in %s. Version %s of %s left in tree at %s."),
change, path, o->branch1, change_past,
o->branch2, o->branch2, path, renamed);
- update_file(o, 0, b_oid, b_mode, renamed);
+ ret = update_file(o, 0, b_oid, b_mode, renamed);
}
} else {
if (!renamed) {
@@ -1065,7 +1105,7 @@ static void handle_change_delete(struct merge_options *o,
"and %s in %s. Version %s of %s left in tree at %s."),
change, path, o->branch2, change_past,
o->branch1, o->branch1, path, renamed);
- update_file(o, 0, a_oid, a_mode, renamed);
+ ret = update_file(o, 0, a_oid, a_mode, renamed);
}
/*
* No need to call update_file() on path when !renamed, since
@@ -1075,9 +1115,11 @@ static void handle_change_delete(struct merge_options *o,
*/
}
free(renamed);
+
+ return ret;
}
-static void conflict_rename_delete(struct merge_options *o,
+static int conflict_rename_delete(struct merge_options *o,
struct diff_filepair *pair,
const char *rename_branch,
const char *other_branch)
@@ -1097,21 +1139,20 @@ static void conflict_rename_delete(struct merge_options *o,
b_mode = dest->mode;
}
- handle_change_delete(o,
- o->call_depth ? orig->path : dest->path,
- &orig->oid, orig->mode,
- a_oid, a_mode,
- b_oid, b_mode,
- _("rename"), _("renamed"));
-
- if (o->call_depth) {
- remove_file_from_cache(dest->path);
- } else {
- update_stages(dest->path, NULL,
- rename_branch == o->branch1 ? dest : NULL,
- rename_branch == o->branch1 ? NULL : dest);
- }
+ if (handle_change_delete(o,
+ o->call_depth ? orig->path : dest->path,
+ &orig->oid, orig->mode,
+ a_oid, a_mode,
+ b_oid, b_mode,
+ _("rename"), _("renamed")))
+ return -1;
+ if (o->call_depth)
+ return remove_file_from_cache(dest->path);
+ else
+ return update_stages(o, dest->path, NULL,
+ rename_branch == o->branch1 ? dest : NULL,
+ rename_branch == o->branch1 ? NULL : dest);
}
static struct diff_filespec *filespec_from_entry(struct diff_filespec *target,
@@ -1127,7 +1168,7 @@ static struct diff_filespec *filespec_from_entry(struct diff_filespec *target,
return target;
}
-static void handle_file(struct merge_options *o,
+static int handle_file(struct merge_options *o,
struct diff_filespec *rename,
int stage,
struct rename_conflict_info *ci)
@@ -1137,6 +1178,7 @@ static void handle_file(struct merge_options *o,
const char *cur_branch, *other_branch;
struct diff_filespec other;
struct diff_filespec *add;
+ int ret;
if (stage == 2) {
dst_entry = ci->dst_entry1;
@@ -1151,7 +1193,8 @@ static void handle_file(struct merge_options *o,
add = filespec_from_entry(&other, dst_entry, stage ^ 1);
if (add) {
char *add_name = unique_path(o, rename->path, other_branch);
- update_file(o, 0, &add->oid, add->mode, add_name);
+ if (update_file(o, 0, &add->oid, add->mode, add_name))
+ return -1;
remove_file(o, 0, rename->path, 0);
dst_name = unique_path(o, rename->path, cur_branch);
@@ -1162,17 +1205,20 @@ static void handle_file(struct merge_options *o,
rename->path, other_branch, dst_name);
}
}
- update_file(o, 0, &rename->oid, rename->mode, dst_name);
- if (stage == 2)
- update_stages(rename->path, NULL, rename, add);
+ if ((ret = update_file(o, 0, &rename->oid, rename->mode, dst_name)))
+ ; /* fall through, do allow dst_name to be released */
+ else if (stage == 2)
+ ret = update_stages(o, rename->path, NULL, rename, add);
else
- update_stages(rename->path, NULL, add, rename);
+ ret = update_stages(o, rename->path, NULL, add, rename);
if (dst_name != rename->path)
free(dst_name);
+
+ return ret;
}
-static void conflict_rename_rename_1to2(struct merge_options *o,
+static int conflict_rename_rename_1to2(struct merge_options *o,
struct rename_conflict_info *ci)
{
/* One file was renamed in both branches, but to different names. */
@@ -1190,18 +1236,21 @@ static void conflict_rename_rename_1to2(struct merge_options *o,
struct merge_file_info mfi;
struct diff_filespec other;
struct diff_filespec *add;
- mfi = merge_file_one(o, one->path,
+ if (merge_file_one(o, one->path,
&one->oid, one->mode,
&a->oid, a->mode,
&b->oid, b->mode,
- ci->branch1, ci->branch2);
+ ci->branch1, ci->branch2, &mfi))
+ return -1;
+
/*
* FIXME: For rename/add-source conflicts (if we could detect
* such), this is wrong. We should instead find a unique
* pathname and then either rename the add-source file to that
* unique path, or use that unique path instead of src here.
*/
- update_file(o, 0, &mfi.oid, mfi.mode, one->path);
+ if (update_file(o, 0, &mfi.oid, mfi.mode, one->path))
+ return -1;
/*
* Above, we put the merged content at the merge-base's
@@ -1212,22 +1261,26 @@ static void conflict_rename_rename_1to2(struct merge_options *o,
* resolving the conflict at that path in its favor.
*/
add = filespec_from_entry(&other, ci->dst_entry1, 2 ^ 1);
- if (add)
- update_file(o, 0, &add->oid, add->mode, a->path);
+ if (add) {
+ if (update_file(o, 0, &add->oid, add->mode, a->path))
+ return -1;
+ }
else
remove_file_from_cache(a->path);
add = filespec_from_entry(&other, ci->dst_entry2, 3 ^ 1);
- if (add)
- update_file(o, 0, &add->oid, add->mode, b->path);
+ if (add) {
+ if (update_file(o, 0, &add->oid, add->mode, b->path))
+ return -1;
+ }
else
remove_file_from_cache(b->path);
- } else {
- handle_file(o, a, 2, ci);
- handle_file(o, b, 3, ci);
- }
+ } else if (handle_file(o, a, 2, ci) || handle_file(o, b, 3, ci))
+ return -1;
+
+ return 0;
}
-static void conflict_rename_rename_2to1(struct merge_options *o,
+static int conflict_rename_rename_2to1(struct merge_options *o,
struct rename_conflict_info *ci)
{
/* Two files, a & b, were renamed to the same thing, c. */
@@ -1238,6 +1291,7 @@ static void conflict_rename_rename_2to1(struct merge_options *o,
char *path = c1->path; /* == c2->path */
struct merge_file_info mfi_c1;
struct merge_file_info mfi_c2;
+ int ret;
output(o, 1, _("CONFLICT (rename/rename): "
"Rename %s->%s in %s. "
@@ -1248,12 +1302,13 @@ static void conflict_rename_rename_2to1(struct merge_options *o,
remove_file(o, 1, a->path, o->call_depth || would_lose_untracked(a->path));
remove_file(o, 1, b->path, o->call_depth || would_lose_untracked(b->path));
- mfi_c1 = merge_file_special_markers(o, a, c1, &ci->ren1_other,
- o->branch1, c1->path,
- o->branch2, ci->ren1_other.path);
- mfi_c2 = merge_file_special_markers(o, b, &ci->ren2_other, c2,
- o->branch1, ci->ren2_other.path,
- o->branch2, c2->path);
+ if (merge_file_special_markers(o, a, c1, &ci->ren1_other,
+ o->branch1, c1->path,
+ o->branch2, ci->ren1_other.path, &mfi_c1) ||
+ merge_file_special_markers(o, b, &ci->ren2_other, c2,
+ o->branch1, ci->ren2_other.path,
+ o->branch2, c2->path, &mfi_c2))
+ return -1;
if (o->call_depth) {
/*
@@ -1264,19 +1319,25 @@ static void conflict_rename_rename_2to1(struct merge_options *o,
* again later for the non-recursive merge.
*/
remove_file(o, 0, path, 0);
- update_file(o, 0, &mfi_c1.oid, mfi_c1.mode, a->path);
- update_file(o, 0, &mfi_c2.oid, mfi_c2.mode, b->path);
+ ret = update_file(o, 0, &mfi_c1.oid, mfi_c1.mode, a->path);
+ if (!ret)
+ ret = update_file(o, 0, &mfi_c2.oid, mfi_c2.mode,
+ b->path);
} else {
char *new_path1 = unique_path(o, path, ci->branch1);
char *new_path2 = unique_path(o, path, ci->branch2);
output(o, 1, _("Renaming %s to %s and %s to %s instead"),
a->path, new_path1, b->path, new_path2);
remove_file(o, 0, path, 0);
- update_file(o, 0, &mfi_c1.oid, mfi_c1.mode, new_path1);
- update_file(o, 0, &mfi_c2.oid, mfi_c2.mode, new_path2);
+ ret = update_file(o, 0, &mfi_c1.oid, mfi_c1.mode, new_path1);
+ if (!ret)
+ ret = update_file(o, 0, &mfi_c2.oid, mfi_c2.mode,
+ new_path2);
free(new_path2);
free(new_path1);
}
+
+ return ret;
}
static int process_renames(struct merge_options *o,
@@ -1354,7 +1415,7 @@ static int process_renames(struct merge_options *o,
const char *ren2_dst = ren2->pair->two->path;
enum rename_type rename_type;
if (strcmp(ren1_src, ren2_src) != 0)
- die("ren1_src != ren2_src");
+ die("BUG: ren1_src != ren2_src");
ren2->dst_entry->processed = 1;
ren2->processed = 1;
if (strcmp(ren1_dst, ren2_dst) != 0) {
@@ -1388,7 +1449,7 @@ static int process_renames(struct merge_options *o,
ren2 = lookup->util;
ren2_dst = ren2->pair->two->path;
if (strcmp(ren1_dst, ren2_dst) != 0)
- die("ren1_dst != ren2_dst");
+ die("BUG: ren1_dst != ren2_dst");
clean_merge = 0;
ren2->processed = 1;
@@ -1461,12 +1522,13 @@ static int process_renames(struct merge_options *o,
* update_file_flags() instead of
* update_file().
*/
- update_file_flags(o,
- &ren1->pair->two->oid,
- ren1->pair->two->mode,
- ren1_dst,
- 1, /* update_cache */
- 0 /* update_wd */);
+ if (update_file_flags(o,
+ &ren1->pair->two->oid,
+ ren1->pair->two->mode,
+ ren1_dst,
+ 1, /* update_cache */
+ 0 /* update_wd */))
+ clean_merge = -1;
} else if (!oid_eq(&dst_other.oid, &null_oid)) {
clean_merge = 0;
try_merge = 1;
@@ -1476,26 +1538,33 @@ static int process_renames(struct merge_options *o,
ren1_dst, branch2);
if (o->call_depth) {
struct merge_file_info mfi;
- mfi = merge_file_one(o, ren1_dst, &null_oid, 0,
- &ren1->pair->two->oid,
- ren1->pair->two->mode,
- &dst_other.oid,
- dst_other.mode,
- branch1, branch2);
+ if (merge_file_one(o, ren1_dst, &null_oid, 0,
+ &ren1->pair->two->oid,
+ ren1->pair->two->mode,
+ &dst_other.oid,
+ dst_other.mode,
+ branch1, branch2, &mfi)) {
+ clean_merge = -1;
+ goto cleanup_and_return;
+ }
output(o, 1, _("Adding merged %s"), ren1_dst);
- update_file(o, 0, &mfi.oid,
- mfi.mode, ren1_dst);
+ if (update_file(o, 0, &mfi.oid,
+ mfi.mode, ren1_dst))
+ clean_merge = -1;
try_merge = 0;
} else {
char *new_path = unique_path(o, ren1_dst, branch2);
output(o, 1, _("Adding as %s instead"), new_path);
- update_file(o, 0, &dst_other.oid,
- dst_other.mode, new_path);
+ if (update_file(o, 0, &dst_other.oid,
+ dst_other.mode, new_path))
+ clean_merge = -1;
free(new_path);
}
} else
try_merge = 1;
+ if (clean_merge < 0)
+ goto cleanup_and_return;
if (try_merge) {
struct diff_filespec *one, *a, *b;
src_other.path = (char *)ren1_src;
@@ -1522,6 +1591,7 @@ static int process_renames(struct merge_options *o,
}
}
}
+cleanup_and_return:
string_list_clear(&a_by_dst, 0);
string_list_clear(&b_by_dst, 0);
@@ -1533,23 +1603,25 @@ static struct object_id *stage_oid(const struct object_id *oid, unsigned mode)
return (is_null_oid(oid) || mode == 0) ? NULL: (struct object_id *)oid;
}
-static int read_oid_strbuf(const struct object_id *oid, struct strbuf *dst)
+static int read_oid_strbuf(struct merge_options *o,
+ const struct object_id *oid, struct strbuf *dst)
{
void *buf;
enum object_type type;
unsigned long size;
buf = read_sha1_file(oid->hash, &type, &size);
if (!buf)
- return error(_("cannot read object %s"), oid_to_hex(oid));
+ return err(o, _("cannot read object %s"), oid_to_hex(oid));
if (type != OBJ_BLOB) {
free(buf);
- return error(_("object %s is not a blob"), oid_to_hex(oid));
+ return err(o, _("object %s is not a blob"), oid_to_hex(oid));
}
strbuf_attach(dst, buf, size, size + 1);
return 0;
}
-static int blob_unchanged(const struct object_id *o_oid,
+static int blob_unchanged(struct merge_options *opt,
+ const struct object_id *o_oid,
unsigned o_mode,
const struct object_id *a_oid,
unsigned a_mode,
@@ -1567,7 +1639,7 @@ static int blob_unchanged(const struct object_id *o_oid,
return 0;
assert(o_oid && a_oid);
- if (read_oid_strbuf(o_oid, &o) || read_oid_strbuf(a_oid, &a))
+ if (read_oid_strbuf(opt, o_oid, &o) || read_oid_strbuf(opt, a_oid, &a))
goto error_return;
/*
* Note: binary | is used so that both renormalizations are
@@ -1584,18 +1656,18 @@ error_return:
return ret;
}
-static void handle_modify_delete(struct merge_options *o,
+static int handle_modify_delete(struct merge_options *o,
const char *path,
struct object_id *o_oid, int o_mode,
struct object_id *a_oid, int a_mode,
struct object_id *b_oid, int b_mode)
{
- handle_change_delete(o,
- path,
- o_oid, o_mode,
- a_oid, a_mode,
- b_oid, b_mode,
- _("modify"), _("modified"));
+ return handle_change_delete(o,
+ path,
+ o_oid, o_mode,
+ a_oid, a_mode,
+ b_oid, b_mode,
+ _("modify"), _("modified"));
}
static int merge_content(struct merge_options *o,
@@ -1639,9 +1711,10 @@ static int merge_content(struct merge_options *o,
if (dir_in_way(path, !o->call_depth))
df_conflict_remains = 1;
}
- mfi = merge_file_special_markers(o, &one, &a, &b,
- o->branch1, path1,
- o->branch2, path2);
+ if (merge_file_special_markers(o, &one, &a, &b,
+ o->branch1, path1,
+ o->branch2, path2, &mfi))
+ return -1;
if (mfi.clean && !df_conflict_remains &&
oid_eq(&mfi.oid, a_oid) && mfi.mode == a_mode) {
@@ -1655,7 +1728,7 @@ static int merge_content(struct merge_options *o,
*/
path_renamed_outside_HEAD = !path2 || !strcmp(path, path2);
if (!path_renamed_outside_HEAD) {
- add_cacheinfo(mfi.mode, &mfi.oid, path,
+ add_cacheinfo(o, mfi.mode, &mfi.oid, path,
0, (!o->call_depth), 0);
return mfi.clean;
}
@@ -1668,7 +1741,8 @@ static int merge_content(struct merge_options *o,
output(o, 1, _("CONFLICT (%s): Merge conflict in %s"),
reason, path);
if (rename_conflict_info && !df_conflict_remains)
- update_stages(path, &one, &a, &b);
+ if (update_stages(o, path, &one, &a, &b))
+ return -1;
}
if (df_conflict_remains) {
@@ -1676,30 +1750,33 @@ static int merge_content(struct merge_options *o,
if (o->call_depth) {
remove_file_from_cache(path);
} else {
- if (!mfi.clean)
- update_stages(path, &one, &a, &b);
- else {
+ if (!mfi.clean) {
+ if (update_stages(o, path, &one, &a, &b))
+ return -1;
+ } else {
int file_from_stage2 = was_tracked(path);
struct diff_filespec merged;
oidcpy(&merged.oid, &mfi.oid);
merged.mode = mfi.mode;
- update_stages(path, NULL,
- file_from_stage2 ? &merged : NULL,
- file_from_stage2 ? NULL : &merged);
+ if (update_stages(o, path, NULL,
+ file_from_stage2 ? &merged : NULL,
+ file_from_stage2 ? NULL : &merged))
+ return -1;
}
}
new_path = unique_path(o, path, rename_conflict_info->branch1);
output(o, 1, _("Adding as %s instead"), new_path);
- update_file(o, 0, &mfi.oid, mfi.mode, new_path);
+ if (update_file(o, 0, &mfi.oid, mfi.mode, new_path)) {
+ free(new_path);
+ return -1;
+ }
free(new_path);
mfi.clean = 0;
- } else {
- update_file(o, mfi.clean, &mfi.oid, mfi.mode, path);
- }
+ } else if (update_file(o, mfi.clean, &mfi.oid, mfi.mode, path))
+ return -1;
return mfi.clean;
-
}
/* Per entry merge function */
@@ -1727,17 +1804,21 @@ static int process_entry(struct merge_options *o,
break;
case RENAME_DELETE:
clean_merge = 0;
- conflict_rename_delete(o, conflict_info->pair1,
- conflict_info->branch1,
- conflict_info->branch2);
+ if (conflict_rename_delete(o,
+ conflict_info->pair1,
+ conflict_info->branch1,
+ conflict_info->branch2))
+ clean_merge = -1;
break;
case RENAME_ONE_FILE_TO_TWO:
clean_merge = 0;
- conflict_rename_rename_1to2(o, conflict_info);
+ if (conflict_rename_rename_1to2(o, conflict_info))
+ clean_merge = -1;
break;
case RENAME_TWO_FILES_TO_ONE:
clean_merge = 0;
- conflict_rename_rename_2to1(o, conflict_info);
+ if (conflict_rename_rename_2to1(o, conflict_info))
+ clean_merge = -1;
break;
default:
entry->processed = 0;
@@ -1746,8 +1827,8 @@ static int process_entry(struct merge_options *o,
} else if (o_oid && (!a_oid || !b_oid)) {
/* Case A: Deleted in one */
if ((!a_oid && !b_oid) ||
- (!b_oid && blob_unchanged(o_oid, o_mode, a_oid, a_mode, normalize, path)) ||
- (!a_oid && blob_unchanged(o_oid, o_mode, b_oid, b_mode, normalize, path))) {
+ (!b_oid && blob_unchanged(o, o_oid, o_mode, a_oid, a_mode, normalize, path)) ||
+ (!a_oid && blob_unchanged(o, o_oid, o_mode, b_oid, b_mode, normalize, path))) {
/* Deleted in both or deleted in one and
* unchanged in the other */
if (a_oid)
@@ -1757,8 +1838,9 @@ static int process_entry(struct merge_options *o,
} else {
/* Modify/delete; deleted side may have put a directory in the way */
clean_merge = 0;
- handle_modify_delete(o, path, o_oid, o_mode,
- a_oid, a_mode, b_oid, b_mode);
+ if (handle_modify_delete(o, path, o_oid, o_mode,
+ a_oid, a_mode, b_oid, b_mode))
+ clean_merge = -1;
}
} else if ((!o_oid && a_oid && !b_oid) ||
(!o_oid && !a_oid && b_oid)) {
@@ -1790,14 +1872,16 @@ static int process_entry(struct merge_options *o,
output(o, 1, _("CONFLICT (%s): There is a directory with name %s in %s. "
"Adding %s as %s"),
conf, path, other_branch, path, new_path);
- update_file(o, 0, oid, mode, new_path);
- if (o->call_depth)
+ if (update_file(o, 0, oid, mode, new_path))
+ clean_merge = -1;
+ else if (o->call_depth)
remove_file_from_cache(path);
free(new_path);
} else {
output(o, 2, _("Adding %s"), path);
/* do not overwrite file if already present */
- update_file_flags(o, oid, mode, path, 1, !a_oid);
+ if (update_file_flags(o, oid, mode, path, 1, !a_oid))
+ clean_merge = -1;
}
} else if (a_oid && b_oid) {
/* Case C: Added in both (check for same permissions) and */
@@ -1812,7 +1896,7 @@ static int process_entry(struct merge_options *o,
*/
remove_file(o, 1, path, !a_mode);
} else
- die(_("Fatal merge failure, shouldn't happen."));
+ die("BUG: fatal merge failure, shouldn't happen.");
return clean_merge;
}
@@ -1840,11 +1924,10 @@ int merge_trees(struct merge_options *o,
if (code != 0) {
if (show(o, 4) || o->call_depth)
- die(_("merging of trees %s and %s failed"),
+ err(o, _("merging of trees %s and %s failed"),
oid_to_hex(&head->object.oid),
oid_to_hex(&merge->object.oid));
- else
- exit(128);
+ return -1;
}
if (unmerged_cache()) {
@@ -1860,17 +1943,23 @@ int merge_trees(struct merge_options *o,
re_head = get_renames(o, head, common, head, merge, entries);
re_merge = get_renames(o, merge, common, head, merge, entries);
clean = process_renames(o, re_head, re_merge);
+ if (clean < 0)
+ return clean;
for (i = entries->nr-1; 0 <= i; i--) {
const char *path = entries->items[i].string;
struct stage_data *e = entries->items[i].util;
- if (!e->processed
- && !process_entry(o, path, e))
- clean = 0;
+ if (!e->processed) {
+ int ret = process_entry(o, path, e);
+ if (!ret)
+ clean = 0;
+ else if (ret < 0)
+ return ret;
+ }
}
for (i = 0; i < entries->nr; i++) {
struct stage_data *e = entries->items[i].util;
if (!e->processed)
- die(_("Unprocessed path??? %s"),
+ die("BUG: unprocessed path??? %s",
entries->items[i].string);
}
@@ -1885,8 +1974,8 @@ int merge_trees(struct merge_options *o,
else
clean = 1;
- if (o->call_depth)
- *result = write_tree_from_memory(o);
+ if (o->call_depth && !(*result = write_tree_from_memory(o)))
+ return -1;
return clean;
}
@@ -1952,23 +2041,25 @@ int merge_recursive(struct merge_options *o,
/*
* When the merge fails, the result contains files
* with conflict markers. The cleanness flag is
- * ignored, it was never actually used, as result of
- * merge_trees has always overwritten it: the committed
- * "conflicts" were already resolved.
+ * ignored (unless indicating an error), it was never
+ * actually used, as result of merge_trees has always
+ * overwritten it: the committed "conflicts" were
+ * already resolved.
*/
discard_cache();
saved_b1 = o->branch1;
saved_b2 = o->branch2;
o->branch1 = "Temporary merge branch 1";
o->branch2 = "Temporary merge branch 2";
- merge_recursive(o, merged_common_ancestors, iter->item,
- NULL, &merged_common_ancestors);
+ if (merge_recursive(o, merged_common_ancestors, iter->item,
+ NULL, &merged_common_ancestors) < 0)
+ return -1;
o->branch1 = saved_b1;
o->branch2 = saved_b2;
o->call_depth--;
if (!merged_common_ancestors)
- die(_("merge returned no commit"));
+ return err(o, _("merge returned no commit"));
}
discard_cache();
@@ -1978,6 +2069,10 @@ int merge_recursive(struct merge_options *o,
o->ancestor = "merged common ancestors";
clean = merge_trees(o, h1->tree, h2->tree, merged_common_ancestors->tree,
&mrtree);
+ if (clean < 0) {
+ flush_output(o);
+ return clean;
+ }
if (o->call_depth) {
*result = make_virtual_commit(mrtree, "merged tree");
@@ -1985,6 +2080,8 @@ int merge_recursive(struct merge_options *o,
commit_list_insert(h2, &(*result)->parents->next);
}
flush_output(o);
+ if (!o->call_depth && o->buffer_output < 2)
+ strbuf_release(&o->obuf);
if (show(o, 2))
diff_warn_rename_limit("merge.renamelimit",
o->needed_rename_limit, 0);
@@ -2025,7 +2122,7 @@ int merge_recursive_generic(struct merge_options *o,
for (i = 0; i < num_base_list; ++i) {
struct commit *base;
if (!(base = get_ref(base_list[i], oid_to_hex(base_list[i]))))
- return error(_("Could not parse object '%s'"),
+ return err(o, _("Could not parse object '%s'"),
oid_to_hex(base_list[i]));
commit_list_insert(base, &ca);
}
@@ -2034,9 +2131,12 @@ int merge_recursive_generic(struct merge_options *o,
hold_locked_index(lock, 1);
clean = merge_recursive(o, head_commit, next_commit, ca,
result);
+ if (clean < 0)
+ return clean;
+
if (active_cache_changed &&
write_locked_index(&the_index, lock, COMMIT_LOCK))
- return error(_("Unable to write index."));
+ return err(o, _("Unable to write index."));
return clean ? 0 : 1;
}
diff --git a/merge-recursive.h b/merge-recursive.h
index d415724..735343b 100644
--- a/merge-recursive.h
+++ b/merge-recursive.h
@@ -13,7 +13,7 @@ struct merge_options {
MERGE_RECURSIVE_THEIRS
} recursive_variant;
const char *subtree_shift;
- unsigned buffer_output : 1;
+ unsigned buffer_output; /* 1: output at end, 2: keep buffered */
unsigned renormalize : 1;
long xdl_opts;
int verbosity;
diff --git a/sequencer.c b/sequencer.c
index 7b1eb14..2e9c7d0 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -293,6 +293,9 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
clean = merge_trees(&o,
head_tree,
next_tree, base_tree, &result);
+ strbuf_release(&o.obuf);
+ if (clean < 0)
+ return clean;
if (active_cache_changed &&
write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
@@ -559,6 +562,8 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
if (!opts->strategy || !strcmp(opts->strategy, "recursive") || opts->action == REPLAY_REVERT) {
res = do_recursive_merge(base, next, base_label, next_label,
head, &msgbuf, opts);
+ if (res < 0)
+ return res;
write_message(&msgbuf, git_path_merge_msg());
} else {
struct commit_list *common = NULL;
diff --git a/sha1_file.c b/sha1_file.c
index 3066b5f..02940f1 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -791,7 +791,7 @@ void close_all_packs(void)
for (p = packed_git; p; p = p->next)
if (p->do_not_close)
- die("BUG! Want to close pack marked 'do-not-close'");
+ die("BUG: want to close pack marked 'do-not-close'");
else
close_pack(p);
}
@@ -2306,7 +2306,7 @@ void *unpack_entry(struct packed_git *p, off_t obj_offset,
case OBJ_OFS_DELTA:
case OBJ_REF_DELTA:
if (data)
- die("BUG in unpack_entry: left loop at a valid delta");
+ die("BUG: unpack_entry: left loop at a valid delta");
break;
case OBJ_COMMIT:
case OBJ_TREE:
diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh
index 37ebbcf..6ad37b5 100755
--- a/t/t5520-pull.sh
+++ b/t/t5520-pull.sh
@@ -255,6 +255,38 @@ test_expect_success '--rebase' '
test new = "$(git show HEAD:file2)"
'
+test_expect_success '--rebase with conflicts shows advice' '
+ test_when_finished "git rebase --abort; git checkout -f to-rebase" &&
+ git checkout -b seq &&
+ test_seq 5 >seq.txt &&
+ git add seq.txt &&
+ test_tick &&
+ git commit -m "Add seq.txt" &&
+ echo 6 >>seq.txt &&
+ test_tick &&
+ git commit -m "Append to seq.txt" seq.txt &&
+ git checkout -b with-conflicts HEAD^ &&
+ echo conflicting >>seq.txt &&
+ test_tick &&
+ git commit -m "Create conflict" seq.txt &&
+ test_must_fail git pull --rebase . seq 2>err >out &&
+ grep "When you have resolved this problem" out
+'
+
+test_expect_success 'failed --rebase shows advice' '
+ test_when_finished "git rebase --abort; git checkout -f to-rebase" &&
+ git checkout -b diverging &&
+ test_commit attributes .gitattributes "* text=auto" attrs &&
+ sha1="$(printf "1\\r\\n" | git hash-object -w --stdin)" &&
+ git update-index --cacheinfo 0644 $sha1 file &&
+ git commit -m v1-with-cr &&
+ # force checkout because `git reset --hard` will not leave clean `file`
+ git checkout -f -b fails-to-rebase HEAD^ &&
+ test_commit v2-without-cr file "2" file2-lf &&
+ test_must_fail git pull --rebase . diverging 2>err >out &&
+ grep "When you have resolved this problem" out
+'
+
test_expect_success '--rebase fails with multiple branches' '
git reset --hard before-rebase &&
test_must_fail git pull --rebase . copy master 2>err &&
diff --git a/trailer.c b/trailer.c
index 8e48a5c..c6ea9ac 100644
--- a/trailer.c
+++ b/trailer.c
@@ -562,7 +562,7 @@ static int git_trailer_config(const char *conf_key, const char *value, void *cb)
warning(_("unknown value '%s' for key '%s'"), value, conf_key);
break;
default:
- die("internal bug in trailer.c");
+ die("BUG: trailer.c: unhandled type %d", type);
}
return 0;
}
diff --git a/transport.c b/transport.c
index 4ba48b0..c5772a1 100644
--- a/transport.c
+++ b/transport.c
@@ -567,7 +567,7 @@ void transport_take_over(struct transport *transport,
struct git_transport_data *data;
if (!transport->smart_options)
- die("Bug detected: Taking over transport requires non-NULL "
+ die("BUG: taking over transport requires non-NULL "
"smart_options field.");
data = xcalloc(1, sizeof(*data));
diff --git a/wt-status.c b/wt-status.c
index 3175ec6..6225a2d 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -263,7 +263,7 @@ static const char *wt_status_unmerged_status_string(int stagemask)
case 7:
return _("both modified:");
default:
- die("bug: unhandled unmerged status %x", stagemask);
+ die("BUG: unhandled unmerged status %x", stagemask);
}
}
@@ -388,7 +388,7 @@ static void wt_status_print_change_data(struct wt_status *s,
status_printf(s, color(WT_STATUS_HEADER, s), "\t");
what = wt_status_diff_status_string(status);
if (!what)
- die("bug: unhandled diff status %c", status);
+ die("BUG: unhandled diff status %c", status);
len = label_width - utf8_strwidth(what);
assert(len >= 0);
if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)