struct commit *commit = alloc_commit_node();
set_merge_remote_desc(commit, comment, (struct object *)commit);
- commit->tree = tree;
+ commit->maybe_tree = tree;
commit->object.parsed = 1;
return commit;
}
!(empty_ok && is_empty_dir(path));
}
+/*
+ * Returns whether path was tracked in the index before the merge started,
+ * and its oid and mode match the specified values
+ */
+static int was_tracked_and_matches(struct merge_options *o, const char *path,
+ const struct object_id *oid, unsigned mode)
+{
+ int pos = index_name_pos(&o->orig_index, path, strlen(path));
+ struct cache_entry *ce;
+
+ if (0 > pos)
+ /* we were not tracking this path before the merge */
+ return 0;
+
+ /* See if the file we were tracking before matches */
+ ce = o->orig_index.cache[pos];
+ return (oid_eq(&ce->oid, oid) && ce->ce_mode == mode);
+}
+
/*
* Returns whether path was tracked in the index before the merge started
*/
}
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,
- struct merge_file_info *result)
+ const struct diff_filespec *one,
+ const struct diff_filespec *a,
+ const struct diff_filespec *b,
+ const char *filename,
+ const char *branch1,
+ const char *branch2,
+ struct merge_file_info *result)
{
result->merge = 0;
result->clean = 1;
die("BUG: unsupported object type in the tree");
}
+ if (result->merge)
+ output(o, 2, _("Auto-merging %s"), filename);
+
return 0;
}
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,
- struct merge_file_info *mfi)
+ const struct diff_filespec *one,
+ const struct diff_filespec *a,
+ const struct diff_filespec *b,
+ const char *target_filename,
+ const char *branch1,
+ const char *filename1,
+ const char *branch2,
+ const char *filename2,
+ struct merge_file_info *mfi)
{
char *side1 = NULL;
char *side2 = NULL;
if (filename2)
side2 = xstrfmt("%s:%s", branch2, filename2);
- ret = merge_file_1(o, one, a, b,
+ ret = merge_file_1(o, one, a, b, target_filename,
side1 ? side1 : branch1,
side2 ? side2 : branch2, mfi);
+
free(side1);
free(side2);
return ret;
}
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,
- struct merge_file_info *mfi)
+ 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,
+ struct merge_file_info *mfi)
{
struct diff_filespec one, a, b;
a.mode = a_mode;
oidcpy(&b.oid, b_oid);
b.mode = b_mode;
- return merge_file_1(o, &one, &a, &b, branch1, branch2, mfi);
+ return merge_file_1(o, &one, &a, &b, path, branch1, branch2, mfi);
}
static int conflict_rename_dir(struct merge_options *o,
struct diff_filespec *c1 = ci->pair1->two;
struct diff_filespec *c2 = ci->pair2->two;
char *path = c1->path; /* == c2->path */
+ char *path_side_1_desc;
+ char *path_side_2_desc;
struct merge_file_info mfi_c1;
struct merge_file_info mfi_c2;
int ret;
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));
+ path_side_1_desc = xstrfmt("%s (was %s)", path, a->path);
+ path_side_2_desc = xstrfmt("%s (was %s)", path, b->path);
if (merge_file_special_markers(o, a, c1, &ci->ren1_other,
+ path_side_1_desc,
o->branch1, c1->path,
o->branch2, ci->ren1_other.path, &mfi_c1) ||
merge_file_special_markers(o, b, &ci->ren2_other, c2,
+ path_side_2_desc,
o->branch1, ci->ren2_other.path,
o->branch2, c2->path, &mfi_c2))
return -1;
+ free(path_side_1_desc);
+ free(path_side_2_desc);
if (o->call_depth) {
/*
S_ISGITLINK(pair1->two->mode)))
df_conflict_remains = 1;
}
- if (merge_file_special_markers(o, &one, &a, &b,
+ if (merge_file_special_markers(o, &one, &a, &b, path,
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) {
- int path_renamed_outside_HEAD;
+ /*
+ * We can skip updating the working tree file iff:
+ * a) The merge is clean
+ * b) The merge matches what was in HEAD (content, mode, pathname)
+ * c) The target path is usable (i.e. not involved in D/F conflict)
+ */
+ if (mfi.clean &&
+ was_tracked_and_matches(o, path, &mfi.oid, mfi.mode) &&
+ !df_conflict_remains) {
output(o, 3, _("Skipped %s (merged same as existing)"), path);
- /*
- * The content merge resulted in the same file contents we
- * already had. We can return early if those file contents
- * are recorded at the correct path (which may not be true
- * if the merge involves a rename).
- */
- path_renamed_outside_HEAD = !path2 || !strcmp(path, path2);
- if (!path_renamed_outside_HEAD) {
- if (add_cacheinfo(o, mfi.mode, &mfi.oid, path,
- 0, (!o->call_depth && !is_dirty), 0))
- return -1;
- return mfi.clean;
- }
- } else
- output(o, 2, _("Auto-merging %s"), path);
+ if (add_cacheinfo(o, mfi.mode, &mfi.oid, path,
+ 0, (!o->call_depth && !is_dirty), 0))
+ return -1;
+ return mfi.clean;
+ }
if (!mfi.clean) {
if (S_ISGITLINK(mfi.mode))
read_cache();
o->ancestor = "merged common ancestors";
- clean = merge_trees(o, h1->tree, h2->tree, merged_common_ancestors->tree,
+ clean = merge_trees(o, get_commit_tree(h1), get_commit_tree(h2),
+ get_commit_tree(merged_common_ancestors),
&mrtree);
if (clean < 0) {
flush_output(o);