const char *branch2;
struct stage_data *dst_entry1;
struct stage_data *dst_entry2;
+ struct diff_filespec ren1_other;
+ struct diff_filespec ren2_other;
};
/*
const char *branch1,
const char *branch2,
struct stage_data *dst_entry1,
- struct stage_data *dst_entry2)
+ struct stage_data *dst_entry2,
+ struct merge_options *o,
+ struct stage_data *src_entry1,
+ struct stage_data *src_entry2)
{
struct rename_conflict_info *ci = xcalloc(1, sizeof(struct rename_conflict_info));
ci->rename_type = rename_type;
ci->pair2 = pair2;
dst_entry2->rename_conflict_info = ci;
}
+
+ if (rename_type == RENAME_TWO_FILES_TO_ONE) {
+ /*
+ * For each rename, there could have been
+ * modifications on the side of history where that
+ * file was not renamed.
+ */
+ int ostage1 = o->branch1 == branch1 ? 3 : 2;
+ int ostage2 = ostage1 ^ 1;
+
+ ci->ren1_other.path = pair1->one->path;
+ hashcpy(ci->ren1_other.sha1, src_entry1->stages[ostage1].sha);
+ ci->ren1_other.mode = src_entry1->stages[ostage1].mode;
+
+ ci->ren2_other.path = pair2->one->path;
+ hashcpy(ci->ren2_other.sha1, src_entry2->stages[ostage2].sha);
+ ci->ren2_other.mode = src_entry2->stages[ostage2].mode;
+ }
}
static int show(struct merge_options *o, int v)
return result;
}
+static struct merge_file_info
+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)
+{
+ char *side1 = NULL;
+ char *side2 = NULL;
+ struct merge_file_info mfi;
+
+ if (filename1) {
+ side1 = xmalloc(strlen(branch1) + strlen(filename1) + 2);
+ sprintf(side1, "%s:%s", branch1, filename1);
+ }
+ if (filename2) {
+ side2 = xmalloc(strlen(branch2) + strlen(filename2) + 2);
+ sprintf(side2, "%s:%s", branch2, filename2);
+ }
+
+ mfi = merge_file_1(o, one, a, b,
+ side1 ? side1 : branch1, side2 ? side2 : branch2);
+ free(side1);
+ free(side2);
+ return mfi;
+}
+
static struct merge_file_info merge_file(struct merge_options *o,
const char *path,
const unsigned char *o_sha, int o_mode,
return merge_file_1(o, &one, &a, &b, branch1, branch2);
}
+static void handle_change_delete(struct merge_options *o,
+ const char *path,
+ const unsigned char *o_sha, int o_mode,
+ const unsigned char *a_sha, int a_mode,
+ const unsigned char *b_sha, int b_mode,
+ const char *change, const char *change_past)
+{
+ char *renamed = NULL;
+ if (dir_in_way(path, !o->call_depth)) {
+ renamed = unique_path(o, path, a_sha ? o->branch1 : o->branch2);
+ }
+
+ if (o->call_depth) {
+ /*
+ * We cannot arbitrarily accept either a_sha or b_sha as
+ * 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_sha, o_mode, renamed ? renamed : path);
+ } else if (!a_sha) {
+ output(o, 1, "CONFLICT (%s/delete): %s deleted in %s "
+ "and %s in %s. Version %s of %s left in tree%s%s.",
+ change, path, o->branch1,
+ change_past, o->branch2, o->branch2, path,
+ NULL == renamed ? "" : " at ",
+ NULL == renamed ? "" : renamed);
+ update_file(o, 0, b_sha, b_mode, renamed ? renamed : path);
+ } else {
+ output(o, 1, "CONFLICT (%s/delete): %s deleted in %s "
+ "and %s in %s. Version %s of %s left in tree%s%s.",
+ change, path, o->branch2,
+ change_past, o->branch1, o->branch1, path,
+ NULL == renamed ? "" : " at ",
+ NULL == renamed ? "" : renamed);
+ update_file(o, 0, a_sha, a_mode, renamed ? renamed : path);
+ }
+ free(renamed);
+}
+
static void conflict_rename_delete(struct merge_options *o,
struct diff_filepair *pair,
const char *rename_branch,
const char *other_branch)
{
- char *dest_name = pair->two->path;
- int df_conflict = 0;
+ const struct diff_filespec *orig = pair->one;
+ const struct diff_filespec *dest = pair->two;
+ const char *path;
+ const unsigned char *a_sha = NULL;
+ const unsigned char *b_sha = NULL;
+ int a_mode = 0;
+ int b_mode = 0;
+
+ if (rename_branch == o->branch1) {
+ a_sha = dest->sha1;
+ a_mode = dest->mode;
+ } else {
+ b_sha = dest->sha1;
+ b_mode = dest->mode;
+ }
- output(o, 1, "CONFLICT (rename/delete): Rename %s->%s in %s "
- "and deleted in %s",
- pair->one->path, pair->two->path, rename_branch,
- other_branch);
- if (!o->call_depth)
- update_stages(dest_name, NULL,
- rename_branch == o->branch1 ? pair->two : NULL,
- rename_branch == o->branch1 ? NULL : pair->two);
- if (dir_in_way(dest_name, !o->call_depth)) {
- dest_name = unique_path(o, dest_name, rename_branch);
- df_conflict = 1;
+ if (o->call_depth) {
+ remove_file_from_cache(dest->path);
+ path = orig->path;
+ } else {
+ path = dest->path;
+ update_stages(dest->path, NULL,
+ rename_branch == o->branch1 ? dest : NULL,
+ rename_branch == o->branch1 ? NULL : dest);
}
- update_file(o, 0, pair->two->sha1, pair->two->mode, dest_name);
- if (df_conflict)
- free(dest_name);
+
+ handle_change_delete(o,
+ path,
+ orig->sha1, orig->mode,
+ a_sha, a_mode,
+ b_sha, b_mode,
+ "rename", "renamed");
+}
+
+static struct diff_filespec *filespec_from_entry(struct diff_filespec *target,
+ struct stage_data *entry,
+ int stage)
+{
+ unsigned char *sha = entry->stages[stage].sha;
+ unsigned mode = entry->stages[stage].mode;
+ if (mode == 0 || is_null_sha1(sha))
+ return NULL;
+ hashcpy(target->sha1, sha);
+ target->mode = mode;
+ return target;
+}
+
+static void handle_file(struct merge_options *o,
+ struct diff_filespec *rename,
+ int stage,
+ struct rename_conflict_info *ci)
+{
+ char *dst_name = rename->path;
+ struct stage_data *dst_entry;
+ const char *cur_branch, *other_branch;
+ struct diff_filespec other;
+ struct diff_filespec *add;
+
+ if (stage == 2) {
+ dst_entry = ci->dst_entry1;
+ cur_branch = ci->branch1;
+ other_branch = ci->branch2;
+ } else {
+ dst_entry = ci->dst_entry2;
+ cur_branch = ci->branch2;
+ other_branch = ci->branch1;
+ }
+
+ add = filespec_from_entry(&other, dst_entry, stage ^ 1);
+ if (stage == 2)
+ update_stages(rename->path, NULL, rename, add);
+ else
+ update_stages(rename->path, NULL, add, rename);
+
+ if (add) {
+ char *add_name = unique_path(o, rename->path, other_branch);
+ update_file(o, 0, add->sha1, add->mode, add_name);
+
+ remove_file(o, 0, rename->path, 0);
+ dst_name = unique_path(o, rename->path, cur_branch);
+ } else {
+ if (dir_in_way(rename->path, !o->call_depth)) {
+ dst_name = unique_path(o, rename->path, cur_branch);
+ output(o, 1, "%s is a directory in %s adding as %s instead",
+ rename->path, other_branch, dst_name);
+ }
+ }
+ update_file(o, 0, rename->sha1, rename->mode, dst_name);
+
+ if (dst_name != rename->path)
+ free(dst_name);
}
static void conflict_rename_rename_1to2(struct merge_options *o,
struct diff_filespec *one = ci->pair1->one;
struct diff_filespec *a = ci->pair1->two;
struct diff_filespec *b = ci->pair2->two;
- const char *dst_name_a = a->path;
- const char *dst_name_b = b->path;
- char *del[2];
- int delp = 0;
output(o, 1, "CONFLICT (rename/rename): "
"Rename \"%s\"->\"%s\" in branch \"%s\" "
one->path, a->path, ci->branch1,
one->path, b->path, ci->branch2,
o->call_depth ? " (left unresolved)" : "");
- if (dir_in_way(a->path, !o->call_depth)) {
- dst_name_a = del[delp++] = unique_path(o, a->path, ci->branch1);
- output(o, 1, "%s is a directory in %s adding as %s instead",
- a->path, ci->branch2, dst_name_a);
- }
- if (dir_in_way(b->path, !o->call_depth)) {
- dst_name_b = del[delp++] = unique_path(o, b->path, ci->branch2);
- output(o, 1, "%s is a directory in %s adding as %s instead",
- b->path, ci->branch1, dst_name_b);
- }
if (o->call_depth) {
struct merge_file_info mfi;
mfi = merge_file(o, one->path,
remove_file_from_cache(a->path);
remove_file_from_cache(b->path);
} else {
- update_stages(a->path, NULL, a, NULL);
- update_stages(b->path, NULL, NULL, b);
-
- update_file(o, 0, a->sha1, a->mode, dst_name_a);
- update_file(o, 0, b->sha1, b->mode, dst_name_b);
+ handle_file(o, a, 2, ci);
+ handle_file(o, b, 3, ci);
}
- while (delp--)
- free(del[delp]);
}
static void conflict_rename_rename_2to1(struct merge_options *o,
struct diff_filespec *c1 = ci->pair1->two;
struct diff_filespec *c2 = ci->pair2->two;
char *path = c1->path; /* == c2->path */
+ struct merge_file_info mfi_c1;
+ struct merge_file_info mfi_c2;
output(o, 1, "CONFLICT (rename/rename): "
"Rename %s->%s in %s. "
remove_file(o, 1, a->path, would_lose_untracked(a->path));
remove_file(o, 1, b->path, 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 (o->call_depth) {
- struct merge_file_info mfi;
- mfi = merge_file(o, path, null_sha1, 0,
- c1->sha1, c1->mode,
- c2->sha1, c2->mode,
- ci->branch1, ci->branch2);
- output(o, 1, "Adding merged %s", path);
- update_file(o, 0, mfi.sha, mfi.mode, path);
+ /*
+ * If mfi_c1.clean && mfi_c2.clean, then it might make
+ * sense to do a two-way merge of those results. But, I
+ * think in all cases, it makes sense to have the virtual
+ * merge base just undo the renames; they can be detected
+ * again later for the non-recursive merge.
+ */
+ remove_file(o, 0, path, 0);
+ update_file(o, 0, mfi_c1.sha, mfi_c1.mode, a->path);
+ update_file(o, 0, mfi_c2.sha, 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, c1->sha1, c1->mode, new_path1);
- update_file(o, 0, c2->sha1, c2->mode, new_path2);
+ update_file(o, 0, mfi_c1.sha, mfi_c1.mode, new_path1);
+ update_file(o, 0, mfi_c2.sha, mfi_c2.mode, new_path2);
free(new_path2);
free(new_path1);
}
branch1,
branch2,
ren1->dst_entry,
- ren2->dst_entry);
+ ren2->dst_entry,
+ o,
+ NULL,
+ NULL);
} else if ((lookup = string_list_lookup(renames2Dst, ren1_dst))) {
/* Two different files renamed to the same thing */
char *ren2_dst;
branch1,
branch2,
ren1->dst_entry,
- ren2->dst_entry);
+ ren2->dst_entry,
+ o,
+ ren1->src_entry,
+ ren2->src_entry);
+
} else {
/* Renamed in 1, maybe changed in 2 */
/* we only use sha1 and mode of these */
branch1,
branch2,
ren1->dst_entry,
+ NULL,
+ o,
+ NULL,
NULL);
} else if ((dst_other.mode == ren1->pair->two->mode) &&
sha_eq(dst_other.sha1, ren1->pair->two->sha1)) {
branch1,
NULL,
ren1->dst_entry,
+ NULL,
+ o,
+ NULL,
NULL);
}
}
return ret;
}
-static void handle_delete_modify(struct merge_options *o,
+static void handle_modify_delete(struct merge_options *o,
const char *path,
unsigned char *o_sha, int o_mode,
unsigned char *a_sha, int a_mode,
unsigned char *b_sha, int b_mode)
{
- char *renamed = NULL;
- if (dir_in_way(path, !o->call_depth)) {
- renamed = unique_path(o, path, a_sha ? o->branch1 : o->branch2);
- }
-
- if (o->call_depth) {
- /*
- * We cannot arbitrarily accept either a_sha or b_sha as
- * 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_sha, o_mode, renamed ? renamed : path);
- } else if (!a_sha) {
- output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
- "and modified in %s. Version %s of %s left in tree%s%s.",
- path, o->branch1,
- o->branch2, o->branch2, path,
- NULL == renamed ? "" : " at ",
- NULL == renamed ? "" : renamed);
- update_file(o, 0, b_sha, b_mode, renamed ? renamed : path);
- } else {
- output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
- "and modified in %s. Version %s of %s left in tree%s%s.",
- path, o->branch2,
- o->branch1, o->branch1, path,
- NULL == renamed ? "" : " at ",
- NULL == renamed ? "" : renamed);
- update_file(o, 0, a_sha, a_mode, renamed ? renamed : path);
- }
- free(renamed);
-
+ handle_change_delete(o,
+ path,
+ o_sha, o_mode,
+ a_sha, a_mode,
+ b_sha, b_mode,
+ "modify", "modified");
}
static int merge_content(struct merge_options *o,
struct rename_conflict_info *rename_conflict_info)
{
const char *reason = "content";
- char *side1 = NULL, *side2 = NULL;
const char *path1 = NULL, *path2 = NULL;
struct merge_file_info mfi;
struct diff_filespec one, a, b;
path2 = (rename_conflict_info->pair2 ||
o->branch2 == rename_conflict_info->branch1) ?
pair1->two->path : pair1->one->path;
- side1 = xmalloc(strlen(o->branch1) + strlen(path1) + 2);
- side2 = xmalloc(strlen(o->branch2) + strlen(path2) + 2);
- sprintf(side1, "%s:%s", o->branch1, path1);
- sprintf(side2, "%s:%s", o->branch2, path2);
if (dir_in_way(path, !o->call_depth))
df_conflict_remains = 1;
}
- mfi = merge_file_1(o, &one, &a, &b,
- side1 ? side1 : o->branch1, side2 ? side2 : o->branch2);
- free(side1);
- free(side2);
+ mfi = merge_file_special_markers(o, &one, &a, &b,
+ o->branch1, path1,
+ o->branch2, path2);
if (mfi.clean && !df_conflict_remains &&
sha_eq(mfi.sha, a_sha) && mfi.mode == a_mode) {
} else {
/* Modify/delete; deleted side may have put a directory in the way */
clean_merge = 0;
- handle_delete_modify(o, path, o_sha, o_mode,
+ handle_modify_delete(o, path, o_sha, o_mode,
a_sha, a_mode, b_sha, b_mode);
}
} else if ((!o_sha && a_sha && !b_sha) ||