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-rw-r--r--merge-recursive.c188
1 files changed, 57 insertions, 131 deletions
diff --git a/merge-recursive.c b/merge-recursive.c
index c6f177896f..29a5390b93 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -116,7 +116,6 @@ static inline void setup_rename_df_conflict_info(enum rename_type rename_type,
ci->dst_entry2 = dst_entry2;
ci->pair2 = pair2;
dst_entry2->rename_df_conflict_info = ci;
- dst_entry2->processed = 0;
}
}
@@ -365,20 +364,17 @@ static void record_df_conflict_files(struct merge_options *o,
struct string_list *entries)
{
/* If there is a D/F conflict and the file for such a conflict
- * currently exist in the working copy, we want to allow it to
- * be removed to make room for the corresponding directory if
- * needed. The files underneath the directories of such D/F
- * conflicts will be handled in process_entry(), while the
- * files of such D/F conflicts will be processed later in
- * process_df_entry(). If the corresponding directory ends up
- * being removed by the merge, then no additional work needs
- * to be done by process_df_entry() for the conflicting file.
- * If the directory needs to be written to the working copy,
- * then the conflicting file will simply be removed (e.g. in
- * make_room_for_path). If the directory is written to the
- * working copy but the file also has a conflict that needs to
- * be resolved, then process_df_entry() will reinstate the
- * file with a new unique name.
+ * currently exist in the working copy, we want to allow it to be
+ * removed to make room for the corresponding directory if needed.
+ * The files underneath the directories of such D/F conflicts will
+ * be processed before the corresponding file involved in the D/F
+ * conflict. If the D/F directory ends up being removed by the
+ * merge, then we won't have to touch the D/F file. If the D/F
+ * directory needs to be written to the working copy, then the D/F
+ * file will simply be removed (in make_room_for_path()) to make
+ * room for the necessary paths. Note that if both the directory
+ * and the file need to be present, then the D/F file will be
+ * reinstated with a new unique name at the time it is processed.
*/
const char *last_file = NULL;
int last_len = 0;
@@ -1323,17 +1319,17 @@ static void handle_delete_modify(struct merge_options *o,
"and modified in %s. Version %s of %s left in tree%s%s.",
path, o->branch1,
o->branch2, o->branch2, path,
- path == new_path ? "" : " at ",
- path == new_path ? "" : new_path);
- update_file(o, 0, b_sha, b_mode, new_path);
+ NULL == new_path ? "" : " at ",
+ NULL == new_path ? "" : new_path);
+ update_file(o, 0, b_sha, b_mode, new_path ? new_path : 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,
- path == new_path ? "" : " at ",
- path == new_path ? "" : new_path);
- update_file(o, 0, a_sha, a_mode, new_path);
+ NULL == new_path ? "" : " at ",
+ NULL == new_path ? "" : new_path);
+ update_file(o, 0, a_sha, a_mode, new_path ? new_path : path);
}
}
@@ -1431,93 +1427,6 @@ static int process_entry(struct merge_options *o,
unsigned char *a_sha = stage_sha(entry->stages[2].sha, a_mode);
unsigned char *b_sha = stage_sha(entry->stages[3].sha, b_mode);
- if (entry->rename_df_conflict_info)
- return 1; /* Such cases are handled elsewhere. */
-
- entry->processed = 1;
- if (o_sha && (!a_sha || !b_sha)) {
- /* Case A: Deleted in one */
- if ((!a_sha && !b_sha) ||
- (!b_sha && blob_unchanged(o_sha, a_sha, normalize, path)) ||
- (!a_sha && blob_unchanged(o_sha, b_sha, normalize, path))) {
- /* Deleted in both or deleted in one and
- * unchanged in the other */
- if (a_sha)
- output(o, 2, "Removing %s", path);
- /* do not touch working file if it did not exist */
- remove_file(o, 1, path, !a_sha);
- } else if (dir_in_way(path, 0 /*check_wc*/)) {
- entry->processed = 0;
- return 1; /* Assume clean until processed */
- } else {
- /* Deleted in one and changed in the other */
- clean_merge = 0;
- handle_delete_modify(o, path, path,
- a_sha, a_mode, b_sha, b_mode);
- }
-
- } else if ((!o_sha && a_sha && !b_sha) ||
- (!o_sha && !a_sha && b_sha)) {
- /* Case B: Added in one. */
- unsigned mode;
- const unsigned char *sha;
-
- if (a_sha) {
- mode = a_mode;
- sha = a_sha;
- } else {
- mode = b_mode;
- sha = b_sha;
- }
- if (dir_in_way(path, 0 /*check_wc*/)) {
- /* Handle D->F conflicts after all subfiles */
- entry->processed = 0;
- return 1; /* Assume clean until processed */
- } else {
- output(o, 2, "Adding %s", path);
- update_file(o, 1, sha, mode, path);
- }
- } else if (a_sha && b_sha) {
- /* Case C: Added in both (check for same permissions) and */
- /* case D: Modified in both, but differently. */
- clean_merge = merge_content(o, entry->involved_in_rename, path,
- o_sha, o_mode, a_sha, a_mode, b_sha, b_mode,
- NULL);
- } else if (!o_sha && !a_sha && !b_sha) {
- /*
- * this entry was deleted altogether. a_mode == 0 means
- * we had that path and want to actively remove it.
- */
- remove_file(o, 1, path, !a_mode);
- } else
- die("Fatal merge failure, shouldn't happen.");
-
- return clean_merge;
-}
-
-/*
- * Per entry merge function for D/F (and/or rename) conflicts. In the
- * cases we can cleanly resolve D/F conflicts, process_entry() can
- * clean out all the files below the directory for us. All D/F
- * conflict cases must be handled here at the end to make sure any
- * directories that can be cleaned out, are.
- *
- * Some rename conflicts may also be handled here that don't necessarily
- * involve D/F conflicts, since the code to handle them is generic enough
- * to handle those rename conflicts with or without D/F conflicts also
- * being involved.
- */
-static int process_df_entry(struct merge_options *o,
- const char *path, struct stage_data *entry)
-{
- int clean_merge = 1;
- unsigned o_mode = entry->stages[1].mode;
- unsigned a_mode = entry->stages[2].mode;
- unsigned b_mode = entry->stages[3].mode;
- unsigned char *o_sha = stage_sha(entry->stages[1].sha, o_mode);
- unsigned char *a_sha = stage_sha(entry->stages[2].sha, a_mode);
- unsigned char *b_sha = stage_sha(entry->stages[3].sha, b_mode);
-
entry->processed = 1;
if (entry->rename_df_conflict_info) {
struct rename_df_conflict_info *conflict_info = entry->rename_df_conflict_info;
@@ -1552,24 +1461,38 @@ static int process_df_entry(struct merge_options *o,
conflict_info->branch1,
conflict_info->pair2,
conflict_info->branch2);
- conflict_info->dst_entry2->processed = 1;
break;
default:
entry->processed = 0;
break;
}
} else if (o_sha && (!a_sha || !b_sha)) {
- /* Modify/delete; deleted side may have put a directory in the way */
- char *renamed = NULL;
- if (dir_in_way(path, !o->call_depth)) {
- renamed = unique_path(o, path, a_sha ? o->branch1 : o->branch2);
+ /* Case A: Deleted in one */
+ if ((!a_sha && !b_sha) ||
+ (!b_sha && blob_unchanged(o_sha, a_sha, normalize, path)) ||
+ (!a_sha && blob_unchanged(o_sha, b_sha, normalize, path))) {
+ /* Deleted in both or deleted in one and
+ * unchanged in the other */
+ if (a_sha)
+ output(o, 2, "Removing %s", path);
+ /* do not touch working file if it did not exist */
+ remove_file(o, 1, path, !a_sha);
+ } else {
+ /* Modify/delete; deleted side may have put a directory in the way */
+ char *renamed = NULL;
+ clean_merge = 0;
+ if (dir_in_way(path, !o->call_depth)) {
+ renamed = unique_path(o, path, a_sha ? o->branch1 : o->branch2);
+ }
+ handle_delete_modify(o, path, renamed,
+ a_sha, a_mode, b_sha, b_mode);
+ free(renamed);
}
- clean_merge = 0;
- handle_delete_modify(o, path, renamed ? renamed : path,
- a_sha, a_mode, b_sha, b_mode);
- free(renamed);
- } else if (!o_sha && !!a_sha != !!b_sha) {
- /* directory -> (directory, file) or <nothing> -> (directory, file) */
+ } else if ((!o_sha && a_sha && !b_sha) ||
+ (!o_sha && !a_sha && b_sha)) {
+ /* Case B: Added in one. */
+ /* [nothing|directory] -> ([nothing|directory], file) */
+
const char *add_branch;
const char *other_branch;
unsigned mode;
@@ -1605,10 +1528,20 @@ static int process_df_entry(struct merge_options *o,
output(o, 2, "Adding %s", path);
update_file(o, 1, sha, mode, path);
}
- } else {
- entry->processed = 0;
- return 1; /* not handled; assume clean until processed */
- }
+ } else if (a_sha && b_sha) {
+ /* Case C: Added in both (check for same permissions) and */
+ /* case D: Modified in both, but differently. */
+ clean_merge = merge_content(o, entry->involved_in_rename, path,
+ o_sha, o_mode, a_sha, a_mode, b_sha, b_mode,
+ NULL);
+ } else if (!o_sha && !a_sha && !b_sha) {
+ /*
+ * this entry was deleted altogether. a_mode == 0 means
+ * we had that path and want to actively remove it.
+ */
+ remove_file(o, 1, path, !a_mode);
+ } else
+ die("Fatal merge failure, shouldn't happen.");
return clean_merge;
}
@@ -1656,7 +1589,7 @@ 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);
- for (i = 0; i < entries->nr; i++) {
+ 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
@@ -1664,13 +1597,6 @@ int merge_trees(struct merge_options *o,
clean = 0;
}
for (i = 0; i < entries->nr; i++) {
- const char *path = entries->items[i].string;
- struct stage_data *e = entries->items[i].util;
- if (!e->processed
- && !process_df_entry(o, path, e))
- clean = 0;
- }
- for (i = 0; i < entries->nr; i++) {
struct stage_data *e = entries->items[i].util;
if (!e->processed)
die("Unprocessed path??? %s",
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