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authorJunio C Hamano <gitster@pobox.com>2010-11-29 17:52:35 -0800
committerJunio C Hamano <gitster@pobox.com>2010-11-29 17:52:35 -0800
commit5acb623b72bde9ec96c48a8bb8f50e61371705ee (patch)
tree5d67a3d80b6e68c5b17ea872ae76ddb66bcdc165
parent106e3afa6f2d54ea520f9f156abca34913ae4968 (diff)
parent9f6cea97c97ee505bd6771db7df69f04df9b4fc4 (diff)
downloadgit-5acb623b72bde9ec96c48a8bb8f50e61371705ee.tar.gz
Merge branch 'en/merge-recursive'
* en/merge-recursive: (41 commits) t6022: Use -eq not = to test output of wc -l merge-recursive:make_room_for_directories - work around dumb compilers merge-recursive: Remove redundant path clearing for D/F conflicts merge-recursive: Make room for directories in D/F conflicts handle_delete_modify(): Check whether D/F conflicts are still present merge_content(): Check whether D/F conflicts are still present conflict_rename_rename_1to2(): Fix checks for presence of D/F conflicts conflict_rename_delete(): Check whether D/F conflicts are still present merge-recursive: Delay modify/delete conflicts if D/F conflict present merge-recursive: Delay content merging for renames merge-recursive: Delay handling of rename/delete conflicts merge-recursive: Move handling of double rename of one file to other file merge-recursive: Move handling of double rename of one file to two merge-recursive: Avoid doubly merging rename/add conflict contents merge-recursive: Update merge_content() call signature merge-recursive: Update conflict_rename_rename_1to2() call signature merge-recursive: Structure process_df_entry() to handle more cases merge-recursive: Have process_entry() skip D/F or rename entries merge-recursive: New function to assist resolving renames in-core only merge-recursive: New data structures for deferring of D/F conflicts ... Conflicts: t/t6020-merge-df.sh t/t6036-recursive-corner-cases.sh
-rw-r--r--merge-recursive.c652
-rwxr-xr-xt/t3030-merge-recursive.sh37
-rwxr-xr-xt/t3509-cherry-pick-merge-df.sh66
-rwxr-xr-xt/t6020-merge-df.sh76
-rwxr-xr-xt/t6022-merge-rename.sh366
-rwxr-xr-xt/t6032-merge-large-rename.sh30
-rwxr-xr-xt/t6036-recursive-corner-cases.sh185
7 files changed, 1172 insertions, 240 deletions
diff --git a/merge-recursive.c b/merge-recursive.c
index 875859f68e..16c2dbeab9 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -63,6 +63,22 @@ static int sha_eq(const unsigned char *a, const unsigned char *b)
return a && b && hashcmp(a, b) == 0;
}
+enum rename_type {
+ RENAME_NORMAL = 0,
+ RENAME_DELETE,
+ RENAME_ONE_FILE_TO_TWO
+};
+
+struct rename_df_conflict_info {
+ enum rename_type rename_type;
+ struct diff_filepair *pair1;
+ struct diff_filepair *pair2;
+ const char *branch1;
+ const char *branch2;
+ struct stage_data *dst_entry1;
+ struct stage_data *dst_entry2;
+};
+
/*
* Since we want to write the index eventually, we cannot reuse the index
* for these (temporary) data.
@@ -74,9 +90,37 @@ struct stage_data
unsigned mode;
unsigned char sha[20];
} stages[4];
+ struct rename_df_conflict_info *rename_df_conflict_info;
unsigned processed:1;
};
+static inline void setup_rename_df_conflict_info(enum rename_type rename_type,
+ struct diff_filepair *pair1,
+ struct diff_filepair *pair2,
+ const char *branch1,
+ const char *branch2,
+ struct stage_data *dst_entry1,
+ struct stage_data *dst_entry2)
+{
+ struct rename_df_conflict_info *ci = xcalloc(1, sizeof(struct rename_df_conflict_info));
+ ci->rename_type = rename_type;
+ ci->pair1 = pair1;
+ ci->branch1 = branch1;
+ ci->branch2 = branch2;
+
+ ci->dst_entry1 = dst_entry1;
+ dst_entry1->rename_df_conflict_info = ci;
+ dst_entry1->processed = 0;
+
+ assert(!pair2 == !dst_entry2);
+ if (dst_entry2) {
+ ci->dst_entry2 = dst_entry2;
+ ci->pair2 = pair2;
+ dst_entry2->rename_df_conflict_info = ci;
+ dst_entry2->processed = 0;
+ }
+}
+
static int show(struct merge_options *o, int v)
{
return (!o->call_depth && o->verbosity >= v) || o->verbosity >= 5;
@@ -302,6 +346,63 @@ static struct string_list *get_unmerged(void)
return unmerged;
}
+static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
+ struct string_list *entries)
+{
+ /* If there are D/F conflicts, and the paths currently exist
+ * in the working copy as a file, we want to remove them to
+ * make room for the corresponding directory. Such paths will
+ * later be processed in process_df_entry() at the end. If
+ * the corresponding directory ends up being removed by the
+ * merge, then the file will be reinstated at that time;
+ * otherwise, if the file is not supposed to be removed by the
+ * merge, the contents of the file will be placed in another
+ * unique filename.
+ *
+ * NOTE: This function relies on the fact that entries for a
+ * D/F conflict will appear adjacent in the index, with the
+ * entries for the file appearing before entries for paths
+ * below the corresponding directory.
+ */
+ const char *last_file = NULL;
+ int last_len = 0;
+ struct stage_data *last_e;
+ int i;
+
+ for (i = 0; i < entries->nr; i++) {
+ const char *path = entries->items[i].string;
+ int len = strlen(path);
+ struct stage_data *e = entries->items[i].util;
+
+ /*
+ * Check if last_file & path correspond to a D/F conflict;
+ * i.e. whether path is last_file+'/'+<something>.
+ * If so, remove last_file to make room for path and friends.
+ */
+ if (last_file &&
+ len > last_len &&
+ memcmp(path, last_file, last_len) == 0 &&
+ path[last_len] == '/') {
+ output(o, 3, "Removing %s to make room for subdirectory; may re-add later.", last_file);
+ unlink(last_file);
+ }
+
+ /*
+ * Determine whether path could exist as a file in the
+ * working directory as a possible D/F conflict. This
+ * will only occur when it exists in stage 2 as a
+ * file.
+ */
+ if (S_ISREG(e->stages[2].mode) || S_ISLNK(e->stages[2].mode)) {
+ last_file = path;
+ last_len = len;
+ last_e = e;
+ } else {
+ last_file = NULL;
+ }
+ }
+}
+
struct rename
{
struct diff_filepair *pair;
@@ -374,11 +475,10 @@ static struct string_list *get_renames(struct merge_options *o,
return renames;
}
-static int update_stages(const char *path, struct diff_filespec *o,
+static int update_stages_options(const char *path, struct diff_filespec *o,
struct diff_filespec *a, struct diff_filespec *b,
- int clear)
+ int clear, int options)
{
- int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE;
if (clear)
if (remove_file_from_cache(path))
return -1;
@@ -394,6 +494,34 @@ static int update_stages(const char *path, struct diff_filespec *o,
return 0;
}
+static int update_stages(const char *path, struct diff_filespec *o,
+ struct diff_filespec *a, struct diff_filespec *b,
+ int clear)
+{
+ int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE;
+ return update_stages_options(path, o, a, b, clear, options);
+}
+
+static int update_stages_and_entry(const char *path,
+ struct stage_data *entry,
+ struct diff_filespec *o,
+ struct diff_filespec *a,
+ struct diff_filespec *b,
+ int clear)
+{
+ int options;
+
+ entry->processed = 0;
+ entry->stages[1].mode = o->mode;
+ entry->stages[2].mode = a->mode;
+ entry->stages[3].mode = b->mode;
+ hashcpy(entry->stages[1].sha, o->sha1);
+ hashcpy(entry->stages[2].sha, a->sha1);
+ hashcpy(entry->stages[3].sha, b->sha1);
+ options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_SKIP_DFCHECK;
+ return update_stages_options(path, o, a, b, clear, options);
+}
+
static int remove_file(struct merge_options *o, int clean,
const char *path, int no_wd)
{
@@ -732,29 +860,56 @@ static struct merge_file_info merge_file(struct merge_options *o,
return result;
}
-static void conflict_rename_rename(struct merge_options *o,
- struct rename *ren1,
- const char *branch1,
- struct rename *ren2,
- const char *branch2)
+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;
+ struct stat st;
+
+ 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,
+ 1);
+ if (lstat(dest_name, &st) == 0 && S_ISDIR(st.st_mode)) {
+ dest_name = unique_path(o, dest_name, rename_branch);
+ df_conflict = 1;
+ }
+ update_file(o, 0, pair->two->sha1, pair->two->mode, dest_name);
+ if (df_conflict)
+ free(dest_name);
+}
+
+static void conflict_rename_rename_1to2(struct merge_options *o,
+ struct diff_filepair *pair1,
+ const char *branch1,
+ struct diff_filepair *pair2,
+ const char *branch2)
{
+ /* One file was renamed in both branches, but to different names. */
char *del[2];
int delp = 0;
- const char *ren1_dst = ren1->pair->two->path;
- const char *ren2_dst = ren2->pair->two->path;
+ const char *ren1_dst = pair1->two->path;
+ const char *ren2_dst = pair2->two->path;
const char *dst_name1 = ren1_dst;
const char *dst_name2 = ren2_dst;
- if (string_list_has_string(&o->current_directory_set, ren1_dst)) {
+ struct stat st;
+ if (lstat(ren1_dst, &st) == 0 && S_ISDIR(st.st_mode)) {
dst_name1 = del[delp++] = unique_path(o, ren1_dst, branch1);
output(o, 1, "%s is a directory in %s adding as %s instead",
ren1_dst, branch2, dst_name1);
- remove_file(o, 0, ren1_dst, 0);
}
- if (string_list_has_string(&o->current_directory_set, ren2_dst)) {
+ if (lstat(ren2_dst, &st) == 0 && S_ISDIR(st.st_mode)) {
dst_name2 = del[delp++] = unique_path(o, ren2_dst, branch2);
output(o, 1, "%s is a directory in %s adding as %s instead",
ren2_dst, branch1, dst_name2);
- remove_file(o, 0, ren2_dst, 0);
}
if (o->call_depth) {
remove_file_from_cache(dst_name1);
@@ -762,34 +917,27 @@ static void conflict_rename_rename(struct merge_options *o,
/*
* Uncomment to leave the conflicting names in the resulting tree
*
- * update_file(o, 0, ren1->pair->two->sha1, ren1->pair->two->mode, dst_name1);
- * update_file(o, 0, ren2->pair->two->sha1, ren2->pair->two->mode, dst_name2);
+ * update_file(o, 0, pair1->two->sha1, pair1->two->mode, dst_name1);
+ * update_file(o, 0, pair2->two->sha1, pair2->two->mode, dst_name2);
*/
} else {
- update_stages(dst_name1, NULL, ren1->pair->two, NULL, 1);
- update_stages(dst_name2, NULL, NULL, ren2->pair->two, 1);
+ update_stages(ren1_dst, NULL, pair1->two, NULL, 1);
+ update_stages(ren2_dst, NULL, NULL, pair2->two, 1);
+
+ update_file(o, 0, pair1->two->sha1, pair1->two->mode, dst_name1);
+ update_file(o, 0, pair2->two->sha1, pair2->two->mode, dst_name2);
}
while (delp--)
free(del[delp]);
}
-static void conflict_rename_dir(struct merge_options *o,
- struct rename *ren1,
- const char *branch1)
-{
- char *new_path = unique_path(o, ren1->pair->two->path, branch1);
- output(o, 1, "Renaming %s to %s instead", ren1->pair->one->path, new_path);
- remove_file(o, 0, ren1->pair->two->path, 0);
- update_file(o, 0, ren1->pair->two->sha1, ren1->pair->two->mode, new_path);
- free(new_path);
-}
-
-static void conflict_rename_rename_2(struct merge_options *o,
- struct rename *ren1,
- const char *branch1,
- struct rename *ren2,
- const char *branch2)
+static void conflict_rename_rename_2to1(struct merge_options *o,
+ struct rename *ren1,
+ const char *branch1,
+ struct rename *ren2,
+ const char *branch2)
{
+ /* Two files were renamed to the same thing. */
char *new_path1 = unique_path(o, ren1->pair->two->path, branch1);
char *new_path2 = unique_path(o, ren2->pair->two->path, branch2);
output(o, 1, "Renaming %s to %s and %s to %s instead",
@@ -879,84 +1027,60 @@ static int process_renames(struct merge_options *o,
ren2->dst_entry->processed = 1;
ren2->processed = 1;
if (strcmp(ren1_dst, ren2_dst) != 0) {
- clean_merge = 0;
- output(o, 1, "CONFLICT (rename/rename): "
- "Rename \"%s\"->\"%s\" in branch \"%s\" "
- "rename \"%s\"->\"%s\" in \"%s\"%s",
- src, ren1_dst, branch1,
- src, ren2_dst, branch2,
- o->call_depth ? " (left unresolved)": "");
- if (o->call_depth) {
- remove_file_from_cache(src);
- update_file(o, 0, ren1->pair->one->sha1,
- ren1->pair->one->mode, src);
- }
- conflict_rename_rename(o, ren1, branch1, ren2, branch2);
+ setup_rename_df_conflict_info(RENAME_ONE_FILE_TO_TWO,
+ ren1->pair,
+ ren2->pair,
+ branch1,
+ branch2,
+ ren1->dst_entry,
+ ren2->dst_entry);
} else {
- struct merge_file_info mfi;
remove_file(o, 1, ren1_src, 1);
- mfi = merge_file(o,
- ren1->pair->one,
- ren1->pair->two,
- ren2->pair->two,
- branch1,
- branch2);
- if (mfi.merge || !mfi.clean)
- output(o, 1, "Renaming %s->%s", src, ren1_dst);
-
- if (mfi.merge)
- output(o, 2, "Auto-merging %s", ren1_dst);
-
- if (!mfi.clean) {
- output(o, 1, "CONFLICT (content): merge conflict in %s",
- ren1_dst);
- clean_merge = 0;
-
- if (!o->call_depth)
- update_stages(ren1_dst,
- ren1->pair->one,
- ren1->pair->two,
- ren2->pair->two,
- 1 /* clear */);
- }
- update_file(o, mfi.clean, mfi.sha, mfi.mode, ren1_dst);
+ update_stages_and_entry(ren1_dst,
+ ren1->dst_entry,
+ ren1->pair->one,
+ ren1->pair->two,
+ ren2->pair->two,
+ 1 /* clear */);
}
} else {
/* Renamed in 1, maybe changed in 2 */
struct string_list_item *item;
/* we only use sha1 and mode of these */
struct diff_filespec src_other, dst_other;
- int try_merge, stage = a_renames == renames1 ? 3: 2;
+ int try_merge;
- remove_file(o, 1, ren1_src, o->call_depth || stage == 3);
+ /*
+ * unpack_trees loads entries from common-commit
+ * into stage 1, from head-commit into stage 2, and
+ * from merge-commit into stage 3. We keep track
+ * of which side corresponds to the rename.
+ */
+ int renamed_stage = a_renames == renames1 ? 2 : 3;
+ int other_stage = a_renames == renames1 ? 3 : 2;
- hashcpy(src_other.sha1, ren1->src_entry->stages[stage].sha);
- src_other.mode = ren1->src_entry->stages[stage].mode;
- hashcpy(dst_other.sha1, ren1->dst_entry->stages[stage].sha);
- dst_other.mode = ren1->dst_entry->stages[stage].mode;
+ remove_file(o, 1, ren1_src, o->call_depth || renamed_stage == 2);
+ hashcpy(src_other.sha1, ren1->src_entry->stages[other_stage].sha);
+ src_other.mode = ren1->src_entry->stages[other_stage].mode;
+ hashcpy(dst_other.sha1, ren1->dst_entry->stages[other_stage].sha);
+ dst_other.mode = ren1->dst_entry->stages[other_stage].mode;
try_merge = 0;
- if (string_list_has_string(&o->current_directory_set, ren1_dst)) {
- clean_merge = 0;
- output(o, 1, "CONFLICT (rename/directory): Rename %s->%s in %s "
- " directory %s added in %s",
- ren1_src, ren1_dst, branch1,
- ren1_dst, branch2);
- conflict_rename_dir(o, ren1, branch1);
- } else if (sha_eq(src_other.sha1, null_sha1)) {
- clean_merge = 0;
- output(o, 1, "CONFLICT (rename/delete): Rename %s->%s in %s "
- "and deleted in %s",
- ren1_src, ren1_dst, branch1,
- branch2);
- update_file(o, 0, ren1->pair->two->sha1, ren1->pair->two->mode, ren1_dst);
- if (!o->call_depth)
- update_stages(ren1_dst, NULL,
- branch1 == o->branch1 ?
- ren1->pair->two : NULL,
- branch1 == o->branch1 ?
- NULL : ren1->pair->two, 1);
+ if (sha_eq(src_other.sha1, null_sha1)) {
+ if (string_list_has_string(&o->current_directory_set, ren1_dst)) {
+ ren1->dst_entry->processed = 0;
+ setup_rename_df_conflict_info(RENAME_DELETE,
+ ren1->pair,
+ NULL,
+ branch1,
+ branch2,
+ ren1->dst_entry,
+ NULL);
+ } else {
+ clean_merge = 0;
+ conflict_rename_delete(o, ren1->pair, branch1, branch2);
+ }
} else if ((dst_other.mode == ren1->pair->two->mode) &&
sha_eq(dst_other.sha1, ren1->pair->two->sha1)) {
/* Added file on the other side
@@ -991,6 +1115,7 @@ static int process_renames(struct merge_options *o,
mfi.sha,
mfi.mode,
ren1_dst);
+ try_merge = 0;
} else {
new_path = unique_path(o, ren1_dst, branch2);
output(o, 1, "Adding as %s instead", new_path);
@@ -1005,13 +1130,12 @@ static int process_renames(struct merge_options *o,
"Rename %s->%s in %s",
ren1_src, ren1_dst, branch1,
ren2->pair->one->path, ren2->pair->two->path, branch2);
- conflict_rename_rename_2(o, ren1, branch1, ren2, branch2);
+ conflict_rename_rename_2to1(o, ren1, branch1, ren2, branch2);
} else
try_merge = 1;
if (try_merge) {
struct diff_filespec *one, *a, *b;
- struct merge_file_info mfi;
src_other.path = (char *)ren1_src;
one = ren1->pair->one;
@@ -1022,41 +1146,15 @@ static int process_renames(struct merge_options *o,
b = ren1->pair->two;
a = &src_other;
}
- mfi = merge_file(o, one, a, b,
- o->branch1, o->branch2);
-
- if (mfi.clean &&
- sha_eq(mfi.sha, ren1->pair->two->sha1) &&
- mfi.mode == ren1->pair->two->mode) {
- /*
- * This message is part of
- * t6022 test. If you change
- * it update the test too.
- */
- output(o, 3, "Skipped %s (merged same as existing)", ren1_dst);
-
- /* There may be higher stage entries left
- * in the index (e.g. due to a D/F
- * conflict) that need to be resolved.
- */
- if (!ren1->dst_entry->stages[2].mode !=
- !ren1->dst_entry->stages[3].mode)
- ren1->dst_entry->processed = 0;
- } else {
- if (mfi.merge || !mfi.clean)
- output(o, 1, "Renaming %s => %s", ren1_src, ren1_dst);
- if (mfi.merge)
- output(o, 2, "Auto-merging %s", ren1_dst);
- if (!mfi.clean) {
- output(o, 1, "CONFLICT (rename/modify): Merge conflict in %s",
- ren1_dst);
- clean_merge = 0;
-
- if (!o->call_depth)
- update_stages(ren1_dst,
- one, a, b, 1);
- }
- update_file(o, mfi.clean, mfi.sha, mfi.mode, ren1_dst);
+ update_stages_and_entry(ren1_dst, ren1->dst_entry, one, a, b, 1);
+ if (string_list_has_string(&o->current_directory_set, ren1_dst)) {
+ setup_rename_df_conflict_info(RENAME_NORMAL,
+ ren1->pair,
+ NULL,
+ branch1,
+ NULL,
+ ren1->dst_entry,
+ NULL);
}
}
}
@@ -1119,6 +1217,90 @@ error_return:
return ret;
}
+static void handle_delete_modify(struct merge_options *o,
+ const char *path,
+ const char *new_path,
+ unsigned char *a_sha, int a_mode,
+ unsigned char *b_sha, int b_mode)
+{
+ 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,
+ path == new_path ? "" : " at ",
+ path == new_path ? "" : new_path);
+ update_file(o, 0, b_sha, b_mode, new_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);
+ }
+}
+
+static int merge_content(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,
+ const char *df_rename_conflict_branch)
+{
+ const char *reason = "content";
+ struct merge_file_info mfi;
+ struct diff_filespec one, a, b;
+ struct stat st;
+ unsigned df_conflict_remains = 0;
+
+ if (!o_sha) {
+ reason = "add/add";
+ o_sha = (unsigned char *)null_sha1;
+ }
+ one.path = a.path = b.path = (char *)path;
+ hashcpy(one.sha1, o_sha);
+ one.mode = o_mode;
+ hashcpy(a.sha1, a_sha);
+ a.mode = a_mode;
+ hashcpy(b.sha1, b_sha);
+ b.mode = b_mode;
+
+ mfi = merge_file(o, &one, &a, &b, o->branch1, o->branch2);
+ if (df_rename_conflict_branch &&
+ lstat(path, &st) == 0 && S_ISDIR(st.st_mode)) {
+ df_conflict_remains = 1;
+ }
+
+ if (mfi.clean && !df_conflict_remains &&
+ sha_eq(mfi.sha, a_sha) && mfi.mode == a.mode)
+ output(o, 3, "Skipped %s (merged same as existing)", path);
+ else
+ output(o, 2, "Auto-merging %s", path);
+
+ if (!mfi.clean) {
+ if (S_ISGITLINK(mfi.mode))
+ reason = "submodule";
+ output(o, 1, "CONFLICT (%s): Merge conflict in %s",
+ reason, path);
+ }
+
+ if (df_conflict_remains) {
+ const char *new_path;
+ update_file_flags(o, mfi.sha, mfi.mode, path,
+ o->call_depth || mfi.clean, 0);
+ new_path = unique_path(o, path, df_rename_conflict_branch);
+ mfi.clean = 0;
+ output(o, 1, "Adding as %s instead", new_path);
+ update_file_flags(o, mfi.sha, mfi.mode, new_path, 0, 1);
+ } else {
+ update_file(o, mfi.clean, mfi.sha, mfi.mode, path);
+ }
+ return mfi.clean;
+
+}
+
/* Per entry merge function */
static int process_entry(struct merge_options *o,
const char *path, struct stage_data *entry)
@@ -1136,6 +1318,9 @@ 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 */
@@ -1148,22 +1333,15 @@ static int process_entry(struct merge_options *o,
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 (string_list_has_string(&o->current_directory_set,
+ path)) {
+ entry->processed = 0;
+ return 1; /* Assume clean until processed */
} else {
/* Deleted in one and changed in the other */
clean_merge = 0;
- if (!a_sha) {
- output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
- "and modified in %s. Version %s of %s left in tree.",
- path, o->branch1,
- o->branch2, o->branch2, path);
- update_file(o, 0, b_sha, b_mode, path);
- } else {
- output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
- "and modified in %s. Version %s of %s left in tree.",
- path, o->branch2,
- o->branch1, o->branch1, path);
- update_file(o, 0, a_sha, a_mode, path);
- }
+ handle_delete_modify(o, path, path,
+ a_sha, a_mode, b_sha, b_mode);
}
} else if ((!o_sha && a_sha && !b_sha) ||
@@ -1182,15 +1360,7 @@ static int process_entry(struct merge_options *o,
if (string_list_has_string(&o->current_directory_set, path)) {
/* Handle D->F conflicts after all subfiles */
entry->processed = 0;
- /* But get any file out of the way now, so conflicted
- * entries below the directory of the same name can
- * be put in the working directory.
- */
- if (a_sha)
- output(o, 2, "Removing %s", path);
- /* do not touch working file if it did not exist */
- remove_file(o, 0, path, !a_sha);
- return 1; /* Assume clean till processed */
+ return 1; /* Assume clean until processed */
} else {
output(o, 2, "Adding %s", path);
update_file(o, 1, sha, mode, path);
@@ -1198,34 +1368,9 @@ static int process_entry(struct merge_options *o,
} else if (a_sha && b_sha) {
/* Case C: Added in both (check for same permissions) and */
/* case D: Modified in both, but differently. */
- const char *reason = "content";
- struct merge_file_info mfi;
- struct diff_filespec one, a, b;
-
- if (!o_sha) {
- reason = "add/add";
- o_sha = (unsigned char *)null_sha1;
- }
- output(o, 2, "Auto-merging %s", path);
- one.path = a.path = b.path = (char *)path;
- hashcpy(one.sha1, o_sha);
- one.mode = o_mode;
- hashcpy(a.sha1, a_sha);
- a.mode = a_mode;
- hashcpy(b.sha1, b_sha);
- b.mode = b_mode;
-
- mfi = merge_file(o, &one, &a, &b,
- o->branch1, o->branch2);
-
- clean_merge = mfi.clean;
- if (!mfi.clean) {
- if (S_ISGITLINK(mfi.mode))
- reason = "submodule";
- output(o, 1, "CONFLICT (%s): Merge conflict in %s",
- reason, path);
- }
- update_file(o, mfi.clean, mfi.sha, mfi.mode, path);
+ clean_merge = merge_content(o, 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
@@ -1239,13 +1384,19 @@ static int process_entry(struct merge_options *o,
}
/*
- * Per entry merge function for D/F conflicts, to be called only after
- * all files below dir have been processed. We do this because in the
- * cases we can cleanly resolve D/F conflicts, process_entry() can clean
- * out all the files below the directory for us.
+ * 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)
+ const char *path, struct stage_data *entry)
{
int clean_merge = 1;
unsigned o_mode = entry->stages[1].mode;
@@ -1254,43 +1405,91 @@ static int process_df_entry(struct merge_options *o,
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);
- const char *add_branch;
- const char *other_branch;
- unsigned mode;
- const unsigned char *sha;
- const char *conf;
struct stat st;
- /* We currently only handle D->F cases */
- assert((!o_sha && a_sha && !b_sha) ||
- (!o_sha && !a_sha && b_sha));
-
entry->processed = 1;
-
- if (a_sha) {
- add_branch = o->branch1;
- other_branch = o->branch2;
- mode = a_mode;
- sha = a_sha;
- conf = "file/directory";
- } else {
- add_branch = o->branch2;
- other_branch = o->branch1;
- mode = b_mode;
- sha = b_sha;
- conf = "directory/file";
- }
- if (lstat(path, &st) == 0 && S_ISDIR(st.st_mode)) {
- const char *new_path = unique_path(o, path, add_branch);
+ if (entry->rename_df_conflict_info) {
+ struct rename_df_conflict_info *conflict_info = entry->rename_df_conflict_info;
+ char *src;
+ switch (conflict_info->rename_type) {
+ case RENAME_NORMAL:
+ clean_merge = merge_content(o, path,
+ o_sha, o_mode, a_sha, a_mode, b_sha, b_mode,
+ conflict_info->branch1);
+ break;
+ case RENAME_DELETE:
+ clean_merge = 0;
+ conflict_rename_delete(o, conflict_info->pair1,
+ conflict_info->branch1,
+ conflict_info->branch2);
+ break;
+ case RENAME_ONE_FILE_TO_TWO:
+ src = conflict_info->pair1->one->path;
+ clean_merge = 0;
+ output(o, 1, "CONFLICT (rename/rename): "
+ "Rename \"%s\"->\"%s\" in branch \"%s\" "
+ "rename \"%s\"->\"%s\" in \"%s\"%s",
+ src, conflict_info->pair1->two->path, conflict_info->branch1,
+ src, conflict_info->pair2->two->path, conflict_info->branch2,
+ o->call_depth ? " (left unresolved)" : "");
+ if (o->call_depth) {
+ remove_file_from_cache(src);
+ update_file(o, 0, conflict_info->pair1->one->sha1,
+ conflict_info->pair1->one->mode, src);
+ }
+ conflict_rename_rename_1to2(o, conflict_info->pair1,
+ 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 */
+ const char *new_path = path;
+ if (lstat(path, &st) == 0 && S_ISDIR(st.st_mode))
+ new_path = unique_path(o, path, a_sha ? o->branch1 : o->branch2);
clean_merge = 0;
- 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);
- remove_file(o, 0, path, 0);
- update_file(o, 0, sha, mode, new_path);
+ handle_delete_modify(o, path, new_path,
+ a_sha, a_mode, b_sha, b_mode);
+ } else if (!o_sha && !!a_sha != !!b_sha) {
+ /* directory -> (directory, file) */
+ const char *add_branch;
+ const char *other_branch;
+ unsigned mode;
+ const unsigned char *sha;
+ const char *conf;
+
+ if (a_sha) {
+ add_branch = o->branch1;
+ other_branch = o->branch2;
+ mode = a_mode;
+ sha = a_sha;
+ conf = "file/directory";
+ } else {
+ add_branch = o->branch2;
+ other_branch = o->branch1;
+ mode = b_mode;
+ sha = b_sha;
+ conf = "directory/file";
+ }
+ if (lstat(path, &st) == 0 && S_ISDIR(st.st_mode)) {
+ const char *new_path = unique_path(o, path, add_branch);
+ clean_merge = 0;
+ 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, sha, mode, new_path);
+ } else {
+ output(o, 2, "Adding %s", path);
+ update_file(o, 1, sha, mode, path);
+ }
} else {
- output(o, 2, "Adding %s", path);
- update_file(o, 1, sha, mode, path);
+ entry->processed = 0;
+ return 1; /* not handled; assume clean until processed */
}
return clean_merge;
@@ -1335,6 +1534,7 @@ int merge_trees(struct merge_options *o,
get_files_dirs(o, merge);
entries = get_unmerged();
+ make_room_for_directories_of_df_conflicts(o, entries);
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);
@@ -1352,6 +1552,12 @@ int merge_trees(struct merge_options *o,
&& !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",
+ entries->items[i].string);
+ }
string_list_clear(re_merge, 0);
string_list_clear(re_head, 0);
diff --git a/t/t3030-merge-recursive.sh b/t/t3030-merge-recursive.sh
index 20d4f11dbe..34794f8a70 100755
--- a/t/t3030-merge-recursive.sh
+++ b/t/t3030-merge-recursive.sh
@@ -25,6 +25,10 @@ test_expect_success 'setup 1' '
git branch submod &&
git branch copy &&
git branch rename &&
+ if test_have_prereq SYMLINKS
+ then
+ git branch rename-ln
+ fi &&
echo hello >>a &&
cp a d/e &&
@@ -255,7 +259,16 @@ test_expect_success 'setup 8' '
git mv a e &&
git add e &&
test_tick &&
- git commit -m "rename a->e"
+ git commit -m "rename a->e" &&
+ if test_have_prereq SYMLINKS
+ then
+ git checkout rename-ln &&
+ git mv a e &&
+ ln -s e a &&
+ git add a e &&
+ test_tick &&
+ git commit -m "rename a->e, symlink a->e"
+ fi
'
test_expect_success 'setup 9' '
@@ -615,4 +628,26 @@ test_expect_success 'merge-recursive copy vs. rename' '
test_cmp expected actual
'
+if test_have_prereq SYMLINKS
+then
+ test_expect_success 'merge-recursive rename vs. rename/symlink' '
+
+ git checkout -f rename &&
+ git merge rename-ln &&
+ ( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
+ (
+ echo "100644 blob $o0 b"
+ echo "100644 blob $o0 c"
+ echo "100644 blob $o0 d/e"
+ echo "100644 blob $o0 e"
+ echo "100644 $o0 0 b"
+ echo "100644 $o0 0 c"
+ echo "100644 $o0 0 d/e"
+ echo "100644 $o0 0 e"
+ ) >expected &&
+ test_cmp expected actual
+ '
+fi
+
+
test_done
diff --git a/t/t3509-cherry-pick-merge-df.sh b/t/t3509-cherry-pick-merge-df.sh
index a5ccdbf8fc..948ca1bce6 100755
--- a/t/t3509-cherry-pick-merge-df.sh
+++ b/t/t3509-cherry-pick-merge-df.sh
@@ -32,4 +32,70 @@ test_expect_success SYMLINKS 'Cherry-pick succeeds with rename across D/F confli
git cherry-pick branch
'
+test_expect_success 'Setup rename with file on one side matching directory name on other' '
+ git checkout --orphan nick-testcase &&
+ git rm -rf . &&
+
+ >empty &&
+ git add empty &&
+ git commit -m "Empty file" &&
+
+ git checkout -b simple &&
+ mv empty file &&
+ mkdir empty &&
+ mv file empty &&
+ git add empty/file &&
+ git commit -m "Empty file under empty dir" &&
+
+ echo content >newfile &&
+ git add newfile &&
+ git commit -m "New file"
+'
+
+test_expect_success 'Cherry-pick succeeds with was_a_dir/file -> was_a_dir (resolve)' '
+ git reset --hard &&
+ git checkout -q nick-testcase^0 &&
+ git cherry-pick --strategy=resolve simple
+'
+
+test_expect_success 'Cherry-pick succeeds with was_a_dir/file -> was_a_dir (recursive)' '
+ git reset --hard &&
+ git checkout -q nick-testcase^0 &&
+ git cherry-pick --strategy=recursive simple
+'
+
+test_expect_success 'Setup rename with file on one side matching different dirname on other' '
+ git reset --hard &&
+ git checkout --orphan mergeme &&
+ git rm -rf . &&
+
+ mkdir sub &&
+ mkdir othersub &&
+ echo content > sub/file &&
+ echo foo > othersub/whatever &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git rm -rf othersub &&
+ git mv sub/file othersub &&
+ git commit -m "Commit to merge" &&
+
+ git checkout -b newhead mergeme~1 &&
+ >independent-change &&
+ git add independent-change &&
+ git commit -m "Completely unrelated change"
+'
+
+test_expect_success 'Cherry-pick with rename to different D/F conflict succeeds (resolve)' '
+ git reset --hard &&
+ git checkout -q newhead^0 &&
+ git cherry-pick --strategy=resolve mergeme
+'
+
+test_expect_success 'Cherry-pick with rename to different D/F conflict succeeds (recursive)' '
+ git reset --hard &&
+ git checkout -q newhead^0 &&
+ git cherry-pick --strategy=recursive mergeme
+'
+
test_done
diff --git a/t/t6020-merge-df.sh b/t/t6020-merge-df.sh
index 5d91d056d2..eec8f4e3ed 100755
--- a/t/t6020-merge-df.sh
+++ b/t/t6020-merge-df.sh
@@ -6,19 +6,22 @@
test_description='Test merge with directory/file conflicts'
. ./test-lib.sh
-test_expect_success 'prepare repository' \
-'echo "Hello" > init &&
-git add init &&
-git commit -m "Initial commit" &&
-git branch B &&
-mkdir dir &&
-echo "foo" > dir/foo &&
-git add dir/foo &&
-git commit -m "File: dir/foo" &&
-git checkout B &&
-echo "file dir" > dir &&
-git add dir &&
-git commit -m "File: dir"'
+test_expect_success 'prepare repository' '
+ echo Hello >init &&
+ git add init &&
+ git commit -m initial &&
+
+ git branch B &&
+ mkdir dir &&
+ echo foo >dir/foo &&
+ git add dir/foo &&
+ git commit -m "File: dir/foo" &&
+
+ git checkout B &&
+ echo file dir >dir &&
+ git add dir &&
+ git commit -m "File: dir"
+'
test_expect_success 'Merge with d/f conflicts' '
test_expect_code 1 git merge "merge msg" B master
@@ -47,4 +50,51 @@ test_expect_success 'F/D conflict' '
git merge master
'
+test_expect_success 'setup modify/delete + directory/file conflict' '
+ git checkout --orphan modify &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ printf "a\nb\nc\nd\ne\nf\ng\nh\n" >letters &&
+ git add letters &&
+ git commit -m initial &&
+
+ echo i >>letters &&
+ git add letters &&
+ git commit -m modified &&
+
+ git checkout -b delete HEAD^ &&
+ git rm letters &&
+ mkdir letters &&
+ >letters/file &&
+ git add letters &&
+ git commit -m deleted
+'
+
+test_expect_success 'modify/delete + directory/file conflict' '
+ git checkout delete^0 &&
+ test_must_fail git merge modify &&
+
+ test 3 = $(git ls-files -s | wc -l) &&
+ test 2 = $(git ls-files -u | wc -l) &&
+ test 1 = $(git ls-files -o | wc -l) &&
+
+ test -f letters/file &&
+ test -f letters~modify
+'
+
+test_expect_success 'modify/delete + directory/file conflict; other way' '
+ git reset --hard &&
+ git clean -f &&
+ git checkout modify^0 &&
+ test_must_fail git merge delete &&
+
+ test 3 = $(git ls-files -s | wc -l) &&
+ test 2 = $(git ls-files -u | wc -l) &&
+ test 1 = $(git ls-files -o | wc -l) &&
+
+ test -f letters/file &&
+ test -f letters~HEAD
+'
+
test_done
diff --git a/t/t6022-merge-rename.sh b/t/t6022-merge-rename.sh
index 83efc7abf5..1ed259d864 100755
--- a/t/t6022-merge-rename.sh
+++ b/t/t6022-merge-rename.sh
@@ -3,6 +3,11 @@
test_description='Merge-recursive merging renames'
. ./test-lib.sh
+modify () {
+ sed -e "$1" <"$2" >"$2.x" &&
+ mv "$2.x" "$2"
+}
+
test_expect_success setup \
'
cat >A <<\EOF &&
@@ -243,4 +248,365 @@ test_expect_success 'merge of identical changes in a renamed file' '
GIT_MERGE_VERBOSITY=3 git merge change+rename | grep "^Skipped B"
'
+test_expect_success 'setup for rename + d/f conflicts' '
+ git reset --hard &&
+ git checkout --orphan dir-in-way &&
+ git rm -rf . &&
+
+ mkdir sub &&
+ mkdir dir &&
+ printf "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n" >sub/file &&
+ echo foo >dir/file-in-the-way &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ echo 11 >>sub/file &&
+ echo more >>dir/file-in-the-way &&
+ git add -u &&
+ git commit -m "Commit to merge, with dir in the way" &&
+
+ git checkout -b dir-not-in-way &&
+ git reset --soft HEAD^ &&
+ git rm -rf dir &&
+ git commit -m "Commit to merge, with dir removed" -- dir sub/file &&
+
+ git checkout -b renamed-file-has-no-conflicts dir-in-way~1 &&
+ git rm -rf dir &&
+ git rm sub/file &&
+ printf "1\n2\n3\n4\n5555\n6\n7\n8\n9\n10\n" >dir &&
+ git add dir &&
+ git commit -m "Independent change" &&
+
+ git checkout -b renamed-file-has-conflicts dir-in-way~1 &&
+ git rm -rf dir &&
+ git mv sub/file dir &&
+ echo 12 >>dir &&
+ git add dir &&
+ git commit -m "Conflicting change"
+'
+
+printf "1\n2\n3\n4\n5555\n6\n7\n8\n9\n10\n11\n" >expected
+
+test_expect_success 'Rename+D/F conflict; renamed file merges + dir not in way' '
+ git reset --hard &&
+ git checkout -q renamed-file-has-no-conflicts^0 &&
+ git merge --strategy=recursive dir-not-in-way &&
+ git diff --quiet &&
+ test -f dir &&
+ test_cmp expected dir
+'
+
+test_expect_success 'Rename+D/F conflict; renamed file merges but dir in way' '
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q renamed-file-has-no-conflicts^0 &&
+ test_must_fail git merge --strategy=recursive dir-in-way >output &&
+
+ grep "CONFLICT (delete/modify): dir/file-in-the-way" output &&
+ grep "Auto-merging dir" output &&
+ grep "Adding as dir~HEAD instead" output &&
+
+ test 2 -eq "$(git ls-files -u | wc -l)" &&
+ test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir/file-in-the-way &&
+ test -f dir~HEAD &&
+ test_cmp expected dir~HEAD
+'
+
+test_expect_success 'Same as previous, but merged other way' '
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q dir-in-way^0 &&
+ test_must_fail git merge --strategy=recursive renamed-file-has-no-conflicts >output 2>errors &&
+
+ ! grep "error: refusing to lose untracked file at" errors &&
+ grep "CONFLICT (delete/modify): dir/file-in-the-way" output &&
+ grep "Auto-merging dir" output &&
+ grep "Adding as dir~renamed-file-has-no-conflicts instead" output &&
+
+ test 2 -eq "$(git ls-files -u | wc -l)" &&
+ test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir/file-in-the-way &&
+ test -f dir~renamed-file-has-no-conflicts &&
+ test_cmp expected dir~renamed-file-has-no-conflicts
+'
+
+cat >expected <<\EOF &&
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+<<<<<<< HEAD
+12
+=======
+11
+>>>>>>> dir-not-in-way
+EOF
+
+test_expect_success 'Rename+D/F conflict; renamed file cannot merge, dir not in way' '
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q renamed-file-has-conflicts^0 &&
+ test_must_fail git merge --strategy=recursive dir-not-in-way &&
+
+ test 3 -eq "$(git ls-files -u | wc -l)" &&
+ test 3 -eq "$(git ls-files -u dir | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir &&
+ test_cmp expected dir
+'
+
+test_expect_success 'Rename+D/F conflict; renamed file cannot merge and dir in the way' '
+ modify s/dir-not-in-way/dir-in-way/ expected &&
+
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q renamed-file-has-conflicts^0 &&
+ test_must_fail git merge --strategy=recursive dir-in-way &&
+
+ test 5 -eq "$(git ls-files -u | wc -l)" &&
+ test 3 -eq "$(git ls-files -u dir | grep -v file-in-the-way | wc -l)" &&
+ test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir/file-in-the-way &&
+ test -f dir~HEAD &&
+ test_cmp expected dir~HEAD
+'
+
+cat >expected <<\EOF &&
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+<<<<<<< HEAD
+11
+=======
+12
+>>>>>>> renamed-file-has-conflicts
+EOF
+
+test_expect_success 'Same as previous, but merged other way' '
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q dir-in-way^0 &&
+ test_must_fail git merge --strategy=recursive renamed-file-has-conflicts &&
+
+ test 5 -eq "$(git ls-files -u | wc -l)" &&
+ test 3 -eq "$(git ls-files -u dir | grep -v file-in-the-way | wc -l)" &&
+ test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir/file-in-the-way &&
+ test -f dir~renamed-file-has-conflicts &&
+ test_cmp expected dir~renamed-file-has-conflicts
+'
+
+test_expect_success 'setup both rename source and destination involved in D/F conflict' '
+ git reset --hard &&
+ git checkout --orphan rename-dest &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ mkdir one &&
+ echo stuff >one/file &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git mv one/file destdir &&
+ git commit -m "Renamed to destdir" &&
+
+ git checkout -b source-conflict HEAD~1 &&
+ git rm -rf one &&
+ mkdir destdir &&
+ touch one destdir/foo &&
+ git add -A &&
+ git commit -m "Conflicts in the way"
+'
+
+test_expect_success 'both rename source and destination involved in D/F conflict' '
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q rename-dest^0 &&
+ test_must_fail git merge --strategy=recursive source-conflict &&
+
+ test 1 -eq "$(git ls-files -u | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+
+ test -f destdir/foo &&
+ test -f one &&
+ test -f destdir~HEAD &&
+ test "stuff" = "$(cat destdir~HEAD)"
+'
+
+test_expect_success 'setup pair rename to parent of other (D/F conflicts)' '
+ git reset --hard &&
+ git checkout --orphan rename-two &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ mkdir one &&
+ mkdir two &&
+ echo stuff >one/file &&
+ echo other >two/file &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git rm -rf one &&
+ git mv two/file one &&
+ git commit -m "Rename two/file -> one" &&
+
+ git checkout -b rename-one HEAD~1 &&
+ git rm -rf two &&
+ git mv one/file two &&
+ rm -r one &&
+ git commit -m "Rename one/file -> two"
+'
+
+test_expect_success 'pair rename to parent of other (D/F conflicts) w/ untracked dir' '
+ git checkout -q rename-one^0 &&
+ mkdir one &&
+ test_must_fail git merge --strategy=recursive rename-two &&
+
+ test 2 -eq "$(git ls-files -u | wc -l)" &&
+ test 1 -eq "$(git ls-files -u one | wc -l)" &&
+ test 1 -eq "$(git ls-files -u two | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+
+ test 4 -eq $(find . | grep -v .git | wc -l) &&
+
+ test -d one &&
+ test -f one~rename-two &&
+ test -f two &&
+ test "other" = $(cat one~rename-two) &&
+ test "stuff" = $(cat two)
+'
+
+test_expect_success 'pair rename to parent of other (D/F conflicts) w/ clean start' '
+ git reset --hard &&
+ git clean -fdqx &&
+ test_must_fail git merge --strategy=recursive rename-two &&
+
+ test 2 -eq "$(git ls-files -u | wc -l)" &&
+ test 1 -eq "$(git ls-files -u one | wc -l)" &&
+ test 1 -eq "$(git ls-files -u two | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+
+ test 3 -eq $(find . | grep -v .git | wc -l) &&
+
+ test -f one &&
+ test -f two &&
+ test "other" = $(cat one) &&
+ test "stuff" = $(cat two)
+'
+
+test_expect_success 'setup rename of one file to two, with directories in the way' '
+ git reset --hard &&
+ git checkout --orphan first-rename &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ echo stuff >original &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ mkdir two &&
+ >two/file &&
+ git add two/file &&
+ git mv original one &&
+ git commit -m "Put two/file in the way, rename to one" &&
+
+ git checkout -b second-rename HEAD~1 &&
+ mkdir one &&
+ >one/file &&
+ git add one/file &&
+ git mv original two &&
+ git commit -m "Put one/file in the way, rename to two"
+'
+
+test_expect_success 'check handling of differently renamed file with D/F conflicts' '
+ git checkout -q first-rename^0 &&
+ test_must_fail git merge --strategy=recursive second-rename &&
+
+ test 5 -eq "$(git ls-files -s | wc -l)" &&
+ test 3 -eq "$(git ls-files -u | wc -l)" &&
+ test 1 -eq "$(git ls-files -u one | wc -l)" &&
+ test 1 -eq "$(git ls-files -u two | wc -l)" &&
+ test 1 -eq "$(git ls-files -u original | wc -l)" &&
+ test 2 -eq "$(git ls-files -o | wc -l)" &&
+
+ test -f one/file &&
+ test -f two/file &&
+ test -f one~HEAD &&
+ test -f two~second-rename &&
+ ! test -f original
+'
+
+test_expect_success 'setup rename one file to two; directories moving out of the way' '
+ git reset --hard &&
+ git checkout --orphan first-rename-redo &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ echo stuff >original &&
+ mkdir one two &&
+ touch one/file two/file &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git rm -rf one &&
+ git mv original one &&
+ git commit -m "Rename to one" &&
+
+ git checkout -b second-rename-redo HEAD~1 &&
+ git rm -rf two &&
+ git mv original two &&
+ git commit -m "Rename to two"
+'
+
+test_expect_success 'check handling of differently renamed file with D/F conflicts' '
+ git checkout -q first-rename-redo^0 &&
+ test_must_fail git merge --strategy=recursive second-rename-redo &&
+
+ test 3 -eq "$(git ls-files -u | wc -l)" &&
+ test 1 -eq "$(git ls-files -u one | wc -l)" &&
+ test 1 -eq "$(git ls-files -u two | wc -l)" &&
+ test 1 -eq "$(git ls-files -u original | wc -l)" &&
+ test 0 -eq "$(git ls-files -o | wc -l)" &&
+
+ test -f one &&
+ test -f two &&
+ ! test -f original
+'
+
test_done
diff --git a/t/t6032-merge-large-rename.sh b/t/t6032-merge-large-rename.sh
index eac5ebac24..fdb6c25371 100755
--- a/t/t6032-merge-large-rename.sh
+++ b/t/t6032-merge-large-rename.sh
@@ -70,4 +70,34 @@ test_expect_success 'set merge.renamelimit to 5' '
test_rename 5 ok
test_rename 6 fail
+test_expect_success 'setup large simple rename' '
+ git config --unset merge.renamelimit &&
+ git config --unset diff.renamelimit &&
+
+ git reset --hard initial &&
+ for i in $(count 200); do
+ make_text foo bar baz >$i
+ done &&
+ git add . &&
+ git commit -m create-files &&
+
+ git branch simple-change &&
+ git checkout -b simple-rename &&
+
+ mkdir builtin &&
+ git mv [0-9]* builtin/ &&
+ git commit -m renamed &&
+
+ git checkout simple-change &&
+ >unrelated-change &&
+ git add unrelated-change &&
+ git commit -m unrelated-change
+'
+
+test_expect_success 'massive simple rename does not spam added files' '
+ unset GIT_MERGE_VERBOSITY &&
+ git merge --no-stat simple-rename | grep -v Removing >output &&
+ test 5 -gt "$(wc -l < output)"
+'
+
test_done
diff --git a/t/t6036-recursive-corner-cases.sh b/t/t6036-recursive-corner-cases.sh
index 004c365ad6..871577d90c 100755
--- a/t/t6036-recursive-corner-cases.sh
+++ b/t/t6036-recursive-corner-cases.sh
@@ -14,7 +14,7 @@ test_description='recursive merge corner cases'
# R1 R2
#
-test_expect_success setup '
+test_expect_success 'setup basic criss-cross + rename with no modifications' '
ten="0 1 2 3 4 5 6 7 8 9" &&
for i in $ten
do
@@ -45,11 +45,190 @@ test_expect_success setup '
git tag R2
'
-test_expect_success merge '
+test_expect_success 'merge simple rename+criss-cross with no modifications' '
git reset --hard &&
git checkout L2^0 &&
- test_must_fail git merge -s recursive R2^0
+ test_must_fail git merge -s recursive R2^0 &&
+
+ test 5 = $(git ls-files -s | wc -l) &&
+ test 3 = $(git ls-files -u | wc -l) &&
+ test 0 = $(git ls-files -o | wc -l) &&
+
+ test $(git rev-parse :0:one) = $(git rev-parse L2:one) &&
+ test $(git rev-parse :0:two) = $(git rev-parse R2:two) &&
+ test $(git rev-parse :2:three) = $(git rev-parse L2:three) &&
+ test $(git rev-parse :3:three) = $(git rev-parse R2:three) &&
+
+ cp two merged &&
+ >empty &&
+ test_must_fail git merge-file \
+ -L "Temporary merge branch 2" \
+ -L "" \
+ -L "Temporary merge branch 1" \
+ merged empty one &&
+ test $(git rev-parse :1:three) = $(git hash-object merged)
+'
+
+#
+# Same as before, but modify L1 slightly:
+#
+# L1m L2
+# o---o
+# / \ / \
+# o X ?
+# \ / \ /
+# o---o
+# R1 R2
+#
+
+test_expect_success 'setup criss-cross + rename merges with basic modification' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ ten="0 1 2 3 4 5 6 7 8 9"
+ for i in $ten
+ do
+ echo line $i in a sample file
+ done >one &&
+ for i in $ten
+ do
+ echo line $i in another sample file
+ done >two &&
+ git add one two &&
+ test_tick && git commit -m initial &&
+
+ git branch L1 &&
+ git checkout -b R1 &&
+ git mv one three &&
+ echo more >>two &&
+ git add two &&
+ test_tick && git commit -m R1 &&
+
+ git checkout L1 &&
+ git mv two three &&
+ test_tick && git commit -m L1 &&
+
+ git checkout L1^0 &&
+ test_tick && git merge -s ours R1 &&
+ git tag L2 &&
+
+ git checkout R1^0 &&
+ test_tick && git merge -s ours L1 &&
+ git tag R2
+'
+
+test_expect_success 'merge criss-cross + rename merges with basic modification' '
+ git reset --hard &&
+ git checkout L2^0 &&
+
+ test_must_fail git merge -s recursive R2^0 &&
+
+ test 5 = $(git ls-files -s | wc -l) &&
+ test 3 = $(git ls-files -u | wc -l) &&
+ test 0 = $(git ls-files -o | wc -l) &&
+
+ test $(git rev-parse :0:one) = $(git rev-parse L2:one) &&
+ test $(git rev-parse :0:two) = $(git rev-parse R2:two) &&
+ test $(git rev-parse :2:three) = $(git rev-parse L2:three) &&
+ test $(git rev-parse :3:three) = $(git rev-parse R2:three) &&
+
+ head -n 10 two >merged &&
+ cp one merge-me &&
+ >empty &&
+ test_must_fail git merge-file \
+ -L "Temporary merge branch 2" \
+ -L "" \
+ -L "Temporary merge branch 1" \
+ merged empty merge-me &&
+ test $(git rev-parse :1:three) = $(git hash-object merged)
+'
+
+#
+# For the next test, we start with three commits in two lines of development
+# which setup a rename/add conflict:
+# Commit A: File 'a' exists
+# Commit B: Rename 'a' -> 'new_a'
+# Commit C: Modify 'a', create different 'new_a'
+# Later, two different people merge and resolve differently:
+# Commit D: Merge B & C, ignoring separately created 'new_a'
+# Commit E: Merge B & C making use of some piece of secondary 'new_a'
+# Finally, someone goes to merge D & E. Does git detect the conflict?
+#
+# B D
+# o---o
+# / \ / \
+# A o X ? F
+# \ / \ /
+# o---o
+# C E
+#
+
+test_expect_success 'setup differently handled merges of rename/add conflict' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ printf "0\n1\n2\n3\n4\n5\n6\n7\n8\n9\n" >a &&
+ git add a &&
+ test_tick && git commit -m A &&
+
+ git branch B &&
+ git checkout -b C &&
+ echo 10 >>a &&
+ echo "other content" >>new_a &&
+ git add a new_a &&
+ test_tick && git commit -m C &&
+
+ git checkout B &&
+ git mv a new_a &&
+ test_tick && git commit -m B &&
+
+ git checkout B^0 &&
+ test_must_fail git merge C &&
+ git clean -f &&
+ test_tick && git commit -m D &&
+ git tag D &&
+
+ git checkout C^0 &&
+ test_must_fail git merge B &&
+ rm new_a~HEAD new_a &&
+ printf "Incorrectly merged content" >>new_a &&
+ git add -u &&
+ test_tick && git commit -m E &&
+ git tag E
+'
+
+test_expect_success 'git detects differently handled merges conflict' '
+ git reset --hard &&
+ git checkout D^0 &&
+
+ git merge -s recursive E^0 && {
+ echo "BAD: should have conflicted"
+ test "Incorrectly merged content" = "$(cat new_a)" &&
+ echo "BAD: Silently accepted wrong content"
+ return 1
+ }
+
+ test 3 = $(git ls-files -s | wc -l) &&
+ test 3 = $(git ls-files -u | wc -l) &&
+ test 0 = $(git ls-files -o | wc -l) &&
+
+ test $(git rev-parse :2:new_a) = $(git rev-parse D:new_a) &&
+ test $(git rev-parse :3:new_a) = $(git rev-parse E:new_a) &&
+
+ git cat-file -p B:new_a >>merged &&
+ git cat-file -p C:new_a >>merge-me &&
+ >empty &&
+ test_must_fail git merge-file \
+ -L "Temporary merge branch 2" \
+ -L "" \
+ -L "Temporary merge branch 1" \
+ merged empty merge-me &&
+ test $(git rev-parse :1:new_a) = $(git hash-object merged)
'
test_done