enum rename_type {
RENAME_NORMAL = 0,
RENAME_DELETE,
+ RENAME_ONE_FILE_TO_ONE,
RENAME_ONE_FILE_TO_TWO
};
-struct rename_df_conflict_info {
+struct rename_conflict_info {
enum rename_type rename_type;
struct diff_filepair *pair1;
struct diff_filepair *pair2;
unsigned mode;
unsigned char sha[20];
} stages[4];
- struct rename_df_conflict_info *rename_df_conflict_info;
+ struct rename_conflict_info *rename_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)
+static inline void setup_rename_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));
+ struct rename_conflict_info *ci = xcalloc(1, sizeof(struct rename_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->rename_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;
+ dst_entry2->rename_conflict_info = ci;
}
}
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
if (ce_stage(ce))
- fprintf(stderr, "BUG: %d %.*s", ce_stage(ce),
+ fprintf(stderr, "BUG: %d %.*s\n", ce_stage(ce),
(int)ce_namelen(ce), ce->name);
}
die("Bug in merge-recursive.c");
return unmerged;
}
-static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
- struct string_list *entries)
+static int string_list_df_name_compare(const void *a, const void *b)
{
- /* 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.
+ const struct string_list_item *one = a;
+ const struct string_list_item *two = b;
+ int onelen = strlen(one->string);
+ int twolen = strlen(two->string);
+ /*
+ * Here we only care that entries for D/F conflicts are
+ * adjacent, in particular with the file of the D/F conflict
+ * appearing before files below the corresponding directory.
+ * The order of the rest of the list is irrelevant for us.
*
- * 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.
+ * To achieve this, we sort with df_name_compare and provide
+ * the mode S_IFDIR so that D/F conflicts will sort correctly.
+ * We use the mode S_IFDIR for everything else for simplicity,
+ * since in other cases any changes in their order due to
+ * sorting cause no problems for us.
+ */
+ int cmp = df_name_compare(one->string, onelen, S_IFDIR,
+ two->string, twolen, S_IFDIR);
+ /*
+ * Now that 'foo' and 'foo/bar' compare equal, we have to make sure
+ * that 'foo' comes before 'foo/bar'.
+ */
+ if (cmp)
+ return cmp;
+ return onelen - twolen;
+}
+
+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 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;
- struct stage_data *last_e;
int i;
+ /*
+ * If we're merging merge-bases, we don't want to bother with
+ * any working directory changes.
+ */
+ if (o->call_depth)
+ return;
+
+ /* Ensure D/F conflicts are adjacent in the entries list. */
+ qsort(entries->items, entries->nr, sizeof(*entries->items),
+ string_list_df_name_compare);
+
+ string_list_clear(&o->df_conflict_file_set, 1);
for (i = 0; i < entries->nr; i++) {
const char *path = entries->items[i].string;
int len = strlen(path);
/*
* 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 so, record that it's okay to remove last_file to make
+ * room for path and friends if needed.
*/
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);
+ string_list_insert(&o->df_conflict_file_set, last_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;
}
opts.detect_rename = DIFF_DETECT_RENAME;
opts.rename_limit = o->merge_rename_limit >= 0 ? o->merge_rename_limit :
o->diff_rename_limit >= 0 ? o->diff_rename_limit :
- 500;
+ 1000;
opts.rename_score = o->rename_score;
- opts.warn_on_too_large_rename = 1;
+ opts.show_rename_progress = o->show_rename_progress;
opts.output_format = DIFF_FORMAT_NO_OUTPUT;
if (diff_setup_done(&opts) < 0)
die("diff setup failed");
diff_tree_sha1(o_tree->object.sha1, tree->object.sha1, "", &opts);
diffcore_std(&opts);
+ if (opts.needed_rename_limit > o->needed_rename_limit)
+ o->needed_rename_limit = opts.needed_rename_limit;
for (i = 0; i < diff_queued_diff.nr; ++i) {
struct string_list_item *item;
struct rename *re;
return renames;
}
-static int update_stages_options(const char *path, struct diff_filespec *o,
- struct diff_filespec *a, struct diff_filespec *b,
- int clear, int options)
+static int update_stages(const char *path, const struct diff_filespec *o,
+ const struct diff_filespec *a,
+ const struct diff_filespec *b)
{
+ int clear = 1;
+ int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_SKIP_DFCHECK;
if (clear)
if (remove_file_from_cache(path))
return -1;
return 0;
}
-static int update_stages(const char *path, struct diff_filespec *o,
- struct diff_filespec *a, struct diff_filespec *b,
- int clear)
+static void update_entry(struct stage_data *entry,
+ struct diff_filespec *o,
+ struct diff_filespec *a,
+ struct diff_filespec *b)
{
- 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;
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,
}
}
-static int would_lose_untracked(const char *path)
+static int dir_in_way(const char *path, int check_working_copy)
+{
+ int pos, pathlen = strlen(path);
+ char *dirpath = xmalloc(pathlen + 2);
+ struct stat st;
+
+ strcpy(dirpath, path);
+ dirpath[pathlen] = '/';
+ dirpath[pathlen+1] = '\0';
+
+ pos = cache_name_pos(dirpath, pathlen+1);
+
+ if (pos < 0)
+ pos = -1 - pos;
+ if (pos < active_nr &&
+ !strncmp(dirpath, active_cache[pos]->name, pathlen+1)) {
+ free(dirpath);
+ return 1;
+ }
+
+ free(dirpath);
+ return check_working_copy && !lstat(path, &st) && S_ISDIR(st.st_mode);
+}
+
+static int was_tracked(const char *path)
{
int pos = cache_name_pos(path, strlen(path));
switch (ce_stage(active_cache[pos])) {
case 0:
case 2:
- return 0;
+ return 1;
}
pos++;
}
- return file_exists(path);
+ return 0;
}
-static int make_room_for_path(const char *path)
+static int would_lose_untracked(const char *path)
{
- int status;
+ return !was_tracked(path) && file_exists(path);
+}
+
+static int make_room_for_path(struct merge_options *o, const char *path)
+{
+ int status, i;
const char *msg = "failed to create path '%s'%s";
+ /* Unlink any D/F conflict files that are in the way */
+ for (i = 0; i < o->df_conflict_file_set.nr; i++) {
+ const char *df_path = o->df_conflict_file_set.items[i].string;
+ size_t pathlen = strlen(path);
+ size_t df_pathlen = strlen(df_path);
+ if (df_pathlen < pathlen &&
+ path[df_pathlen] == '/' &&
+ strncmp(path, df_path, df_pathlen) == 0) {
+ output(o, 3,
+ "Removing %s to make room for subdirectory\n",
+ df_path);
+ unlink(df_path);
+ unsorted_string_list_delete_item(&o->df_conflict_file_set,
+ i, 0);
+ break;
+ }
+ }
+
+ /* Make sure leading directories are created */
status = safe_create_leading_directories_const(path);
if (status) {
if (status == -3) {
}
}
- if (make_room_for_path(path) < 0) {
+ if (make_room_for_path(o, path) < 0) {
update_wd = 0;
free(buf);
goto update_index;
static int merge_3way(struct merge_options *o,
mmbuffer_t *result_buf,
- struct diff_filespec *one,
- struct diff_filespec *a,
- struct diff_filespec *b,
+ const struct diff_filespec *one,
+ const struct diff_filespec *a,
+ const struct diff_filespec *b,
const char *branch1,
const char *branch2)
{
}
static struct merge_file_info merge_file(struct merge_options *o,
- struct diff_filespec *one,
- struct diff_filespec *a,
- struct diff_filespec *b,
+ const struct diff_filespec *one,
+ const struct diff_filespec *a,
+ const struct diff_filespec *b,
const char *branch1,
const char *branch2)
{
{
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",
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)) {
+ 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;
}
/* One file was renamed in both branches, but to different names. */
char *del[2];
int delp = 0;
+ const char *src = pair1->one->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;
- struct stat st;
- if (lstat(ren1_dst, &st) == 0 && S_ISDIR(st.st_mode)) {
+
+ output(o, 1, "CONFLICT (rename/rename): "
+ "Rename \"%s\"->\"%s\" in branch \"%s\" "
+ "rename \"%s\"->\"%s\" in \"%s\"%s",
+ src, pair1->two->path, branch1,
+ src, pair2->two->path, branch2,
+ o->call_depth ? " (left unresolved)" : "");
+ if (o->call_depth) {
+ /*
+ * FIXME: Why remove file from cache, and then
+ * immediately readd it? Why not just overwrite using
+ * update_file only? Also...this is buggy for
+ * rename/add-source situations...
+ */
+ remove_file_from_cache(src);
+ update_file(o, 0, pair1->one->sha1, pair1->one->mode, src);
+ }
+
+ if (dir_in_way(ren1_dst, !o->call_depth)) {
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);
}
- if (lstat(ren2_dst, &st) == 0 && S_ISDIR(st.st_mode)) {
+ if (dir_in_way(ren2_dst, !o->call_depth)) {
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);
* update_file(o, 0, pair2->two->sha1, pair2->two->mode, dst_name2);
*/
} else {
- update_stages(ren1_dst, NULL, pair1->two, NULL, 1);
- update_stages(ren2_dst, NULL, NULL, pair2->two, 1);
+ update_stages(ren1_dst, NULL, pair1->two, NULL);
+ update_stages(ren2_dst, NULL, NULL, pair2->two);
update_file(o, 0, pair1->two->sha1, pair1->two->mode, dst_name1);
update_file(o, 0, pair2->two->sha1, pair2->two->mode, dst_name2);
struct rename *ren2,
const char *branch2)
{
+ char *path = ren1->pair->two->path; /* same as ren2->pair->two->path */
/* 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",
- ren1->pair->one->path, new_path1,
- ren2->pair->one->path, new_path2);
- remove_file(o, 0, ren1->pair->two->path, 0);
- update_file(o, 0, ren1->pair->two->sha1, ren1->pair->two->mode, new_path1);
- update_file(o, 0, ren2->pair->two->sha1, ren2->pair->two->mode, new_path2);
- free(new_path2);
- free(new_path1);
+ if (o->call_depth) {
+ struct merge_file_info mfi;
+ struct diff_filespec one, a, b;
+
+ one.path = a.path = b.path = path;
+ hashcpy(one.sha1, null_sha1);
+ one.mode = 0;
+ hashcpy(a.sha1, ren1->pair->two->sha1);
+ a.mode = ren1->pair->two->mode;
+ hashcpy(b.sha1, ren2->pair->two->sha1);
+ b.mode = ren2->pair->two->mode;
+ mfi = merge_file(o, &one, &a, &b, branch1, branch2);
+ output(o, 1, "Adding merged %s", path);
+ update_file(o, 0, mfi.sha, mfi.mode, path);
+ } else {
+ char *new_path1 = unique_path(o, path, branch1);
+ char *new_path2 = unique_path(o, path, branch2);
+ output(o, 1, "Renaming %s to %s and %s to %s instead",
+ ren1->pair->one->path, new_path1,
+ ren2->pair->one->path, new_path2);
+ remove_file(o, 0, path, 0);
+ update_file(o, 0, ren1->pair->two->sha1, ren1->pair->two->mode,
+ new_path1);
+ update_file(o, 0, ren2->pair->two->sha1, ren2->pair->two->mode,
+ new_path2);
+ free(new_path2);
+ free(new_path1);
+ }
}
static int process_renames(struct merge_options *o,
for (i = 0; i < a_renames->nr; i++) {
sre = a_renames->items[i].util;
string_list_insert(&a_by_dst, sre->pair->two->path)->util
- = sre->dst_entry;
+ = (void *)sre;
}
for (i = 0; i < b_renames->nr; i++) {
sre = b_renames->items[i].util;
string_list_insert(&b_by_dst, sre->pair->two->path)->util
- = sre->dst_entry;
+ = (void *)sre;
}
for (i = 0, j = 0; i < a_renames->nr || j < b_renames->nr;) {
- char *src;
struct string_list *renames1, *renames2Dst;
struct rename *ren1 = NULL, *ren2 = NULL;
const char *branch1, *branch2;
ren2 = ren1;
ren1 = tmp;
}
- src = ren1->pair->one->path;
ren1->dst_entry->processed = 1;
+ /* BUG: We should only mark src_entry as processed if we
+ * are not dealing with a rename + add-source case.
+ */
ren1->src_entry->processed = 1;
if (ren1->processed)
if (ren2) {
const char *ren2_src = ren2->pair->one->path;
const char *ren2_dst = ren2->pair->two->path;
+ enum rename_type rename_type;
/* Renamed in 1 and renamed in 2 */
if (strcmp(ren1_src, ren2_src) != 0)
die("ren1.src != ren2.src");
ren2->dst_entry->processed = 1;
ren2->processed = 1;
if (strcmp(ren1_dst, ren2_dst) != 0) {
- setup_rename_df_conflict_info(RENAME_ONE_FILE_TO_TWO,
- ren1->pair,
- ren2->pair,
- branch1,
- branch2,
- ren1->dst_entry,
- ren2->dst_entry);
+ rename_type = RENAME_ONE_FILE_TO_TWO;
} else {
+ rename_type = RENAME_ONE_FILE_TO_ONE;
+ /* BUG: We should only remove ren1_src in
+ * the base stage (think of rename +
+ * add-source cases).
+ */
remove_file(o, 1, ren1_src, 1);
- update_stages_and_entry(ren1_dst,
- ren1->dst_entry,
- ren1->pair->one,
- ren1->pair->two,
- ren2->pair->two,
- 1 /* clear */);
+ update_entry(ren1->dst_entry,
+ ren1->pair->one,
+ ren1->pair->two,
+ ren2->pair->two);
}
+ setup_rename_conflict_info(rename_type,
+ ren1->pair,
+ ren2->pair,
+ branch1,
+ branch2,
+ ren1->dst_entry,
+ ren2->dst_entry);
} else {
/* Renamed in 1, maybe changed in 2 */
struct string_list_item *item;
int renamed_stage = a_renames == renames1 ? 2 : 3;
int other_stage = a_renames == renames1 ? 3 : 2;
- remove_file(o, 1, ren1_src, o->call_depth || renamed_stage == 2);
+ /* BUG: We should only remove ren1_src in the base
+ * stage and in other_stage (think of rename +
+ * add-source case).
+ */
+ remove_file(o, 1, ren1_src,
+ renamed_stage == 2 || !was_tracked(ren1_src));
hashcpy(src_other.sha1, ren1->src_entry->stages[other_stage].sha);
src_other.mode = ren1->src_entry->stages[other_stage].mode;
try_merge = 0;
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);
- }
+ setup_rename_conflict_info(RENAME_DELETE,
+ ren1->pair,
+ NULL,
+ branch1,
+ branch2,
+ ren1->dst_entry,
+ NULL);
+ } else if ((item = string_list_lookup(renames2Dst, ren1_dst))) {
+ char *ren2_src, *ren2_dst;
+ ren2 = item->util;
+ ren2_src = ren2->pair->one->path;
+ ren2_dst = ren2->pair->two->path;
+
+ clean_merge = 0;
+ ren2->processed = 1;
+ remove_file(o, 1, ren2_src,
+ renamed_stage == 3 || would_lose_untracked(ren1_src));
+
+ output(o, 1, "CONFLICT (rename/rename): "
+ "Rename %s->%s in %s. "
+ "Rename %s->%s in %s",
+ ren1_src, ren1_dst, branch1,
+ ren2_src, ren2_dst, branch2);
+ conflict_rename_rename_2to1(o, ren1, branch1, ren2, 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
renamed: clean merge */
update_file(o, 1, ren1->pair->two->sha1, ren1->pair->two->mode, ren1_dst);
} else if (!sha_eq(dst_other.sha1, null_sha1)) {
- const char *new_path;
clean_merge = 0;
try_merge = 1;
output(o, 1, "CONFLICT (rename/add): Rename %s->%s in %s. "
ren1_dst);
try_merge = 0;
} else {
- new_path = unique_path(o, ren1_dst, branch2);
+ char *new_path = unique_path(o, ren1_dst, branch2);
output(o, 1, "Adding as %s instead", new_path);
update_file(o, 0, dst_other.sha1, dst_other.mode, new_path);
+ free(new_path);
}
- } else if ((item = string_list_lookup(renames2Dst, ren1_dst))) {
- ren2 = item->util;
- clean_merge = 0;
- ren2->processed = 1;
- output(o, 1, "CONFLICT (rename/rename): "
- "Rename %s->%s in %s. "
- "Rename %s->%s in %s",
- ren1_src, ren1_dst, branch1,
- ren2->pair->one->path, ren2->pair->two->path, branch2);
- conflict_rename_rename_2to1(o, ren1, branch1, ren2, branch2);
} else
try_merge = 1;
b = ren1->pair->two;
a = &src_other;
}
- 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);
- }
+ update_entry(ren1->dst_entry, one, a, b);
+ setup_rename_conflict_info(RENAME_NORMAL,
+ ren1->pair,
+ NULL,
+ branch1,
+ NULL,
+ ren1->dst_entry,
+ NULL);
}
}
}
static void handle_delete_modify(struct merge_options *o,
const char *path,
- const char *new_path,
+ unsigned char *o_sha, int o_mode,
unsigned char *a_sha, int a_mode,
unsigned char *b_sha, int b_mode)
{
- if (!a_sha) {
+ 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,
- path == new_path ? "" : " at ",
- path == new_path ? "" : new_path);
- update_file(o, 0, b_sha, b_mode, new_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,
- path == new_path ? "" : " at ",
- path == new_path ? "" : new_path);
- update_file(o, 0, a_sha, a_mode, new_path);
+ NULL == renamed ? "" : " at ",
+ NULL == renamed ? "" : renamed);
+ update_file(o, 0, a_sha, a_mode, renamed ? renamed : path);
}
+ free(renamed);
+
}
static int merge_content(struct merge_options *o,
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)
+ 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;
- struct stat st;
unsigned df_conflict_remains = 0;
if (!o_sha) {
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 (rename_conflict_info) {
+ struct diff_filepair *pair1 = rename_conflict_info->pair1;
+
+ path1 = (o->branch1 == rename_conflict_info->branch1) ?
+ pair1->two->path : pair1->one->path;
+ /* If rename_conflict_info->pair2 != NULL, we are in
+ * RENAME_ONE_FILE_TO_ONE case. Otherwise, we have a
+ * normal rename.
+ */
+ 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(o, &one, &a, &b,
+ side1 ? side1 : o->branch1, side2 ? side2 : o->branch2);
+ free(side1);
+ free(side2);
if (mfi.clean && !df_conflict_remains &&
- sha_eq(mfi.sha, a_sha) && mfi.mode == a.mode)
+ sha_eq(mfi.sha, a_sha) && mfi.mode == a_mode) {
+ int path_renamed_outside_HEAD;
output(o, 3, "Skipped %s (merged same as existing)", path);
- else
+ /*
+ * 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) {
+ add_cacheinfo(mfi.mode, mfi.sha, path,
+ 0 /*stage*/, 1 /*refresh*/, 0 /*options*/);
+ return mfi.clean;
+ }
+ } else
output(o, 2, "Auto-merging %s", path);
if (!mfi.clean) {
reason = "submodule";
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 (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;
+ char *new_path;
+ if (o->call_depth) {
+ remove_file_from_cache(path);
+ } else {
+ if (!mfi.clean)
+ update_stages(path, &one, &a, &b);
+ else {
+ int file_from_stage2 = was_tracked(path);
+ struct diff_filespec merged;
+ hashcpy(merged.sha1, mfi.sha);
+ merged.mode = mfi.mode;
+
+ update_stages(path, NULL,
+ file_from_stage2 ? &merged : NULL,
+ file_from_stage2 ? NULL : &merged);
+ }
+
+ }
+ new_path = unique_path(o, path, rename_conflict_info->branch1);
output(o, 1, "Adding as %s instead", new_path);
- update_file_flags(o, mfi.sha, mfi.mode, new_path, 0, 1);
+ update_file(o, 0, mfi.sha, mfi.mode, new_path);
+ free(new_path);
+ mfi.clean = 0;
} else {
update_file(o, mfi.clean, mfi.sha, mfi.mode, path);
}
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 (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;
- 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 (string_list_has_string(&o->current_directory_set, path)) {
- /* 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, 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);
- struct stat st;
-
- entry->processed = 1;
- if (entry->rename_df_conflict_info) {
- struct rename_df_conflict_info *conflict_info = entry->rename_df_conflict_info;
- char *src;
+ if (entry->rename_conflict_info) {
+ struct rename_conflict_info *conflict_info = entry->rename_conflict_info;
switch (conflict_info->rename_type) {
case RENAME_NORMAL:
+ case RENAME_ONE_FILE_TO_ONE:
clean_merge = merge_content(o, path,
o_sha, o_mode, a_sha, a_mode, b_sha, b_mode,
- conflict_info->branch1);
+ conflict_info);
break;
case RENAME_DELETE:
clean_merge = 0;
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;
- 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) */
+ /* 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 */
+ clean_merge = 0;
+ handle_delete_modify(o, path, o_sha, o_mode,
+ 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. */
+ /* [nothing|directory] -> ([nothing|directory], file) */
+
const char *add_branch;
const char *other_branch;
unsigned 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 (dir_in_way(path, !o->call_depth)) {
+ 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);
+ if (o->call_depth)
+ remove_file_from_cache(path);
update_file(o, 0, sha, mode, new_path);
+ if (o->call_depth)
+ remove_file_from_cache(path);
+ free(new_path);
} else {
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, 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;
}
get_files_dirs(o, merge);
entries = get_unmerged();
- make_room_for_directories_of_df_conflicts(o, entries);
+ record_df_conflict_files(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);
- 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
&& !process_entry(o, path, e))
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)
commit_list_insert(h2, &(*result)->parents->next);
}
flush_output(o);
+ if (show(o, 2))
+ diff_warn_rename_limit("merge.renamelimit",
+ o->needed_rename_limit, 0);
return clean;
}
static int merge_recursive_config(const char *var, const char *value, void *cb)
{
struct merge_options *o = cb;
- if (!strcasecmp(var, "merge.verbosity")) {
+ if (!strcmp(var, "merge.verbosity")) {
o->verbosity = git_config_int(var, value);
return 0;
}
- if (!strcasecmp(var, "diff.renamelimit")) {
+ if (!strcmp(var, "diff.renamelimit")) {
o->diff_rename_limit = git_config_int(var, value);
return 0;
}
- if (!strcasecmp(var, "merge.renamelimit")) {
+ if (!strcmp(var, "merge.renamelimit")) {
o->merge_rename_limit = git_config_int(var, value);
return 0;
}
o->current_file_set.strdup_strings = 1;
memset(&o->current_directory_set, 0, sizeof(struct string_list));
o->current_directory_set.strdup_strings = 1;
+ memset(&o->df_conflict_file_set, 0, sizeof(struct string_list));
+ o->df_conflict_file_set.strdup_strings = 1;
}
int parse_merge_opt(struct merge_options *o, const char *s)