};
static int path_hashmap_cmp(const void *cmp_data,
- const void *entry,
- const void *entry_or_key,
+ const struct hashmap_entry *eptr,
+ const struct hashmap_entry *entry_or_key,
const void *keydata)
{
- const struct path_hashmap_entry *a = entry;
- const struct path_hashmap_entry *b = entry_or_key;
+ const struct path_hashmap_entry *a, *b;
const char *key = keydata;
+ a = container_of(eptr, const struct path_hashmap_entry, e);
+ b = container_of(entry_or_key, const struct path_hashmap_entry, e);
+
if (ignore_case)
return strcasecmp(a->path, key ? key : b->path);
else
* in get_directory_renames() for details
*/
struct dir_rename_entry {
- struct hashmap_entry ent; /* must be the first member! */
+ struct hashmap_entry ent;
char *dir;
unsigned non_unique_new_dir:1;
struct strbuf new_dir;
if (dir == NULL)
return NULL;
- hashmap_entry_init(&key, strhash(dir));
+ hashmap_entry_init(&key.ent, strhash(dir));
key.dir = dir;
- return hashmap_get(hashmap, &key, NULL);
+ return hashmap_get_entry(hashmap, &key, ent, NULL);
}
static int dir_rename_cmp(const void *unused_cmp_data,
- const void *entry,
- const void *entry_or_key,
+ const struct hashmap_entry *eptr,
+ const struct hashmap_entry *entry_or_key,
const void *unused_keydata)
{
- const struct dir_rename_entry *e1 = entry;
- const struct dir_rename_entry *e2 = entry_or_key;
+ const struct dir_rename_entry *e1, *e2;
+
+ e1 = container_of(eptr, const struct dir_rename_entry, ent);
+ e2 = container_of(entry_or_key, const struct dir_rename_entry, ent);
return strcmp(e1->dir, e2->dir);
}
static void dir_rename_entry_init(struct dir_rename_entry *entry,
char *directory)
{
- hashmap_entry_init(entry, strhash(directory));
+ hashmap_entry_init(&entry->ent, strhash(directory));
entry->dir = directory;
entry->non_unique_new_dir = 0;
strbuf_init(&entry->new_dir, 0);
}
struct collision_entry {
- struct hashmap_entry ent; /* must be the first member! */
+ struct hashmap_entry ent;
char *target_file;
struct string_list source_files;
unsigned reported_already:1;
{
struct collision_entry key;
- hashmap_entry_init(&key, strhash(target_file));
+ hashmap_entry_init(&key.ent, strhash(target_file));
key.target_file = target_file;
- return hashmap_get(hashmap, &key, NULL);
+ return hashmap_get_entry(hashmap, &key, ent, NULL);
}
-static int collision_cmp(void *unused_cmp_data,
- const struct collision_entry *e1,
- const struct collision_entry *e2,
+static int collision_cmp(const void *unused_cmp_data,
+ const struct hashmap_entry *eptr,
+ const struct hashmap_entry *entry_or_key,
const void *unused_keydata)
{
+ const struct collision_entry *e1, *e2;
+
+ e1 = container_of(eptr, const struct collision_entry, ent);
+ e2 = container_of(entry_or_key, const struct collision_entry, ent);
+
return strcmp(e1->target_file, e2->target_file);
}
static void collision_init(struct hashmap *map)
{
- hashmap_init(map, (hashmap_cmp_fn) collision_cmp, NULL, 0);
+ hashmap_init(map, collision_cmp, NULL, 0);
}
static void flush_output(struct merge_options *opt)
strbuf_addstr(base, path);
FLEX_ALLOC_MEM(entry, path, base->buf, base->len);
- hashmap_entry_init(entry, path_hash(entry->path));
- hashmap_add(&opt->priv->current_file_dir_set, entry);
+ hashmap_entry_init(&entry->e, path_hash(entry->path));
+ hashmap_add(&opt->priv->current_file_dir_set, &entry->e);
strbuf_setlen(base, baselen);
return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0);
}
FLEX_ALLOC_MEM(entry, path, newpath.buf, newpath.len);
- hashmap_entry_init(entry, path_hash(entry->path));
- hashmap_add(&opt->priv->current_file_dir_set, entry);
+ hashmap_entry_init(&entry->e, path_hash(entry->path));
+ hashmap_add(&opt->priv->current_file_dir_set, &entry->e);
return strbuf_detach(&newpath, NULL);
}
return NULL;
oldlen = strlen(entry->dir);
+ if (entry->new_dir.len == 0)
+ /*
+ * If someone renamed/merged a subdirectory into the root
+ * directory (e.g. 'some/subdir' -> ''), then we want to
+ * avoid returning
+ * '' + '/filename'
+ * as the rename; we need to make old_path + oldlen advance
+ * past the '/' character.
+ */
+ oldlen++;
newlen = entry->new_dir.len + (strlen(old_path) - oldlen) + 1;
strbuf_grow(&new_path, newlen);
strbuf_addbuf(&new_path, &entry->new_dir);
char **old_dir, char **new_dir)
{
char *end_of_old, *end_of_new;
- int old_len, new_len;
+ /* Default return values: NULL, meaning no rename */
*old_dir = NULL;
*new_dir = NULL;
* "a/b/c/d" was renamed to "a/b/some/thing/else"
* so, for this example, this function returns "a/b/c/d" in
* *old_dir and "a/b/some/thing/else" in *new_dir.
- *
- * Also, if the basename of the file changed, we don't care. We
- * want to know which portion of the directory, if any, changed.
+ */
+
+ /*
+ * If the basename of the file changed, we don't care. We want
+ * to know which portion of the directory, if any, changed.
*/
end_of_old = strrchr(old_path, '/');
end_of_new = strrchr(new_path, '/');
- if (end_of_old == NULL || end_of_new == NULL)
+ /*
+ * If end_of_old is NULL, old_path wasn't in a directory, so there
+ * could not be a directory rename (our rule elsewhere that a
+ * directory which still exists is not considered to have been
+ * renamed means the root directory can never be renamed -- because
+ * the root directory always exists).
+ */
+ if (end_of_old == NULL)
+ return; /* Note: *old_dir and *new_dir are still NULL */
+
+ /*
+ * If new_path contains no directory (end_of_new is NULL), then we
+ * have a rename of old_path's directory to the root directory.
+ */
+ if (end_of_new == NULL) {
+ *old_dir = xstrndup(old_path, end_of_old - old_path);
+ *new_dir = xstrdup("");
return;
+ }
+
+ /* Find the first non-matching character traversing backwards */
while (*--end_of_new == *--end_of_old &&
end_of_old != old_path &&
end_of_new != new_path)
; /* Do nothing; all in the while loop */
+
/*
- * We've found the first non-matching character in the directory
- * paths. That means the current directory we were comparing
- * represents the rename. Move end_of_old and end_of_new back
- * to the full directory name.
+ * If both got back to the beginning of their strings, then the
+ * directory didn't change at all, only the basename did.
*/
- if (*end_of_old == '/')
- end_of_old++;
- if (*end_of_old != '/')
- end_of_new++;
- end_of_old = strchr(end_of_old, '/');
- end_of_new = strchr(end_of_new, '/');
+ if (end_of_old == old_path && end_of_new == new_path &&
+ *end_of_old == *end_of_new)
+ return; /* Note: *old_dir and *new_dir are still NULL */
/*
- * It may have been the case that old_path and new_path were the same
- * directory all along. Don't claim a rename if they're the same.
+ * If end_of_new got back to the beginning of its string, and
+ * end_of_old got back to the beginning of some subdirectory, then
+ * we have a rename/merge of a subdirectory into the root, which
+ * needs slightly special handling.
+ *
+ * Note: There is no need to consider the opposite case, with a
+ * rename/merge of the root directory into some subdirectory
+ * because as noted above the root directory always exists so it
+ * cannot be considered to be renamed.
*/
- old_len = end_of_old - old_path;
- new_len = end_of_new - new_path;
-
- if (old_len != new_len || strncmp(old_path, new_path, old_len)) {
- *old_dir = xstrndup(old_path, old_len);
- *new_dir = xstrndup(new_path, new_len);
+ if (end_of_new == new_path &&
+ end_of_old != old_path && end_of_old[-1] == '/') {
+ *old_dir = xstrndup(old_path, --end_of_old - old_path);
+ *new_dir = xstrdup("");
+ return;
}
+
+ /*
+ * We've found the first non-matching character in the directory
+ * paths. That means the current characters we were looking at
+ * were part of the first non-matching subdir name going back from
+ * the end of the strings. Get the whole name by advancing both
+ * end_of_old and end_of_new to the NEXT '/' character. That will
+ * represent the entire directory rename.
+ *
+ * The reason for the increment is cases like
+ * a/b/star/foo/whatever.c -> a/b/tar/foo/random.c
+ * After dropping the basename and going back to the first
+ * non-matching character, we're now comparing:
+ * a/b/s and a/b/
+ * and we want to be comparing:
+ * a/b/star/ and a/b/tar/
+ * but without the pre-increment, the one on the right would stay
+ * a/b/.
+ */
+ end_of_old = strchr(++end_of_old, '/');
+ end_of_new = strchr(++end_of_new, '/');
+
+ /* Copy the old and new directories into *old_dir and *new_dir. */
+ *old_dir = xstrndup(old_path, end_of_old - old_path);
+ *new_dir = xstrndup(new_path, end_of_new - new_path);
}
static void remove_hashmap_entries(struct hashmap *dir_renames,
for (i = 0; i < items_to_remove->nr; i++) {
entry = items_to_remove->items[i].util;
- hashmap_remove(dir_renames, entry, NULL);
+ hashmap_remove(dir_renames, &entry->ent, NULL);
}
string_list_clear(items_to_remove, 0);
}
struct string_list remove_from_head = STRING_LIST_INIT_NODUP;
struct string_list remove_from_merge = STRING_LIST_INIT_NODUP;
- hashmap_iter_init(dir_re_head, &iter);
- while ((head_ent = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(dir_re_head, &iter, head_ent,
+ ent /* member name */) {
merge_ent = dir_rename_find_entry(dir_re_merge, head_ent->dir);
if (merge_ent &&
!head_ent->non_unique_new_dir &&
remove_hashmap_entries(dir_re_head, &remove_from_head);
remove_hashmap_entries(dir_re_merge, &remove_from_merge);
- hashmap_iter_init(dir_re_merge, &iter);
- while ((merge_ent = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(dir_re_merge, &iter, merge_ent,
+ ent /* member name */) {
head_ent = dir_rename_find_entry(dir_re_head, merge_ent->dir);
if (tree_has_path(opt->repo, merge, merge_ent->dir)) {
/* 2. This wasn't a directory rename after all */
if (!entry) {
entry = xmalloc(sizeof(*entry));
dir_rename_entry_init(entry, old_dir);
- hashmap_put(dir_renames, entry);
+ hashmap_put(dir_renames, &entry->ent);
} else {
free(old_dir);
}
* we set non_unique_new_dir. Once we've determined the winner (or
* that there is no winner), we no longer need possible_new_dirs.
*/
- hashmap_iter_init(dir_renames, &iter);
- while ((entry = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(dir_renames, &iter, entry,
+ ent /* member name */) {
int max = 0;
int bad_max = 0;
char *best = NULL;
if (!collision_ent) {
collision_ent = xcalloc(1,
sizeof(struct collision_entry));
- hashmap_entry_init(collision_ent, strhash(new_path));
- hashmap_put(collisions, collision_ent);
+ hashmap_entry_init(&collision_ent->ent,
+ strhash(new_path));
+ hashmap_put(collisions, &collision_ent->ent);
collision_ent->target_file = new_path;
} else {
free(new_path);
entries);
}
- hashmap_iter_init(&collisions, &iter);
- while ((e = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(&collisions, &iter, e,
+ ent /* member name */) {
free(e->target_file);
string_list_clear(&e->source_files, 0);
}
- hashmap_free(&collisions, 1);
+ hashmap_free_entries(&collisions, struct collision_entry, ent);
return renames;
}
struct hashmap_iter iter;
struct dir_rename_entry *e;
- hashmap_iter_init(dir_renames, &iter);
- while ((e = hashmap_iter_next(&iter))) {
+ hashmap_for_each_entry(dir_renames, &iter, e,
+ ent /* member name */) {
free(e->dir);
strbuf_release(&e->new_dir);
/* possible_new_dirs already cleared in get_directory_renames */
}
- hashmap_free(dir_renames, 1);
+ hashmap_free_entries(dir_renames, struct dir_rename_entry, ent);
free(dir_renames);
free(pairs->queue);
string_list_clear(entries, 1);
free(entries);
- hashmap_free(&opt->priv->current_file_dir_set, 1);
+ hashmap_free_entries(&opt->priv->current_file_dir_set,
+ struct path_hashmap_entry, e);
if (clean < 0) {
unpack_trees_finish(opt);
projects / thirdparty / git.git / blobdiff