mirror of
https://github.com/git/git
synced 2024-08-27 11:39:22 +00:00
builtin-add.c: optimize -A option and "git add ."
The earlier "git add -A" change was done in a quite inefficient way (i.e. it is as unefficient as "git add -u && git add ." modulo one fork/exec and read/write index). When the user asks "git add .", we do not have to examine all paths we encounter and perform the excluded() and dir_add_name() processing, both of which are slower code and use slower data structure by git standards, especially when the index is already populated. Instead, we implement "git add $pathspec..." as: - read the index; - read_directory() to process untracked, unignored files the current way, that is, recursively doing readdir(), filtering them by pathspec and excluded(), queueing them via dir_add_name() and finally do add_files(); and - iterate over the index, filtering them by pathspec, and update only the modified/type changed paths but not deleted ones. And "git add -A" becomes exactly the same as above, modulo: - missing $pathspec means "." instead of being an error; and - "iterate over the index" part handles deleted ones as well, i.e. exactly what the current update_callback() in builtin-add.c does. In either case, because fill_directory() does not use read_directory() to read everything in, we need to add an extra logic to iterate over the index to catch mistyped pathspec. Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
parent
041aee31be
commit
1e5f764c93
|
@ -18,6 +18,27 @@ static const char * const builtin_add_usage[] = {
|
|||
static int patch_interactive = 0, add_interactive = 0;
|
||||
static int take_worktree_changes;
|
||||
|
||||
static void fill_pathspec_matches(const char **pathspec, char *seen, int specs)
|
||||
{
|
||||
int num_unmatched = 0, i;
|
||||
|
||||
/*
|
||||
* Since we are walking the index as if we are warlking the directory,
|
||||
* we have to mark the matched pathspec as seen; otherwise we will
|
||||
* mistakenly think that the user gave a pathspec that did not match
|
||||
* anything.
|
||||
*/
|
||||
for (i = 0; i < specs; i++)
|
||||
if (!seen[i])
|
||||
num_unmatched++;
|
||||
if (!num_unmatched)
|
||||
return;
|
||||
for (i = 0; i < active_nr; i++) {
|
||||
struct cache_entry *ce = active_cache[i];
|
||||
match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen);
|
||||
}
|
||||
}
|
||||
|
||||
static void prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
|
||||
{
|
||||
char *seen;
|
||||
|
@ -37,6 +58,7 @@ static void prune_directory(struct dir_struct *dir, const char **pathspec, int p
|
|||
*dst++ = entry;
|
||||
}
|
||||
dir->nr = dst - dir->entries;
|
||||
fill_pathspec_matches(pathspec, seen, specs);
|
||||
|
||||
for (i = 0; i < specs; i++) {
|
||||
if (!seen[i] && !file_exists(pathspec[i]))
|
||||
|
@ -201,7 +223,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
|
|||
|
||||
if (addremove && take_worktree_changes)
|
||||
die("-A and -u are mutually incompatible");
|
||||
if (addremove && !argc) {
|
||||
if ((addremove || take_worktree_changes) && !argc) {
|
||||
static const char *here[2] = { ".", NULL };
|
||||
argc = 1;
|
||||
argv = here;
|
||||
|
@ -214,7 +236,9 @@ int cmd_add(int argc, const char **argv, const char *prefix)
|
|||
|
||||
flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
|
||||
(show_only ? ADD_CACHE_PRETEND : 0) |
|
||||
(ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0));
|
||||
(ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
|
||||
(!(addremove || take_worktree_changes)
|
||||
? ADD_CACHE_IGNORE_REMOVAL : 0));
|
||||
|
||||
if (require_pathspec && argc == 0) {
|
||||
fprintf(stderr, "Nothing specified, nothing added.\n");
|
||||
|
@ -223,23 +247,18 @@ int cmd_add(int argc, const char **argv, const char *prefix)
|
|||
}
|
||||
pathspec = get_pathspec(prefix, argv);
|
||||
|
||||
/*
|
||||
* If we are adding new files, we need to scan the working
|
||||
* tree to find the ones that match pathspecs; this needs
|
||||
* to be done before we read the index.
|
||||
*/
|
||||
if (add_new_files)
|
||||
fill_directory(&dir, pathspec, ignored_too);
|
||||
|
||||
if (read_cache() < 0)
|
||||
die("index file corrupt");
|
||||
|
||||
if (add_new_files)
|
||||
/* This picks up the paths that are not tracked */
|
||||
fill_directory(&dir, pathspec, ignored_too);
|
||||
|
||||
if (refresh_only) {
|
||||
refresh(verbose, pathspec);
|
||||
goto finish;
|
||||
}
|
||||
|
||||
if (take_worktree_changes || addremove)
|
||||
exit_status |= add_files_to_cache(prefix, pathspec, flags);
|
||||
|
||||
if (add_new_files)
|
||||
|
|
Loading…
Reference in a new issue