diff options
author | Junio C Hamano <gitster@pobox.com> | 2008-07-23 09:30:40 +0400 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2008-07-26 08:14:21 +0400 |
commit | 1e5f764c93edfd8f6575b6ede769b079a1fc5a21 (patch) | |
tree | ff51f0d6bad8585db5d2c7f85aa255646369b68a | |
parent | 041aee31be378b3b38e3a0913b29970a7f78873b (diff) |
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>
-rw-r--r-- | builtin-add.c | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/builtin-add.c b/builtin-add.c index 0de516ad95..1834e2d7cd 100644 --- a/builtin-add.c +++ b/builtin-add.c @@ -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"); @@ -223,24 +247,19 @@ 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); + exit_status |= add_files_to_cache(prefix, pathspec, flags); if (add_new_files) exit_status |= add_files(&dir, flags); |