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authorJonathan Nieder <jrnieder@gmail.com>2013-03-19 15:50:50 -0700
committerJunio C Hamano <gitster@pobox.com>2013-04-03 11:34:22 -0700
commit71c7b0538f8f037e49a04f415a6fbf0bba2c85ad (patch)
tree71f7c97f0bd3b7efd3e51134773f7ff569a4e1e8 /builtin
parent16d41d42184a4c82d2cd8c41e9eef9784cf437b1 (diff)
downloadgit-71c7b0538f8f037e49a04f415a6fbf0bba2c85ad.tar.gz
git-71c7b0538f8f037e49a04f415a6fbf0bba2c85ad.tar.xz
add -u: only show pathless 'add -u' warning when changes exist outside cwd
A common workflow in large projects is to chdir into a subdirectory of interest and only do work there: cd src vi foo.c make test git add -u git commit The upcoming change to 'git add -u' behavior would not affect such a workflow: when the only changes present are in the current directory, 'git add -u' will add all changes, and whether that happens via an implicit "." or implicit ":/" parameter is an unimportant implementation detail. The warning about use of 'git add -u' with no pathspec is annoying because it seemingly serves no purpose in this case. So suppress the warning unless there are changes outside the cwd that are not being added. A previous version of this patch ran two I/O-intensive diff-files passes: one to find changes outside the cwd, and another to find changes to add to the index within the cwd. This version runs one full-tree diff and decides for each change whether to add it or warn and suppress it in update_callback. As a result, even on very large repositories "git add -u" will not be significantly slower than the future default behavior ("git add -u :/"), and the slowdown relative to "git add -u ." should be a useful clue to users of such repositories to get into the habit of explicitly passing '.'. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Jeff King <peff@peff.net> Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin')
-rw-r--r--builtin/add.c41
1 files changed, 37 insertions, 4 deletions
diff --git a/builtin/add.c b/builtin/add.c
index bfc6ff3b0..0a07ad625 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -26,6 +26,8 @@ static int take_worktree_changes;
struct update_callback_data {
int flags;
int add_errors;
+ const char *implicit_dot;
+ size_t implicit_dot_len;
};
static const char *option_with_implicit_dot;
@@ -96,10 +98,26 @@ static void update_callback(struct diff_queue_struct *q,
{
int i;
struct update_callback_data *data = cbdata;
+ const char *implicit_dot = data->implicit_dot;
+ size_t implicit_dot_len = data->implicit_dot_len;
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
const char *path = p->one->path;
+ /*
+ * Check if "git add -A" or "git add -u" was run from a
+ * subdirectory with a modified file outside that directory,
+ * and warn if so.
+ *
+ * "git add -u" will behave like "git add -u :/" instead of
+ * "git add -u ." in the future. This warning prepares for
+ * that change.
+ */
+ if (implicit_dot &&
+ strncmp_icase(path, implicit_dot, implicit_dot_len)) {
+ warn_pathless_add();
+ continue;
+ }
switch (fix_unmerged_status(p, data)) {
default:
die(_("unexpected diff status %c"), p->status);
@@ -127,13 +145,25 @@ int add_files_to_cache(const char *prefix, const char **pathspec, int flags)
{
struct update_callback_data data;
struct rev_info rev;
+
+ memset(&data, 0, sizeof(data));
+ data.flags = flags & ~ADD_CACHE_IMPLICIT_DOT;
+ if ((flags & ADD_CACHE_IMPLICIT_DOT) && prefix) {
+ /*
+ * Check for modified files throughout the worktree so
+ * update_callback has a chance to warn about changes
+ * outside the cwd.
+ */
+ data.implicit_dot = prefix;
+ data.implicit_dot_len = strlen(prefix);
+ pathspec = NULL;
+ }
+
init_revisions(&rev, prefix);
setup_revisions(0, NULL, &rev, NULL);
init_pathspec(&rev.prune_data, pathspec);
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = update_callback;
- data.flags = flags;
- data.add_errors = 0;
rev.diffopt.format_callback_data = &data;
rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
@@ -373,6 +403,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
int add_new_files;
int require_pathspec;
char *seen = NULL;
+ int implicit_dot = 0;
git_config(add_config, NULL);
@@ -402,10 +433,11 @@ int cmd_add(int argc, const char **argv, const char *prefix)
}
if (option_with_implicit_dot && !argc) {
static const char *here[2] = { ".", NULL };
- if (prefix)
+ if (prefix && addremove)
warn_pathless_add();
argc = 1;
argv = here;
+ implicit_dot = 1;
}
add_new_files = !take_worktree_changes && !refresh_only;
@@ -418,7 +450,8 @@ int cmd_add(int argc, const char **argv, const char *prefix)
(intent_to_add ? ADD_CACHE_INTENT : 0) |
(ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
(!(addremove || take_worktree_changes)
- ? ADD_CACHE_IGNORE_REMOVAL : 0));
+ ? ADD_CACHE_IGNORE_REMOVAL : 0)) |
+ (implicit_dot ? ADD_CACHE_IMPLICIT_DOT : 0);
if (require_pathspec && argc == 0) {
fprintf(stderr, _("Nothing specified, nothing added.\n"));