On 03/08, Johannes Schindelin wrote:
> Hi Peff,
>
> On Thu, 7 Mar 2019, Jeff King wrote:
>
> > On Mon, Feb 25, 2019 at 11:16:22PM +0000, Thomas Gummerer wrote:
> >
> > > +static void add_pathspecs(struct argv_array *args,
> > > + struct pathspec ps) {
> >
> > Here and elsewhere in the series, I notice that we pass the pathspec
> > struct by value, which is quite unusual for our codebase (and
> > potentially confusing, if any of the callers were to mutate the pointers
> > in the struct).
> >
> > Is there any reason this shouldn't be "const struct pathspec *ps" pretty
> > much throughout the file?
>
> I am quite certain that this is merely an oversight. It totes slipped
> by my review, for example.
Yep, it slipped by me as well. Here's a patch to fix it:
--- >8 ---
Subject: [PATCH 1/2] stash: pass pathspec as pointer
Passing the pathspec by value is potentially confusing, as the copy is
only a shallow copy, so save the overhead of the copy, and pass the
pathspec struct as a pointer.
In addition use copy_pathspec to copy the pathspec into
rev.prune_data, so the copy is a proper deep copy, and owned by the
revision API, as that's what the API expects.
Reported-by: Jeff King <peff@xxxxxxxx>
Signed-off-by: Thomas Gummerer <t.gummerer@xxxxxxxxx>
---
builtin/stash.c | 50 ++++++++++++++++++++++++-------------------------
1 file changed, 25 insertions(+), 25 deletions(-)
diff --git a/builtin/stash.c b/builtin/stash.c
index 1bfa24030c..6eb67c75c3 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -826,11 +826,11 @@ static int store_stash(int argc, const char **argv, const char *prefix)
}
static void add_pathspecs(struct argv_array *args,
- struct pathspec ps) {
+ const struct pathspec *ps) {
int i;
- for (i = 0; i < ps.nr; i++)
- argv_array_push(args, ps.items[i].match);
+ for (i = 0; i < ps->nr; i++)
+ argv_array_push(args, ps->items[i].match);
}
/*
@@ -840,7 +840,7 @@ static void add_pathspecs(struct argv_array *args,
* = 0 if there are not any untracked files
* > 0 if there are untracked files
*/
-static int get_untracked_files(struct pathspec ps, int include_untracked,
+static int get_untracked_files(const struct pathspec *ps, int include_untracked,
struct strbuf *untracked_files)
{
int i;
@@ -853,12 +853,12 @@ static int get_untracked_files(struct pathspec ps, int include_untracked,
if (include_untracked != INCLUDE_ALL_FILES)
setup_standard_excludes(&dir);
- seen = xcalloc(ps.nr, 1);
+ seen = xcalloc(ps->nr, 1);
- max_len = fill_directory(&dir, the_repository->index, &ps);
+ max_len = fill_directory(&dir, the_repository->index, ps);
for (i = 0; i < dir.nr; i++) {
struct dir_entry *ent = dir.entries[i];
- if (dir_path_match(&the_index, ent, &ps, max_len, seen)) {
+ if (dir_path_match(&the_index, ent, ps, max_len, seen)) {
found++;
strbuf_addstr(untracked_files, ent->name);
/* NUL-terminate: will be fed to update-index -z */
@@ -881,7 +881,7 @@ static int get_untracked_files(struct pathspec ps, int include_untracked,
* = 0 if there are no changes.
* > 0 if there are changes.
*/
-static int check_changes_tracked_files(struct pathspec ps)
+static int check_changes_tracked_files(const struct pathspec *ps)
{
int result;
struct rev_info rev;
@@ -895,7 +895,7 @@ static int check_changes_tracked_files(struct pathspec ps)
return -1;
init_revisions(&rev, NULL);
- rev.prune_data = ps;
+ copy_pathspec(&rev.prune_data, ps);
rev.diffopt.flags.quick = 1;
rev.diffopt.flags.ignore_submodules = 1;
@@ -920,7 +920,7 @@ static int check_changes_tracked_files(struct pathspec ps)
* The function will fill `untracked_files` with the names of untracked files
* It will return 1 if there were any changes and 0 if there were not.
*/
-static int check_changes(struct pathspec ps, int include_untracked,
+static int check_changes(const struct pathspec *ps, int include_untracked,
struct strbuf *untracked_files)
{
int ret = 0;
@@ -974,7 +974,7 @@ static int save_untracked_files(struct stash_info *info, struct strbuf *msg,
return ret;
}
-static int stash_patch(struct stash_info *info, struct pathspec ps,
+static int stash_patch(struct stash_info *info, const struct pathspec *ps,
struct strbuf *out_patch, int quiet)
{
int ret = 0;
@@ -1033,7 +1033,7 @@ static int stash_patch(struct stash_info *info, struct pathspec ps,
return ret;
}
-static int stash_working_tree(struct stash_info *info, struct pathspec ps)
+static int stash_working_tree(struct stash_info *info, const struct pathspec *ps)
{
int ret = 0;
struct rev_info rev;
@@ -1050,7 +1050,7 @@ static int stash_working_tree(struct stash_info *info, struct pathspec ps)
}
set_alternate_index_output(NULL);
- rev.prune_data = ps;
+ copy_pathspec(&rev.prune_data, ps);
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = add_diff_to_buf;
rev.diffopt.format_callback_data = &diff_output;
@@ -1094,7 +1094,7 @@ static int stash_working_tree(struct stash_info *info, struct pathspec ps)
return ret;
}
-static int do_create_stash(struct pathspec ps, struct strbuf *stash_msg_buf,
+static int do_create_stash(const struct pathspec *ps, struct strbuf *stash_msg_buf,
int include_untracked, int patch_mode,
struct stash_info *info, struct strbuf *patch,
int quiet)
@@ -1226,10 +1226,10 @@ static int create_stash(int argc, const char **argv, const char *prefix)
strbuf_join_argv(&stash_msg_buf, argc - 1, ++argv, ' ');
memset(&ps, 0, sizeof(ps));
- if (!check_changes_tracked_files(ps))
+ if (!check_changes_tracked_files(&ps))
return 0;
- ret = do_create_stash(ps, &stash_msg_buf, 0, 0, &info,
+ ret = do_create_stash(&ps, &stash_msg_buf, 0, 0, &info,
NULL, 0);
if (!ret)
printf_ln("%s", oid_to_hex(&info.w_commit));
@@ -1238,7 +1238,7 @@ static int create_stash(int argc, const char **argv, const char *prefix)
return ret;
}
-static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
+static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int quiet,
int keep_index, int patch_mode, int include_untracked)
{
int ret = 0;
@@ -1258,15 +1258,15 @@ static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
}
read_cache_preload(NULL);
- if (!include_untracked && ps.nr) {
+ if (!include_untracked && ps->nr) {
int i;
- char *ps_matched = xcalloc(ps.nr, 1);
+ char *ps_matched = xcalloc(ps->nr, 1);
for (i = 0; i < active_nr; i++)
- ce_path_match(&the_index, active_cache[i], &ps,
+ ce_path_match(&the_index, active_cache[i], ps,
ps_matched);
- if (report_path_error(ps_matched, &ps, NULL)) {
+ if (report_path_error(ps_matched, ps, NULL)) {
fprintf_ln(stderr, _("Did you forget to 'git add'?"));
ret = -1;
free(ps_matched);
@@ -1313,7 +1313,7 @@ static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
stash_msg_buf.buf);
if (!patch_mode) {
- if (include_untracked && !ps.nr) {
+ if (include_untracked && !ps->nr) {
struct child_process cp = CHILD_PROCESS_INIT;
cp.git_cmd = 1;
@@ -1327,7 +1327,7 @@ static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
}
}
discard_cache();
- if (ps.nr) {
+ if (ps->nr) {
struct child_process cp_add = CHILD_PROCESS_INIT;
struct child_process cp_diff = CHILD_PROCESS_INIT;
struct child_process cp_apply = CHILD_PROCESS_INIT;
@@ -1467,7 +1467,7 @@ static int push_stash(int argc, const char **argv, const char *prefix)
0);
parse_pathspec(&ps, 0, PATHSPEC_PREFER_FULL, prefix, argv);
- return do_push_stash(ps, stash_msg, quiet, keep_index, patch_mode,
+ return do_push_stash(&ps, stash_msg, quiet, keep_index, patch_mode,
include_untracked);
}
@@ -1504,7 +1504,7 @@ static int save_stash(int argc, const char **argv, const char *prefix)
stash_msg = strbuf_join_argv(&stash_msg_buf, argc, argv, ' ');
memset(&ps, 0, sizeof(ps));
- ret = do_push_stash(ps, stash_msg, quiet, keep_index,
+ ret = do_push_stash(&ps, stash_msg, quiet, keep_index,
patch_mode, include_untracked);
strbuf_release(&stash_msg_buf);
--
2.21.0.474.g541d9dca55
