From: Jeff King <peff@peff.net>
To: git@vger.kernel.org
Subject: [PATCH 03/12] update-index: drop unused argc from do_reupdate()
Date: Mon, 17 Oct 2022 21:04:45 -0400 [thread overview]
Message-ID: <Y037rXjvUthkNuCW@coredump.intra.peff.net> (raw)
In-Reply-To: <Y036whEorZV0rOgB@coredump.intra.peff.net>
The parse-options callback for --again soaks up all remaining options by
manipulating the parse_opt_ctx's argc and argv fields. Even though it
has to look at both, the actual parsing happens via the do_reupdate()
helper, which only looks at the argv half (by passing it along to
parse_pathspec). So that helper doesn't need to see argc at all.
Note that the helper does look at "argv + 1" without confirming that
argc is greater than 0. We know this is correct because it is skipping
past the actual "--again" string, which will always be present. However,
to make what's going on more obvious, let's move that "+1" into the
caller, which has the matching "-1" when fixing up the ctx's argc/argv.
Signed-off-by: Jeff King <peff@peff.net>
---
Generate with -U5 so you can see the context I mentioned in
reupdate_callback().
builtin/update-index.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/builtin/update-index.c b/builtin/update-index.c
index b62249905f..7b0c924d7d 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -730,23 +730,23 @@ static int do_unresolve(int ac, const char **av,
free(p);
}
return err;
}
-static int do_reupdate(int ac, const char **av,
+static int do_reupdate(const char **paths,
const char *prefix)
{
/* Read HEAD and run update-index on paths that are
* merged and already different between index and HEAD.
*/
int pos;
int has_head = 1;
struct pathspec pathspec;
parse_pathspec(&pathspec, 0,
PATHSPEC_PREFER_CWD,
- prefix, av + 1);
+ prefix, paths);
if (read_ref("HEAD", &head_oid))
/* If there is no HEAD, that means it is an initial
* commit. Update everything in the index.
*/
@@ -968,11 +968,11 @@ static enum parse_opt_result reupdate_callback(
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
/* consume remaining arguments. */
setup_work_tree();
- *has_errors = do_reupdate(ctx->argc, ctx->argv, prefix);
+ *has_errors = do_reupdate(ctx->argv + 1, prefix);
if (*has_errors)
active_cache_changed = 0;
ctx->argv += ctx->argc - 1;
ctx->argc = 1;
--
2.38.0.371.g300879f34e
next prev parent reply other threads:[~2022-10-18 1:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-18 1:00 [PATCH 0/12] more unused-parameter fixes / annotations Jeff King
2022-10-18 1:01 ` [PATCH 01/12] diffstat_consume(): assert non-zero length Jeff King
2022-10-18 1:02 ` [PATCH 02/12] submodule--helper: drop unused argc from module_list_compute() Jeff King
2022-10-18 1:04 ` Jeff King [this message]
2022-10-18 1:05 ` [PATCH 04/12] mark unused parameters in trivial compat functions Jeff King
2022-10-18 1:05 ` [PATCH 05/12] object-file: mark unused parameters in hash_unknown functions Jeff King
2022-10-18 1:05 ` [PATCH 06/12] string-list: mark unused callback parameters Jeff King
2022-10-18 1:05 ` [PATCH 07/12] date: mark unused parameters in handler functions Jeff King
2022-10-18 1:08 ` [PATCH 08/12] apply: mark unused parameters in handlers Jeff King
2022-10-18 1:08 ` [PATCH 09/12] apply: mark unused parameters in noop error/warning routine Jeff King
2022-10-18 1:08 ` [PATCH 10/12] convert: mark unused parameter in null stream filter Jeff King
2022-10-18 1:09 ` [PATCH 11/12] diffcore-pickaxe: mark unused parameters in pickaxe functions Jeff King
2022-10-18 1:10 ` [PATCH 12/12] ll-merge: mark unused parameters in callbacks Jeff King
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