From: Ramsay Jones <ramsay@ramsayjones.plus.com>
To: Jeff King <peff@peff.net>, git@vger.kernel.org
Subject: Re: [PATCH 1/6] index-pack: factor out pack/idx finalization
Date: Wed, 15 Mar 2017 22:03:56 +0000 [thread overview]
Message-ID: <f42ba0f5-a879-f63f-1cbd-de268da05966@ramsayjones.plus.com> (raw)
In-Reply-To: <20170315212733.73cw22dm36oc5im4@sigill.intra.peff.net>
On 15/03/17 21:27, Jeff King wrote:
> The procedure for moving the ".pack" and the ".idx" files
> into place is the same. Rather than repeat the code, let's
> factor it into a helper function.
>
> This has the added benefit of clarifying the lifetime of
> "final_pack_name". In the original code it is sometimes
> redirected to our reusable "name" buffer; after we reuse
> that buffer, the contents are nonsense (but nobody looks at
> it, so this is not a bug, just a maintenance issue). In the
> new code, the pointer modification is contained in the
> helper function.
>
> Signed-off-by: Jeff King <peff@peff.net>
> ---
> builtin/index-pack.c | 40 +++++++++++++++++++---------------------
> 1 file changed, 19 insertions(+), 21 deletions(-)
>
> diff --git a/builtin/index-pack.c b/builtin/index-pack.c
> index f4b87c6c9..187c0550c 100644
> --- a/builtin/index-pack.c
> +++ b/builtin/index-pack.c
> @@ -1380,6 +1380,23 @@ static void fix_unresolved_deltas(struct sha1file *f)
> free(sorted_by_pos);
> }
>
> +static void finalize_file(const char *final_name, const char *curr_name,
> + unsigned char *sha1, const char *ext)
> +{
> + if (final_name != curr_name) {
> + char name[PATH_MAX];
> + if (!final_name) {
> + snprintf(name, sizeof(name), "%s/pack/pack-%s.%s",
> + get_object_directory(), sha1_to_hex(sha1),
> + ext);
> + final_name = name;
> + }
> + if (finalize_object_file(curr_name, final_name))
> + die(_("cannot store %s file"), ext);
> + } else if (from_stdin)
> + chmod(final_name, 0444);
> +}
> +
> static void final(const char *final_pack_name, const char *curr_pack_name,
> const char *final_index_name, const char *curr_index_name,
> const char *keep_name, const char *keep_msg,
> @@ -1422,27 +1439,8 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
> }
> }
>
> - if (final_pack_name != curr_pack_name) {
> - if (!final_pack_name) {
> - snprintf(name, sizeof(name), "%s/pack/pack-%s.pack",
> - get_object_directory(), sha1_to_hex(sha1));
> - final_pack_name = name;
> - }
> - if (finalize_object_file(curr_pack_name, final_pack_name))
> - die(_("cannot store pack file"));
> - } else if (from_stdin)
> - chmod(final_pack_name, 0444);
> -
> - if (final_index_name != curr_index_name) {
> - if (!final_index_name) {
> - snprintf(name, sizeof(name), "%s/pack/pack-%s.idx",
> - get_object_directory(), sha1_to_hex(sha1));
> - final_index_name = name;
> - }
> - if (finalize_object_file(curr_index_name, final_index_name))
> - die(_("cannot store index file"));
> - } else
> - chmod(final_index_name, 0444);
Is from_stdin always true if final_index_name == curr_index_name?
Was the original asymmetry deliberate?
> + finalize_file(final_pack_name, curr_pack_name, sha1, "pack");
> + finalize_file(final_index_name, curr_index_name, sha1, "idx");
>
> if (!from_stdin) {
> printf("%s\n", sha1_to_hex(sha1));
>
ATB,
Ramsay Jones
next prev parent reply other threads:[~2017-03-15 22:05 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-15 21:26 [PATCH 0/6] minor pack-name cleanups Jeff King
2017-03-15 21:27 ` [PATCH 1/6] index-pack: factor out pack/idx finalization Jeff King
2017-03-15 22:03 ` Ramsay Jones [this message]
2017-03-15 22:22 ` Jeff King
2017-03-15 22:30 ` Jeff King
2017-03-15 21:27 ` [PATCH 2/6] move odb_* declarations out of git-compat-util.h Jeff King
2017-03-15 21:28 ` [PATCH 3/6] sha1_file.c: make pack-name helper globally accessible Jeff King
2017-03-15 21:28 ` [PATCH 4/6] index-pack: drop fixed-size buffer for pack filenames Jeff King
2017-03-15 21:29 ` [PATCH 5/6] fast-import: replace fixed buffer with odb_pack_name Jeff King
2017-03-15 21:30 ` [PATCH 6/6] odb_pack_keep(): stop generating keepfile name Jeff King
2017-03-16 1:24 ` Junio C Hamano
2017-03-16 14:26 ` [PATCH v2 0/5] minor pack-name cleanups Jeff King
2017-03-16 14:27 ` [PATCH v2 1/5] move odb_* declarations out of git-compat-util.h Jeff King
2017-03-16 14:27 ` [PATCH v2 2/5] sha1_file.c: make pack-name helper globally accessible Jeff King
2017-03-16 14:31 ` Jeff King
2017-03-16 17:03 ` Ramsay Jones
2017-03-16 17:40 ` Jeff King
2017-03-16 14:27 ` [PATCH v2 3/5] odb_pack_keep(): stop generating keepfile name Jeff King
2017-03-16 14:27 ` [PATCH v2 4/5] replace snprintf with odb_pack_name() Jeff King
2017-03-16 15:37 ` Ramsay Jones
2017-03-16 18:33 ` Junio C Hamano
2017-03-16 18:34 ` Jeff King
2017-03-16 18:57 ` Junio C Hamano
2017-03-16 14:27 ` [PATCH v2 5/5] index-pack: make pointer-alias fallbacks safer Jeff King
2017-03-16 15:42 ` Ramsay Jones
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