* [PATCH] bundle: Use OFS_DELTA in bundle files
@ 2011-02-06 0:58 Shawn O. Pearce
2011-02-07 1:28 ` Nicolas Pitre
0 siblings, 1 reply; 2+ messages in thread
From: Shawn O. Pearce @ 2011-02-06 0:58 UTC (permalink / raw)
To: Junio C Hamano; +Cc: git
git-bundle first appeared in 2e0afafe ("Add git-bundle") in Feb 2007,
and first shipped in Git 1.5.1.
However, OFS_DELTA is an even earlier invention, coming about in
eb32d236 ("introduce delta objects with offset to base") in Sep 2006,
and first shipped in Git 1.4.4.5.
OFS_DELTA is smaller, about 3.2%-5% smaller, and is typically faster
to access than REF_DELTA because the exact location of the delta base
is available after parsing the object header. Since all bundle aware
versions of Git are also OFS_DELTA aware, just make it the default.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
bundle.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/bundle.c b/bundle.c
index 65ea26b..f48fd7d 100644
--- a/bundle.c
+++ b/bundle.c
@@ -200,7 +200,7 @@ int create_bundle(struct bundle_header *header, const char *path,
int bundle_fd = -1;
int bundle_to_stdout;
const char **argv_boundary = xmalloc((argc + 4) * sizeof(const char *));
- const char **argv_pack = xmalloc(5 * sizeof(const char *));
+ const char **argv_pack = xmalloc(6 * sizeof(const char *));
int i, ref_count = 0;
char buffer[1024];
struct rev_info revs;
@@ -346,7 +346,8 @@ int create_bundle(struct bundle_header *header, const char *path,
argv_pack[1] = "--all-progress-implied";
argv_pack[2] = "--stdout";
argv_pack[3] = "--thin";
- argv_pack[4] = NULL;
+ argv_pack[4] = "--delta-base-offset";
+ argv_pack[5] = NULL;
memset(&rls, 0, sizeof(rls));
rls.argv = argv_pack;
rls.in = -1;
--
1.7.4.rc3.268.g2af8b
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] bundle: Use OFS_DELTA in bundle files
2011-02-06 0:58 [PATCH] bundle: Use OFS_DELTA in bundle files Shawn O. Pearce
@ 2011-02-07 1:28 ` Nicolas Pitre
0 siblings, 0 replies; 2+ messages in thread
From: Nicolas Pitre @ 2011-02-07 1:28 UTC (permalink / raw)
To: Shawn O. Pearce; +Cc: Junio C Hamano, git
On Sat, 5 Feb 2011, Shawn O. Pearce wrote:
> git-bundle first appeared in 2e0afafe ("Add git-bundle") in Feb 2007,
> and first shipped in Git 1.5.1.
>
> However, OFS_DELTA is an even earlier invention, coming about in
> eb32d236 ("introduce delta objects with offset to base") in Sep 2006,
> and first shipped in Git 1.4.4.5.
>
> OFS_DELTA is smaller, about 3.2%-5% smaller, and is typically faster
> to access than REF_DELTA because the exact location of the delta base
> is available after parsing the object header. Since all bundle aware
> versions of Git are also OFS_DELTA aware, just make it the default.
>
> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
> ---
> bundle.c | 5 +++--
> 1 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/bundle.c b/bundle.c
> index 65ea26b..f48fd7d 100644
> --- a/bundle.c
> +++ b/bundle.c
> @@ -200,7 +200,7 @@ int create_bundle(struct bundle_header *header, const char *path,
> int bundle_fd = -1;
> int bundle_to_stdout;
> const char **argv_boundary = xmalloc((argc + 4) * sizeof(const char *));
> - const char **argv_pack = xmalloc(5 * sizeof(const char *));
> + const char **argv_pack = xmalloc(6 * sizeof(const char *));
> int i, ref_count = 0;
> char buffer[1024];
> struct rev_info revs;
> @@ -346,7 +346,8 @@ int create_bundle(struct bundle_header *header, const char *path,
> argv_pack[1] = "--all-progress-implied";
> argv_pack[2] = "--stdout";
> argv_pack[3] = "--thin";
> - argv_pack[4] = NULL;
> + argv_pack[4] = "--delta-base-offset";
> + argv_pack[5] = NULL;
> memset(&rls, 0, sizeof(rls));
> rls.argv = argv_pack;
> rls.in = -1;
> --
> 1.7.4.rc3.268.g2af8b
>
> --
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>
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