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honor repack.usedeltabaseoffset when fetching packs

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If the local receiving repository has disabled the use of delta base
offset, for example to retain compatibility with older versions of
Git that predate OFS_DELTA, we shouldn't ask for ofs-delta support
when we obtain a pack from the remote server.

[ issue noticed by Shawn Pearce ]

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nicolas Pitre 2009-05-01 20:18:02 -04:00 committed by Junio C Hamano
parent a2dc04ba15
commit f04833ef9f
1 changed files with 12 additions and 1 deletions
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13
builtin-fetch-pack.c
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@ -13,6 +13,7 @@
static int transfer_unpack_limit = -1;
static int fetch_unpack_limit = -1;
static int unpack_limit = 100;
static int prefer_ofs_delta = 1;
static struct fetch_pack_args args = {
/* .uploadpack = */ "git-upload-pack",
};
@ -200,7 +201,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
(args.use_thin_pack ? " thin-pack" : ""),
(args.no_progress ? " no-progress" : ""),
(args.include_tag ? " include-tag" : ""),
" ofs-delta");
(prefer_ofs_delta ? " ofs-delta" : ""));
else
packet_write(fd[1], "want %s\n", sha1_to_hex(remote));
fetching++;
@ -597,6 +598,11 @@ static struct ref *do_fetch_pack(int fd[2],
fprintf(stderr, "Server supports side-band\n");
use_sideband = 1;
}
if (server_supports("ofs-delta")) {
if (args.verbose)
fprintf(stderr, "Server supports ofs-delta\n");
} else
prefer_ofs_delta = 0;
if (everything_local(&ref, nr_match, match)) {
packet_flush(fd[1]);
goto all_done;
@ -649,6 +655,11 @@ static int fetch_pack_config(const char *var, const char *value, void *cb)
return 0;
}
if (strcmp(var, "repack.usedeltabaseoffset") == 0) {
prefer_ofs_delta = git_config_bool(var, value);
return 0;
}
return git_default_config(var, value, cb);
}