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git/builtin/pack-refs.c

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Start handling references internally as a sorted in-memory list This also adds some very rudimentary support for the notion of packed refs. HOWEVER! At this point it isn't used to actually look up a ref yet, only for listing them (ie "for_each_ref()" and friends see the packed refs, but none of the other single-ref lookup routines). Note how we keep two separate lists: one for the loose refs, and one for the packed refs we read. That's so that we can easily keep the two apart, and read only one set or the other (and still always make sure that the loose refs take precedence). [ From this, it's not actually obvious why we'd keep the two separate lists, but it's important to have the packed refs on their own list later on, when I add support for looking up a single loose one. For that case, we will want to read _just_ the packed refs in case the single-ref lookup fails, yet we may end up needing the other list at some point in the future, so keeping them separated is important ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-12 01:37:32 +02:00
#include "cache.h"
Make builtin-pack-refs.c use parse_options. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 23:06:02 +02:00
#include "parse-options.h"
Move pack_refs() and friends into libgit This moves pack_refs() and underlying functionality into the library, to make pack-refs functionality easily available to all git programs. Most of builtin-pack-refs.c has been moved verbatim into a new file pack-refs.c that is compiled into libgit.a. A corresponding header file, pack-refs.h, has also been added, declaring pack_refs() and the #defines associated with the flags parameter to pack_refs(). This patch introduces no other changes in functionality. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-15 16:05:06 +02:00
#include "pack-refs.h"
git-pack-refs --prune "git pack-refs --prune", after successfully packing the existing refs, removes the loose ref files. It tries to protect against race by doing the usual lock_ref_sha1() which makes sure the contents of the ref has not changed since we last looked at. Also we do not bother trying to prune what was already packed, and we do not try pruning symbolic refs. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-21 09:06:06 +02:00
Make builtin-pack-refs.c use parse_options. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 23:06:02 +02:00
static char const * const pack_refs_usage[] = {
Make usage strings dash-less When you misuse a git command, you are shown the usage string. But this is currently shown in the dashed form. So if you just copy what you see, it will not work, when the dashed form is no longer supported. This patch makes git commands show the dash-less version. For shell scripts that do not specify OPTIONS_SPEC, git-sh-setup.sh generates a dash-less usage string now. Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-13 15:36:15 +02:00
"git pack-refs [options]",
Make builtin-pack-refs.c use parse_options. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 23:06:02 +02:00
NULL
};
Make the pack-refs interfaces usable from outside This just basically creates a "pack_refs()" function that could be used by anybody. You pass it in the flags you want as a bitmask (PACK_REFS_ALL and PACK_REFS_PRUNE), and it will do all the heavy lifting. Of course, it's still static, and it's all in the builtin-pack-refs.c file, so it's not actually visible to the outside, but the next step would be to just move it all to a library file (probably refs.c) and expose it. Then we could easily make "git gc" do this too. While I did it, I also made it check the return value of the fflush and fsync stage, to make sure that we don't overwrite the old packed-refs file with something that got truncated due to write errors! Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-26 18:25:31 +02:00
int cmd_pack_refs(int argc, const char **argv, const char *prefix)
{
Use OPT_BIT in builtin-pack-refs Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-07 11:20:30 +01:00
unsigned int flags = PACK_REFS_PRUNE;
Make builtin-pack-refs.c use parse_options. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 23:06:02 +02:00
struct option opts[] = {
Use OPT_BIT in builtin-pack-refs Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-07 11:20:30 +01:00
OPT_BIT(0, "all", &flags, "pack everything", PACK_REFS_ALL),
OPT_BIT(0, "prune", &flags, "prune loose refs (default)", PACK_REFS_PRUNE),
Make builtin-pack-refs.c use parse_options. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 23:06:02 +02:00
OPT_END(),
};
parse-opts: prepare for OPT_FILENAME To give OPT_FILENAME the prefix, we pass the prefix to parse_options() which passes the prefix to parse_options_start() which sets the prefix member of parse_opts_ctx accordingly. If there isn't a prefix in the calling context, passing NULL will suffice. Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-23 20:53:12 +02:00
if (parse_options(argc, argv, prefix, opts, pack_refs_usage, 0))
Make builtin-pack-refs.c use parse_options. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 23:06:02 +02:00
usage_with_options(pack_refs_usage, opts);
Make the pack-refs interfaces usable from outside This just basically creates a "pack_refs()" function that could be used by anybody. You pass it in the flags you want as a bitmask (PACK_REFS_ALL and PACK_REFS_PRUNE), and it will do all the heavy lifting. Of course, it's still static, and it's all in the builtin-pack-refs.c file, so it's not actually visible to the outside, but the next step would be to just move it all to a library file (probably refs.c) and expose it. Then we could easily make "git gc" do this too. While I did it, I also made it check the return value of the fflush and fsync stage, to make sure that we don't overwrite the old packed-refs file with something that got truncated due to write errors! Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-26 18:25:31 +02:00
return pack_refs(flags);
Start handling references internally as a sorted in-memory list This also adds some very rudimentary support for the notion of packed refs. HOWEVER! At this point it isn't used to actually look up a ref yet, only for listing them (ie "for_each_ref()" and friends see the packed refs, but none of the other single-ref lookup routines). Note how we keep two separate lists: one for the loose refs, and one for the packed refs we read. That's so that we can easily keep the two apart, and read only one set or the other (and still always make sure that the loose refs take precedence). [ From this, it's not actually obvious why we'd keep the two separate lists, but it's important to have the packed refs on their own list later on, when I add support for looking up a single loose one. For that case, we will want to read _just_ the packed refs in case the single-ref lookup fails, yet we may end up needing the other list at some point in the future, so keeping them separated is important ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-12 01:37:32 +02:00
}
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