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rev-parse: add --shared-index-path to get shared index path 

Normally scripts do not have to be aware about split indexes because
all shared indexes are in $GIT_DIR. A simple "mv $tmp_index
$GIT_DIR/somewhere" is enough. Scripts that generate temporary indexes
and move them across repos must be aware about split index and copy
the shared file as well. This option enables that.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2014-06-13 19:19:46 +07:00 committed by Junio C Hamano
parent a0a967568e
commit a76295da78
2 changed files with 14 additions and 0 deletions
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4
Documentation/git-rev-parse.txt
View File

@ -245,6 +245,10 @@ print a message to stderr and exit with nonzero status.
--show-toplevel::
Show the absolute path of the top-level directory.
--shared-index-path::
Show the path to the shared index file in split index mode, or
empty if not in split-index mode.
Other Options
~~~~~~~~~~~~~

10
builtin/rev-parse.c
View File

@ -11,6 +11,7 @@
#include "parse-options.h"
#include "diff.h"
#include "revision.h"
#include "split-index.h"
#define DO_REVS 1
#define DO_NOREV 2
@ -775,6 +776,15 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
: "false");
continue;
}
if (!strcmp(arg, "--shared-index-path")) {
if (read_cache() < 0)
die(_("Could not read the index"));
if (the_index.split_index) {
const unsigned char *sha1 = the_index.split_index->base_sha1;
puts(git_path("sharedindex.%s", sha1_to_hex(sha1)));
}
continue;
}
if (starts_with(arg, "--since=")) {
show_datestring("--max-age=", arg+8);
continue;