mirror of
https://github.com/git/git
synced 2024-08-25 02:35:46 +00:00
builtin/index-pack.c: write reverse indexes
Teach 'git index-pack' to optionally write and verify reverse index with '--[no-]rev-index', as well as respecting the 'pack.writeReverseIndex' configuration option. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
parent
84d544943c
commit
e37d0b8730
|
@ -9,17 +9,18 @@ git-index-pack - Build pack index file for an existing packed archive
|
|||
SYNOPSIS
|
||||
--------
|
||||
[verse]
|
||||
'git index-pack' [-v] [-o <index-file>] <pack-file>
|
||||
'git index-pack' [-v] [-o <index-file>] [--[no-]rev-index] <pack-file>
|
||||
'git index-pack' --stdin [--fix-thin] [--keep] [-v] [-o <index-file>]
|
||||
[<pack-file>]
|
||||
[--[no-]rev-index] [<pack-file>]
|
||||
|
||||
|
||||
DESCRIPTION
|
||||
-----------
|
||||
Reads a packed archive (.pack) from the specified file, and
|
||||
builds a pack index file (.idx) for it. The packed archive
|
||||
together with the pack index can then be placed in the
|
||||
objects/pack/ directory of a Git repository.
|
||||
builds a pack index file (.idx) for it. Optionally writes a
|
||||
reverse-index (.rev) for the specified pack. The packed
|
||||
archive together with the pack index can then be placed in
|
||||
the objects/pack/ directory of a Git repository.
|
||||
|
||||
|
||||
OPTIONS
|
||||
|
@ -35,6 +36,13 @@ OPTIONS
|
|||
fails if the name of packed archive does not end
|
||||
with .pack).
|
||||
|
||||
--[no-]rev-index::
|
||||
When this flag is provided, generate a reverse index
|
||||
(a `.rev` file) corresponding to the given pack. If
|
||||
`--verify` is given, ensure that the existing
|
||||
reverse index is correct. Takes precedence over
|
||||
`pack.writeReverseIndex`.
|
||||
|
||||
--stdin::
|
||||
When this flag is provided, the pack is read from stdin
|
||||
instead and a copy is then written to <pack-file>. If
|
||||
|
|
|
@ -17,7 +17,7 @@
|
|||
#include "promisor-remote.h"
|
||||
|
||||
static const char index_pack_usage[] =
|
||||
"git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--verify] [--strict] (<pack-file> | --stdin [--fix-thin] [<pack-file>])";
|
||||
"git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--[no-]rev-index] [--verify] [--strict] (<pack-file> | --stdin [--fix-thin] [<pack-file>])";
|
||||
|
||||
struct object_entry {
|
||||
struct pack_idx_entry idx;
|
||||
|
@ -1484,12 +1484,14 @@ static void write_special_file(const char *suffix, const char *msg,
|
|||
|
||||
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 *final_rev_index_name, const char *curr_rev_index_name,
|
||||
const char *keep_msg, const char *promisor_msg,
|
||||
unsigned char *hash)
|
||||
{
|
||||
const char *report = "pack";
|
||||
struct strbuf pack_name = STRBUF_INIT;
|
||||
struct strbuf index_name = STRBUF_INIT;
|
||||
struct strbuf rev_index_name = STRBUF_INIT;
|
||||
int err;
|
||||
|
||||
if (!from_stdin) {
|
||||
|
@ -1524,6 +1526,16 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
|
|||
} else
|
||||
chmod(final_index_name, 0444);
|
||||
|
||||
if (curr_rev_index_name) {
|
||||
if (final_rev_index_name != curr_rev_index_name) {
|
||||
if (!final_rev_index_name)
|
||||
final_rev_index_name = odb_pack_name(&rev_index_name, hash, "rev");
|
||||
if (finalize_object_file(curr_rev_index_name, final_rev_index_name))
|
||||
die(_("cannot store reverse index file"));
|
||||
} else
|
||||
chmod(final_rev_index_name, 0444);
|
||||
}
|
||||
|
||||
if (do_fsck_object) {
|
||||
struct packed_git *p;
|
||||
p = add_packed_git(final_index_name, strlen(final_index_name), 0);
|
||||
|
@ -1553,6 +1565,7 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
|
|||
}
|
||||
}
|
||||
|
||||
strbuf_release(&rev_index_name);
|
||||
strbuf_release(&index_name);
|
||||
strbuf_release(&pack_name);
|
||||
}
|
||||
|
@ -1578,6 +1591,12 @@ static int git_index_pack_config(const char *k, const char *v, void *cb)
|
|||
}
|
||||
return 0;
|
||||
}
|
||||
if (!strcmp(k, "pack.writereverseindex")) {
|
||||
if (git_config_bool(k, v))
|
||||
opts->flags |= WRITE_REV;
|
||||
else
|
||||
opts->flags &= ~WRITE_REV;
|
||||
}
|
||||
return git_default_config(k, v, cb);
|
||||
}
|
||||
|
||||
|
@ -1695,12 +1714,14 @@ static void show_pack_info(int stat_only)
|
|||
|
||||
int cmd_index_pack(int argc, const char **argv, const char *prefix)
|
||||
{
|
||||
int i, fix_thin_pack = 0, verify = 0, stat_only = 0;
|
||||
int i, fix_thin_pack = 0, verify = 0, stat_only = 0, rev_index;
|
||||
const char *curr_index;
|
||||
const char *index_name = NULL, *pack_name = NULL;
|
||||
const char *curr_rev_index = NULL;
|
||||
const char *index_name = NULL, *pack_name = NULL, *rev_index_name = NULL;
|
||||
const char *keep_msg = NULL;
|
||||
const char *promisor_msg = NULL;
|
||||
struct strbuf index_name_buf = STRBUF_INIT;
|
||||
struct strbuf rev_index_name_buf = STRBUF_INIT;
|
||||
struct pack_idx_entry **idx_objects;
|
||||
struct pack_idx_option opts;
|
||||
unsigned char pack_hash[GIT_MAX_RAWSZ];
|
||||
|
@ -1727,6 +1748,8 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
|
|||
if (prefix && chdir(prefix))
|
||||
die(_("Cannot come back to cwd"));
|
||||
|
||||
rev_index = !!(opts.flags & (WRITE_REV_VERIFY | WRITE_REV));
|
||||
|
||||
for (i = 1; i < argc; i++) {
|
||||
const char *arg = argv[i];
|
||||
|
||||
|
@ -1805,6 +1828,10 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
|
|||
if (hash_algo == GIT_HASH_UNKNOWN)
|
||||
die(_("unknown hash algorithm '%s'"), arg);
|
||||
repo_set_hash_algo(the_repository, hash_algo);
|
||||
} else if (!strcmp(arg, "--rev-index")) {
|
||||
rev_index = 1;
|
||||
} else if (!strcmp(arg, "--no-rev-index")) {
|
||||
rev_index = 0;
|
||||
} else
|
||||
usage(index_pack_usage);
|
||||
continue;
|
||||
|
@ -1826,6 +1853,15 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
|
|||
if (!index_name && pack_name)
|
||||
index_name = derive_filename(pack_name, "pack", "idx", &index_name_buf);
|
||||
|
||||
opts.flags &= ~(WRITE_REV | WRITE_REV_VERIFY);
|
||||
if (rev_index) {
|
||||
opts.flags |= verify ? WRITE_REV_VERIFY : WRITE_REV;
|
||||
if (index_name)
|
||||
rev_index_name = derive_filename(index_name,
|
||||
"idx", "rev",
|
||||
&rev_index_name_buf);
|
||||
}
|
||||
|
||||
if (verify) {
|
||||
if (!index_name)
|
||||
die(_("--verify with no packfile name given"));
|
||||
|
@ -1878,11 +1914,16 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
|
|||
for (i = 0; i < nr_objects; i++)
|
||||
idx_objects[i] = &objects[i].idx;
|
||||
curr_index = write_idx_file(index_name, idx_objects, nr_objects, &opts, pack_hash);
|
||||
if (rev_index)
|
||||
curr_rev_index = write_rev_file(rev_index_name, idx_objects,
|
||||
nr_objects, pack_hash,
|
||||
opts.flags);
|
||||
free(idx_objects);
|
||||
|
||||
if (!verify)
|
||||
final(pack_name, curr_pack,
|
||||
index_name, curr_index,
|
||||
rev_index_name, curr_rev_index,
|
||||
keep_msg, promisor_msg,
|
||||
pack_hash);
|
||||
else
|
||||
|
@ -1893,10 +1934,13 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
|
|||
|
||||
free(objects);
|
||||
strbuf_release(&index_name_buf);
|
||||
strbuf_release(&rev_index_name_buf);
|
||||
if (pack_name == NULL)
|
||||
free((void *) curr_pack);
|
||||
if (index_name == NULL)
|
||||
free((void *) curr_index);
|
||||
if (rev_index_name == NULL)
|
||||
free((void *) curr_rev_index);
|
||||
|
||||
/*
|
||||
* Let the caller know this pack is not self contained
|
||||
|
|
71
t/t5325-reverse-index.sh
Executable file
71
t/t5325-reverse-index.sh
Executable file
|
@ -0,0 +1,71 @@
|
|||
#!/bin/sh
|
||||
|
||||
test_description='on-disk reverse index'
|
||||
. ./test-lib.sh
|
||||
|
||||
packdir=.git/objects/pack
|
||||
|
||||
test_expect_success 'setup' '
|
||||
test_commit base &&
|
||||
|
||||
pack=$(git pack-objects --all $packdir/pack) &&
|
||||
rev=$packdir/pack-$pack.rev &&
|
||||
|
||||
test_path_is_missing $rev
|
||||
'
|
||||
|
||||
test_index_pack () {
|
||||
rm -f $rev &&
|
||||
conf=$1 &&
|
||||
shift &&
|
||||
# remove the index since Windows won't overwrite an existing file
|
||||
rm $packdir/pack-$pack.idx &&
|
||||
git -c pack.writeReverseIndex=$conf index-pack "$@" \
|
||||
$packdir/pack-$pack.pack
|
||||
}
|
||||
|
||||
test_expect_success 'index-pack with pack.writeReverseIndex' '
|
||||
test_index_pack "" &&
|
||||
test_path_is_missing $rev &&
|
||||
|
||||
test_index_pack false &&
|
||||
test_path_is_missing $rev &&
|
||||
|
||||
test_index_pack true &&
|
||||
test_path_is_file $rev
|
||||
'
|
||||
|
||||
test_expect_success 'index-pack with --[no-]rev-index' '
|
||||
for conf in "" true false
|
||||
do
|
||||
test_index_pack "$conf" --rev-index &&
|
||||
test_path_exists $rev &&
|
||||
|
||||
test_index_pack "$conf" --no-rev-index &&
|
||||
test_path_is_missing $rev
|
||||
done
|
||||
'
|
||||
|
||||
test_expect_success 'index-pack can verify reverse indexes' '
|
||||
test_when_finished "rm -f $rev" &&
|
||||
test_index_pack true &&
|
||||
|
||||
test_path_is_file $rev &&
|
||||
git index-pack --rev-index --verify $packdir/pack-$pack.pack &&
|
||||
|
||||
# Intentionally corrupt the reverse index.
|
||||
chmod u+w $rev &&
|
||||
printf "xxxx" | dd of=$rev bs=1 count=4 conv=notrunc &&
|
||||
|
||||
test_must_fail git index-pack --rev-index --verify \
|
||||
$packdir/pack-$pack.pack 2>err &&
|
||||
grep "validation error" err
|
||||
'
|
||||
|
||||
test_expect_success 'index-pack infers reverse index name with -o' '
|
||||
git index-pack --rev-index -o other.idx $packdir/pack-$pack.pack &&
|
||||
test_path_is_file other.idx &&
|
||||
test_path_is_file other.rev
|
||||
'
|
||||
|
||||
test_done
|
Loading…
Reference in a new issue