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merge(3p/git): Merge git subtree at v2.29.2

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This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
This commit is contained in:
Vincent Ambo 2020-11-21 19:20:35 +01:00
parent 082c006c04
commit f4609b896f
1485 changed files with 241535 additions and 109418 deletions
Download patch file Download diff file Expand all files Collapse all files

40
third_party/git/builtin/show-index.c vendored
View file

@ -1,9 +1,12 @@
#include "builtin.h"
#include "cache.h"
#include "pack.h"
#include "parse-options.h"
static const char show_index_usage[] =
"git show-index";
static const char *const show_index_usage[] = {
"git show-index [--object-format=<hash-algorithm>]",
NULL
};
int cmd_show_index(int argc, const char **argv, const char *prefix)
{
@ -11,9 +14,26 @@ int cmd_show_index(int argc, const char **argv, const char *prefix)
unsigned nr;
unsigned int version;
static unsigned int top_index[256];
unsigned hashsz;
const char *hash_name = NULL;
int hash_algo;
const struct option show_index_options[] = {
OPT_STRING(0, "object-format", &hash_name, N_("hash-algorithm"),
N_("specify the hash algorithm to use")),
OPT_END()
};
argc = parse_options(argc, argv, prefix, show_index_options, show_index_usage, 0);
if (hash_name) {
hash_algo = hash_algo_by_name(hash_name);
if (hash_algo == GIT_HASH_UNKNOWN)
die(_("Unknown hash algorithm"));
repo_set_hash_algo(the_repository, hash_algo);
}
hashsz = the_hash_algo->rawsz;
if (argc != 1)
usage(show_index_usage);
if (fread(top_index, 2 * 4, 1, stdin) != 1)
die("unable to read header");
if (top_index[0] == htonl(PACK_IDX_SIGNATURE)) {
@ -36,23 +56,23 @@ int cmd_show_index(int argc, const char **argv, const char *prefix)
}
if (version == 1) {
for (i = 0; i < nr; i++) {
unsigned int offset, entry[6];
unsigned int offset, entry[(GIT_MAX_RAWSZ + 4) / sizeof(unsigned int)];
if (fread(entry, 4 + 20, 1, stdin) != 1)
if (fread(entry, 4 + hashsz, 1, stdin) != 1)
die("unable to read entry %u/%u", i, nr);
offset = ntohl(entry[0]);
printf("%u %s\n", offset, sha1_to_hex((void *)(entry+1)));
printf("%u %s\n", offset, hash_to_hex((void *)(entry+1)));
}
} else {
unsigned off64_nr = 0;
struct {
unsigned char sha1[20];
struct object_id oid;
uint32_t crc;
uint32_t off;
} *entries;
ALLOC_ARRAY(entries, nr);
for (i = 0; i < nr; i++)
if (fread(entries[i].sha1, 20, 1, stdin) != 1)
if (fread(entries[i].oid.hash, hashsz, 1, stdin) != 1)
die("unable to read sha1 %u/%u", i, nr);
for (i = 0; i < nr; i++)
if (fread(&entries[i].crc, 4, 1, stdin) != 1)
@ -77,7 +97,7 @@ int cmd_show_index(int argc, const char **argv, const char *prefix)
}
printf("%" PRIuMAX " %s (%08"PRIx32")\n",
(uintmax_t) offset,
sha1_to_hex(entries[i].sha1),
oid_to_hex(&entries[i].oid),
ntohl(entries[i].crc));
}
free(entries);