Files
git/t/helper/test-hash.c
T
Jeff King 9b204b825b hash: use git_hash_init() consistently
We'd like to add more logic to git_hash_init(), but many callers skip it
and call algop->init_fn() directly. Let's make sure we're consistently
using the wrapper by adding a coccinelle rule.

Besides the coccinelle file itself, this is a purely mechanical
conversion based on the patch it generates. There should be no bare
init_fn() calls left (except for the one in the wrapper).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-07-07 21:56:00 -07:00

62 lines
1.1 KiB
C

#include "test-tool.h"
#include "hex.h"
int cmd_hash_impl(int ac, const char **av, int algo, int unsafe)
{
struct git_hash_ctx ctx;
unsigned char hash[GIT_MAX_HEXSZ];
unsigned bufsz = 8192;
int binary = 0;
char *buffer;
const struct git_hash_algo *algop = &hash_algos[algo];
if (unsafe)
algop = unsafe_hash_algo(algop);
if (ac == 2) {
if (!strcmp(av[1], "-b"))
binary = 1;
else
bufsz = strtoul(av[1], NULL, 10) * 1024 * 1024;
}
if (!bufsz)
bufsz = 8192;
while ((buffer = malloc(bufsz)) == NULL) {
fprintf(stderr, "bufsz %u is too big, halving...\n", bufsz);
bufsz /= 2;
if (bufsz < 1024)
die("OOPS");
}
git_hash_init(&ctx, algop);
while (1) {
ssize_t sz, this_sz;
char *cp = buffer;
unsigned room = bufsz;
this_sz = 0;
while (room) {
sz = xread(0, cp, room);
if (sz == 0)
break;
if (sz < 0)
die_errno("test-hash");
this_sz += sz;
cp += sz;
room -= sz;
}
if (this_sz == 0)
break;
git_hash_update(&ctx, buffer, this_sz);
}
git_hash_final(hash, &ctx);
if (binary)
fwrite(hash, 1, algop->rawsz, stdout);
else
puts(hash_to_hex_algop(hash, algop));
free(buffer);
return 0;
}