| #include "cache.h" |
| |
| int main(int ac, char **av) |
| { |
| git_SHA_CTX ctx; |
| unsigned char sha1[20]; |
| unsigned bufsz = 8192; |
| char *buffer; |
| |
| if (ac == 2) |
| 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_SHA1_Init(&ctx); |
| |
| 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-sha1"); |
| this_sz += sz; |
| cp += sz; |
| room -= sz; |
| } |
| if (this_sz == 0) |
| break; |
| git_SHA1_Update(&ctx, buffer, this_sz); |
| } |
| git_SHA1_Final(sha1, &ctx); |
| puts(sha1_to_hex(sha1)); |
| exit(0); |
| } |