2 * Copyright (c) 2005, 2006 Rene Scharfe
10 static const char builtin_get_tar_commit_id_usage[] =
11 "git get-tar-commit-id";
13 /* ustar header + extended global header content */
14 #define RECORDSIZE (512)
15 #define HEADERSIZE (2 * RECORDSIZE)
17 int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix)
19 char buffer[HEADERSIZE];
20 struct ustar_header *header = (struct ustar_header *)buffer;
21 char *content = buffer + RECORDSIZE;
26 usage(builtin_get_tar_commit_id_usage);
28 n = read_in_full(0, buffer, HEADERSIZE);
30 die("git get-tar-commit-id: read error");
31 if (header->typeflag[0] != 'g')
33 if (!skip_prefix(content, "52 comment=", &comment))
36 n = write_in_full(1, comment, 41);
38 die_errno("git get-tar-commit-id: write error");