2 * Copyright (C) 2005 Junio C Hamano
9 static int detect_rename = 0;
11 static int parse_oneside_change(const char *cp, int *mode,
12 unsigned char *sha1, char *path)
17 while ((ch = *cp) && '0' <= ch && ch <= '7') {
18 m = (m << 3) | (ch - '0');
22 if (strncmp(cp, "\tblob\t", 6))
25 if (get_sha1_hex(cp, sha1))
34 static int parse_diff_raw_output(const char *buf)
37 unsigned char old_sha1[20], new_sha1[20];
39 int ch, old_mode, new_mode;
46 parse_oneside_change(cp, &new_mode, new_sha1, path);
47 diff_addremove('+', new_mode, new_sha1, path, NULL);
50 parse_oneside_change(cp, &old_mode, old_sha1, path);
51 diff_addremove('-', old_mode, old_sha1, path, NULL);
54 old_mode = new_mode = 0;
55 while ((ch = *cp) && ('0' <= ch && ch <= '7')) {
56 old_mode = (old_mode << 3) | (ch - '0');
59 if (strncmp(cp, "->", 2))
62 while ((ch = *cp) && ('0' <= ch && ch <= '7')) {
63 new_mode = (new_mode << 3) | (ch - '0');
66 if (strncmp(cp, "\tblob\t", 6))
69 if (get_sha1_hex(cp, old_sha1))
72 if (strncmp(cp, "->", 2))
75 if (get_sha1_hex(cp, new_sha1))
81 diff_change(old_mode, new_mode, old_sha1, new_sha1, path, 0);
89 static const char *diff_helper_usage =
90 "git-diff-helper [-z] [-R] [-M] paths...";
92 int main(int ac, const char **av) {
95 int line_termination = '\n';
99 while (1 < ac && av[1][0] == '-') {
102 else if (av[1][1] == 'z')
103 line_termination = 0;
104 else if (av[1][1] == 'M')
107 usage(diff_helper_usage);
110 /* the remaining parameters are paths patterns */
112 diff_setup(detect_rename, 0, reverse, av+1, ac-1);
116 read_line(&sb, stdin, line_termination);
119 status = parse_diff_raw_output(sb.buf);
122 printf("%s%c", sb.buf, line_termination);