2 * Copyright (C) 2005 Junio C Hamano
9 static int detect_rename = 0;
10 static int diff_score_opt = 0;
12 static int parse_oneside_change(const char *cp, int *mode,
13 unsigned char *sha1, char *path)
18 while ((ch = *cp) && '0' <= ch && ch <= '7') {
19 m = (m << 3) | (ch - '0');
23 if (strncmp(cp, "\tblob\t", 6) && strncmp(cp, " blob ", 6))
26 if (get_sha1_hex(cp, sha1))
29 if ((*cp != '\t') && *cp != ' ')
35 static int parse_diff_raw_output(const char *buf)
38 unsigned char old_sha1[20], new_sha1[20];
40 int ch, old_mode, new_mode;
47 parse_oneside_change(cp, &new_mode, new_sha1, path);
48 diff_addremove('+', new_mode, new_sha1, path, NULL);
51 parse_oneside_change(cp, &old_mode, old_sha1, path);
52 diff_addremove('-', old_mode, old_sha1, path, NULL);
55 old_mode = new_mode = 0;
56 while ((ch = *cp) && ('0' <= ch && ch <= '7')) {
57 old_mode = (old_mode << 3) | (ch - '0');
60 if (strncmp(cp, "->", 2))
63 while ((ch = *cp) && ('0' <= ch && ch <= '7')) {
64 new_mode = (new_mode << 3) | (ch - '0');
67 if (strncmp(cp, "\tblob\t", 6) && strncmp(cp, " blob ", 6))
70 if (get_sha1_hex(cp, old_sha1))
73 if (strncmp(cp, "->", 2))
76 if (get_sha1_hex(cp, new_sha1))
79 if ((*cp != '\t') && *cp != ' ')
82 diff_change(old_mode, new_mode, old_sha1, new_sha1, path, NULL);
90 static const char *diff_helper_usage =
91 "git-diff-helper [-z] [-R] [-M] paths...";
93 int main(int ac, const char **av) {
96 int line_termination = '\n';
100 while (1 < ac && av[1][0] == '-') {
103 else if (av[1][1] == 'z')
104 line_termination = 0;
105 else if (av[1][1] == 'M') {
107 diff_score_opt = diff_scoreopt_parse(av[1]);
110 usage(diff_helper_usage);
113 /* the remaining parameters are paths patterns */
115 diff_setup(detect_rename, diff_score_opt, reverse, -1, av+1, ac-1);
119 read_line(&sb, stdin, line_termination);
122 status = parse_diff_raw_output(sb.buf);
125 printf("%s%c", sb.buf, line_termination);