2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
9 static const char *diff_files_usage =
10 "git-diff-files [-p] [-q] [-r] [-z] [-M] [paths...]";
12 static int generate_patch = 0;
13 static int line_termination = '\n';
14 static int detect_rename = 0;
15 static int silent = 0;
17 static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt)
20 int namelen = ce_namelen(ce);
21 for (i = 0; i < cnt; i++) {
22 int speclen = strlen(spec[i]);
23 if (! strncmp(spec[i], ce->name, speclen) &&
25 (ce->name[speclen] == 0 ||
26 ce->name[speclen] == '/'))
32 static void show_unmerge(const char *path)
37 printf("U %s%c", path, line_termination);
40 static void show_file(int pfx, struct cache_entry *ce)
43 diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1,
46 printf("%c%06o\t%s\t%s\t%s%c",
47 pfx, ntohl(ce->ce_mode), "blob",
48 sha1_to_hex(ce->sha1), ce->name, line_termination);
51 static void show_modified(int oldmode, int mode,
52 const unsigned char *old_sha1, const unsigned char *sha1,
55 char old_sha1_hex[41];
56 strcpy(old_sha1_hex, sha1_to_hex(old_sha1));
59 diff_change(oldmode, mode, old_sha1, sha1, path, NULL);
61 printf("*%06o->%06o\tblob\t%s->%s\t%s%c",
62 oldmode, mode, old_sha1_hex, sha1_to_hex(sha1), path,
66 int main(int argc, char **argv)
68 static const unsigned char null_sha1[20] = { 0, };
69 int entries = read_cache();
72 while (1 < argc && argv[1][0] == '-') {
73 if (!strcmp(argv[1], "-p"))
75 else if (!strcmp(argv[1], "-q"))
77 else if (!strcmp(argv[1], "-r"))
79 else if (!strcmp(argv[1], "-s"))
81 else if (!strcmp(argv[1], "-z"))
83 else if (!strcmp(argv[1], "-M")) {
84 detect_rename = generate_patch = 1;
87 usage(diff_files_usage);
91 /* At this point, if argc == 1, then we are doing everything.
92 * Otherwise argv[1] .. argv[argc-1] have the explicit paths.
100 diff_setup(detect_rename, 0, 0, 0, 0);
102 for (i = 0; i < entries; i++) {
104 unsigned int oldmode, mode;
105 struct cache_entry *ce = active_cache[i];
109 ! matches_pathspec(ce, argv+1, argc-1))
113 show_unmerge(ce->name);
114 while (i < entries &&
115 !strcmp(ce->name, active_cache[i]->name))
117 i--; /* compensate for loop control increments */
121 if (lstat(ce->name, &st) < 0) {
122 if (errno != ENOENT) {
131 changed = ce_match_stat(ce, &st);
135 oldmode = ntohl(ce->ce_mode);
136 mode = (S_ISLNK(st.st_mode) ? S_IFLNK :
137 S_IFREG | ce_permissions(st.st_mode));
139 show_modified(oldmode, mode, ce->sha1, null_sha1,