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Commit | Line | Data |
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8bc9a0c7 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
e83c5163 | 6 | #include "cache.h" |
4a6bf9e1 | 7 | #include "diff.h" |
c0fb976a | 8 | |
4d1f1190 | 9 | static const char diff_files_usage[] = |
dda2d79a JH |
10 | "git-diff-files [-q] " |
11 | "[<common diff options>] [<path>...]" | |
12 | COMMON_DIFF_OPTIONS_HELP; | |
b8f80925 | 13 | |
e68b6f15 LT |
14 | static int diff_output_format = DIFF_FORMAT_RAW; |
15 | static int diff_line_termination = '\n'; | |
5c97558c | 16 | static int detect_rename = 0; |
4727f640 | 17 | static int find_copies_harder = 0; |
19feebc8 | 18 | static int diff_setup_opt = 0; |
57fe64a4 | 19 | static int diff_score_opt = 0; |
057c7d30 | 20 | static const char *pickaxe = NULL; |
367cec1c | 21 | static int pickaxe_opts = 0; |
f345b0a0 | 22 | static int diff_break_opt = -1; |
af5323e0 | 23 | static const char *orderfile = NULL; |
f2ce9fde | 24 | static const char *diff_filter = NULL; |
0a7668e9 | 25 | static int silent = 0; |
0a7668e9 | 26 | |
4a6bf9e1 | 27 | static void show_unmerge(const char *path) |
0a7668e9 | 28 | { |
57fe64a4 | 29 | diff_unmerge(path); |
4a6bf9e1 JH |
30 | } |
31 | ||
32 | static void show_file(int pfx, struct cache_entry *ce) | |
33 | { | |
57fe64a4 | 34 | diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1, ce->name, NULL); |
4a6bf9e1 JH |
35 | } |
36 | ||
37 | static void show_modified(int oldmode, int mode, | |
bf0f910d | 38 | const unsigned char *old_sha1, const unsigned char *sha1, |
4a6bf9e1 JH |
39 | char *path) |
40 | { | |
57fe64a4 | 41 | diff_change(oldmode, mode, old_sha1, sha1, path, NULL); |
0a7668e9 LT |
42 | } |
43 | ||
6b14d7fa | 44 | int main(int argc, const char **argv) |
e83c5163 | 45 | { |
bf0f910d | 46 | static const unsigned char null_sha1[20] = { 0, }; |
c0fd1f51 | 47 | const char **pathspec; |
e83c5163 LT |
48 | int entries = read_cache(); |
49 | int i; | |
50 | ||
b8f80925 | 51 | while (1 < argc && argv[1][0] == '-') { |
acb46f87 | 52 | if (!strcmp(argv[1], "-p") || !strcmp(argv[1], "-u")) |
81e50eab | 53 | diff_output_format = DIFF_FORMAT_PATCH; |
b8f80925 | 54 | else if (!strcmp(argv[1], "-q")) |
d15aa430 | 55 | silent = 1; |
0a7668e9 | 56 | else if (!strcmp(argv[1], "-r")) |
4a6bf9e1 | 57 | ; /* no-op */ |
d15aa430 JH |
58 | else if (!strcmp(argv[1], "-s")) |
59 | ; /* no-op */ | |
60 | else if (!strcmp(argv[1], "-z")) | |
e68b6f15 | 61 | diff_line_termination = 0; |
52f28529 JH |
62 | else if (!strcmp(argv[1], "--name-only")) |
63 | diff_output_format = DIFF_FORMAT_NAME; | |
57fe64a4 | 64 | else if (!strcmp(argv[1], "-R")) |
19feebc8 | 65 | diff_setup_opt |= DIFF_SETUP_REVERSE; |
e25de756 | 66 | else if (!strncmp(argv[1], "-S", 2)) |
52e95789 | 67 | pickaxe = argv[1] + 2; |
af5323e0 JH |
68 | else if (!strncmp(argv[1], "-O", 2)) |
69 | orderfile = argv[1] + 2; | |
f2ce9fde JH |
70 | else if (!strncmp(argv[1], "--diff-filter=", 14)) |
71 | diff_filter = argv[1] + 14; | |
367cec1c JH |
72 | else if (!strcmp(argv[1], "--pickaxe-all")) |
73 | pickaxe_opts = DIFF_PICKAXE_ALL; | |
0e3994fa JH |
74 | else if (!strncmp(argv[1], "-B", 2)) { |
75 | if ((diff_break_opt = | |
76 | diff_scoreopt_parse(argv[1])) == -1) | |
77 | usage(diff_files_usage); | |
78 | } | |
57fe64a4 | 79 | else if (!strncmp(argv[1], "-M", 2)) { |
0e3994fa JH |
80 | if ((diff_score_opt = |
81 | diff_scoreopt_parse(argv[1])) == -1) | |
82 | usage(diff_files_usage); | |
6b14d7fa | 83 | detect_rename = DIFF_DETECT_RENAME; |
5c97558c | 84 | } |
427dcb4b | 85 | else if (!strncmp(argv[1], "-C", 2)) { |
0e3994fa JH |
86 | if ((diff_score_opt = |
87 | diff_scoreopt_parse(argv[1])) == -1) | |
88 | usage(diff_files_usage); | |
6b14d7fa | 89 | detect_rename = DIFF_DETECT_COPY; |
427dcb4b | 90 | } |
4727f640 JH |
91 | else if (!strcmp(argv[1], "--find-copies-harder")) |
92 | find_copies_harder = 1; | |
b8f80925 | 93 | else |
17710391 | 94 | usage(diff_files_usage); |
b8f80925 | 95 | argv++; argc--; |
e2e5e98a PB |
96 | } |
97 | ||
c0fd1f51 LT |
98 | /* Do we have a pathspec? */ |
99 | pathspec = (argc > 1) ? argv + 1 : NULL; | |
100 | ||
4727f640 JH |
101 | if (find_copies_harder && detect_rename != DIFF_DETECT_COPY) |
102 | usage(diff_files_usage); | |
103 | ||
b8f80925 JH |
104 | /* At this point, if argc == 1, then we are doing everything. |
105 | * Otherwise argv[1] .. argv[argc-1] have the explicit paths. | |
106 | */ | |
e83c5163 LT |
107 | if (entries < 0) { |
108 | perror("read_cache"); | |
109 | exit(1); | |
110 | } | |
be3cfa85 | 111 | |
19feebc8 | 112 | diff_setup(diff_setup_opt); |
5c97558c | 113 | |
e83c5163 LT |
114 | for (i = 0; i < entries; i++) { |
115 | struct stat st; | |
67574c40 | 116 | unsigned int oldmode; |
e83c5163 | 117 | struct cache_entry *ce = active_cache[i]; |
d94c6128 | 118 | int changed; |
e83c5163 | 119 | |
c0fd1f51 LT |
120 | if (!ce_path_match(ce, pathspec)) |
121 | continue; | |
122 | ||
9fec8b26 | 123 | if (ce_stage(ce)) { |
4a6bf9e1 | 124 | show_unmerge(ce->name); |
9fec8b26 JH |
125 | while (i < entries && |
126 | !strcmp(ce->name, active_cache[i]->name)) | |
127 | i++; | |
128 | i--; /* compensate for loop control increments */ | |
129 | continue; | |
130 | } | |
57fe64a4 | 131 | |
ffbe1add | 132 | if (lstat(ce->name, &st) < 0) { |
41174694 | 133 | if (errno != ENOENT && errno != ENOTDIR) { |
0a7668e9 | 134 | perror(ce->name); |
ca2a0798 | 135 | continue; |
57fe64a4 | 136 | } |
d15aa430 | 137 | if (silent) |
0a7668e9 | 138 | continue; |
4a6bf9e1 | 139 | show_file('-', ce); |
e83c5163 LT |
140 | continue; |
141 | } | |
5d728c84 | 142 | changed = ce_match_stat(ce, &st); |
4727f640 | 143 | if (!changed && !find_copies_harder) |
e83c5163 | 144 | continue; |
0a7668e9 | 145 | oldmode = ntohl(ce->ce_mode); |
67574c40 | 146 | show_modified(oldmode, DIFF_FILE_CANON_MODE(st.st_mode), |
4727f640 | 147 | ce->sha1, (changed ? null_sha1 : ce->sha1), |
4a6bf9e1 | 148 | ce->name); |
e83c5163 | 149 | } |
c0fd1f51 | 150 | diffcore_std(pathspec, |
befe8639 | 151 | detect_rename, diff_score_opt, |
f345b0a0 | 152 | pickaxe, pickaxe_opts, |
af5323e0 | 153 | diff_break_opt, |
f2ce9fde | 154 | orderfile, diff_filter); |
e68b6f15 | 155 | diff_flush(diff_output_format, diff_line_termination); |
e83c5163 LT |
156 | return 0; |
157 | } |