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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" |
86436c28 | 7 | #include "diff.h" |
c0fb976a | 8 | |
d2522a65 | 9 | static const char *show_diff_usage = "show-diff [-q] [-s] [-z] [paths...]"; |
b8f80925 JH |
10 | |
11 | static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt) | |
12 | { | |
13 | int i; | |
14 | int namelen = ce_namelen(ce); | |
15 | for (i = 0; i < cnt; i++) { | |
16 | int speclen = strlen(spec[i]); | |
17 | if (! strncmp(spec[i], ce->name, speclen) && | |
18 | speclen <= namelen && | |
19 | (ce->name[speclen] == 0 || | |
20 | ce->name[speclen] == '/')) | |
21 | return 1; | |
22 | } | |
23 | return 0; | |
24 | } | |
25 | ||
e83c5163 LT |
26 | int main(int argc, char **argv) |
27 | { | |
e2e5e98a | 28 | int silent = 0; |
ca2a0798 | 29 | int silent_on_nonexisting_files = 0; |
d94c6128 | 30 | int machine_readable = 0; |
4789576e | 31 | int reverse = 0; |
e83c5163 LT |
32 | int entries = read_cache(); |
33 | int i; | |
34 | ||
b8f80925 | 35 | while (1 < argc && argv[1][0] == '-') { |
4789576e JH |
36 | if (!strcmp(argv[1], "-R")) |
37 | reverse = 1; | |
38 | else if (!strcmp(argv[1], "-s")) | |
ca2a0798 | 39 | silent_on_nonexisting_files = silent = 1; |
b8f80925 | 40 | else if (!strcmp(argv[1], "-q")) |
ca2a0798 | 41 | silent_on_nonexisting_files = 1; |
d2522a65 | 42 | else if (!strcmp(argv[1], "-z")) |
d94c6128 | 43 | machine_readable = 1; |
b8f80925 JH |
44 | else |
45 | usage(show_diff_usage); | |
46 | argv++; argc--; | |
e2e5e98a PB |
47 | } |
48 | ||
b8f80925 JH |
49 | /* At this point, if argc == 1, then we are doing everything. |
50 | * Otherwise argv[1] .. argv[argc-1] have the explicit paths. | |
51 | */ | |
e83c5163 LT |
52 | if (entries < 0) { |
53 | perror("read_cache"); | |
54 | exit(1); | |
55 | } | |
be3cfa85 | 56 | |
e83c5163 LT |
57 | for (i = 0; i < entries; i++) { |
58 | struct stat st; | |
59 | struct cache_entry *ce = active_cache[i]; | |
d94c6128 | 60 | int changed; |
e83c5163 | 61 | |
d2522a65 | 62 | if (1 < argc && |
b8f80925 JH |
63 | ! matches_pathspec(ce, argv+1, argc-1)) |
64 | continue; | |
65 | ||
9fec8b26 JH |
66 | if (ce_stage(ce)) { |
67 | if (machine_readable) | |
68 | printf("U %s%c", ce->name, 0); | |
69 | else | |
70 | printf("%s: Unmerged\n", | |
71 | ce->name); | |
72 | while (i < entries && | |
73 | !strcmp(ce->name, active_cache[i]->name)) | |
74 | i++; | |
75 | i--; /* compensate for loop control increments */ | |
76 | continue; | |
77 | } | |
78 | ||
e83c5163 | 79 | if (stat(ce->name, &st) < 0) { |
ca2a0798 JH |
80 | if (errno == ENOENT && silent_on_nonexisting_files) |
81 | continue; | |
d94c6128 JH |
82 | if (machine_readable) |
83 | printf("X %s%c", ce->name, 0); | |
84 | else { | |
85 | printf("%s: %s\n", ce->name, strerror(errno)); | |
86 | if (errno == ENOENT) | |
be3cfa85 | 87 | show_diff_empty(ce, reverse); |
d94c6128 | 88 | } |
e83c5163 LT |
89 | continue; |
90 | } | |
734aab75 | 91 | changed = cache_match_stat(ce, &st); |
5e76011c | 92 | if (!changed) |
e83c5163 | 93 | continue; |
d94c6128 JH |
94 | if (!machine_readable) |
95 | printf("%s: %s\n", ce->name, sha1_to_hex(ce->sha1)); | |
96 | else { | |
97 | printf("%s %s%c", sha1_to_hex(ce->sha1), ce->name, 0); | |
98 | continue; | |
99 | } | |
e2e5e98a PB |
100 | if (silent) |
101 | continue; | |
102 | ||
be3cfa85 | 103 | show_differences(ce, reverse); |
e83c5163 LT |
104 | } |
105 | return 0; | |
106 | } |