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Commit | Line | Data |
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75118b13 | 1 | #include "cache.h" |
b49809c9 | 2 | #include "run-command.h" |
75118b13 | 3 | |
96f1e58f | 4 | static const char *pgm; |
843d49a4 | 5 | static const char *arguments[9]; |
bbd14cb0 | 6 | static int one_shot, quiet; |
8c59926f | 7 | static int err; |
75118b13 LT |
8 | |
9 | static void run_program(void) | |
10 | { | |
b49809c9 SP |
11 | struct child_process child; |
12 | memset(&child, 0, sizeof(child)); | |
13 | child.argv = arguments; | |
14 | if (run_command(&child)) { | |
bbd14cb0 | 15 | if (one_shot) { |
2a459251 | 16 | err++; |
bbd14cb0 | 17 | } else { |
b32e986c | 18 | if (!quiet) |
bbd14cb0 PB |
19 | die("merge program failed"); |
20 | exit(1); | |
21 | } | |
2a459251 | 22 | } |
75118b13 LT |
23 | } |
24 | ||
75118b13 LT |
25 | static int merge_entry(int pos, const char *path) |
26 | { | |
27 | int found; | |
a6080a0a | 28 | |
75118b13 | 29 | if (pos >= active_nr) |
215a7ad1 | 30 | die("git-merge-index: %s not in the cache", path); |
75118b13 LT |
31 | arguments[0] = pgm; |
32 | arguments[1] = ""; | |
33 | arguments[2] = ""; | |
34 | arguments[3] = ""; | |
35 | arguments[4] = path; | |
e2b6a9d0 JB |
36 | arguments[5] = ""; |
37 | arguments[6] = ""; | |
38 | arguments[7] = ""; | |
843d49a4 | 39 | arguments[8] = NULL; |
75118b13 LT |
40 | found = 0; |
41 | do { | |
e3b4be7f | 42 | static char hexbuf[4][60]; |
e2b6a9d0 | 43 | static char ownbuf[4][60]; |
75118b13 LT |
44 | struct cache_entry *ce = active_cache[pos]; |
45 | int stage = ce_stage(ce); | |
46 | ||
47 | if (strcmp(ce->name, path)) | |
48 | break; | |
49 | found++; | |
e3b4be7f | 50 | strcpy(hexbuf[stage], sha1_to_hex(ce->sha1)); |
7a51ed66 | 51 | sprintf(ownbuf[stage], "%o", ce->ce_mode); |
e3b4be7f | 52 | arguments[stage] = hexbuf[stage]; |
e2b6a9d0 | 53 | arguments[stage + 4] = ownbuf[stage]; |
75118b13 LT |
54 | } while (++pos < active_nr); |
55 | if (!found) | |
215a7ad1 | 56 | die("git-merge-index: %s not in the cache", path); |
75118b13 LT |
57 | run_program(); |
58 | return found; | |
59 | } | |
60 | ||
61 | static void merge_file(const char *path) | |
62 | { | |
63 | int pos = cache_name_pos(path, strlen(path)); | |
64 | ||
65 | /* | |
66 | * If it already exists in the cache as stage0, it's | |
67 | * already merged and there is nothing to do. | |
68 | */ | |
69 | if (pos < 0) | |
70 | merge_entry(-pos-1, path); | |
71 | } | |
72 | ||
73 | static void merge_all(void) | |
74 | { | |
75 | int i; | |
76 | for (i = 0; i < active_nr; i++) { | |
77 | struct cache_entry *ce = active_cache[i]; | |
78 | if (!ce_stage(ce)) | |
79 | continue; | |
80 | i += merge_entry(i, ce->name)-1; | |
81 | } | |
82 | } | |
83 | ||
84 | int main(int argc, char **argv) | |
85 | { | |
86 | int i, force_file = 0; | |
87 | ||
f0b7367c JH |
88 | /* Without this we cannot rely on waitpid() to tell |
89 | * what happened to our children. | |
90 | */ | |
91 | signal(SIGCHLD, SIG_DFL); | |
92 | ||
75118b13 | 93 | if (argc < 3) |
c7fae5fc | 94 | usage("git-merge-index [-o] [-q] <merge-program> (-a | [--] <filename>*)"); |
75118b13 | 95 | |
53228a5f | 96 | setup_git_directory(); |
75118b13 LT |
97 | read_cache(); |
98 | ||
2a459251 | 99 | i = 1; |
bbd14cb0 | 100 | if (!strcmp(argv[i], "-o")) { |
2a459251 PB |
101 | one_shot = 1; |
102 | i++; | |
103 | } | |
bbd14cb0 PB |
104 | if (!strcmp(argv[i], "-q")) { |
105 | quiet = 1; | |
106 | i++; | |
107 | } | |
2a459251 PB |
108 | pgm = argv[i++]; |
109 | for (; i < argc; i++) { | |
75118b13 LT |
110 | char *arg = argv[i]; |
111 | if (!force_file && *arg == '-') { | |
112 | if (!strcmp(arg, "--")) { | |
113 | force_file = 1; | |
114 | continue; | |
115 | } | |
116 | if (!strcmp(arg, "-a")) { | |
117 | merge_all(); | |
118 | continue; | |
119 | } | |
215a7ad1 | 120 | die("git-merge-index: unknown option %s", arg); |
75118b13 LT |
121 | } |
122 | merge_file(arg); | |
123 | } | |
b32e986c | 124 | if (err && !quiet) |
8c59926f | 125 | die("merge program failed"); |
bbd14cb0 | 126 | return err; |
75118b13 | 127 | } |