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Commit | Line | Data |
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aed022ab EB |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Eric Biederman, 2005 | |
5 | */ | |
6 | #include "cache.h" | |
7 | #include <stdio.h> | |
8 | #include <errno.h> | |
9 | #include <string.h> | |
10 | ||
4d1f1190 | 11 | static const char var_usage[] = "git-var [-l | <variable>]"; |
aed022ab EB |
12 | |
13 | struct git_var { | |
14 | const char *name; | |
15 | char *(*read)(void); | |
16 | }; | |
17 | static struct git_var git_vars[] = { | |
18 | { "GIT_COMMITTER_IDENT", git_committer_info }, | |
19 | { "GIT_AUTHOR_IDENT", git_author_info }, | |
20 | { "", NULL }, | |
21 | }; | |
22 | ||
23 | static void list_vars(void) | |
24 | { | |
25 | struct git_var *ptr; | |
26 | for(ptr = git_vars; ptr->read; ptr++) { | |
27 | printf("%s=%s\n", ptr->name, ptr->read()); | |
28 | } | |
29 | } | |
30 | ||
31 | static const char *read_var(const char *var) | |
32 | { | |
33 | struct git_var *ptr; | |
34 | const char *val; | |
35 | val = NULL; | |
36 | for(ptr = git_vars; ptr->read; ptr++) { | |
37 | if (strcmp(var, ptr->name) == 0) { | |
38 | val = ptr->read(); | |
39 | break; | |
40 | } | |
41 | } | |
42 | return val; | |
43 | } | |
44 | ||
45 | int main(int argc, char **argv) | |
46 | { | |
47 | const char *val; | |
48 | if (argc != 2) { | |
49 | usage(var_usage); | |
50 | } | |
51 | setup_ident(); | |
52 | val = NULL; | |
53 | ||
54 | if (strcmp(argv[1], "-l") == 0) { | |
55 | list_vars(); | |
56 | return 0; | |
57 | } | |
58 | val = read_var(argv[1]); | |
59 | if (!val) | |
60 | usage(var_usage); | |
61 | ||
62 | printf("%s\n", val); | |
63 | ||
64 | return 0; | |
65 | } |