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>
11 static const char var_usage[] = "git-var [-l | <variable>]";
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 };
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 }
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 }
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;
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);
62 printf("%s\n", val);
64 return 0;
65 }