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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 | */ | |
c2e86add | 6 | #include "builtin.h" |
aed022ab | 7 | |
9fabb6d7 | 8 | static const char var_usage[] = "git var (-l | <variable>)"; |
aed022ab | 9 | |
44fcb497 JN |
10 | static const char *editor(int flag) |
11 | { | |
12 | const char *pgm = git_editor(); | |
13 | ||
14 | if (!pgm && flag & IDENT_ERROR_ON_NO_NAME) | |
15 | die("Terminal is dumb, but EDITOR unset"); | |
16 | ||
17 | return pgm; | |
18 | } | |
19 | ||
63618245 JN |
20 | static const char *pager(int flag) |
21 | { | |
64778d24 | 22 | const char *pgm = git_pager(1); |
63618245 JN |
23 | |
24 | if (!pgm) | |
25 | pgm = "cat"; | |
26 | return pgm; | |
27 | } | |
28 | ||
aed022ab EB |
29 | struct git_var { |
30 | const char *name; | |
749be728 | 31 | const char *(*read)(int); |
aed022ab EB |
32 | }; |
33 | static struct git_var git_vars[] = { | |
34 | { "GIT_COMMITTER_IDENT", git_committer_info }, | |
35 | { "GIT_AUTHOR_IDENT", git_author_info }, | |
44fcb497 | 36 | { "GIT_EDITOR", editor }, |
63618245 | 37 | { "GIT_PAGER", pager }, |
aed022ab EB |
38 | { "", NULL }, |
39 | }; | |
40 | ||
41 | static void list_vars(void) | |
42 | { | |
43 | struct git_var *ptr; | |
44fcb497 JN |
44 | const char *val; |
45 | ||
eeefa7c9 | 46 | for (ptr = git_vars; ptr->read; ptr++) |
44fcb497 JN |
47 | if ((val = ptr->read(0))) |
48 | printf("%s=%s\n", ptr->name, val); | |
aed022ab EB |
49 | } |
50 | ||
51 | static const char *read_var(const char *var) | |
52 | { | |
53 | struct git_var *ptr; | |
54 | const char *val; | |
55 | val = NULL; | |
eeefa7c9 | 56 | for (ptr = git_vars; ptr->read; ptr++) { |
aed022ab | 57 | if (strcmp(var, ptr->name) == 0) { |
774751a8 | 58 | val = ptr->read(IDENT_ERROR_ON_NO_NAME); |
aed022ab EB |
59 | break; |
60 | } | |
61 | } | |
62 | return val; | |
63 | } | |
64 | ||
ef90d6d4 | 65 | static int show_config(const char *var, const char *value, void *cb) |
e1b10391 LT |
66 | { |
67 | if (value) | |
68 | printf("%s=%s\n", var, value); | |
69 | else | |
70 | printf("%s\n", var); | |
ef90d6d4 | 71 | return git_default_config(var, value, cb); |
e1b10391 LT |
72 | } |
73 | ||
55b6745d | 74 | int cmd_var(int argc, const char **argv, const char *prefix) |
aed022ab | 75 | { |
2bc8c1a8 NTND |
76 | const char *val = NULL; |
77 | if (argc != 2) | |
aed022ab | 78 | usage(var_usage); |
aed022ab EB |
79 | |
80 | if (strcmp(argv[1], "-l") == 0) { | |
ef90d6d4 | 81 | git_config(show_config, NULL); |
aed022ab EB |
82 | list_vars(); |
83 | return 0; | |
84 | } | |
ef90d6d4 | 85 | git_config(git_default_config, NULL); |
aed022ab EB |
86 | val = read_var(argv[1]); |
87 | if (!val) | |
88 | usage(var_usage); | |
a6080a0a | 89 | |
aed022ab | 90 | printf("%s\n", val); |
a6080a0a | 91 | |
aed022ab EB |
92 | return 0; |
93 | } |