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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" |
b2141fc1 | 7 | #include "config.h" |
aed022ab | 8 | |
9fabb6d7 | 9 | static const char var_usage[] = "git var (-l | <variable>)"; |
aed022ab | 10 | |
44fcb497 JN |
11 | static const char *editor(int flag) |
12 | { | |
13 | const char *pgm = git_editor(); | |
14 | ||
f9bc573f | 15 | if (!pgm && flag & IDENT_STRICT) |
44fcb497 JN |
16 | die("Terminal is dumb, but EDITOR unset"); |
17 | ||
18 | return pgm; | |
19 | } | |
20 | ||
63618245 JN |
21 | static const char *pager(int flag) |
22 | { | |
64778d24 | 23 | const char *pgm = git_pager(1); |
63618245 JN |
24 | |
25 | if (!pgm) | |
26 | pgm = "cat"; | |
27 | return pgm; | |
28 | } | |
29 | ||
aed022ab EB |
30 | struct git_var { |
31 | const char *name; | |
749be728 | 32 | const char *(*read)(int); |
aed022ab EB |
33 | }; |
34 | static struct git_var git_vars[] = { | |
35 | { "GIT_COMMITTER_IDENT", git_committer_info }, | |
36 | { "GIT_AUTHOR_IDENT", git_author_info }, | |
44fcb497 | 37 | { "GIT_EDITOR", editor }, |
63618245 | 38 | { "GIT_PAGER", pager }, |
aed022ab EB |
39 | { "", NULL }, |
40 | }; | |
41 | ||
42 | static void list_vars(void) | |
43 | { | |
44 | struct git_var *ptr; | |
44fcb497 JN |
45 | const char *val; |
46 | ||
eeefa7c9 | 47 | for (ptr = git_vars; ptr->read; ptr++) |
44fcb497 JN |
48 | if ((val = ptr->read(0))) |
49 | printf("%s=%s\n", ptr->name, val); | |
aed022ab EB |
50 | } |
51 | ||
52 | static const char *read_var(const char *var) | |
53 | { | |
54 | struct git_var *ptr; | |
55 | const char *val; | |
56 | val = NULL; | |
eeefa7c9 | 57 | for (ptr = git_vars; ptr->read; ptr++) { |
aed022ab | 58 | if (strcmp(var, ptr->name) == 0) { |
f9bc573f | 59 | val = ptr->read(IDENT_STRICT); |
aed022ab EB |
60 | break; |
61 | } | |
62 | } | |
63 | return val; | |
64 | } | |
65 | ||
ef90d6d4 | 66 | static int show_config(const char *var, const char *value, void *cb) |
e1b10391 LT |
67 | { |
68 | if (value) | |
69 | printf("%s=%s\n", var, value); | |
70 | else | |
71 | printf("%s\n", var); | |
ef90d6d4 | 72 | return git_default_config(var, value, cb); |
e1b10391 LT |
73 | } |
74 | ||
55b6745d | 75 | int cmd_var(int argc, const char **argv, const char *prefix) |
aed022ab | 76 | { |
2bc8c1a8 NTND |
77 | const char *val = NULL; |
78 | if (argc != 2) | |
aed022ab | 79 | usage(var_usage); |
aed022ab EB |
80 | |
81 | if (strcmp(argv[1], "-l") == 0) { | |
ef90d6d4 | 82 | git_config(show_config, NULL); |
aed022ab EB |
83 | list_vars(); |
84 | return 0; | |
85 | } | |
ef90d6d4 | 86 | git_config(git_default_config, NULL); |
aed022ab EB |
87 | val = read_var(argv[1]); |
88 | if (!val) | |
89 | usage(var_usage); | |
a6080a0a | 90 | |
aed022ab | 91 | printf("%s\n", val); |
a6080a0a | 92 | |
aed022ab EB |
93 | return 0; |
94 | } |