config: Complete documentation of --get-regexp
[git/git.git] / builtin-config.c
CommitLineData
e12c095a 1#include "builtin.h"
1b1e59c5
JS
2#include "cache.h"
3
4static const char git_config_set_usage[] =
9bc20aa7 5"git-config [ --global | --system ] [ --bool | --int ] [--get | --get-all | --get-regexp | --replace-all | --add | --unset | --unset-all] name [value [value_regex]] | --rename-section old_name new_name | --remove-section name | --list";
4ddba79d 6
96f1e58f
DR
7static char *key;
8static regex_t *key_regexp;
9static regex_t *regexp;
10static int show_keys;
11static int use_key_regexp;
12static int do_all;
13static int do_not_match;
14static int seen;
7162dff3 15static enum { T_RAW, T_INT, T_BOOL } type = T_RAW;
4ddba79d 16
de791f15
PB
17static int show_all_config(const char *key_, const char *value_)
18{
19 if (value_)
20 printf("%s=%s\n", key_, value_);
21 else
22 printf("%s\n", key_);
23 return 0;
24}
25
4ddba79d
JS
26static int show_config(const char* key_, const char* value_)
27{
e098c6f8
JH
28 char value[256];
29 const char *vptr = value;
8f5ff31f 30 int dup_error = 0;
e098c6f8 31
8f5ff31f
JS
32 if (!use_key_regexp && strcmp(key_, key))
33 return 0;
34 if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
35 return 0;
36 if (regexp != NULL &&
f98d863d 37 (do_not_match ^
acb70149 38 regexec(regexp, (value_?value_:""), 0, NULL, 0)))
8f5ff31f
JS
39 return 0;
40
41 if (show_keys)
42 printf("%s ", key_);
43 if (seen && !do_all)
44 dup_error = 1;
45 if (type == T_INT)
acb70149 46 sprintf(value, "%d", git_config_int(key_, value_?value_:""));
8f5ff31f
JS
47 else if (type == T_BOOL)
48 vptr = git_config_bool(key_, value_) ? "true" : "false";
49 else
acb70149 50 vptr = value_?value_:"";
8f5ff31f
JS
51 seen++;
52 if (dup_error) {
53 error("More than one value for the key %s: %s",
54 key_, vptr);
4ddba79d 55 }
8f5ff31f
JS
56 else
57 printf("%s\n", vptr);
58
4ddba79d
JS
59 return 0;
60}
61
62static int get_value(const char* key_, const char* regex_)
63{
5f1a63e0 64 int ret = -1;
d14f7764 65 char *tl;
5f1a63e0 66 char *global = NULL, *repo_config = NULL;
32043c9f 67 const char *system_wide = NULL, *local;
5f1a63e0 68
d4ebc36c 69 local = getenv(CONFIG_ENVIRONMENT);
5f1a63e0
JS
70 if (!local) {
71 const char *home = getenv("HOME");
d4ebc36c 72 local = getenv(CONFIG_LOCAL_ENVIRONMENT);
5f1a63e0 73 if (!local)
9befac47 74 local = repo_config = xstrdup(git_path("config"));
5f1a63e0 75 if (home)
9befac47 76 global = xstrdup(mkpath("%s/.gitconfig", home));
32043c9f 77 system_wide = ETC_GITCONFIG;
5f1a63e0 78 }
4ddba79d 79
9befac47 80 key = xstrdup(key_);
d14f7764
LT
81 for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
82 *tl = tolower(*tl);
83 for (tl=key; *tl && *tl != '.'; ++tl)
84 *tl = tolower(*tl);
4ddba79d 85
2fa9a0fb 86 if (use_key_regexp) {
2d7320d0 87 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
2fa9a0fb 88 if (regcomp(key_regexp, key, REG_EXTENDED)) {
e098c6f8 89 fprintf(stderr, "Invalid key pattern: %s\n", key_);
5f1a63e0 90 goto free_strings;
2fa9a0fb
JS
91 }
92 }
93
4ddba79d 94 if (regex_) {
f98d863d
JS
95 if (regex_[0] == '!') {
96 do_not_match = 1;
97 regex_++;
98 }
99
2d7320d0 100 regexp = (regex_t*)xmalloc(sizeof(regex_t));
0a152171 101 if (regcomp(regexp, regex_, REG_EXTENDED)) {
4ddba79d 102 fprintf(stderr, "Invalid pattern: %s\n", regex_);
5f1a63e0 103 goto free_strings;
4ddba79d
JS
104 }
105 }
106
32043c9f
JS
107 if (do_all && system_wide)
108 git_config_from_file(show_config, system_wide);
5f1a63e0
JS
109 if (do_all && global)
110 git_config_from_file(show_config, global);
111 git_config_from_file(show_config, local);
112 if (!do_all && !seen && global)
113 git_config_from_file(show_config, global);
32043c9f
JS
114 if (!do_all && !seen && system_wide)
115 git_config_from_file(show_config, system_wide);
5f1a63e0 116
4ddba79d 117 free(key);
0a152171
AW
118 if (regexp) {
119 regfree(regexp);
120 free(regexp);
4ddba79d
JS
121 }
122
123 if (do_all)
5f1a63e0
JS
124 ret = !seen;
125 else
dc2613de 126 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
5f1a63e0
JS
127
128free_strings:
4cac42b1
JH
129 free(repo_config);
130 free(global);
5f1a63e0 131 return ret;
4ddba79d 132}
1b1e59c5 133
e0d10e1c 134int cmd_config(int argc, const char **argv, const char *prefix)
1b1e59c5 135{
4d599e6b
LT
136 int nongit = 0;
137 setup_git_directory_gently(&nongit);
7162dff3
PB
138
139 while (1 < argc) {
140 if (!strcmp(argv[1], "--int"))
141 type = T_INT;
142 else if (!strcmp(argv[1], "--bool"))
143 type = T_BOOL;
cfa24e18
JS
144 else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l"))
145 return git_config(show_all_config);
34eb3340
SE
146 else if (!strcmp(argv[1], "--global")) {
147 char *home = getenv("HOME");
148 if (home) {
149 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
150 setenv("GIT_CONFIG", user_config, 1);
151 free(user_config);
152 } else {
153 die("$HOME not set");
154 }
32043c9f
JS
155 }
156 else if (!strcmp(argv[1], "--system"))
157 setenv("GIT_CONFIG", ETC_GITCONFIG, 1);
158 else if (!strcmp(argv[1], "--rename-section")) {
0667fcfb
JS
159 int ret;
160 if (argc != 4)
161 usage(git_config_set_usage);
162 ret = git_config_rename_section(argv[2], argv[3]);
163 if (ret < 0)
164 return ret;
165 if (ret == 0) {
166 fprintf(stderr, "No such section!\n");
167 return 1;
168 }
169 return 0;
32043c9f 170 }
118f8b24
PB
171 else if (!strcmp(argv[1], "--remove-section")) {
172 int ret;
173 if (argc != 3)
174 usage(git_config_set_usage);
175 ret = git_config_rename_section(argv[2], NULL);
176 if (ret < 0)
177 return ret;
178 if (ret == 0) {
179 fprintf(stderr, "No such section!\n");
180 return 1;
181 }
182 return 0;
183 }
32043c9f 184 else
7162dff3
PB
185 break;
186 argc--;
187 argv++;
188 }
189
1b1e59c5
JS
190 switch (argc) {
191 case 2:
4ddba79d 192 return get_value(argv[1], NULL);
1b1e59c5
JS
193 case 3:
194 if (!strcmp(argv[1], "--unset"))
195 return git_config_set(argv[2], NULL);
4ddba79d
JS
196 else if (!strcmp(argv[1], "--unset-all"))
197 return git_config_set_multivar(argv[2], NULL, NULL, 1);
198 else if (!strcmp(argv[1], "--get"))
199 return get_value(argv[2], NULL);
200 else if (!strcmp(argv[1], "--get-all")) {
201 do_all = 1;
202 return get_value(argv[2], NULL);
2fa9a0fb
JS
203 } else if (!strcmp(argv[1], "--get-regexp")) {
204 show_keys = 1;
205 use_key_regexp = 1;
206 do_all = 1;
207 return get_value(argv[2], NULL);
4ddba79d
JS
208 } else
209
1b1e59c5
JS
210 return git_config_set(argv[1], argv[2]);
211 case 4:
212 if (!strcmp(argv[1], "--unset"))
4ddba79d
JS
213 return git_config_set_multivar(argv[2], NULL, argv[3], 0);
214 else if (!strcmp(argv[1], "--unset-all"))
215 return git_config_set_multivar(argv[2], NULL, argv[3], 1);
216 else if (!strcmp(argv[1], "--get"))
217 return get_value(argv[2], argv[3]);
218 else if (!strcmp(argv[1], "--get-all")) {
219 do_all = 1;
220 return get_value(argv[2], argv[3]);
2fa9a0fb
JS
221 } else if (!strcmp(argv[1], "--get-regexp")) {
222 show_keys = 1;
223 use_key_regexp = 1;
224 do_all = 1;
225 return get_value(argv[2], argv[3]);
89c4afe0
BG
226 } else if (!strcmp(argv[1], "--add"))
227 return git_config_set_multivar(argv[2], argv[3], "^$", 0);
228 else if (!strcmp(argv[1], "--replace-all"))
4ddba79d
JS
229
230 return git_config_set_multivar(argv[2], argv[3], NULL, 1);
1b1e59c5 231 else
4ddba79d
JS
232
233 return git_config_set_multivar(argv[1], argv[2], argv[3], 0);
234 case 5:
235 if (!strcmp(argv[1], "--replace-all"))
236 return git_config_set_multivar(argv[2], argv[3], argv[4], 1);
237 case 1:
1b1e59c5
JS
238 default:
239 usage(git_config_set_usage);
240 }
241 return 0;
242}