Merge branch 'ml/worktree'
[git] / builtin-config.c
1 #include "builtin.h"
2 #include "cache.h"
3
4 static const char git_config_set_usage[] =
5 "git-config [ --global | --system ] [ --bool | --int ] [ -z | --null ] [--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";
6
7 static char *key;
8 static regex_t *key_regexp;
9 static regex_t *regexp;
10 static int show_keys;
11 static int use_key_regexp;
12 static int do_all;
13 static int do_not_match;
14 static int seen;
15 static char delim = '=';
16 static char key_delim = ' ';
17 static char term = '\n';
18 static enum { T_RAW, T_INT, T_BOOL } type = T_RAW;
19
20 static int show_all_config(const char *key_, const char *value_)
21 {
22         if (value_)
23                 printf("%s%c%s%c", key_, delim, value_, term);
24         else
25                 printf("%s%c", key_, term);
26         return 0;
27 }
28
29 static int show_config(const char* key_, const char* value_)
30 {
31         char value[256];
32         const char *vptr = value;
33         int dup_error = 0;
34
35         if (!use_key_regexp && strcmp(key_, key))
36                 return 0;
37         if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
38                 return 0;
39         if (regexp != NULL &&
40                          (do_not_match ^
41                           regexec(regexp, (value_?value_:""), 0, NULL, 0)))
42                 return 0;
43
44         if (show_keys) {
45                 if (value_)
46                         printf("%s%c", key_, key_delim);
47                 else
48                         printf("%s", key_);
49         }
50         if (seen && !do_all)
51                 dup_error = 1;
52         if (type == T_INT)
53                 sprintf(value, "%d", git_config_int(key_, value_?value_:""));
54         else if (type == T_BOOL)
55                 vptr = git_config_bool(key_, value_) ? "true" : "false";
56         else
57                 vptr = value_?value_:"";
58         seen++;
59         if (dup_error) {
60                 error("More than one value for the key %s: %s",
61                                 key_, vptr);
62         }
63         else
64                 printf("%s%c", vptr, term);
65
66         return 0;
67 }
68
69 static int get_value(const char* key_, const char* regex_)
70 {
71         int ret = -1;
72         char *tl;
73         char *global = NULL, *repo_config = NULL;
74         const char *system_wide = NULL, *local;
75
76         local = getenv(CONFIG_ENVIRONMENT);
77         if (!local) {
78                 const char *home = getenv("HOME");
79                 local = getenv(CONFIG_LOCAL_ENVIRONMENT);
80                 if (!local)
81                         local = repo_config = xstrdup(git_path("config"));
82                 if (home)
83                         global = xstrdup(mkpath("%s/.gitconfig", home));
84                 system_wide = ETC_GITCONFIG;
85         }
86
87         key = xstrdup(key_);
88         for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
89                 *tl = tolower(*tl);
90         for (tl=key; *tl && *tl != '.'; ++tl)
91                 *tl = tolower(*tl);
92
93         if (use_key_regexp) {
94                 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
95                 if (regcomp(key_regexp, key, REG_EXTENDED)) {
96                         fprintf(stderr, "Invalid key pattern: %s\n", key_);
97                         goto free_strings;
98                 }
99         }
100
101         if (regex_) {
102                 if (regex_[0] == '!') {
103                         do_not_match = 1;
104                         regex_++;
105                 }
106
107                 regexp = (regex_t*)xmalloc(sizeof(regex_t));
108                 if (regcomp(regexp, regex_, REG_EXTENDED)) {
109                         fprintf(stderr, "Invalid pattern: %s\n", regex_);
110                         goto free_strings;
111                 }
112         }
113
114         if (do_all && system_wide)
115                 git_config_from_file(show_config, system_wide);
116         if (do_all && global)
117                 git_config_from_file(show_config, global);
118         git_config_from_file(show_config, local);
119         if (!do_all && !seen && global)
120                 git_config_from_file(show_config, global);
121         if (!do_all && !seen && system_wide)
122                 git_config_from_file(show_config, system_wide);
123
124         free(key);
125         if (regexp) {
126                 regfree(regexp);
127                 free(regexp);
128         }
129
130         if (do_all)
131                 ret = !seen;
132         else
133                 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
134
135 free_strings:
136         free(repo_config);
137         free(global);
138         return ret;
139 }
140
141 char *normalize_value(const char *key, const char *value)
142 {
143         char *normalized;
144
145         if (!value)
146                 return NULL;
147
148         if (type == T_RAW)
149                 normalized = xstrdup(value);
150         else {
151                 normalized = xmalloc(64);
152                 if (type == T_INT) {
153                         int v = git_config_int(key, value);
154                         sprintf(normalized, "%d", v);
155                 }
156                 else if (type == T_BOOL)
157                         sprintf(normalized, "%s",
158                                 git_config_bool(key, value) ? "true" : "false");
159         }
160
161         return normalized;
162 }
163
164 int cmd_config(int argc, const char **argv, const char *prefix)
165 {
166         int nongit = 0;
167         char* value;
168         setup_git_directory_gently(&nongit);
169
170         while (1 < argc) {
171                 if (!strcmp(argv[1], "--int"))
172                         type = T_INT;
173                 else if (!strcmp(argv[1], "--bool"))
174                         type = T_BOOL;
175                 else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l"))
176                         return git_config(show_all_config);
177                 else if (!strcmp(argv[1], "--global")) {
178                         char *home = getenv("HOME");
179                         if (home) {
180                                 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
181                                 setenv("GIT_CONFIG", user_config, 1);
182                                 free(user_config);
183                         } else {
184                                 die("$HOME not set");
185                         }
186                 }
187                 else if (!strcmp(argv[1], "--system"))
188                         setenv("GIT_CONFIG", ETC_GITCONFIG, 1);
189                 else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
190                         term = '\0';
191                         delim = '\n';
192                         key_delim = '\n';
193                 }
194                 else if (!strcmp(argv[1], "--rename-section")) {
195                         int ret;
196                         if (argc != 4)
197                                 usage(git_config_set_usage);
198                         ret = git_config_rename_section(argv[2], argv[3]);
199                         if (ret < 0)
200                                 return ret;
201                         if (ret == 0) {
202                                 fprintf(stderr, "No such section!\n");
203                                 return 1;
204                         }
205                         return 0;
206                 }
207                 else if (!strcmp(argv[1], "--remove-section")) {
208                         int ret;
209                         if (argc != 3)
210                                 usage(git_config_set_usage);
211                         ret = git_config_rename_section(argv[2], NULL);
212                         if (ret < 0)
213                                 return ret;
214                         if (ret == 0) {
215                                 fprintf(stderr, "No such section!\n");
216                                 return 1;
217                         }
218                         return 0;
219                 }
220                 else
221                         break;
222                 argc--;
223                 argv++;
224         }
225
226         switch (argc) {
227         case 2:
228                 return get_value(argv[1], NULL);
229         case 3:
230                 if (!strcmp(argv[1], "--unset"))
231                         return git_config_set(argv[2], NULL);
232                 else if (!strcmp(argv[1], "--unset-all"))
233                         return git_config_set_multivar(argv[2], NULL, NULL, 1);
234                 else if (!strcmp(argv[1], "--get"))
235                         return get_value(argv[2], NULL);
236                 else if (!strcmp(argv[1], "--get-all")) {
237                         do_all = 1;
238                         return get_value(argv[2], NULL);
239                 } else if (!strcmp(argv[1], "--get-regexp")) {
240                         show_keys = 1;
241                         use_key_regexp = 1;
242                         do_all = 1;
243                         return get_value(argv[2], NULL);
244                 } else {
245                         value = normalize_value(argv[1], argv[2]);
246                         return git_config_set(argv[1], value);
247                 }
248         case 4:
249                 if (!strcmp(argv[1], "--unset"))
250                         return git_config_set_multivar(argv[2], NULL, argv[3], 0);
251                 else if (!strcmp(argv[1], "--unset-all"))
252                         return git_config_set_multivar(argv[2], NULL, argv[3], 1);
253                 else if (!strcmp(argv[1], "--get"))
254                         return get_value(argv[2], argv[3]);
255                 else if (!strcmp(argv[1], "--get-all")) {
256                         do_all = 1;
257                         return get_value(argv[2], argv[3]);
258                 } else if (!strcmp(argv[1], "--get-regexp")) {
259                         show_keys = 1;
260                         use_key_regexp = 1;
261                         do_all = 1;
262                         return get_value(argv[2], argv[3]);
263                 } else if (!strcmp(argv[1], "--add")) {
264                         value = normalize_value(argv[2], argv[3]);
265                         return git_config_set_multivar(argv[2], value, "^$", 0);
266                 } else if (!strcmp(argv[1], "--replace-all")) {
267                         value = normalize_value(argv[2], argv[3]);
268                         return git_config_set_multivar(argv[2], value, NULL, 1);
269                 } else {
270                         value = normalize_value(argv[1], argv[2]);
271                         return git_config_set_multivar(argv[1], value, argv[3], 0);
272                 }
273         case 5:
274                 if (!strcmp(argv[1], "--replace-all")) {
275                         value = normalize_value(argv[2], argv[3]);
276                         return git_config_set_multivar(argv[2], value, argv[4], 1);
277                 }
278         case 1:
279         default:
280                 usage(git_config_set_usage);
281         }
282         return 0;
283 }