Code

git-log: detect dup and fdopen failure
[git.git] / builtin-config.c
1 #include "builtin.h"
2 #include "cache.h"
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";
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;
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 }
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;
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;
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);
66         return 0;
67 }
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;
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         }
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);
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         }
101         if (regex_) {
102                 if (regex_[0] == '!') {
103                         do_not_match = 1;
104                         regex_++;
105                 }
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         }
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);
124         free(key);
125         if (regexp) {
126                 regfree(regexp);
127                 free(regexp);
128         }
130         if (do_all)
131                 ret = !seen;
132         else
133                 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
135 free_strings:
136         free(repo_config);
137         free(global);
138         return ret;
141 int cmd_config(int argc, const char **argv, const char *prefix)
143         int nongit = 0;
144         setup_git_directory_gently(&nongit);
146         while (1 < argc) {
147                 if (!strcmp(argv[1], "--int"))
148                         type = T_INT;
149                 else if (!strcmp(argv[1], "--bool"))
150                         type = T_BOOL;
151                 else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l"))
152                         return git_config(show_all_config);
153                 else if (!strcmp(argv[1], "--global")) {
154                         char *home = getenv("HOME");
155                         if (home) {
156                                 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
157                                 setenv("GIT_CONFIG", user_config, 1);
158                                 free(user_config);
159                         } else {
160                                 die("$HOME not set");
161                         }
162                 }
163                 else if (!strcmp(argv[1], "--system"))
164                         setenv("GIT_CONFIG", ETC_GITCONFIG, 1);
165                 else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
166                         term = '\0';
167                         delim = '\n';
168                         key_delim = '\n';
169                 }
170                 else if (!strcmp(argv[1], "--rename-section")) {
171                         int ret;
172                         if (argc != 4)
173                                 usage(git_config_set_usage);
174                         ret = git_config_rename_section(argv[2], argv[3]);
175                         if (ret < 0)
176                                 return ret;
177                         if (ret == 0) {
178                                 fprintf(stderr, "No such section!\n");
179                                 return 1;
180                         }
181                         return 0;
182                 }
183                 else if (!strcmp(argv[1], "--remove-section")) {
184                         int ret;
185                         if (argc != 3)
186                                 usage(git_config_set_usage);
187                         ret = git_config_rename_section(argv[2], NULL);
188                         if (ret < 0)
189                                 return ret;
190                         if (ret == 0) {
191                                 fprintf(stderr, "No such section!\n");
192                                 return 1;
193                         }
194                         return 0;
195                 }
196                 else
197                         break;
198                 argc--;
199                 argv++;
200         }
202         switch (argc) {
203         case 2:
204                 return get_value(argv[1], NULL);
205         case 3:
206                 if (!strcmp(argv[1], "--unset"))
207                         return git_config_set(argv[2], NULL);
208                 else if (!strcmp(argv[1], "--unset-all"))
209                         return git_config_set_multivar(argv[2], NULL, NULL, 1);
210                 else if (!strcmp(argv[1], "--get"))
211                         return get_value(argv[2], NULL);
212                 else if (!strcmp(argv[1], "--get-all")) {
213                         do_all = 1;
214                         return get_value(argv[2], NULL);
215                 } else if (!strcmp(argv[1], "--get-regexp")) {
216                         show_keys = 1;
217                         use_key_regexp = 1;
218                         do_all = 1;
219                         return get_value(argv[2], NULL);
220                 } else
222                         return git_config_set(argv[1], argv[2]);
223         case 4:
224                 if (!strcmp(argv[1], "--unset"))
225                         return git_config_set_multivar(argv[2], NULL, argv[3], 0);
226                 else if (!strcmp(argv[1], "--unset-all"))
227                         return git_config_set_multivar(argv[2], NULL, argv[3], 1);
228                 else if (!strcmp(argv[1], "--get"))
229                         return get_value(argv[2], argv[3]);
230                 else if (!strcmp(argv[1], "--get-all")) {
231                         do_all = 1;
232                         return get_value(argv[2], argv[3]);
233                 } else if (!strcmp(argv[1], "--get-regexp")) {
234                         show_keys = 1;
235                         use_key_regexp = 1;
236                         do_all = 1;
237                         return get_value(argv[2], argv[3]);
238                 } else if (!strcmp(argv[1], "--add"))
239                         return git_config_set_multivar(argv[2], argv[3], "^$", 0);
240                 else if (!strcmp(argv[1], "--replace-all"))
242                         return git_config_set_multivar(argv[2], argv[3], NULL, 1);
243                 else
245                         return git_config_set_multivar(argv[1], argv[2], argv[3], 0);
246         case 5:
247                 if (!strcmp(argv[1], "--replace-all"))
248                         return git_config_set_multivar(argv[2], argv[3], argv[4], 1);
249         case 1:
250         default:
251                 usage(git_config_set_usage);
252         }
253         return 0;