Merge branch 'sb/pull-rebase-submodule'
[git] / t / helper / test-config.c
1 #include "cache.h"
2 #include "config.h"
3 #include "string-list.h"
4
5 /*
6  * This program exposes the C API of the configuration mechanism
7  * as a set of simple commands in order to facilitate testing.
8  *
9  * Reads stdin and prints result of command to stdout:
10  *
11  * get_value -> prints the value with highest priority for the entered key
12  *
13  * get_value_multi -> prints all values for the entered key in increasing order
14  *                   of priority
15  *
16  * get_int -> print integer value for the entered key or die
17  *
18  * get_bool -> print bool value for the entered key or die
19  *
20  * get_string -> print string value for the entered key or die
21  *
22  * configset_get_value -> returns value with the highest priority for the entered key
23  *                      from a config_set constructed from files entered as arguments.
24  *
25  * configset_get_value_multi -> returns value_list for the entered key sorted in
26  *                              ascending order of priority from a config_set
27  *                              constructed from files entered as arguments.
28  *
29  * iterate -> iterate over all values using git_config(), and print some
30  *            data for each
31  *
32  * Examples:
33  *
34  * To print the value with highest priority for key "foo.bAr Baz.rock":
35  *      test-config get_value "foo.bAr Baz.rock"
36  *
37  */
38
39 static const char *scope_name(enum config_scope scope)
40 {
41         switch (scope) {
42         case CONFIG_SCOPE_SYSTEM:
43                 return "system";
44         case CONFIG_SCOPE_GLOBAL:
45                 return "global";
46         case CONFIG_SCOPE_REPO:
47                 return "repo";
48         case CONFIG_SCOPE_CMDLINE:
49                 return "cmdline";
50         default:
51                 return "unknown";
52         }
53 }
54 static int iterate_cb(const char *var, const char *value, void *data)
55 {
56         static int nr;
57
58         if (nr++)
59                 putchar('\n');
60
61         printf("key=%s\n", var);
62         printf("value=%s\n", value ? value : "(null)");
63         printf("origin=%s\n", current_config_origin_type());
64         printf("name=%s\n", current_config_name());
65         printf("scope=%s\n", scope_name(current_config_scope()));
66
67         return 0;
68 }
69
70 static int early_config_cb(const char *var, const char *value, void *vdata)
71 {
72         const char *key = vdata;
73
74         if (!strcmp(key, var))
75                 printf("%s\n", value);
76
77         return 0;
78 }
79
80 int cmd_main(int argc, const char **argv)
81 {
82         int i, val;
83         const char *v;
84         const struct string_list *strptr;
85         struct config_set cs;
86
87         if (argc == 3 && !strcmp(argv[1], "read_early_config")) {
88                 read_early_config(early_config_cb, (void *)argv[2]);
89                 return 0;
90         }
91
92         setup_git_directory();
93
94         git_configset_init(&cs);
95
96         if (argc < 2) {
97                 fprintf(stderr, "Please, provide a command name on the command-line\n");
98                 goto exit1;
99         } else if (argc == 3 && !strcmp(argv[1], "get_value")) {
100                 if (!git_config_get_value(argv[2], &v)) {
101                         if (!v)
102                                 printf("(NULL)\n");
103                         else
104                                 printf("%s\n", v);
105                         goto exit0;
106                 } else {
107                         printf("Value not found for \"%s\"\n", argv[2]);
108                         goto exit1;
109                 }
110         } else if (argc == 3 && !strcmp(argv[1], "get_value_multi")) {
111                 strptr = git_config_get_value_multi(argv[2]);
112                 if (strptr) {
113                         for (i = 0; i < strptr->nr; i++) {
114                                 v = strptr->items[i].string;
115                                 if (!v)
116                                         printf("(NULL)\n");
117                                 else
118                                         printf("%s\n", v);
119                         }
120                         goto exit0;
121                 } else {
122                         printf("Value not found for \"%s\"\n", argv[2]);
123                         goto exit1;
124                 }
125         } else if (argc == 3 && !strcmp(argv[1], "get_int")) {
126                 if (!git_config_get_int(argv[2], &val)) {
127                         printf("%d\n", val);
128                         goto exit0;
129                 } else {
130                         printf("Value not found for \"%s\"\n", argv[2]);
131                         goto exit1;
132                 }
133         } else if (argc == 3 && !strcmp(argv[1], "get_bool")) {
134                 if (!git_config_get_bool(argv[2], &val)) {
135                         printf("%d\n", val);
136                         goto exit0;
137                 } else {
138                         printf("Value not found for \"%s\"\n", argv[2]);
139                         goto exit1;
140                 }
141         } else if (argc == 3 && !strcmp(argv[1], "get_string")) {
142                 if (!git_config_get_string_const(argv[2], &v)) {
143                         printf("%s\n", v);
144                         goto exit0;
145                 } else {
146                         printf("Value not found for \"%s\"\n", argv[2]);
147                         goto exit1;
148                 }
149         } else if (!strcmp(argv[1], "configset_get_value")) {
150                 for (i = 3; i < argc; i++) {
151                         int err;
152                         if ((err = git_configset_add_file(&cs, argv[i]))) {
153                                 fprintf(stderr, "Error (%d) reading configuration file %s.\n", err, argv[i]);
154                                 goto exit2;
155                         }
156                 }
157                 if (!git_configset_get_value(&cs, argv[2], &v)) {
158                         if (!v)
159                                 printf("(NULL)\n");
160                         else
161                                 printf("%s\n", v);
162                         goto exit0;
163                 } else {
164                         printf("Value not found for \"%s\"\n", argv[2]);
165                         goto exit1;
166                 }
167         } else if (!strcmp(argv[1], "configset_get_value_multi")) {
168                 for (i = 3; i < argc; i++) {
169                         int err;
170                         if ((err = git_configset_add_file(&cs, argv[i]))) {
171                                 fprintf(stderr, "Error (%d) reading configuration file %s.\n", err, argv[i]);
172                                 goto exit2;
173                         }
174                 }
175                 strptr = git_configset_get_value_multi(&cs, argv[2]);
176                 if (strptr) {
177                         for (i = 0; i < strptr->nr; i++) {
178                                 v = strptr->items[i].string;
179                                 if (!v)
180                                         printf("(NULL)\n");
181                                 else
182                                         printf("%s\n", v);
183                         }
184                         goto exit0;
185                 } else {
186                         printf("Value not found for \"%s\"\n", argv[2]);
187                         goto exit1;
188                 }
189         } else if (!strcmp(argv[1], "iterate")) {
190                 git_config(iterate_cb, NULL);
191                 goto exit0;
192         }
193
194         die("%s: Please check the syntax and the function name", argv[0]);
195
196 exit0:
197         git_configset_clear(&cs);
198         return 0;
199
200 exit1:
201         git_configset_clear(&cs);
202         return 1;
203
204 exit2:
205         git_configset_clear(&cs);
206         return 2;
207 }