Merge branch 'jk/close-duped-fd-before-unlock-for-bundle'
[git] / t / helper / test-config.c
1 #include "test-tool.h"
2 #include "cache.h"
3 #include "config.h"
4 #include "string-list.h"
5
6 /*
7  * This program exposes the C API of the configuration mechanism
8  * as a set of simple commands in order to facilitate testing.
9  *
10  * Reads stdin and prints result of command to stdout:
11  *
12  * get_value -> prints the value with highest priority for the entered key
13  *
14  * get_value_multi -> prints all values for the entered key in increasing order
15  *                   of priority
16  *
17  * get_int -> print integer value for the entered key or die
18  *
19  * get_bool -> print bool value for the entered key or die
20  *
21  * get_string -> print string value for the entered key or die
22  *
23  * configset_get_value -> returns value with the highest priority for the entered key
24  *                      from a config_set constructed from files entered as arguments.
25  *
26  * configset_get_value_multi -> returns value_list for the entered key sorted in
27  *                              ascending order of priority from a config_set
28  *                              constructed from files entered as arguments.
29  *
30  * iterate -> iterate over all values using git_config(), and print some
31  *            data for each
32  *
33  * Examples:
34  *
35  * To print the value with highest priority for key "foo.bAr Baz.rock":
36  *      test-tool config get_value "foo.bAr Baz.rock"
37  *
38  */
39
40 static const char *scope_name(enum config_scope scope)
41 {
42         switch (scope) {
43         case CONFIG_SCOPE_SYSTEM:
44                 return "system";
45         case CONFIG_SCOPE_GLOBAL:
46                 return "global";
47         case CONFIG_SCOPE_REPO:
48                 return "repo";
49         case CONFIG_SCOPE_CMDLINE:
50                 return "cmdline";
51         default:
52                 return "unknown";
53         }
54 }
55 static int iterate_cb(const char *var, const char *value, void *data)
56 {
57         static int nr;
58
59         if (nr++)
60                 putchar('\n');
61
62         printf("key=%s\n", var);
63         printf("value=%s\n", value ? value : "(null)");
64         printf("origin=%s\n", current_config_origin_type());
65         printf("name=%s\n", current_config_name());
66         printf("scope=%s\n", scope_name(current_config_scope()));
67
68         return 0;
69 }
70
71 static int early_config_cb(const char *var, const char *value, void *vdata)
72 {
73         const char *key = vdata;
74
75         if (!strcmp(key, var))
76                 printf("%s\n", value);
77
78         return 0;
79 }
80
81 int cmd__config(int argc, const char **argv)
82 {
83         int i, val;
84         const char *v;
85         const struct string_list *strptr;
86         struct config_set cs;
87
88         if (argc == 3 && !strcmp(argv[1], "read_early_config")) {
89                 read_early_config(early_config_cb, (void *)argv[2]);
90                 return 0;
91         }
92
93         setup_git_directory();
94
95         git_configset_init(&cs);
96
97         if (argc < 2) {
98                 fprintf(stderr, "Please, provide a command name on the command-line\n");
99                 goto exit1;
100         } else if (argc == 3 && !strcmp(argv[1], "get_value")) {
101                 if (!git_config_get_value(argv[2], &v)) {
102                         if (!v)
103                                 printf("(NULL)\n");
104                         else
105                                 printf("%s\n", v);
106                         goto exit0;
107                 } else {
108                         printf("Value not found for \"%s\"\n", argv[2]);
109                         goto exit1;
110                 }
111         } else if (argc == 3 && !strcmp(argv[1], "get_value_multi")) {
112                 strptr = git_config_get_value_multi(argv[2]);
113                 if (strptr) {
114                         for (i = 0; i < strptr->nr; i++) {
115                                 v = strptr->items[i].string;
116                                 if (!v)
117                                         printf("(NULL)\n");
118                                 else
119                                         printf("%s\n", v);
120                         }
121                         goto exit0;
122                 } else {
123                         printf("Value not found for \"%s\"\n", argv[2]);
124                         goto exit1;
125                 }
126         } else if (argc == 3 && !strcmp(argv[1], "get_int")) {
127                 if (!git_config_get_int(argv[2], &val)) {
128                         printf("%d\n", val);
129                         goto exit0;
130                 } else {
131                         printf("Value not found for \"%s\"\n", argv[2]);
132                         goto exit1;
133                 }
134         } else if (argc == 3 && !strcmp(argv[1], "get_bool")) {
135                 if (!git_config_get_bool(argv[2], &val)) {
136                         printf("%d\n", val);
137                         goto exit0;
138                 } else {
139                         printf("Value not found for \"%s\"\n", argv[2]);
140                         goto exit1;
141                 }
142         } else if (argc == 3 && !strcmp(argv[1], "get_string")) {
143                 if (!git_config_get_string_const(argv[2], &v)) {
144                         printf("%s\n", v);
145                         goto exit0;
146                 } else {
147                         printf("Value not found for \"%s\"\n", argv[2]);
148                         goto exit1;
149                 }
150         } else if (!strcmp(argv[1], "configset_get_value")) {
151                 for (i = 3; i < argc; i++) {
152                         int err;
153                         if ((err = git_configset_add_file(&cs, argv[i]))) {
154                                 fprintf(stderr, "Error (%d) reading configuration file %s.\n", err, argv[i]);
155                                 goto exit2;
156                         }
157                 }
158                 if (!git_configset_get_value(&cs, argv[2], &v)) {
159                         if (!v)
160                                 printf("(NULL)\n");
161                         else
162                                 printf("%s\n", v);
163                         goto exit0;
164                 } else {
165                         printf("Value not found for \"%s\"\n", argv[2]);
166                         goto exit1;
167                 }
168         } else if (!strcmp(argv[1], "configset_get_value_multi")) {
169                 for (i = 3; i < argc; i++) {
170                         int err;
171                         if ((err = git_configset_add_file(&cs, argv[i]))) {
172                                 fprintf(stderr, "Error (%d) reading configuration file %s.\n", err, argv[i]);
173                                 goto exit2;
174                         }
175                 }
176                 strptr = git_configset_get_value_multi(&cs, argv[2]);
177                 if (strptr) {
178                         for (i = 0; i < strptr->nr; i++) {
179                                 v = strptr->items[i].string;
180                                 if (!v)
181                                         printf("(NULL)\n");
182                                 else
183                                         printf("%s\n", v);
184                         }
185                         goto exit0;
186                 } else {
187                         printf("Value not found for \"%s\"\n", argv[2]);
188                         goto exit1;
189                 }
190         } else if (!strcmp(argv[1], "iterate")) {
191                 git_config(iterate_cb, NULL);
192                 goto exit0;
193         }
194
195         die("%s: Please check the syntax and the function name", argv[0]);
196
197 exit0:
198         git_configset_clear(&cs);
199         return 0;
200
201 exit1:
202         git_configset_clear(&cs);
203         return 1;
204
205 exit2:
206         git_configset_clear(&cs);
207         return 2;
208 }