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 }