t/helper/test-config.c

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