t/helper/test-config.c

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