git.oblomov.eu Git - git/blob - t/helper/test-oidmap.c

   1 #include "test-tool.h"
   2 #include "cache.h"
   3 #include "oidmap.h"
   4 #include "strbuf.h"
   5
   6 /* key is an oid and value is a name (could be a refname for example) */
   7 struct test_entry {
   8         struct oidmap_entry entry;
   9         char name[FLEX_ARRAY];
  10 };
  11
  12 #define DELIM " \t\r\n"
  13
  14 /*
  15  * Read stdin line by line and print result of commands to stdout:
  16  *
  17  * hash oidkey -> sha1hash(oidkey)
  18  * put oidkey namevalue -> NULL / old namevalue
  19  * get oidkey -> NULL / namevalue
  20  * remove oidkey -> NULL / old namevalue
  21  * iterate -> oidkey1 namevalue1\noidkey2 namevalue2\n...
  22  *
  23  */
  24 int cmd__oidmap(int argc, const char **argv)
  25 {
  26         struct strbuf line = STRBUF_INIT;
  27         struct oidmap map = OIDMAP_INIT;
  28
  29         setup_git_directory();
  30
  31         /* init oidmap */
  32         oidmap_init(&map, 0);
  33
  34         /* process commands from stdin */
  35         while (strbuf_getline(&line, stdin) != EOF) {
  36                 char *cmd, *p1 = NULL, *p2 = NULL;
  37                 struct test_entry *entry;
  38                 struct object_id oid;
  39
  40                 /* break line into command and up to two parameters */
  41                 cmd = strtok(line.buf, DELIM);
  42                 /* ignore empty lines */
  43                 if (!cmd || *cmd == '#')
  44                         continue;
  45
  46                 p1 = strtok(NULL, DELIM);
  47                 if (p1)
  48                         p2 = strtok(NULL, DELIM);
  49
  50                 if (!strcmp("put", cmd) && p1 && p2) {
  51
  52                         if (get_oid(p1, &oid)) {
  53                                 printf("Unknown oid: %s\n", p1);
  54                                 continue;
  55                         }
  56
  57                         /* create entry with oid_key = p1, name_value = p2 */
  58                         FLEX_ALLOC_STR(entry, name, p2);
  59                         oidcpy(&entry->entry.oid, &oid);
  60
  61                         /* add / replace entry */
  62                         entry = oidmap_put(&map, entry);
  63
  64                         /* print and free replaced entry, if any */
  65                         puts(entry ? entry->name : "NULL");
  66                         free(entry);
  67
  68                 } else if (!strcmp("get", cmd) && p1) {
  69
  70                         if (get_oid(p1, &oid)) {
  71                                 printf("Unknown oid: %s\n", p1);
  72                                 continue;
  73                         }
  74
  75                         /* lookup entry in oidmap */
  76                         entry = oidmap_get(&map, &oid);
  77
  78                         /* print result */
  79                         puts(entry ? entry->name : "NULL");
  80
  81                 } else if (!strcmp("remove", cmd) && p1) {
  82
  83                         if (get_oid(p1, &oid)) {
  84                                 printf("Unknown oid: %s\n", p1);
  85                                 continue;
  86                         }
  87
  88                         /* remove entry from oidmap */
  89                         entry = oidmap_remove(&map, &oid);
  90
  91                         /* print result and free entry*/
  92                         puts(entry ? entry->name : "NULL");
  93                         free(entry);
  94
  95                 } else if (!strcmp("iterate", cmd)) {
  96
  97                         struct oidmap_iter iter;
  98                         oidmap_iter_init(&map, &iter);
  99                         while ((entry = oidmap_iter_next(&iter)))
 100                                 printf("%s %s\n", oid_to_hex(&entry->entry.oid), entry->name);
 101
 102                 } else {
 103
 104                         printf("Unknown command %s\n", cmd);
 105
 106                 }
 107         }
 108
 109         strbuf_release(&line);
 110         oidmap_free(&map, 1);
 111         return 0;
 112 }