oidset.c

   1 #include "cache.h"
   2 #include "oidset.h"
   3
   4 void oidset_init(struct oidset *set, size_t initial_size)
   5 {
   6         memset(&set->set, 0, sizeof(set->set));
   7         if (initial_size)
   8                 kh_resize_oid_set(&set->set, initial_size);
   9 }
  10
  11 int oidset_contains(const struct oidset *set, const struct object_id *oid)
  12 {
  13         khiter_t pos = kh_get_oid_set(&set->set, *oid);
  14         return pos != kh_end(&set->set);
  15 }
  16
  17 int oidset_insert(struct oidset *set, const struct object_id *oid)
  18 {
  19         int added;
  20         kh_put_oid_set(&set->set, *oid, &added);
  21         return !added;
  22 }
  23
  24 int oidset_remove(struct oidset *set, const struct object_id *oid)
  25 {
  26         khiter_t pos = kh_get_oid_set(&set->set, *oid);
  27         if (pos == kh_end(&set->set))
  28                 return 0;
  29         kh_del_oid_set(&set->set, pos);
  30         return 1;
  31 }
  32
  33 void oidset_clear(struct oidset *set)
  34 {
  35         kh_release_oid_set(&set->set);
  36         oidset_init(set, 0);
  37 }
  38
  39 void oidset_parse_file(struct oidset *set, const char *path)
  40 {
  41         oidset_parse_file_carefully(set, path, NULL, NULL);
  42 }
  43
  44 void oidset_parse_file_carefully(struct oidset *set, const char *path,
  45                                  oidset_parse_tweak_fn fn, void *cbdata)
  46 {
  47         FILE *fp;
  48         struct strbuf sb = STRBUF_INIT;
  49         struct object_id oid;
  50
  51         fp = fopen(path, "r");
  52         if (!fp)
  53                 die("could not open object name list: %s", path);
  54         while (!strbuf_getline(&sb, fp)) {
  55                 const char *p;
  56                 const char *name;
  57
  58                 /*
  59                  * Allow trailing comments, leading whitespace
  60                  * (including before commits), and empty or whitespace
  61                  * only lines.
  62                  */
  63                 name = strchr(sb.buf, '#');
  64                 if (name)
  65                         strbuf_setlen(&sb, name - sb.buf);
  66                 strbuf_trim(&sb);
  67                 if (!sb.len)
  68                         continue;
  69
  70                 if (parse_oid_hex(sb.buf, &oid, &p) || *p != '\0')
  71                         die("invalid object name: %s", sb.buf);
  72                 if (fn && fn(&oid, cbdata))
  73                         continue;
  74                 oidset_insert(set, &oid);
  75         }
  76         if (ferror(fp))
  77                 die_errno("Could not read '%s'", path);
  78         fclose(fp);
  79         strbuf_release(&sb);
  80 }