oidset.c

   1 #include "git-compat-util.h"
   2 #include "oidset.h"
   3 #include "hex.h"
   4 #include "strbuf.h"
   5
   6 void oidset_init(struct oidset *set, size_t initial_size)
   7 {
   8         memset(&set->set, 0, sizeof(set->set));
   9         if (initial_size)
  10                 kh_resize_oid_set(&set->set, initial_size);
  11 }
  12
  13 int oidset_contains(const struct oidset *set, const struct object_id *oid)
  14 {
  15         khiter_t pos = kh_get_oid_set(&set->set, *oid);
  16         return pos != kh_end(&set->set);
  17 }
  18
  19 int oidset_insert(struct oidset *set, const struct object_id *oid)
  20 {
  21         int added;
  22         kh_put_oid_set(&set->set, *oid, &added);
  23         return !added;
  24 }
  25
  26 int oidset_remove(struct oidset *set, const struct object_id *oid)
  27 {
  28         khiter_t pos = kh_get_oid_set(&set->set, *oid);
  29         if (pos == kh_end(&set->set))
  30                 return 0;
  31         kh_del_oid_set(&set->set, pos);
  32         return 1;
  33 }
  34
  35 void oidset_clear(struct oidset *set)
  36 {
  37         kh_release_oid_set(&set->set);
  38         oidset_init(set, 0);
  39 }
  40
  41 void oidset_parse_file(struct oidset *set, const char *path)
  42 {
  43         oidset_parse_file_carefully(set, path, NULL, NULL);
  44 }
  45
  46 void oidset_parse_file_carefully(struct oidset *set, const char *path,
  47                                  oidset_parse_tweak_fn fn, void *cbdata)
  48 {
  49         FILE *fp;
  50         struct strbuf sb = STRBUF_INIT;
  51         struct object_id oid;
  52
  53         fp = fopen(path, "r");
  54         if (!fp)
  55                 die("could not open object name list: %s", path);
  56         while (!strbuf_getline(&sb, fp)) {
  57                 const char *p;
  58                 const char *name;
  59
  60                 /*
  61                  * Allow trailing comments, leading whitespace
  62                  * (including before commits), and empty or whitespace
  63                  * only lines.
  64                  */
  65                 name = strchr(sb.buf, '#');
  66                 if (name)
  67                         strbuf_setlen(&sb, name - sb.buf);
  68                 strbuf_trim(&sb);
  69                 if (!sb.len)
  70                         continue;
  71
  72                 if (parse_oid_hex(sb.buf, &oid, &p) || *p != '\0')
  73                         die("invalid object name: %s", sb.buf);
  74                 if (fn && fn(&oid, cbdata))
  75                         continue;
  76                 oidset_insert(set, &oid);
  77         }
  78         if (ferror(fp))
  79                 die_errno("Could not read '%s'", path);
  80         fclose(fp);
  81         strbuf_release(&sb);
  82 }