t/helper/test-reach.c

   1 #include "test-tool.h"
   2 #include "commit.h"
   3 #include "commit-reach.h"
   4 #include "config.h"
   5 #include "gettext.h"
   6 #include "hex.h"
   7 #include "object-name.h"
   8 #include "parse-options.h"
   9 #include "ref-filter.h"
  10 #include "setup.h"
  11 #include "string-list.h"
  12 #include "tag.h"
  13
  14 static void print_sorted_commit_ids(struct commit_list *list)
  15 {
  16         int i;
  17         struct string_list s = STRING_LIST_INIT_DUP;
  18
  19         while (list) {
  20                 string_list_append(&s, oid_to_hex(&list->item->object.oid));
  21                 list = list->next;
  22         }
  23
  24         string_list_sort(&s);
  25
  26         for (i = 0; i < s.nr; i++)
  27                 printf("%s\n", s.items[i].string);
  28
  29         string_list_clear(&s, 0);
  30 }
  31
  32 int cmd__reach(int ac, const char **av)
  33 {
  34         struct object_id oid_A, oid_B;
  35         struct commit *A, *B;
  36         struct commit_list *X, *Y;
  37         struct object_array X_obj = OBJECT_ARRAY_INIT;
  38         struct commit **X_array, **Y_array;
  39         int X_nr, X_alloc, Y_nr, Y_alloc;
  40         struct strbuf buf = STRBUF_INIT;
  41         struct repository *r = the_repository;
  42
  43         setup_git_directory();
  44
  45         if (ac < 2)
  46                 exit(1);
  47
  48         A = B = NULL;
  49         X = Y = NULL;
  50         X_nr = Y_nr = 0;
  51         X_alloc = Y_alloc = 16;
  52         ALLOC_ARRAY(X_array, X_alloc);
  53         ALLOC_ARRAY(Y_array, Y_alloc);
  54
  55         while (strbuf_getline(&buf, stdin) != EOF) {
  56                 struct object_id oid;
  57                 struct object *orig;
  58                 struct object *peeled;
  59                 struct commit *c;
  60                 if (buf.len < 3)
  61                         continue;
  62
  63                 if (repo_get_oid_committish(the_repository, buf.buf + 2, &oid))
  64                         die("failed to resolve %s", buf.buf + 2);
  65
  66                 orig = parse_object(r, &oid);
  67                 peeled = deref_tag_noverify(orig);
  68
  69                 if (!peeled)
  70                         die("failed to load commit for input %s resulting in oid %s\n",
  71                             buf.buf, oid_to_hex(&oid));
  72
  73                 c = object_as_type(peeled, OBJ_COMMIT, 0);
  74
  75                 if (!c)
  76                         die("failed to load commit for input %s resulting in oid %s\n",
  77                             buf.buf, oid_to_hex(&oid));
  78
  79                 switch (buf.buf[0]) {
  80                         case 'A':
  81                                 oidcpy(&oid_A, &oid);
  82                                 A = c;
  83                                 break;
  84
  85                         case 'B':
  86                                 oidcpy(&oid_B, &oid);
  87                                 B = c;
  88                                 break;
  89
  90                         case 'X':
  91                                 commit_list_insert(c, &X);
  92                                 ALLOC_GROW(X_array, X_nr + 1, X_alloc);
  93                                 X_array[X_nr++] = c;
  94                                 add_object_array(orig, NULL, &X_obj);
  95                                 break;
  96
  97                         case 'Y':
  98                                 commit_list_insert(c, &Y);
  99                                 ALLOC_GROW(Y_array, Y_nr + 1, Y_alloc);
 100                                 Y_array[Y_nr++] = c;
 101                                 break;
 102
 103                         default:
 104                                 die("unexpected start of line: %c", buf.buf[0]);
 105                 }
 106         }
 107         strbuf_release(&buf);
 108
 109         if (!strcmp(av[1], "ref_newer"))
 110                 printf("%s(A,B):%d\n", av[1], ref_newer(&oid_A, &oid_B));
 111         else if (!strcmp(av[1], "in_merge_bases"))
 112                 printf("%s(A,B):%d\n", av[1],
 113                        repo_in_merge_bases(the_repository, A, B));
 114         else if (!strcmp(av[1], "in_merge_bases_many"))
 115                 printf("%s(A,X):%d\n", av[1],
 116                        repo_in_merge_bases_many(the_repository, A, X_nr, X_array));
 117         else if (!strcmp(av[1], "is_descendant_of"))
 118                 printf("%s(A,X):%d\n", av[1], repo_is_descendant_of(r, A, X));
 119         else if (!strcmp(av[1], "get_merge_bases_many")) {
 120                 struct commit_list *list = repo_get_merge_bases_many(the_repository,
 121                                                                      A, X_nr,
 122                                                                      X_array);
 123                 printf("%s(A,X):\n", av[1]);
 124                 print_sorted_commit_ids(list);
 125         } else if (!strcmp(av[1], "reduce_heads")) {
 126                 struct commit_list *list = reduce_heads(X);
 127                 printf("%s(X):\n", av[1]);
 128                 print_sorted_commit_ids(list);
 129         } else if (!strcmp(av[1], "can_all_from_reach")) {
 130                 printf("%s(X,Y):%d\n", av[1], can_all_from_reach(X, Y, 1));
 131         } else if (!strcmp(av[1], "can_all_from_reach_with_flag")) {
 132                 struct commit_list *iter = Y;
 133
 134                 while (iter) {
 135                         iter->item->object.flags |= 2;
 136                         iter = iter->next;
 137                 }
 138
 139                 printf("%s(X,_,_,0,0):%d\n", av[1], can_all_from_reach_with_flag(&X_obj, 2, 4, 0, 0));
 140         } else if (!strcmp(av[1], "commit_contains")) {
 141                 struct ref_filter filter = REF_FILTER_INIT;
 142                 struct contains_cache cache;
 143                 init_contains_cache(&cache);
 144
 145                 if (ac > 2 && !strcmp(av[2], "--tag"))
 146                         filter.with_commit_tag_algo = 1;
 147                 else
 148                         filter.with_commit_tag_algo = 0;
 149
 150                 printf("%s(_,A,X,_):%d\n", av[1], commit_contains(&filter, A, X, &cache));
 151         } else if (!strcmp(av[1], "get_reachable_subset")) {
 152                 const int reachable_flag = 1;
 153                 int i, count = 0;
 154                 struct commit_list *current;
 155                 struct commit_list *list = get_reachable_subset(X_array, X_nr,
 156                                                                 Y_array, Y_nr,
 157                                                                 reachable_flag);
 158                 printf("get_reachable_subset(X,Y)\n");
 159                 for (current = list; current; current = current->next) {
 160                         if (!(list->item->object.flags & reachable_flag))
 161                                 die(_("commit %s is not marked reachable"),
 162                                     oid_to_hex(&list->item->object.oid));
 163                         count++;
 164                 }
 165                 for (i = 0; i < Y_nr; i++) {
 166                         if (Y_array[i]->object.flags & reachable_flag)
 167                                 count--;
 168                 }
 169
 170                 if (count < 0)
 171                         die(_("too many commits marked reachable"));
 172
 173                 print_sorted_commit_ids(list);
 174         }
 175
 176         return 0;
 177 }