t/helper/test-reach.c

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