t/helper/test-reach.c

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