test-reach: test get_merge_bases_many
[git/git.git] / 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 "string-list.h"
8 #include "tag.h"
9
10 static void print_sorted_commit_ids(struct commit_list *list)
11 {
12 int i;
13 struct string_list s = STRING_LIST_INIT_DUP;
14
15 while (list) {
16 string_list_append(&s, oid_to_hex(&list->item->object.oid));
17 list = list->next;
18 }
19
20 string_list_sort(&s);
21
22 for (i = 0; i < s.nr; i++)
23 printf("%s\n", s.items[i].string);
24
25 string_list_clear(&s, 0);
26 }
27
28 int cmd__reach(int ac, const char **av)
29 {
30 struct object_id oid_A, oid_B;
31 struct commit *A, *B;
32 struct commit_list *X;
33 struct commit **X_array;
34 int X_nr, X_alloc;
35 struct strbuf buf = STRBUF_INIT;
36 struct repository *r = the_repository;
37
38 setup_git_directory();
39
40 if (ac < 2)
41 exit(1);
42
43 A = B = NULL;
44 X = NULL;
45 X_nr = 0;
46 X_alloc = 16;
47 ALLOC_ARRAY(X_array, X_alloc);
48
49 while (strbuf_getline(&buf, stdin) != EOF) {
50 struct object_id oid;
51 struct object *o;
52 struct commit *c;
53 if (buf.len < 3)
54 continue;
55
56 if (get_oid_committish(buf.buf + 2, &oid))
57 die("failed to resolve %s", buf.buf + 2);
58
59 o = parse_object(r, &oid);
60 o = deref_tag_noverify(o);
61
62 if (!o)
63 die("failed to load commit for input %s resulting in oid %s\n",
64 buf.buf, oid_to_hex(&oid));
65
66 c = object_as_type(r, o, OBJ_COMMIT, 0);
67
68 if (!c)
69 die("failed to load commit for input %s resulting in oid %s\n",
70 buf.buf, oid_to_hex(&oid));
71
72 switch (buf.buf[0]) {
73 case 'A':
74 oidcpy(&oid_A, &oid);
75 A = c;
76 break;
77
78 case 'B':
79 oidcpy(&oid_B, &oid);
80 B = c;
81 break;
82
83 case 'X':
84 commit_list_insert(c, &X);
85 ALLOC_GROW(X_array, X_nr + 1, X_alloc);
86 X_array[X_nr++] = c;
87 break;
88
89 default:
90 die("unexpected start of line: %c", buf.buf[0]);
91 }
92 }
93 strbuf_release(&buf);
94
95 if (!strcmp(av[1], "ref_newer"))
96 printf("%s(A,B):%d\n", av[1], ref_newer(&oid_A, &oid_B));
97 else if (!strcmp(av[1], "in_merge_bases"))
98 printf("%s(A,B):%d\n", av[1], in_merge_bases(A, B));
99 else if (!strcmp(av[1], "is_descendant_of"))
100 printf("%s(A,X):%d\n", av[1], is_descendant_of(A, X));
101 else if (!strcmp(av[1], "get_merge_bases_many")) {
102 struct commit_list *list = get_merge_bases_many(A, X_nr, X_array);
103 printf("%s(A,X):\n", av[1]);
104 print_sorted_commit_ids(list);
105 }
106
107 exit(0);
108 }