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-rw-r--r--t/helper/test-reach.c130
-rw-r--r--t/helper/test-tool.c1
-rw-r--r--t/helper/test-tool.h1
3 files changed, 132 insertions, 0 deletions
diff --git a/t/helper/test-reach.c b/t/helper/test-reach.c
new file mode 100644
index 0000000000..eb21103998
--- /dev/null
+++ b/t/helper/test-reach.c
@@ -0,0 +1,130 @@
+#include "test-tool.h"
+#include "cache.h"
+#include "commit.h"
+#include "commit-reach.h"
+#include "config.h"
+#include "parse-options.h"
+#include "ref-filter.h"
+#include "string-list.h"
+#include "tag.h"
+
+static void print_sorted_commit_ids(struct commit_list *list)
+{
+ int i;
+ struct string_list s = STRING_LIST_INIT_DUP;
+
+ while (list) {
+ string_list_append(&s, oid_to_hex(&list->item->object.oid));
+ list = list->next;
+ }
+
+ string_list_sort(&s);
+
+ for (i = 0; i < s.nr; i++)
+ printf("%s\n", s.items[i].string);
+
+ string_list_clear(&s, 0);
+}
+
+int cmd__reach(int ac, const char **av)
+{
+ struct object_id oid_A, oid_B;
+ struct commit *A, *B;
+ struct commit_list *X, *Y;
+ struct commit **X_array;
+ int X_nr, X_alloc;
+ struct strbuf buf = STRBUF_INIT;
+ struct repository *r = the_repository;
+
+ setup_git_directory();
+
+ if (ac < 2)
+ exit(1);
+
+ A = B = NULL;
+ X = Y = NULL;
+ X_nr = 0;
+ X_alloc = 16;
+ ALLOC_ARRAY(X_array, X_alloc);
+
+ while (strbuf_getline(&buf, stdin) != EOF) {
+ struct object_id oid;
+ struct object *o;
+ struct commit *c;
+ if (buf.len < 3)
+ continue;
+
+ if (get_oid_committish(buf.buf + 2, &oid))
+ die("failed to resolve %s", buf.buf + 2);
+
+ o = parse_object(r, &oid);
+ o = deref_tag_noverify(o);
+
+ if (!o)
+ die("failed to load commit for input %s resulting in oid %s\n",
+ buf.buf, oid_to_hex(&oid));
+
+ c = object_as_type(r, o, OBJ_COMMIT, 0);
+
+ if (!c)
+ die("failed to load commit for input %s resulting in oid %s\n",
+ buf.buf, oid_to_hex(&oid));
+
+ switch (buf.buf[0]) {
+ case 'A':
+ oidcpy(&oid_A, &oid);
+ A = c;
+ break;
+
+ case 'B':
+ oidcpy(&oid_B, &oid);
+ B = c;
+ break;
+
+ case 'X':
+ commit_list_insert(c, &X);
+ ALLOC_GROW(X_array, X_nr + 1, X_alloc);
+ X_array[X_nr++] = c;
+ break;
+
+ case 'Y':
+ commit_list_insert(c, &Y);
+ break;
+
+ default:
+ die("unexpected start of line: %c", buf.buf[0]);
+ }
+ }
+ strbuf_release(&buf);
+
+ if (!strcmp(av[1], "ref_newer"))
+ printf("%s(A,B):%d\n", av[1], ref_newer(&oid_A, &oid_B));
+ else if (!strcmp(av[1], "in_merge_bases"))
+ printf("%s(A,B):%d\n", av[1], in_merge_bases(A, B));
+ else if (!strcmp(av[1], "is_descendant_of"))
+ printf("%s(A,X):%d\n", av[1], is_descendant_of(A, X));
+ else if (!strcmp(av[1], "get_merge_bases_many")) {
+ struct commit_list *list = get_merge_bases_many(A, X_nr, X_array);
+ printf("%s(A,X):\n", av[1]);
+ print_sorted_commit_ids(list);
+ } else if (!strcmp(av[1], "reduce_heads")) {
+ struct commit_list *list = reduce_heads(X);
+ printf("%s(X):\n", av[1]);
+ print_sorted_commit_ids(list);
+ } else if (!strcmp(av[1], "can_all_from_reach")) {
+ printf("%s(X,Y):%d\n", av[1], can_all_from_reach(X, Y, 1));
+ } else if (!strcmp(av[1], "commit_contains")) {
+ struct ref_filter filter;
+ struct contains_cache cache;
+ init_contains_cache(&cache);
+
+ if (ac > 2 && !strcmp(av[2], "--tag"))
+ filter.with_commit_tag_algo = 1;
+ else
+ filter.with_commit_tag_algo = 0;
+
+ printf("%s(_,A,X,_):%d\n", av[1], commit_contains(&filter, A, X, &cache));
+ }
+
+ exit(0);
+}
diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c
index 3276701710..bef50c4dcc 100644
--- a/t/helper/test-tool.c
+++ b/t/helper/test-tool.c
@@ -27,6 +27,7 @@ static struct test_cmd cmds[] = {
{ "online-cpus", cmd__online_cpus },
{ "path-utils", cmd__path_utils },
{ "prio-queue", cmd__prio_queue },
+ { "reach", cmd__reach },
{ "read-cache", cmd__read_cache },
{ "read-midx", cmd__read_midx },
{ "ref-store", cmd__ref_store },
diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index 710fb1b286..321982e4bc 100644
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -23,6 +23,7 @@ int cmd__mktemp(int argc, const char **argv);
int cmd__online_cpus(int argc, const char **argv);
int cmd__path_utils(int argc, const char **argv);
int cmd__prio_queue(int argc, const char **argv);
+int cmd__reach(int argc, const char **argv);
int cmd__read_cache(int argc, const char **argv);
int cmd__read_midx(int argc, const char **argv);
int cmd__ref_store(int argc, const char **argv);