prio-queue: add 'peek' operation

diff --git a/t/helper/test-reach.c b/t/helper/test-reach.c
index f93ad5084d57547874da8457bcca96922c772015..eb2110399829d3b6cfb0c5a20eec7d279e45d0a9 100644 (file)
--- a/t/helper/test-reach.c
+++ b/t/helper/test-reach.c
@@ -4,12 +4,35 @@
 #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;
 
@@ -19,6 +42,10 @@ int cmd__reach(int ac, const char **av)
                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;
@@ -54,6 +81,16 @@ int cmd__reach(int ac, const char **av)
                                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]);
                }
@@ -64,6 +101,30 @@ int cmd__reach(int ac, const char **av)
                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);
 }