This new helper is very similar to "test-hashmap.c" and will help
test how `struct oidmap` from oidmap.{c,h} can be used.
Helped-by: SZEDER Gábor <szeder.dev@xxxxxxxxx>
Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
---
Makefile | 1 +
t/helper/test-oidmap.c | 134 +++++++++++++++++++++++++++++++++++++++++
t/helper/test-tool.c | 1 +
t/helper/test-tool.h | 1 +
4 files changed, 137 insertions(+)
create mode 100644 t/helper/test-oidmap.c
diff --git a/Makefile b/Makefile
index 8a7e235352..5efc7700ed 100644
--- a/Makefile
+++ b/Makefile
@@ -727,6 +727,7 @@ TEST_BUILTINS_OBJS += test-lazy-init-name-hash.o
TEST_BUILTINS_OBJS += test-match-trees.o
TEST_BUILTINS_OBJS += test-mergesort.o
TEST_BUILTINS_OBJS += test-mktemp.o
+TEST_BUILTINS_OBJS += test-oidmap.o
TEST_BUILTINS_OBJS += test-online-cpus.o
TEST_BUILTINS_OBJS += test-parse-options.o
TEST_BUILTINS_OBJS += test-path-utils.o
diff --git a/t/helper/test-oidmap.c b/t/helper/test-oidmap.c
new file mode 100644
index 0000000000..60e92096a1
--- /dev/null
+++ b/t/helper/test-oidmap.c
@@ -0,0 +1,134 @@
+#include "test-tool.h"
+#include "cache.h"
+#include "oidmap.h"
+#include "strbuf.h"
+
+/* key is an oid and value is a name (could be a refname for example) */
+struct test_entry {
+ struct oidmap_entry entry;
+ char name[FLEX_ARRAY];
+};
+
+#define DELIM " \t\r\n"
+
+/*
+ * Read stdin line by line and print result of commands to stdout:
+ *
+ * hash oidkey -> sha1hash(oidkey)
+ * put oidkey namevalue -> NULL / old namevalue
+ * get oidkey -> NULL / namevalue
+ * remove oidkey -> NULL / old namevalue
+ * iterate -> oidkey1 namevalue1\noidkey2 namevalue2\n...
+ *
+ */
+int cmd__oidmap(int argc, const char **argv)
+{
+ struct strbuf line = STRBUF_INIT;
+ struct oidmap map = OIDMAP_INIT;
+
+ setup_git_directory();
+
+ /* init oidmap */
+ oidmap_init(&map, 0);
+
+ /* process commands from stdin */
+ while (strbuf_getline(&line, stdin) != EOF) {
+ char *cmd, *p1 = NULL, *p2 = NULL;
+ struct test_entry *entry;
+ struct object_id oid;
+
+ /* break line into command and up to two parameters */
+ cmd = strtok(line.buf, DELIM);
+ /* ignore empty lines */
+ if (!cmd || *cmd == '#')
+ continue;
+
+ p1 = strtok(NULL, DELIM);
+ if (p1)
+ p2 = strtok(NULL, DELIM);
+
+ if (!strcmp("hash", cmd) && p1) {
+
+ /* print hash of oid */
+ if (!get_oid(p1, &oid))
+ printf("%x\n", ntohl(sha1hash(oid.hash)));
+ else
+ printf("Unknown oid: %s\n", p1);
+
+ } else if (!strcmp("add", cmd) && p1 && p2) {
+
+ if (get_oid(p1, &oid)) {
+ printf("Unknown oid: %s\n", p1);
+ continue;
+ }
+
+ /* create entry with oidkey from p1, value = p2 */
+ FLEX_ALLOC_STR(entry, name, p2);
+ oidcpy(&entry->entry.oid, &oid);
+
+ /* add to oidmap */
+ oidmap_put(&map, entry);
+
+ } else if (!strcmp("put", cmd) && p1 && p2) {
+
+ if (get_oid(p1, &oid)) {
+ printf("Unknown oid: %s\n", p1);
+ continue;
+ }
+
+ /* create entry with oid_key = p1, name_value = p2 */
+ FLEX_ALLOC_STR(entry, name, p2);
+ oidcpy(&entry->entry.oid, &oid);
+
+ /* add / replace entry */
+ entry = oidmap_put(&map, entry);
+
+ /* print and free replaced entry, if any */
+ puts(entry ? entry->name : "NULL");
+ free(entry);
+
+ } else if (!strcmp("get", cmd) && p1) {
+
+ if (get_oid(p1, &oid)) {
+ printf("Unknown oid: %s\n", p1);
+ continue;
+ }
+
+ /* lookup entry in oidmap */
+ entry = oidmap_get(&map, &oid);
+
+ /* print result */
+ puts(entry ? entry->name : "NULL");
+
+ } else if (!strcmp("remove", cmd) && p1) {
+
+ if (get_oid(p1, &oid)) {
+ printf("Unknown oid: %s\n", p1);
+ continue;
+ }
+
+ /* remove entry from oidmap */
+ entry = oidmap_remove(&map, &oid);
+
+ /* print result and free entry*/
+ puts(entry ? entry->name : "NULL");
+ free(entry);
+
+ } else if (!strcmp("iterate", cmd)) {
+
+ struct oidmap_iter iter;
+ oidmap_iter_init(&map, &iter);
+ while ((entry = oidmap_iter_next(&iter)))
+ printf("%s %s\n", oid_to_hex(&entry->entry.oid), entry->name);
+
+ } else {
+
+ printf("Unknown command %s\n", cmd);
+
+ }
+ }
+
+ strbuf_release(&line);
+ oidmap_free(&map, 1);
+ return 0;
+}
diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c
index 087a8c0cc9..1eac25233f 100644
--- a/t/helper/test-tool.c
+++ b/t/helper/test-tool.c
@@ -35,6 +35,7 @@ static struct test_cmd cmds[] = {
{ "match-trees", cmd__match_trees },
{ "mergesort", cmd__mergesort },
{ "mktemp", cmd__mktemp },
+ { "oidmap", cmd__oidmap },
{ "online-cpus", cmd__online_cpus },
{ "parse-options", cmd__parse_options },
{ "path-utils", cmd__path_utils },
diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index 7e703f3038..c7a46dc320 100644
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -25,6 +25,7 @@ int cmd__lazy_init_name_hash(int argc, const char **argv);
int cmd__match_trees(int argc, const char **argv);
int cmd__mergesort(int argc, const char **argv);
int cmd__mktemp(int argc, const char **argv);
+int cmd__oidmap(int argc, const char **argv);
int cmd__online_cpus(int argc, const char **argv);
int cmd__parse_options(int argc, const char **argv);
int cmd__path_utils(int argc, const char **argv);
--
2.22.0.6.gde8b105b43
