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-rw-r--r--t/helper/test-userdiff.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/t/helper/test-userdiff.c b/t/helper/test-userdiff.c
new file mode 100644
index 0000000..a2b56b9
--- /dev/null
+++ b/t/helper/test-userdiff.c
@@ -0,0 +1,46 @@
+#include "test-tool.h"
+#include "cache.h"
+#include "userdiff.h"
+#include "config.h"
+
+static int driver_cb(struct userdiff_driver *driver,
+ enum userdiff_driver_type type, void *priv)
+{
+ enum userdiff_driver_type *want_type = priv;
+ if (type & *want_type && driver->funcname.pattern)
+ puts(driver->name);
+ return 0;
+}
+
+static int cmd__userdiff_config(const char *var, const char *value, void *cb UNUSED)
+{
+ if (userdiff_config(var, value) < 0)
+ return -1;
+ return 0;
+}
+
+int cmd__userdiff(int argc, const char **argv)
+{
+ enum userdiff_driver_type want = 0;
+ if (argc != 2)
+ return 1;
+
+ if (!strcmp(argv[1], "list-drivers"))
+ want = (USERDIFF_DRIVER_TYPE_BUILTIN |
+ USERDIFF_DRIVER_TYPE_CUSTOM);
+ else if (!strcmp(argv[1], "list-builtin-drivers"))
+ want = USERDIFF_DRIVER_TYPE_BUILTIN;
+ else if (!strcmp(argv[1], "list-custom-drivers"))
+ want = USERDIFF_DRIVER_TYPE_CUSTOM;
+ else
+ return error("unknown argument %s", argv[1]);
+
+ if (want & USERDIFF_DRIVER_TYPE_CUSTOM) {
+ setup_git_directory();
+ git_config(cmd__userdiff_config, NULL);
+ }
+
+ for_each_userdiff_driver(driver_cb, &want);
+
+ return 0;
+}