[PATCH 1/6] Refactor type_from_string() to avoid die()ing in case of errors

[Johannes Schindelin <johannes.schindelin@xxxxxx>]

In the next commits, we will enhance the fsck_tag() function to check
tag objects more thoroughly. To this end, we need a function to verify
that a given string is a valid object type, but that does not die() in
the negative case.

Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
 object.c | 13 ++++++++++++-
 object.h |  1 +
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/object.c b/object.c
index a16b9f9..5eee592 100644
--- a/object.c
+++ b/object.c
@@ -33,13 +33,24 @@ const char *typename(unsigned int type)
 	return object_type_strings[type];
 }
 
-int type_from_string(const char *str)
+int type_from_string_gently(const char *str)
 {
 	int i;
 
 	for (i = 1; i < ARRAY_SIZE(object_type_strings); i++)
 		if (!strcmp(str, object_type_strings[i]))
 			return i;
+
+	return -1;
+}
+
+int type_from_string(const char *str)
+{
+	int i = type_from_string_gently(str);
+
+	if (i >= 0)
+		return i;
+
 	die("invalid object type \"%s\"", str);
 }
 
diff --git a/object.h b/object.h
index 5e8d8ee..5c5d22f 100644
--- a/object.h
+++ b/object.h
@@ -54,6 +54,7 @@ struct object {
 
 extern const char *typename(unsigned int type);
 extern int type_from_string(const char *str);
+extern int type_from_string_gently(const char *str);
 
 /*
  * Return the current number of buckets in the object hashmap.
-- 
2.0.0.rc3.9669.g840d1f9

--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html