add Commit#header method

Author: mastahyeti

ext/rugged/rugged_commit.c

@@ -23,6 +23,7 @@
  */
 
 #include "rugged.h"
+#include "git2/commit.h"
 
 extern VALUE rb_mRugged;
 extern VALUE rb_cRuggedObject;
@@ -576,6 +577,20 @@ static VALUE rb_git_commit_header_field(VALUE self, VALUE rb_field) {
 	return rb_result;
 }
 
+static VALUE rb_git_commit_header(VALUE self) {
+	VALUE rb_result;
+	git_commit *commit;
+	const char *raw_header;
+
+	Data_Get_Struct(self, git_commit, commit);
+
+	raw_header = git_commit_raw_header(commit);
+
+	rb_result = rb_enc_str_new(raw_header, strlen(raw_header), rb_utf8_encoding());
+
+	return rb_result;
+}
+
 void Init_rugged_commit(void)
 {
 	rb_cRuggedCommit = rb_define_class_under(rb_mRugged, "Commit", rb_cRuggedObject);
@@ -600,4 +615,5 @@ void Init_rugged_commit(void)
 	rb_define_method(rb_cRuggedCommit, "to_mbox", rb_git_commit_to_mbox, -1);
 
 	rb_define_method(rb_cRuggedCommit, "header_field", rb_git_commit_header_field, 1);
+	rb_define_method(rb_cRuggedCommit, "header", rb_git_commit_header, 0);
 }

test/commit_test.rb

@@ -179,8 +179,21 @@ def test_header_field
     oid = "8496071c1b46c854b31185ea97743be6a8774479"
     obj = @repo.lookup(oid)
 
-    expected_header = "Scott Chacon <[email protected]> 1273360386 -0700"
-    assert_equal expected_header, obj.header_field("author")
+    expected_header_field = "Scott Chacon <[email protected]> 1273360386 -0700"
+    assert_equal expected_header_field, obj.header_field("author")
+  end
+
+  def test_header
+    oid = "8496071c1b46c854b31185ea97743be6a8774479"
+    obj = @repo.lookup(oid)
+
+    expected_header = <<-HEADER
+tree 181037049a54a1eb5fab404658a3a250b44335d7
+author Scott Chacon <[email protected]> 1273360386 -0700
+committer Scott Chacon <[email protected]> 1273360386 -0700
+    HEADER
+
+    assert_equal expected_header, obj.header
   end
 end