plumbing: format/gitattributes support

Implements gitattributes parsing, matching and attribute extraction.

Signed-off-by: Arran Walker <arran.walker@fiveturns.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/plumbing/format/gitattributes/attributes_test.go b/plumbing/format/gitattributes/attributes_test.go
new file mode 100644
index 0000000..aea70ba
--- /dev/null
+++ b/plumbing/format/gitattributes/attributes_test.go
@@ -0,0 +1,67 @@
+package gitattributes
+
+import (
+	"strings"
+
+	. "gopkg.in/check.v1"
+)
+
+type AttributesSuite struct{}
+
+var _ = Suite(&AttributesSuite{})
+
+func (s *AttributesSuite) TestAttributes_ReadAttributes(c *C) {
+	lines := []string{
+		"[attr]sub -a",
+		"[attr]add a",
+		"* sub a",
+		"* !a foo=bar -b c",
+	}
+
+	mas, err := ReadAttributes(strings.NewReader(strings.Join(lines, "\n")), nil, true)
+	c.Assert(err, IsNil)
+	c.Assert(len(mas), Equals, 4)
+
+	c.Assert(mas[0].Name, Equals, "sub")
+	c.Assert(mas[0].Pattern, IsNil)
+	c.Assert(mas[0].Attributes[0].IsUnset(), Equals, true)
+
+	c.Assert(mas[1].Name, Equals, "add")
+	c.Assert(mas[1].Pattern, IsNil)
+	c.Assert(mas[1].Attributes[0].IsSet(), Equals, true)
+
+	c.Assert(mas[2].Name, Equals, "*")
+	c.Assert(mas[2].Pattern, NotNil)
+	c.Assert(mas[2].Attributes[0].IsSet(), Equals, true)
+
+	c.Assert(mas[3].Name, Equals, "*")
+	c.Assert(mas[3].Pattern, NotNil)
+	c.Assert(mas[3].Attributes[0].IsUnspecified(), Equals, true)
+	c.Assert(mas[3].Attributes[1].IsValueSet(), Equals, true)
+	c.Assert(mas[3].Attributes[1].Value(), Equals, "bar")
+	c.Assert(mas[3].Attributes[2].IsUnset(), Equals, true)
+	c.Assert(mas[3].Attributes[3].IsSet(), Equals, true)
+	c.Assert(mas[3].Attributes[0].String(), Equals, "a: unspecified")
+	c.Assert(mas[3].Attributes[1].String(), Equals, "foo: bar")
+	c.Assert(mas[3].Attributes[2].String(), Equals, "b: unset")
+	c.Assert(mas[3].Attributes[3].String(), Equals, "c: set")
+}
+
+func (s *AttributesSuite) TestAttributes_ReadAttributesDisallowMacro(c *C) {
+	lines := []string{
+		"[attr]sub -a",
+		"* a add",
+	}
+
+	_, err := ReadAttributes(strings.NewReader(strings.Join(lines, "\n")), nil, false)
+	c.Assert(err, Equals, ErrMacroNotAllowed)
+}
+
+func (s *AttributesSuite) TestAttributes_ReadAttributesInvalidName(c *C) {
+	lines := []string{
+		"[attr]foo!bar -a",
+	}
+
+	_, err := ReadAttributes(strings.NewReader(strings.Join(lines, "\n")), nil, true)
+	c.Assert(err, Equals, ErrInvalidAttributeName)
+}