formats/config: Added encoder/decoder for git config files. (#97)

* WIP: Add config format parser.

* add decoder based on gcfg.

Portions of code taken from:
https://github.com/go-gcfg/gcfg/blob/5b9f94ee80b2331c3982477bd84be8edd857df33/read.go

* add git config encoder and config methods.

* use format/config in storage/filesystem for read

* use format/config in storage/filesystem to write

* formats/config: improve docs.

* formats/config: improve tests.

* formats/config: use our fork of gcfg; improve api.

* formats/config: improve api.

* storage/filesystem: fix gofmt

* formats/config: use NoSubsection constant.

* formats/config: add doc.go

* formats/config: requested sytle changes.

* formats/config: do not use *_test packages.

1 files changed, 71 insertions, 0 deletions

diff --git a/formats/config/section_test.go b/formats/config/section_test.go
new file mode 100644
index 0000000..cfd9f3f
--- /dev/null
+++ b/formats/config/section_test.go
@@ -0,0 +1,71 @@
+package config
+
+import (
+	. "gopkg.in/check.v1"
+)
+
+type SectionSuite struct{}
+
+var _ = Suite(&SectionSuite{})
+
+func (s *SectionSuite) TestSection_Option(c *C) {
+	sect := &Section{
+		Options: []*Option{
+			{Key: "key1", Value: "value1"},
+			{Key: "key2", Value: "value2"},
+			{Key: "key1", Value: "value3"},
+		},
+	}
+	c.Assert(sect.Option("otherkey"), Equals, "")
+	c.Assert(sect.Option("key2"), Equals, "value2")
+	c.Assert(sect.Option("key1"), Equals, "value3")
+}
+
+func (s *SectionSuite) TestSubsection_Option(c *C) {
+	sect := &Subsection{
+		Options: []*Option{
+			{Key: "key1", Value: "value1"},
+			{Key: "key2", Value: "value2"},
+			{Key: "key1", Value: "value3"},
+		},
+	}
+	c.Assert(sect.Option("otherkey"), Equals, "")
+	c.Assert(sect.Option("key2"), Equals, "value2")
+	c.Assert(sect.Option("key1"), Equals, "value3")
+}
+
+func (s *SectionSuite) TestSection_RemoveOption(c *C) {
+	sect := &Section{
+		Options: []*Option{
+			{Key: "key1", Value: "value1"},
+			{Key: "key2", Value: "value2"},
+			{Key: "key1", Value: "value3"},
+		},
+	}
+	c.Assert(sect.RemoveOption("otherkey"), DeepEquals, sect)
+
+	expected := &Section{
+		Options: []*Option{
+			{Key: "key2", Value: "value2"},
+		},
+	}
+	c.Assert(sect.RemoveOption("key1"), DeepEquals, expected)
+}
+
+func (s *SectionSuite) TestSubsection_RemoveOption(c *C) {
+	sect := &Subsection{
+		Options: []*Option{
+			{Key: "key1", Value: "value1"},
+			{Key: "key2", Value: "value2"},
+			{Key: "key1", Value: "value3"},
+		},
+	}
+	c.Assert(sect.RemoveOption("otherkey"), DeepEquals, sect)
+
+	expected := &Subsection{
+		Options: []*Option{
+			{Key: "key2", Value: "value2"},
+		},
+	}
+	c.Assert(sect.RemoveOption("key1"), DeepEquals, expected)
+}