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, 33 insertions, 0 deletions

diff --git a/formats/config/option_test.go b/formats/config/option_test.go
new file mode 100644
index 0000000..8588de1
--- /dev/null
+++ b/formats/config/option_test.go
@@ -0,0 +1,33 @@
+package config
+
+import (
+	. "gopkg.in/check.v1"
+)
+
+type OptionSuite struct{}
+
+var _ = Suite(&OptionSuite{})
+
+func (s *OptionSuite) TestOptions_GetAll(c *C) {
+	o := Options{
+		&Option{"k", "v"},
+		&Option{"ok", "v1"},
+		&Option{"K", "v2"},
+	}
+	c.Assert(o.GetAll("k"), DeepEquals, []string{"v", "v2"})
+	c.Assert(o.GetAll("K"), DeepEquals, []string{"v", "v2"})
+	c.Assert(o.GetAll("ok"), DeepEquals, []string{"v1"})
+	c.Assert(o.GetAll("unexistant"), DeepEquals, []string{})
+
+	o = Options{}
+	c.Assert(o.GetAll("k"), DeepEquals, []string{})
+}
+
+func (s *OptionSuite) TestOption_IsKey(c *C) {
+	c.Assert((&Option{Key: "key"}).IsKey("key"), Equals, true)
+	c.Assert((&Option{Key: "key"}).IsKey("KEY"), Equals, true)
+	c.Assert((&Option{Key: "KEY"}).IsKey("key"), Equals, true)
+	c.Assert((&Option{Key: "key"}).IsKey("other"), Equals, false)
+	c.Assert((&Option{Key: "key"}).IsKey(""), Equals, false)
+	c.Assert((&Option{Key: ""}).IsKey("key"), Equals, false)
+}