Add functions to build Amber and GCSS (taken from original project)

Signed-off-by: Izuru Yakumo <yakumo.izuru@chaotic.ninja>

git-svn-id: file:///srv/svn/repo/aya/trunk@60 cec141ff-132a-4243-88a5-ce187bd62f94

cmd/aya/main.go

@@ -16,6 +16,8 @@ import (
 	"gopkg.in/yaml.v2"
 	"marisa.chaotic.ninja/aya"
 	log "github.com/sirupsen/logrus"
+	"github.com/eknkc/amber"
+	"github.com/yosssi/gcss"
 )
 
 const (
@@ -221,6 +223,64 @@ func buildHTML(path string, w io.Writer, vars Vars) error {
 	return tmpl.Execute(w, vars)
 }
 
+// Renders .amber file into .html
+func buildAmber(path string, w io.Writer, vars Vars) error {
+	v, body, err := getVars(path, vars)
+	if err != nil {
+		return err
+	}
+	a := amber.New()
+	if err := a.Parse(body); err != nil {
+		fmt.Println(body)
+		return err
+	}
+
+	t, err := a.Compile()
+	if err != nil {
+		return err
+	}
+
+	htmlBuf := &bytes.Buffer{}
+	if err := t.Execute(htmlBuf, v); err != nil {
+		return err
+	}
+
+	if body, err = render(string(htmlBuf.Bytes()), v); err != nil {
+		return err
+	}
+
+	if w == nil {
+		f, err := os.Create(filepath.Join(PUBDIR, renameExt(path, ".amber", ".html")))
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+		w = f
+	}
+	_, err = io.WriteString(w, body)
+	return err
+}
+// Compiles .gcss into .css
+func buildGCSS(path string, w io.Writer) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	if w == nil {
+		s := strings.TrimSuffix(path, ".gcss") + ".css"
+		css, err := os.Create(filepath.Join(PUBDIR, s))
+		if err != nil {
+			return err
+		}
+		defer css.Close()
+		w = css
+	}
+	_, err = gcss.Compile(w, f)
+	return err
+}
+
 // Copies file as is from path to writer
 func buildRaw(path string, w io.Writer) error {
 	in, err := os.Open(path)
@@ -246,6 +306,10 @@ func build(path string, w io.Writer, vars Vars) error {
 		return buildMarkdown(path, w, vars)
 	} else if ext == ".html" || ext == ".xml" {
 		return buildHTML(path, w, vars)
+	} else if ext == ".amber" {
+		return buildAmber(path, w, vars)
+	} else if ext == ".gcss" {
+		return buildGCSS(path, w)
 	} else {
 		return buildRaw(path, w)
 	}