go-libsass compilation example

sass.go

package main

import (
	"errors"
	"fmt"
	"os"
	"path"
	"path/filepath"

	libsass "github.com/wellington/go-libsass"
)

func main() {
	dir, _ := os.Getwd()

	sassFile := path.Join(dir, "sass", "app.scss")
	outFile := path.Join(dir, "output", "app.css")

	if err := compileFile(sassFile, outFile); err != nil {
		panic(err)
	}

	fmt.Printf("Done: %s\n", outFile)
}

func compileFile(sassFile string, outFile string) error {
	if sassFile == "" || outFile == "" {
		panic(errors.New("Incorrect parameters"))
	}

	ctx := libsass.Context{
		BuildDir:     filepath.Dir(outFile),
		MainFile:     sassFile,
		IncludePaths: []string{filepath.Dir(sassFile)},
	}

	ctx.Imports.Init()

	dir := filepath.Dir(outFile)
	if err := os.MkdirAll(dir, 0755); err != nil {
		return fmt.Errorf("Failed to create directory: %s", dir)
	}

	out, err := os.Create(outFile)
	if err != nil {
		return fmt.Errorf("Failed to create file: %s", outFile)
	}
	defer out.Close()

	if err := ctx.FileCompile(sassFile, out); err != nil {
		return err
	}

	return nil
}