// Compile scss file to css
func (c *Compiler) CompileFile(path string) (string, error) {
ctx, err := C._sass_new_file_context()
if err != nil {
errStr := "failed to alloc file ctx: " + err.Error()
return "", errors.New(errStr)
}
defer C._sass_free_file_context(ctx)
if err := c.fillOptions((*C.sass_options_t)(&ctx.options)); err != nil {
return "", err
}
ctx.input_path = C.CString(path)
C._sass_compile_file(ctx)
if ctx.error_status != 0 {
errStr := fmt.Sprintf("failed to compile file: %d: %s",
ctx.error_status, C.GoString(ctx.error_message))
return "", errors.New(errStr)
}
return C.GoString(ctx.output_string), nil
}
// Compile Sass files in in srcPath to CSS in outPath
func (c *Compiler) CompileFolder(srcPath, outPath string) error {
ctx, err := C._sass_new_file_context()
if err != nil {
errStr := "failed to alloc file ctx: " + err.Error()
return errors.New(errStr)
}
defer C._sass_free_file_context(ctx)
if err := c.fillOptions((*C.sass_options_t)(&ctx.options)); err != nil {
return err
}
walkF := func(p string, f os.FileInfo, e error) error {
if f.IsDir() {
return nil
}
if !strings.HasSuffix(p, ".scss") {
return nil
}
base := filepath.Base(p)
if strings.HasPrefix(base, "_") {
// skip "_*.scss". they will be imported by other.
return nil
}
dir := filepath.Dir(p)
outDir := strings.Replace(filepath.ToSlash(dir), filepath.ToSlash(srcPath), filepath.ToSlash(outPath), 1)
if err := os.MkdirAll(outDir, 0770); err != nil {
return err
}
ctx.input_path = C.CString(p)
C._sass_compile_file(ctx)
if ctx.error_status != 0 {
errStr := fmt.Sprintf("failed to compile file: %d: %s",
ctx.error_status, C.GoString(ctx.error_message))
return errors.New(errStr)
}
base = strings.TrimRight(base, ".scss") + ".css"
outPath := filepath.Join(outDir, base)
wp, err := os.Create(outPath)
if err != nil {
return err
}
defer wp.Close()
n, err := wp.Write([]byte(C.GoString(ctx.output_string)))
if err != nil {
return err
}
if n == 0 {
return errors.New("nothing written to " + p)
}
return nil
}
return filepath.Walk(srcPath, walkF)
}