workdir.go raw

   1  // SPDX-License-Identifier: Unlicense OR MIT
   2  
   3  package main
   4  
   5  import (
   6  	"fmt"
   7  	"io/ioutil"
   8  	"os"
   9  	"path/filepath"
  10  	"strings"
  11  )
  12  
  13  type WorkDir string
  14  
  15  func (wd WorkDir) Dir(path string) WorkDir {
  16  	dirname := filepath.Join(string(wd), path)
  17  	if err := os.Mkdir(dirname, 0755); err != nil {
  18  		if !os.IsExist(err) {
  19  			fmt.Fprintf(os.Stderr, "failed to create %q: %v\n", dirname, err)
  20  		}
  21  	}
  22  	return WorkDir(dirname)
  23  }
  24  
  25  func (wd WorkDir) Path(path ...string) (fullpath string) {
  26  	return filepath.Join(string(wd), strings.Join(path, "."))
  27  }
  28  
  29  func (wd WorkDir) WriteFile(path string, data []byte) error {
  30  	err := ioutil.WriteFile(path, data, 0644)
  31  	if err != nil {
  32  		return fmt.Errorf("unable to create %v: %w", path, err)
  33  	}
  34  	return nil
  35  }
  36