github.com/dougm/docker@v1.5.0/utils/tmpdir.go (about)

     1  package utils
     2  
     3  import (
     4  	"os"
     5  	"path/filepath"
     6  )
     7  
     8  // TempDir returns the default directory to use for temporary files.
     9  func TempDir(rootDir string) (string, error) {
    10  	var tmpDir string
    11  	if tmpDir = os.Getenv("DOCKER_TMPDIR"); tmpDir == "" {
    12  		tmpDir = filepath.Join(rootDir, "tmp")
    13  	}
    14  	err := os.MkdirAll(tmpDir, 0700)
    15  	return tmpDir, err
    16  }