github.com/u-root/u-root@v7.0.1-0.20200915234505-ad7babab0a8e+incompatible/cmds/core/elvish/util/search.go (about)

     1  package util
     2  
     3  import (
     4  	"os"
     5  	"path/filepath"
     6  	"strings"
     7  )
     8  
     9  // DontSearch determines whether the path to an external command should be
    10  // taken literally and not searched.
    11  func DontSearch(exe string) bool {
    12  	return exe == ".." || strings.ContainsRune(exe, filepath.Separator)
    13  }
    14  
    15  // IsExecutable determines whether path refers to an executable file.
    16  func IsExecutable(path string) bool {
    17  	fi, err := os.Stat(path)
    18  	if err != nil {
    19  		return false
    20  	}
    21  	fm := fi.Mode()
    22  	return !fm.IsDir() && (fm&0111 != 0)
    23  }