Source file src/cmd/go/internal/cfg/lookpath.go

Documentation: cmd/go/internal/cfg

     1  // Copyright 2023 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package cfg
     6  
     7  import (
     8  	"cmd/go/internal/par"
     9  	"os/exec"
    10  )
    11  
    12  var lookPathCache par.ErrCache[string, string]
    13  
    14  // LookPath wraps exec.LookPath and caches the result
    15  // which can be called by multiple Goroutines at the same time.
    16  func LookPath(file string) (path string, err error) {
    17  	return lookPathCache.Do(file,
    18  		func() (string, error) {
    19  			return exec.LookPath(file)
    20  		})
    21  }
    22  

View as plain text