github.com/gagliardetto/golang-go@v0.0.0-20201020153340-53909ea70814/cmd/go/not-internal/base/path.go (about)

     1  // Copyright 2017 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 base
     6  
     7  import (
     8  	"os"
     9  	"path/filepath"
    10  	"strings"
    11  )
    12  
    13  func getwd() string {
    14  	wd, err := os.Getwd()
    15  	if err != nil {
    16  		Fatalf("cannot determine current directory: %v", err)
    17  	}
    18  	return wd
    19  }
    20  
    21  var Cwd = getwd()
    22  
    23  // ShortPath returns an absolute or relative name for path, whatever is shorter.
    24  func ShortPath(path string) string {
    25  	if rel, err := filepath.Rel(Cwd, path); err == nil && len(rel) < len(path) {
    26  		return rel
    27  	}
    28  	return path
    29  }
    30  
    31  // RelPaths returns a copy of paths with absolute paths
    32  // made relative to the current directory if they would be shorter.
    33  func RelPaths(paths []string) []string {
    34  	var out []string
    35  	// TODO(rsc): Can this use Cwd from above?
    36  	pwd, _ := os.Getwd()
    37  	for _, p := range paths {
    38  		rel, err := filepath.Rel(pwd, p)
    39  		if err == nil && len(rel) < len(p) {
    40  			p = rel
    41  		}
    42  		out = append(out, p)
    43  	}
    44  	return out
    45  }
    46  
    47  // IsTestFile reports whether the source file is a set of tests and should therefore
    48  // be excluded from coverage analysis.
    49  func IsTestFile(file string) bool {
    50  	// We don't cover tests, only the code they test.
    51  	return strings.HasSuffix(file, "_test.go")
    52  }