Source file src/pkg/cmd/go/internal/base/path.go

     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	}
    53	

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