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| author | Ondřej Surý <ondrej@sury.org> | 2011-09-13 13:11:55 +0200 |
|---|---|---|
| committer | Ondřej Surý <ondrej@sury.org> | 2011-09-13 13:11:55 +0200 |
| commit | 80f18fc933cf3f3e829c5455a1023d69f7b86e52 (patch) | |
| tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /src/pkg/exec/lp_plan9.go | |
| parent | 28592ee1ea1f5cdffcf85472f9de0285d928cf12 (diff) | |
| download | golang-80f18fc933cf3f3e829c5455a1023d69f7b86e52.tar.gz | |
Imported Upstream version 60
Diffstat (limited to 'src/pkg/exec/lp_plan9.go')
| -rw-r--r-- | src/pkg/exec/lp_plan9.go | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/src/pkg/exec/lp_plan9.go b/src/pkg/exec/lp_plan9.go deleted file mode 100644 index e4751a4df..000000000 --- a/src/pkg/exec/lp_plan9.go +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package exec - -import ( - "os" - "strings" -) - -// ErrNotFound is the error resulting if a path search failed to find an executable file. -var ErrNotFound = os.NewError("executable file not found in $path") - -func findExecutable(file string) os.Error { - d, err := os.Stat(file) - if err != nil { - return err - } - if d.IsRegular() && d.Permission()&0111 != 0 { - return nil - } - return os.EPERM -} - -// LookPath searches for an executable binary named file -// in the directories named by the path environment variable. -// If file begins with "/", "#", "./", or "../", it is tried -// directly and the path is not consulted. -func LookPath(file string) (string, os.Error) { - // skip the path lookup for these prefixes - skip := []string{"/", "#", "./", "../"} - - for _, p := range skip { - if strings.HasPrefix(file, p) { - err := findExecutable(file) - if err == nil { - return file, nil - } - return "", &Error{file, err} - } - } - - path := os.Getenv("path") - for _, dir := range strings.Split(path, "\000") { - if err := findExecutable(dir + "/" + file); err == nil { - return dir + "/" + file, nil - } - } - return "", &Error{file, ErrNotFound} -} |
