94 lines
1.8 KiB
Go
94 lines
1.8 KiB
Go
// Copyright (C) 2015 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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// +build windows
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package osutil
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import (
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"os"
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"path/filepath"
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"sort"
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"strings"
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)
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// Glob implements filepath.Glob, but works with Windows long path prefixes.
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// Deals with https://github.com/golang/go/issues/10577
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func Glob(pattern string) (matches []string, err error) {
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if !hasMeta(pattern) {
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if _, err = os.Lstat(pattern); err != nil {
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return nil, nil
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}
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return []string{pattern}, nil
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}
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dir, file := filepath.Split(pattern)
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switch dir {
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case "":
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dir = "."
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case string(filepath.Separator):
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// nothing
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default:
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dir = dir[0 : len(dir)-1] // chop off trailing separator
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}
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if !hasMeta(dir) {
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return glob(dir, file, nil)
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}
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var m []string
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m, err = Glob(dir)
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if err != nil {
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return
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}
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for _, d := range m {
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matches, err = glob(d, file, matches)
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if err != nil {
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return
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}
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}
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return
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}
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func hasMeta(path string) bool {
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// Strip off Windows long path prefix if it exists.
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if strings.HasPrefix(path, "\\\\?\\") {
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path = path[4:]
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}
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// TODO(niemeyer): Should other magic characters be added here?
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return strings.IndexAny(path, "*?[") >= 0
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}
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func glob(dir, pattern string, matches []string) (m []string, e error) {
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m = matches
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fi, err := os.Stat(dir)
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if err != nil {
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return
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}
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if !fi.IsDir() {
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return
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}
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d, err := os.Open(dir)
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if err != nil {
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return
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}
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defer d.Close()
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names, _ := d.Readdirnames(-1)
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sort.Strings(names)
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for _, n := range names {
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matched, err := filepath.Match(pattern, n)
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if err != nil {
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return m, err
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}
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if matched {
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m = append(m, filepath.Join(dir, n))
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}
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}
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return
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}
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