wehub-resource-sync
87 lines
2.5 KiB
Go
87 lines
2.5 KiB
Go
// Copyright 2021 Dolthub, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build windows
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// +build windows
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package file
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import (
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"os"
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"syscall"
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"time"
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"golang.org/x/sys/windows"
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)
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// Rename functions exactly like os.Rename, except that it retries upon failure on Windows. This "fixes" some errors
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// that appear on Windows.
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func Rename(oldpath, newpath string) error {
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err := os.Rename(oldpath, newpath)
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if isAccessError(err) {
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for waitTime := time.Duration(1); isAccessError(err) && waitTime <= 10000; waitTime *= 10 {
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time.Sleep(waitTime * time.Millisecond)
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err = os.Rename(oldpath, newpath)
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}
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}
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return err
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}
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// Remove functions exactly like os.Remove, except that it retries upon failure on Windows. This "fixes" some errors
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// that appear on Windows.
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func Remove(name string) error {
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err := os.Remove(name)
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if isAccessError(err) {
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for waitTime := time.Duration(1); isAccessError(err) && waitTime <= 10000; waitTime *= 10 {
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time.Sleep(waitTime * time.Millisecond)
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err = os.Remove(name)
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}
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}
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return err
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}
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// RemoveAll functions exactly like os.RemoveAll, except that it retries upon failure on Windows. This "fixes" some errors
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// that appear on Windows.
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func RemoveAll(path string) error {
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err := os.RemoveAll(path)
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if isAccessError(err) {
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for waitTime := time.Duration(1); isAccessError(err) && waitTime <= 10000; waitTime *= 10 {
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time.Sleep(waitTime * time.Millisecond)
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err = os.RemoveAll(path)
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}
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}
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return err
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}
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func isAccessError(err error) bool {
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switch err := err.(type) {
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case *os.LinkError:
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sysErr, ok := err.Err.(syscall.Errno)
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if ok && (sysErr == windows.ERROR_ACCESS_DENIED || sysErr == windows.ERROR_SHARING_VIOLATION) {
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return true
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}
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case *os.PathError:
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sysErr, ok := err.Err.(syscall.Errno)
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if ok && (sysErr == windows.ERROR_ACCESS_DENIED || sysErr == windows.ERROR_SHARING_VIOLATION) {
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return true
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}
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case *os.SyscallError:
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sysErr, ok := err.Err.(syscall.Errno)
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if ok && (sysErr == windows.ERROR_ACCESS_DENIED || sysErr == windows.ERROR_SHARING_VIOLATION) {
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return true
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}
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}
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return false
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}
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