d7a3a090df
From the 1.17 release notes (https://golang.org/doc/go1.17#gofmt): gofmt (and go fmt) now synchronizes //go:build lines with // +build lines. More info about this change can be found at https://golang.org/design/draft-gobuild
56 lines
1.0 KiB
Go
56 lines
1.0 KiB
Go
//go:build windows
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// +build windows
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package tools
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import (
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"os"
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"github.com/avast/retry-go"
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"golang.org/x/sys/windows"
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)
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func underlyingError(err error) error {
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switch err := err.(type) {
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case *os.PathError:
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return err.Err
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case *os.LinkError:
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return err.Err
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case *os.SyscallError:
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return err.Err
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}
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return err
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}
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// isEphemeralError returns true if err may be resolved by waiting.
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func isEphemeralError(err error) bool {
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// TODO: Use this instead for Go >= 1.13
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// return errors.Is(err, windows.ERROR_SHARING_VIOLATION)
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err = underlyingError(err)
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return err == windows.ERROR_SHARING_VIOLATION
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}
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func RobustRename(oldpath, newpath string) error {
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return retry.Do(
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func() error {
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return os.Rename(oldpath, newpath)
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},
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retry.RetryIf(isEphemeralError),
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retry.LastErrorOnly(true),
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)
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}
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func RobustOpen(name string) (*os.File, error) {
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var result *os.File
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return result, retry.Do(
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func() error {
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f, err := os.Open(name)
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result = f
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return err
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},
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retry.RetryIf(isEphemeralError),
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retry.LastErrorOnly(true),
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)
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}
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