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864e3f9348
These comments were added to enforce using the correct import path for
our packages ("github.com/docker/docker", not "github.com/moby/moby").
However, when working in go module mode (not GOPATH / vendor), they have
no effect, so their impact is limited.
Remove these imports in preparation of migrating our code to become an
actual go module.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
// Package longpath introduces some constants and helper functions for handling
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// long paths in Windows.
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//
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// Long paths are expected to be prepended with "\\?\" and followed by either a
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// drive letter, a UNC server\share, or a volume identifier.
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package longpath
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import (
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"os"
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"runtime"
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"strings"
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)
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// longPathPrefix is the longpath prefix for Windows file paths.
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const longPathPrefix = `\\?\`
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// AddPrefix adds the Windows long path prefix to the path provided if
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// it does not already have it.
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func AddPrefix(path string) string {
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if strings.HasPrefix(path, longPathPrefix) {
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return path
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}
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if strings.HasPrefix(path, `\\`) {
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// This is a UNC path, so we need to add 'UNC' to the path as well.
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return longPathPrefix + `UNC` + path[1:]
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}
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return longPathPrefix + path
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}
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// MkdirTemp is the equivalent of [os.MkdirTemp], except that on Windows
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// the result is in Windows longpath format. On Unix systems it is
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// equivalent to [os.MkdirTemp].
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func MkdirTemp(dir, prefix string) (string, error) {
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tempDir, err := os.MkdirTemp(dir, prefix)
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if err != nil {
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return "", err
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}
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if runtime.GOOS != "windows" {
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return tempDir, nil
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}
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return AddPrefix(tempDir), nil
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}
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