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tailscale/tailfs/tailfsimpl/shared/stat.go

74 lines
1.9 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package shared
import (
"context"
"io/fs"
"os"
"time"
"github.com/tailscale/xnet/webdav"
)
// StaticFileInfo implements a static fs.FileInfo
type StaticFileInfo struct {
// Named controls Name()
Named string
// Sized controls Size()
Sized int64
// Moded controls Mode()
Moded os.FileMode
// BirthedTime controls BirthTime()
BirthedTime time.Time
// BirthedTimeErr stores any error encountered when trying to get BirthTime
BirthedTimeErr error
// ModdedTime controls ModTime()
ModdedTime time.Time
// Dir controls IsDir()
Dir bool
}
// BirthTime implements webdav.BirthTimer
func (fi *StaticFileInfo) BirthTime(_ context.Context) (time.Time, error) {
return fi.BirthedTime, fi.BirthedTimeErr
}
func (fi *StaticFileInfo) Name() string { return fi.Named }
func (fi *StaticFileInfo) Size() int64 { return fi.Sized }
func (fi *StaticFileInfo) Mode() os.FileMode { return fi.Moded }
func (fi *StaticFileInfo) ModTime() time.Time { return fi.ModdedTime }
func (fi *StaticFileInfo) IsDir() bool { return fi.Dir }
func (fi *StaticFileInfo) Sys() any { return nil }
func RenamedFileInfo(ctx context.Context, name string, fi fs.FileInfo) *StaticFileInfo {
var birthTime time.Time
var birthTimeErr error
birthTimer, ok := fi.(webdav.BirthTimer)
if ok {
birthTime, birthTimeErr = birthTimer.BirthTime(ctx)
}
return &StaticFileInfo{
Named: name,
Sized: fi.Size(),
Moded: fi.Mode(),
BirthedTime: birthTime,
BirthedTimeErr: birthTimeErr,
ModdedTime: fi.ModTime(),
Dir: fi.IsDir(),
}
}
// ReadOnlyDirInfo returns a static fs.FileInfo for a read-only directory
func ReadOnlyDirInfo(name string, ts time.Time) *StaticFileInfo {
return &StaticFileInfo{
Named: name,
Sized: 0,
Moded: 0555,
BirthedTime: ts,
ModdedTime: ts,
Dir: true,
}
}