56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package compositefs
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import (
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"context"
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"io/fs"
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"tailscale.com/tailfs/tailfsimpl/shared"
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)
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// Stat implements webdav.FileSystem.
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func (cfs *CompositeFileSystem) Stat(ctx context.Context, name string) (fs.FileInfo, error) {
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if shared.IsRoot(name) {
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// Root is a directory
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// always use now() as the modified time to bust caches
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fi := shared.ReadOnlyDirInfo(name, cfs.now())
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if cfs.statChildren {
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// update last modified time based on children
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cfs.childrenMu.Lock()
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children := cfs.children
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cfs.childrenMu.Unlock()
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for i, child := range children {
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childInfo, err := child.FS.Stat(ctx, "/")
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if err != nil {
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return nil, err
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}
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if i == 0 || childInfo.ModTime().After(fi.ModTime()) {
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fi.ModdedTime = childInfo.ModTime()
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}
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}
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}
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return fi, nil
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}
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pathInfo, err := cfs.pathInfoFor(name)
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if err != nil {
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return nil, err
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}
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if pathInfo.refersToChild && !cfs.statChildren {
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// Return a read-only FileInfo for this child.
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// Always use now() as the modified time to bust caches.
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return shared.ReadOnlyDirInfo(name, cfs.now()), nil
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}
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fi, err := pathInfo.child.FS.Stat(ctx, pathInfo.pathOnChild)
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if err != nil {
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return nil, err
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}
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// we use the full name, which is different than what the child sees
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return shared.RenamedFileInfo(ctx, name, fi), nil
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}
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