forked from TrueCloudLab/restic
85 lines
1.7 KiB
Go
85 lines
1.7 KiB
Go
//go:build darwin || freebsd || linux
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// +build darwin freebsd linux
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package fuse
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import (
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"context"
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"os"
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"github.com/restic/restic/internal/debug"
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"bazil.org/fuse"
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"bazil.org/fuse/fs"
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)
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// ensure that *DirSnapshots implements these interfaces
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var _ = fs.HandleReadDirAller(&MetaDir{})
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var _ = fs.NodeStringLookuper(&MetaDir{})
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// MetaDir is a fuse directory which contains other directories.
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type MetaDir struct {
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inode uint64
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root *Root
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entries map[string]fs.Node
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}
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// NewMetaDir returns a new meta dir.
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func NewMetaDir(root *Root, inode uint64, entries map[string]fs.Node) *MetaDir {
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debug.Log("new meta dir with %d entries, inode %d", len(entries), inode)
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return &MetaDir{
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root: root,
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inode: inode,
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entries: entries,
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}
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}
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// Attr returns the attributes for the root node.
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func (d *MetaDir) Attr(ctx context.Context, attr *fuse.Attr) error {
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attr.Inode = d.inode
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attr.Mode = os.ModeDir | 0555
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attr.Uid = d.root.uid
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attr.Gid = d.root.gid
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debug.Log("attr: %v", attr)
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return nil
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}
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// ReadDirAll returns all entries of the root node.
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func (d *MetaDir) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
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debug.Log("ReadDirAll()")
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items := []fuse.Dirent{
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{
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Inode: d.inode,
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Name: ".",
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Type: fuse.DT_Dir,
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},
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{
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Inode: d.root.inode,
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Name: "..",
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Type: fuse.DT_Dir,
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},
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}
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for name := range d.entries {
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items = append(items, fuse.Dirent{
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Inode: fs.GenerateDynamicInode(d.inode, name),
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Name: name,
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Type: fuse.DT_Dir,
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})
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}
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return items, nil
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}
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// Lookup returns a specific entry from the root node.
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func (d *MetaDir) Lookup(ctx context.Context, name string) (fs.Node, error) {
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debug.Log("Lookup(%s)", name)
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if dir, ok := d.entries[name]; ok {
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return dir, nil
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}
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return nil, fuse.ENOENT
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}
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