mirror of
https://github.com/octoleo/restic.git
synced 2024-11-23 05:12:10 +00:00
110 lines
2.4 KiB
Go
110 lines
2.4 KiB
Go
// +build !openbsd
|
|
// +build !windows
|
|
|
|
package fuse
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/restic/restic/internal/debug"
|
|
"github.com/restic/restic/internal/restic"
|
|
|
|
"golang.org/x/net/context"
|
|
|
|
"bazil.org/fuse"
|
|
"bazil.org/fuse/fs"
|
|
)
|
|
|
|
// SnapshotsDir is a fuse directory which contains snapshots.
|
|
type SnapshotsDir struct {
|
|
inode uint64
|
|
root *Root
|
|
snapshots restic.Snapshots
|
|
names map[string]*restic.Snapshot
|
|
}
|
|
|
|
// ensure that *DirSnapshots implements these interfaces
|
|
var _ = fs.HandleReadDirAller(&SnapshotsDir{})
|
|
var _ = fs.NodeStringLookuper(&SnapshotsDir{})
|
|
|
|
// NewSnapshotsDir returns a new directory containing snapshots.
|
|
func NewSnapshotsDir(root *Root, inode uint64, snapshots restic.Snapshots) *SnapshotsDir {
|
|
debug.Log("create snapshots dir with %d snapshots, inode %d", len(snapshots), inode)
|
|
d := &SnapshotsDir{
|
|
root: root,
|
|
inode: inode,
|
|
snapshots: snapshots,
|
|
names: make(map[string]*restic.Snapshot, len(snapshots)),
|
|
}
|
|
|
|
for _, sn := range snapshots {
|
|
name := sn.Time.Format(time.RFC3339)
|
|
for i := 1; ; i++ {
|
|
if _, ok := d.names[name]; !ok {
|
|
break
|
|
}
|
|
|
|
name = fmt.Sprintf("%s-%d", sn.Time.Format(time.RFC3339), i)
|
|
}
|
|
|
|
d.names[name] = sn
|
|
debug.Log(" add snapshot %v as dir %v", sn.ID().Str(), name)
|
|
}
|
|
|
|
return d
|
|
}
|
|
|
|
// Attr returns the attributes for the root node.
|
|
func (d *SnapshotsDir) Attr(ctx context.Context, attr *fuse.Attr) error {
|
|
attr.Inode = d.inode
|
|
attr.Mode = os.ModeDir | 0555
|
|
|
|
if !d.root.cfg.OwnerIsRoot {
|
|
attr.Uid = uint32(os.Getuid())
|
|
attr.Gid = uint32(os.Getgid())
|
|
}
|
|
debug.Log("attr: %v", attr)
|
|
return nil
|
|
}
|
|
|
|
// ReadDirAll returns all entries of the root node.
|
|
func (d *SnapshotsDir) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
|
|
debug.Log("ReadDirAll()")
|
|
items := []fuse.Dirent{
|
|
{
|
|
Inode: d.inode,
|
|
Name: ".",
|
|
Type: fuse.DT_Dir,
|
|
},
|
|
{
|
|
Inode: d.root.inode,
|
|
Name: "..",
|
|
Type: fuse.DT_Dir,
|
|
},
|
|
}
|
|
|
|
for name := range d.names {
|
|
items = append(items, fuse.Dirent{
|
|
Inode: fs.GenerateDynamicInode(d.inode, name),
|
|
Name: name,
|
|
Type: fuse.DT_Dir,
|
|
})
|
|
}
|
|
|
|
return items, nil
|
|
}
|
|
|
|
// Lookup returns a specific entry from the root node.
|
|
func (d *SnapshotsDir) Lookup(ctx context.Context, name string) (fs.Node, error) {
|
|
debug.Log("Lookup(%s)", name)
|
|
|
|
sn, ok := d.names[name]
|
|
if !ok {
|
|
return nil, fuse.ENOENT
|
|
}
|
|
|
|
return newDirFromSnapshot(ctx, d.root, fs.GenerateDynamicInode(d.inode, name), sn)
|
|
}
|