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fuse: Add hosts dir
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parent
f4e85a53e7
commit
64f434eca4
3 changed files with 113 additions and 14 deletions
99
src/restic/fuse/hosts_dir.go
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99
src/restic/fuse/hosts_dir.go
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@ -0,0 +1,99 @@
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// +build !openbsd
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// +build !windows
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package fuse
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import (
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"os"
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"restic"
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"restic/debug"
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"golang.org/x/net/context"
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"bazil.org/fuse"
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"bazil.org/fuse/fs"
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)
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// HostsDir is a fuse directory which contains hostnames.
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type HostsDir struct {
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inode uint64
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root *Root
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snapshots restic.Snapshots
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hosts map[string]*SnapshotsDir
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}
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// NewHostsDir returns a new directory containing hostnames, which in
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// turn contains snapshots of a single host each.
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func NewHostsDir(root *Root, inode uint64, snapshots restic.Snapshots) *HostsDir {
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hosts := make(map[string]restic.Snapshots)
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for _, sn := range snapshots {
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hosts[sn.Hostname] = append(hosts[sn.Hostname], sn)
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}
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debug.Log("create hosts dir with %d snapshots, inode %d", len(hosts), inode)
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d := &HostsDir{
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root: root,
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inode: inode,
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snapshots: snapshots,
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hosts: make(map[string]*SnapshotsDir),
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}
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for hostname, snapshots := range hosts {
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debug.Log(" host %v has %v snapshots", hostname, len(snapshots))
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d.hosts[hostname] = NewSnapshotsDir(root, fs.GenerateDynamicInode(inode, hostname), snapshots)
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}
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return d
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}
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// Attr returns the attributes for the root node.
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func (d *HostsDir) 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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if !d.root.cfg.OwnerIsRoot {
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attr.Uid = uint32(os.Getuid())
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attr.Gid = uint32(os.Getgid())
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}
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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 *HostsDir) 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.hosts {
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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 *HostsDir) 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.hosts[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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@ -28,8 +28,10 @@ type Root struct {
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cfg Config
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inode uint64
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snapshots restic.Snapshots
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dirSnapshots *SnapshotsDir
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blobSizeCache *BlobSizeCache
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dirSnapshots *SnapshotsDir
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dirHosts *HostsDir
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}
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// ensure that *Root implements these interfaces
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@ -50,7 +52,8 @@ func NewRoot(ctx context.Context, repo restic.Repository, cfg Config) (*Root, er
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snapshots: snapshots,
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}
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root.dirSnapshots = NewDirSnapshots(root, fs.GenerateDynamicInode(root.inode, "snapshots"), snapshots)
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root.dirSnapshots = NewSnapshotsDir(root, fs.GenerateDynamicInode(root.inode, "snapshots"), snapshots)
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root.dirHosts = NewHostsDir(root, fs.GenerateDynamicInode(root.inode, "hosts"), snapshots)
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root.blobSizeCache = NewBlobSizeCache(ctx, repo.Index())
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return root, nil
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@ -94,16 +97,11 @@ func (r *Root) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
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Name: "snapshots",
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Type: fuse.DT_Dir,
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},
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// {
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// Inode: fs.GenerateDynamicInode(0, "tags"),
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// Name: "tags",
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// Type: fuse.DT_Dir,
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// },
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// {
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// Inode: fs.GenerateDynamicInode(0, "hosts"),
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// Name: "hosts",
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// Type: fuse.DT_Dir,
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// },
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{
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Inode: fs.GenerateDynamicInode(0, "hosts"),
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Name: "hosts",
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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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@ -115,6 +113,8 @@ func (r *Root) Lookup(ctx context.Context, name string) (fs.Node, error) {
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switch name {
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case "snapshots":
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return r.dirSnapshots, nil
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case "hosts":
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return r.dirHosts, nil
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}
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return nil, fuse.ENOENT
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@ -28,8 +28,8 @@ type SnapshotsDir struct {
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var _ = fs.HandleReadDirAller(&SnapshotsDir{})
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var _ = fs.NodeStringLookuper(&SnapshotsDir{})
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// NewDirSnapshots returns a new directory containing snapshots.
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func NewDirSnapshots(root *Root, inode uint64, snapshots restic.Snapshots) *SnapshotsDir {
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// NewSnapshotsDir returns a new directory containing snapshots.
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func NewSnapshotsDir(root *Root, inode uint64, snapshots restic.Snapshots) *SnapshotsDir {
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debug.Log("create snapshots dir with %d snapshots, inode %d", len(snapshots), inode)
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d := &SnapshotsDir{
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root: root,
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