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mirror of https://github.com/octoleo/restic.git synced 2024-11-18 19:15:14 +00:00
restic/internal/fuse/root.go
2020-07-25 19:39:14 +02:00

82 lines
1.8 KiB
Go

// +build darwin freebsd linux
package fuse
import (
"os"
"time"
"github.com/restic/restic/internal/debug"
"github.com/restic/restic/internal/restic"
"bazil.org/fuse/fs"
)
// Config holds settings for the fuse mount.
type Config struct {
OwnerIsRoot bool
Hosts []string
Tags []restic.TagList
Paths []string
SnapshotTemplate string
}
// Root is the root node of the fuse mount of a repository.
type Root struct {
repo restic.Repository
cfg Config
inode uint64
snapshots restic.Snapshots
blobCache *blobCache
snCount int
lastCheck time.Time
*MetaDir
uid, gid uint32
}
// ensure that *Root implements these interfaces
var _ = fs.HandleReadDirAller(&Root{})
var _ = fs.NodeStringLookuper(&Root{})
const rootInode = 1
// Size of the blob cache. TODO: make this configurable.
const blobCacheSize = 64 << 20
// NewRoot initializes a new root node from a repository.
func NewRoot(repo restic.Repository, cfg Config) *Root {
debug.Log("NewRoot(), config %v", cfg)
root := &Root{
repo: repo,
inode: rootInode,
cfg: cfg,
blobCache: newBlobCache(blobCacheSize),
}
if !cfg.OwnerIsRoot {
root.uid = uint32(os.Getuid())
root.gid = uint32(os.Getgid())
}
entries := map[string]fs.Node{
"snapshots": NewSnapshotsDir(root, fs.GenerateDynamicInode(root.inode, "snapshots"), "", ""),
"tags": NewTagsDir(root, fs.GenerateDynamicInode(root.inode, "tags")),
"hosts": NewHostsDir(root, fs.GenerateDynamicInode(root.inode, "hosts")),
"ids": NewSnapshotsIDSDir(root, fs.GenerateDynamicInode(root.inode, "ids")),
}
root.MetaDir = NewMetaDir(root, rootInode, entries)
return root
}
// Root is just there to satisfy fs.Root, it returns itself.
func (r *Root) Root() (fs.Node, error) {
debug.Log("Root()")
return r, nil
}