mirror of
https://github.com/octoleo/restic.git
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109 lines
2.2 KiB
Go
109 lines
2.2 KiB
Go
// +build !openbsd
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// +build !windows
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package main
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import (
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"os"
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"restic/debug"
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"restic/errors"
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resticfs "restic/fs"
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"restic/fuse"
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systemFuse "bazil.org/fuse"
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"bazil.org/fuse/fs"
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)
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type CmdMount struct {
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Root bool `long:"owner-root" description:"use 'root' as the owner of files and dirs" default:"false"`
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global *GlobalOptions
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}
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func init() {
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_, err := parser.AddCommand("mount",
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"mount a repository",
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"The mount command mounts a repository read-only to a given directory",
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&CmdMount{
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global: &globalOpts,
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})
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if err != nil {
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panic(err)
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}
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}
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func (cmd CmdMount) Usage() string {
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return "MOUNTPOINT"
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}
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func (cmd CmdMount) Mount(mountpoint string) error {
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debug.Log("mount", "start mount")
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defer debug.Log("mount", "finish mount")
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repo, err := cmd.global.OpenRepository()
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if err != nil {
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return err
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}
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err = repo.LoadIndex()
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if err != nil {
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return err
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}
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if _, err := resticfs.Stat(mountpoint); os.IsNotExist(errors.Cause(err)) {
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cmd.global.Verbosef("Mountpoint %s doesn't exist, creating it\n", mountpoint)
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err = resticfs.Mkdir(mountpoint, os.ModeDir|0700)
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if err != nil {
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return err
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}
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}
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c, err := systemFuse.Mount(
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mountpoint,
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systemFuse.ReadOnly(),
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systemFuse.FSName("restic"),
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)
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if err != nil {
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return err
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}
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root := fs.Tree{}
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root.Add("snapshots", fuse.NewSnapshotsDir(repo, cmd.Root))
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debug.Log("mount", "serving mount at %v", mountpoint)
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err = fs.Serve(c, &root)
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if err != nil {
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return err
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}
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<-c.Ready
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return c.MountError
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}
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func (cmd CmdMount) Umount(mountpoint string) error {
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return systemFuse.Unmount(mountpoint)
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}
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func (cmd CmdMount) Execute(args []string) error {
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if len(args) == 0 {
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return errors.Fatalf("wrong number of parameters, Usage: %s", cmd.Usage())
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}
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mountpoint := args[0]
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AddCleanupHandler(func() error {
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debug.Log("mount", "running umount cleanup handler for mount at %v", mountpoint)
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err := cmd.Umount(mountpoint)
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if err != nil {
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cmd.global.Warnf("unable to umount (maybe already umounted?): %v\n", err)
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}
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return nil
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})
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cmd.global.Printf("Now serving the repository at %s\n", mountpoint)
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cmd.global.Printf("Don't forget to umount after quitting!\n")
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return cmd.Mount(mountpoint)
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}
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