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Merge pull request #1168 from dmcgowan/fix-btrfs-load

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Create btrfs directory if it does not exist
This commit is contained in:
Stephen Day 2017-07-12 15:18:44 -07:00 committed by GitHub
commit a38bce0502
1 changed files with 13 additions and 3 deletions
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16
snapshot/btrfs/btrfs.go
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@ -39,13 +39,23 @@ type snapshotter struct {
// a file in the provided root. // a file in the provided root.
// root needs to be a mount point of btrfs. // root needs to be a mount point of btrfs.
func NewSnapshotter(root string) (snapshot.Snapshotter, error) { func NewSnapshotter(root string) (snapshot.Snapshotter, error) {
mnt, err := mount.Lookup(root) // If directory does not exist, create it
if mnt.FSType != "btrfs" { if _, err := os.Stat(root); err != nil {
return nil, fmt.Errorf("expected btrfs, got %s", mnt.FSType) if !os.IsNotExist(err) {
return nil, err
}
if err := os.Mkdir(root, 0755); err != nil {
return nil, err
}
} }
mnt, err := mount.Lookup(root)
if err != nil { if err != nil {
return nil, err return nil, err
} }
if mnt.FSType != "btrfs" {
return nil, fmt.Errorf("expected btrfs, got %s", mnt.FSType)
}
var ( var (
active = filepath.Join(root, "active") active = filepath.Join(root, "active")
snapshots = filepath.Join(root, "snapshots") snapshots = filepath.Join(root, "snapshots")