restic/walk.go
2015-04-29 20:59:06 -04:00

49 lines
1.2 KiB
Go

package restic
import (
"path/filepath"
"github.com/restic/restic/backend"
"github.com/restic/restic/debug"
"github.com/restic/restic/server"
)
type WalkTreeJob struct {
Path string
Error error
Node *Node
Tree *Tree
}
func walkTree(s *server.Server, path string, treeID backend.ID, done chan struct{}, jobCh chan<- WalkTreeJob) {
debug.Log("walkTree", "start on %q (%v)", path, treeID.Str())
t, err := LoadTree(s, treeID)
if err != nil {
jobCh <- WalkTreeJob{Path: path, Error: err}
return
}
for _, node := range t.Nodes {
p := filepath.Join(path, node.Name)
if node.Type == "dir" {
walkTree(s, p, node.Subtree, done, jobCh)
} else {
jobCh <- WalkTreeJob{Path: p, Node: node}
}
}
jobCh <- WalkTreeJob{Path: path, Tree: t}
debug.Log("walkTree", "done for %q (%v)", path, treeID.Str())
}
// WalkTree walks the tree specified by id recursively and sends a job for each
// file and directory it finds. When the channel done is closed, processing
// stops.
func WalkTree(server *server.Server, id backend.ID, done chan struct{}, jobCh chan<- WalkTreeJob) {
debug.Log("WalkTree", "start on %v", id.Str())
walkTree(server, "", id, done, jobCh)
close(jobCh)
debug.Log("WalkTree", "done")
}