// fillReply empties the unionFs and hashes files as needed. It will
// return the FS back the pool as soon as possible.
func (t *Mirror) fillReply(state *workerFSState) (*attr.FileSet, []string) {
fsResult := state.fs.reap()
t.returnFS(state)
files := make([]*attr.FileAttr, 0, len(fsResult.files))
wrRoot := strings.TrimLeft(state.fs.fuseFS.writableRoot, "/")
reapedHashes := map[string]string{}
for path, v := range fsResult.files {
f := &attr.FileAttr{
Path: fastpath.Join(wrRoot, path),
}
if v.Attr != nil {
f.Attr = v.Attr
}
f.Link = v.Link
if !f.Deletion() && f.IsRegular() {
contentPath := fastpath.Join(wrRoot, v.Original)
if v.Original != "" && v.Original != contentPath {
fa := t.rpcFs.attr.Get(contentPath)
if fa.Hash == "" {
log.Panicf("Contents for %q disappeared.", contentPath)
}
f.Hash = fa.Hash
}
if v.Backing != "" {
h, ok := reapedHashes[v.Backing]
if !ok {
var err error
h, err = t.worker.content.DestructiveSavePath(v.Backing)
if err != nil || h == "" {
log.Fatalf("DestructiveSavePath fail %v, %q", err, h)
}
reapedHashes[v.Backing] = h
}
f.Hash = h
}
}
files = append(files, f)
}
fset := attr.FileSet{Files: files}
fset.Sort()
err := os.Remove(fsResult.dir)
if err != nil {
log.Fatalf("fillReply: Remove failed: %v", err)
}
return &fset, fsResult.reads
}
