populate hits the blobstore to populate map of child nodes.
(ctx context.Context)
| 251 | |
| 252 | // populate hits the blobstore to populate map of child nodes. |
| 253 | func (n *roFileVersionsDir) populate(ctx context.Context) error { |
| 254 | n.mu.Lock() |
| 255 | defer n.mu.Unlock() |
| 256 | |
| 257 | // Things never change here, so if we've ever populated, we're |
| 258 | // populated. |
| 259 | if n.children != nil { |
| 260 | return nil |
| 261 | } |
| 262 | |
| 263 | Logger.Printf("roFileVersionsDir.populate(%q)", n.fullPath()) |
| 264 | res, err := n.fs.client.GetClaims(ctx, &search.ClaimsRequest{Permanode: n.permanode, AttrFilter: "camliContent"}) |
| 265 | if err != nil { |
| 266 | return fmt.Errorf("error while getting claims: %w", err) |
| 267 | } |
| 268 | |
| 269 | n.children = make(map[string]roFileOrDir) |
| 270 | for _, cl := range res.Claims { |
| 271 | pn, ok := blob.Parse(cl.Value) |
| 272 | if !ok { |
| 273 | return errors.New("invalid blobref") |
| 274 | } |
| 275 | res, err := n.fs.client.Describe(ctx, &search.DescribeRequest{ |
| 276 | BlobRef: pn, // this is camliContent |
| 277 | Depth: 1, |
| 278 | At: cl.Date, |
| 279 | }) |
| 280 | if err != nil { |
| 281 | return fmt.Errorf("blobref not described: %w", err) |
| 282 | } |
| 283 | db := res.Meta[cl.Value] |
| 284 | if db == nil { |
| 285 | return errors.New("blobref not described") |
| 286 | } |
| 287 | name := cl.Date.String() |
| 288 | n.children[name] = &roFileVersion{ |
| 289 | fs: n.fs, |
| 290 | permanode: n.permanode, |
| 291 | parent: n, |
| 292 | name: name, |
| 293 | content: db.BlobRef, |
| 294 | size: db.File.Size, |
| 295 | mtime: cl.Date.Time(), |
| 296 | } |
| 297 | |
| 298 | } |
| 299 | return nil |
| 300 | } |
| 301 | |
| 302 | func (n *roFileVersionsDir) ReadDir(ctx context.Context) ([]fuse.Dirent, error) { |
| 303 | if err := n.populate(ctx); err != nil { |