parseBlockCIMMount parses the mount returned by the BlockCIM snapshotter and returns
(m *mount.Mount)
| 161 | |
| 162 | // parseBlockCIMMount parses the mount returned by the BlockCIM snapshotter and returns |
| 163 | func parseBlockCIMMount(m *mount.Mount) (*cimfs.BlockCIM, []*cimfs.BlockCIM, error) { |
| 164 | var ( |
| 165 | parentPaths []string |
| 166 | ) |
| 167 | |
| 168 | for _, option := range m.Options { |
| 169 | if val, ok := strings.CutPrefix(option, mount.ParentLayerCimPathsFlag); ok { |
| 170 | err := json.Unmarshal([]byte(val), &parentPaths) |
| 171 | if err != nil { |
| 172 | return nil, nil, err |
| 173 | } |
| 174 | } else if val, ok = strings.CutPrefix(option, mount.BlockCIMTypeFlag); ok { |
| 175 | // only support single file for extraction for now |
| 176 | if val != mount.BlockCIMTypeFile { |
| 177 | return nil, nil, fmt.Errorf("extraction doesn't support layer type `%s`", val) |
| 178 | } |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | var ( |
| 183 | parentLayers []*cimfs.BlockCIM |
| 184 | extractionLayer *cimfs.BlockCIM |
| 185 | ) |
| 186 | |
| 187 | extractionLayer = &cimfs.BlockCIM{ |
| 188 | Type: cimfs.BlockCIMTypeSingleFile, |
| 189 | BlockPath: filepath.Dir(m.Source), |
| 190 | CimName: filepath.Base(m.Source), |
| 191 | } |
| 192 | for _, p := range parentPaths { |
| 193 | parentLayers = append(parentLayers, &cimfs.BlockCIM{ |
| 194 | Type: cimfs.BlockCIMTypeSingleFile, |
| 195 | BlockPath: filepath.Dir(p), |
| 196 | CimName: filepath.Base(p), |
| 197 | }) |
| 198 | } |
| 199 | return extractionLayer, parentLayers, nil |
| 200 | } |
| 201 | |
| 202 | // Apply applies the content associated with the provided digests onto the |
| 203 | // provided mounts. Archive content will be extracted and decompressed if |