(b1, b2 []byte)
| 249 | } |
| 250 | |
| 251 | func diff(b1, b2 []byte) (data []byte, err error) { |
| 252 | f1, err := ioutil.TempFile("", "go-fix") |
| 253 | if err != nil { |
| 254 | return nil, err |
| 255 | } |
| 256 | defer os.Remove(f1.Name()) |
| 257 | defer f1.Close() |
| 258 | |
| 259 | f2, err := ioutil.TempFile("", "go-fix") |
| 260 | if err != nil { |
| 261 | return nil, err |
| 262 | } |
| 263 | defer os.Remove(f2.Name()) |
| 264 | defer f2.Close() |
| 265 | |
| 266 | if _, err := f1.Write(b1); err != nil { |
| 267 | return nil, err |
| 268 | } |
| 269 | if _, err := f2.Write(b2); err != nil { |
| 270 | return nil, err |
| 271 | } |
| 272 | |
| 273 | data, err = exec.Command("diff", "-u", f1.Name(), f2.Name()).CombinedOutput() |
| 274 | if len(data) > 0 { |
| 275 | // diff exits with a non-zero status when the files don't match. |
| 276 | // Ignore that failure as long as we get output. |
| 277 | err = nil |
| 278 | } |
| 279 | return |
| 280 | } |
no outgoing calls