| package getter |
| |
| import ( |
| "compress/bzip2" |
| "fmt" |
| "io" |
| "os" |
| "path/filepath" |
| ) |
| |
| // Bzip2Decompressor is an implementation of Decompressor that can |
| // decompress bz2 files. |
| type Bzip2Decompressor struct{} |
| |
| func (d *Bzip2Decompressor) Decompress(dst, src string, dir bool) error { |
| // Directory isn't supported at all |
| if dir { |
| return fmt.Errorf("bzip2-compressed files can only unarchive to a single file") |
| } |
| |
| // If we're going into a directory we should make that first |
| if err := os.MkdirAll(filepath.Dir(dst), 0755); err != nil { |
| return err |
| } |
| |
| // File first |
| f, err := os.Open(src) |
| if err != nil { |
| return err |
| } |
| defer f.Close() |
| |
| // Bzip2 compression is second |
| bzipR := bzip2.NewReader(f) |
| |
| // Copy it out |
| dstF, err := os.Create(dst) |
| if err != nil { |
| return err |
| } |
| defer dstF.Close() |
| |
| _, err = io.Copy(dstF, bzipR) |
| return err |
| } |
