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Add support for opening .rar files (and fix build script)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| package archiver | ||
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||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/nwaples/rardecode" | ||
| ) | ||
|
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| // Rar makes a .rar archive, but this is not implemented because | ||
| // RAR is a proprietary format. It is here only for symmetry with | ||
| // the other archive formats in this package. | ||
| func Rar(rarPath string, filePaths []string) error { | ||
| return fmt.Errorf("make %s: RAR not implemented (proprietary format)", rarPath) | ||
| } | ||
|
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| // Unrar extracts the RAR file at source and puts the contents | ||
| // into destination. | ||
| func Unrar(source, destination string) error { | ||
| f, err := os.Open(source) | ||
| if err != nil { | ||
| return fmt.Errorf("%s: failed to open archive: %v", source, err) | ||
| } | ||
| defer f.Close() | ||
|
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| rr, err := rardecode.NewReader(f, "") | ||
| if err != nil { | ||
| return fmt.Errorf("%s: failed to create reader: %v", source, err) | ||
| } | ||
|
|
||
| for { | ||
| header, err := rr.Next() | ||
| if err == io.EOF { | ||
| break | ||
| } else if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if header.IsDir { | ||
| err = mkdir(filepath.Join(destination, header.Name)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| continue | ||
| } | ||
|
|
||
| err = writeNewFile(filepath.Join(destination, header.Name), rr, header.Mode()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } |