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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| package content | ||
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| import ( | ||
| "archive/zip" | ||
| "fmt" | ||
| "github.com/wttech/aemc/pkg/common/pathx" | ||
| "io" | ||
| "os" | ||
| "path/filepath" | ||
| ) | ||
|
|
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| func Archive(sourcePath, targetFile string) error { | ||
|
There was a problem hiding this comment. zipper should |
||
| if !pathx.Exists(sourcePath) { | ||
| return fmt.Errorf("cannot archive path '%s' to file '%s' as source path does not exist", sourcePath, targetFile) | ||
| } | ||
| err := pathx.Ensure(filepath.Dir(targetFile)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| err = compress(sourcePath, targetFile) | ||
| if err != nil { | ||
| return fmt.Errorf("cannot archive dir '%s' to file '%s': %w", sourcePath, targetFile, err) | ||
| } | ||
| return nil | ||
| } | ||
|
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| func Unarchive(sourceFile string, targetDir string) error { | ||
| if !pathx.Exists(sourceFile) { | ||
| return fmt.Errorf("cannot unarchive file '%s' to dir '%s' as source file does not exist", sourceFile, targetDir) | ||
| } | ||
| if err := pathx.Ensure(targetDir); err != nil { | ||
| return err | ||
| } | ||
| if err := extract(sourceFile, targetDir); err != nil { | ||
| return fmt.Errorf("cannot unarchive file '%s' to dir '%s': %w", sourceFile, targetDir, err) | ||
| } | ||
| return nil | ||
| } | ||
|
|
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| func compress(src string, dest string) error { | ||
|
|
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| destFile, err := os.Create(dest) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer destFile.Close() | ||
|
|
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| zipWriter := zip.NewWriter(destFile) | ||
| defer zipWriter.Close() | ||
|
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| err = filepath.Walk(src, func(path string, info os.FileInfo, err error) error { | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| header, err := zip.FileInfoHeader(info) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| header.Name, err = filepath.Rel(src, path) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| if info.IsDir() { | ||
| header.Name += "/" | ||
| } else { | ||
| header.Method = zip.Deflate | ||
| } | ||
|
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| writer, err := zipWriter.CreateHeader(header) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| if !info.IsDir() { | ||
| file, err := os.Open(path) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer file.Close() | ||
|
|
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| _, err = io.Copy(writer, file) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
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| return nil | ||
| }) | ||
|
|
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| return err | ||
| } | ||
|
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| func extract(src string, dest string) error { | ||
|
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| zipReader, err := zip.OpenReader(src) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer zipReader.Close() | ||
|
|
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| for _, file := range zipReader.File { | ||
| filePath := filepath.Join(dest, file.Name) | ||
|
|
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| if file.FileInfo().IsDir() { | ||
| os.MkdirAll(filePath, 0755) | ||
| continue | ||
| } | ||
|
|
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| if err := os.MkdirAll(filepath.Dir(filePath), 0755); err != nil { | ||
| return err | ||
| } | ||
|
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| inFile, err := file.Open() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer inFile.Close() | ||
|
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| outFile, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, file.Mode()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer outFile.Close() | ||
|
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| _, err = io.Copy(outFile, inFile) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
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| return nil | ||
| } | ||
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it would be nice to explain why extra zipper/archiver is needed here and why mholt cannot be used here.