108 lines
1.9 KiB
Go
108 lines
1.9 KiB
Go
package archive
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import (
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"archive/zip"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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)
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type ZipArchiver struct {
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filepath string
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filewriter *os.File
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writer *zip.Writer
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}
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func NewZipArchiver(filepath string) Archiver {
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return &ZipArchiver{
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filepath: filepath,
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}
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}
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func (a *ZipArchiver) ArchiveContent(content []byte, infilename string) error {
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if err := a.open(); err != nil {
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return err
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}
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defer a.close()
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f, err := a.writer.Create(infilename)
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if err != nil {
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return err
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}
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_, err = f.Write(content)
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return err
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}
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func (a *ZipArchiver) ArchiveFile(infilename string) error {
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fi, err := assertValidFile(infilename)
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if err != nil {
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return err
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}
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content, err := ioutil.ReadFile(infilename)
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if err != nil {
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return err
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}
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return a.ArchiveContent(content, fi.Name())
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}
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func (a *ZipArchiver) ArchiveDir(indirname string) error {
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_, err := assertValidDir(indirname)
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if err != nil {
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return err
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}
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if err := a.open(); err != nil {
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return err
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}
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defer a.close()
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return filepath.Walk(indirname, func(path string, info os.FileInfo, err error) error {
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if info.IsDir() {
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return nil
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}
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if err != nil {
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return err
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}
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relname, err := filepath.Rel(indirname, path)
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if err != nil {
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return fmt.Errorf("error relativizing file for archival: %s", err)
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}
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f, err := a.writer.Create(relname)
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if err != nil {
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return fmt.Errorf("error creating file inside archive: %s", err)
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}
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content, err := ioutil.ReadFile(path)
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if err != nil {
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return fmt.Errorf("error reading file for archival: %s", err)
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}
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_, err = f.Write(content)
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return err
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})
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}
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func (a *ZipArchiver) open() error {
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f, err := os.Create(a.filepath)
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if err != nil {
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return err
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}
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a.filewriter = f
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a.writer = zip.NewWriter(f)
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return nil
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}
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func (a *ZipArchiver) close() {
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if a.writer != nil {
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a.writer.Close()
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a.writer = nil
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}
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if a.filewriter != nil {
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a.filewriter.Close()
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a.filewriter = nil
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}
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}
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