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@jonmorehouse
Created February 17, 2014 22:29
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Quick golang script for creating a gzipped tarball
package main
import (
"os"
"archive/tar"
"log"
"io"
"compress/gzip"
)
func addFile(tw * tar.Writer, path string) error {
file, err := os.Open(path)
if err != nil {
return err
}
defer file.Close()
if stat, err := file.Stat(); err == nil {
// now lets create the header as needed for this file within the tarball
header := new(tar.Header)
header.Name = path
header.Size = stat.Size()
header.Mode = int64(stat.Mode())
header.ModTime = stat.ModTime()
// write the header to the tarball archive
if err := tw.WriteHeader(header); err != nil {
return err
}
// copy the file data to the tarball
if _, err := io.Copy(tw, file); err != nil {
return err
}
}
return nil
}
func main() {
// set up the output file
file, err := os.Create("output.tar.gz")
if err != nil {
log.Fatalln(err)
}
defer file.Close()
// set up the gzip writer
gw := gzip.NewWriter(file)
defer gw.Close()
tw := tar.NewWriter(gw)
defer tw.Close()
// grab the paths that need to be added in
paths := []string{
"readme.txt",
}
// add each file as needed into the current tar archive
for i := range paths {
if err := addFile(tw, paths[i]); err != nil {
log.Fatalln(err)
}
}
}
@mholt
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mholt commented Jul 17, 2015

FYI, there's also tar.FileInfoHeader which makes the tar.Header for you.

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