func createDumbDeb(debPath, rootPath, controlPath string) error {
now := time.Now()
deb, err := os.Create(debPath)
defer deb.Close()
if err != nil {
return err
}
dataTarGz, err := createData(now, rootPath)
if err != nil {
return err
}
rootFiles := md5data(rootPath)
md5sums := []byte(strings.Join(rootFiles, "\n"))
controlTarGz, err := createControl(now, controlPath, md5sums)
if err != nil {
return err
}
w := ar.NewWriter(deb)
if err := w.WriteGlobalHeader(); err != nil {
return fmt.Errorf("cannot write ar header to deb file: %v", err)
}
if err := addArFile(now, w, "debian-binary", []byte("2.0\n")); err != nil {
return fmt.Errorf("cannot pack debian-binary: %v", err)
}
if err := addArFile(now, w, "control.tar.gz", controlTarGz); err != nil {
return fmt.Errorf("cannot add control.tar.gz to deb: %v", err)
}
if err := addArFile(now, w, "data.tar.gz", dataTarGz); err != nil {
return fmt.Errorf("cannot add data.tar.gz to deb: %v", err)
}
return nil
}
func createDeb(version string, tarball io.Reader, deb io.Writer) error {
now := time.Now()
dataTarGz, md5sums, instSize, err := translateTarball(now, tarball)
if err != nil {
return err
}
controlTarGz, err := createControl(now, version, instSize, md5sums)
if err != nil {
return err
}
w := ar.NewWriter(deb)
if err := w.WriteGlobalHeader(); err != nil {
return fmt.Errorf("cannot write ar header to deb file: %v", err)
}
if err := addArFile(now, w, "debian-binary", []byte("2.0\n")); err != nil {
return fmt.Errorf("cannot pack debian-binary: %v", err)
}
if err := addArFile(now, w, "control.tar.gz", controlTarGz); err != nil {
return fmt.Errorf("cannot add control.tar.gz to deb: %v", err)
}
if err := addArFile(now, w, "data.tar.gz", dataTarGz); err != nil {
return fmt.Errorf("cannot add data.tar.gz to deb: %v", err)
}
return nil
}
// Build takes a build debian directory with DEBIAN/ dir and creates a
// clickdeb from it
func (d *ClickDeb) Build(sourceDir string, dataTarFinishedCallback func(dataName string) error) error {
var err error
// tmp
tempdir, err := ioutil.TempDir("", "data")
if err != nil {
return err
}
defer os.RemoveAll(tempdir)
// we use gz to support signature verification on older ubuntu releases
// like trusty that does not support xz yet
dataName := filepath.Join(tempdir, "data.tar.gz")
err = tarCreate(dataName, sourceDir, func(path string) bool {
return !strings.HasPrefix(path, filepath.Join(sourceDir, "DEBIAN"))
})
if err != nil {
return err
}
// this allows us to add hashes
if dataTarFinishedCallback != nil {
if err := dataTarFinishedCallback(dataName); err != nil {
return err
}
}
// create control data (for click compat)
controlName := filepath.Join(tempdir, "control.tar.gz")
if err := tarCreate(controlName, filepath.Join(sourceDir, "DEBIAN"), nil); err != nil {
return err
}
// create ar
arWriter := ar.NewWriter(d.file)
arWriter.WriteGlobalHeader()
// debian magic
if err := addDataToAr(arWriter, "debian-binary", []byte("2.0\n")); err != nil {
return err
}
// click magic
if err := addDataToAr(arWriter, "_click-binary", []byte("0.4\n")); err != nil {
return err
}
// control file
if err := addFileToAr(arWriter, controlName); err != nil {
return err
}
// data file
if err := addFileToAr(arWriter, dataName); err != nil {
return err
}
return nil
}