func SourceFromDsc(dsc *control.DSC, directory string) (*Source, error) {
pkg := Source{}
paragraph := dsc.Paragraph
paragraph.Set("Directory", directory)
// paragraph.Set("Filename", debFile.Path)
return &pkg, control.UnpackFromParagraph(paragraph, &pkg)
}
// Create a Package entry from a deb.Deb file. This will copy the binary
// .deb Control file into the Package entry, and set information as to
// the location of the file, the size of the file, and hash the file.
func PackageFromDeb(debFile deb.Deb) (*Package, error) {
pkg := Package{}
paragraph := debFile.Control.Paragraph
paragraph.Set("Filename", debFile.Path)
/* Now, let's do some magic */
fd, err := os.Open(debFile.Path)
if err != nil {
return nil, err
}
stat, err := fd.Stat()
if err != nil {
return nil, err
}
paragraph.Set("Size", strconv.Itoa(int(stat.Size())))
/* Right, now, in addition, we ought to hash the crap out of the file */
md5sum := md5.New()
sha1 := sha1.New()
sha256 := sha256.New()
writer := io.MultiWriter(md5sum, sha256, sha1)
if _, err := io.Copy(writer, fd); err != nil {
return nil, err
}
for key, hasher := range map[string]hash.Hash{
"MD5sum": md5sum,
"SHA1": sha1,
"SHA256": sha256,
} {
paragraph.Set(key, fmt.Sprintf("%x", hasher.Sum(nil)))
}
return &pkg, control.UnpackFromParagraph(debFile.Control.Paragraph, &pkg)
}