func ExtractArchive() {
data, err := elf.ExtractSection(*input)
if err != nil {
log.Fatalf("failed extracting section from %s: %s", *input, err)
}
file, err := os.OpenFile(*extract, os.O_WRONLY|os.O_CREATE, 0644)
if err != nil {
log.Fatalf("failed to open %s for writing: %s", *extract, err)
}
defer file.Close()
_, err = io.Copy(file, bytes.NewReader(data))
if err != nil {
log.Fatalf("failed copy: %s", err)
}
}
func Load() (*Goblet, error) {
binary, err := osext.Executable()
if err != nil {
return nil, err
}
data, err := elf.ExtractSection(binary)
if err != nil {
return nil, err
}
r := tar.NewReader(bytes.NewReader(data))
files := make(map[string]*Asset)
for {
hdr, err := r.Next()
if err != nil {
if err == io.EOF {
break
}
return nil, fmt.Errorf("failed to get next entry: %s", err)
}
buffer := make([]byte, hdr.Size)
_, err = io.ReadFull(r, buffer)
if err != nil {
return nil, fmt.Errorf("failed reading from archive %s: %s", hdr.Name, err)
}
files[hdr.Name] = &Asset{
Name: hdr.Name,
Data: buffer,
LastModified: hdr.ModTime,
Sha1: fmt.Sprintf("%x", sha1.New().Sum(buffer)),
}
}
return &Goblet{files}, nil
}