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// +build ignore
package main
import (
"archive/tar"
"compress/gzip"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"os"
"path"
"path/filepath"
"strings"
)
func main() {
var (
prefix = "gitea-gitignore"
url = "https://api.github.com/repos/github/gitignore/tarball"
destination = ""
)
flag.StringVar(&destination, "dest", "options/gitignore/", "destination for the gitignores")
flag.Parse()
file, err := ioutil.TempFile(os.TempDir(), prefix)
if err != nil {
log.Fatalf("Failed to create temp file. %s", err)
}
defer os.Remove(file.Name())
resp, err := http.Get(url)
if err != nil {
log.Fatalf("Failed to download archive. %s", err)
}
defer resp.Body.Close()
if _, err := io.Copy(file, resp.Body); err != nil {
log.Fatalf("Failed to copy archive to file. %s", err)
}
if _, err := file.Seek(0, 0); err != nil {
log.Fatalf("Failed to reset seek on archive. %s", err)
}
gz, err := gzip.NewReader(file)
if err != nil {
log.Fatalf("Failed to gunzip the archive. %s", err)
}
tr := tar.NewReader(gz)
filesToCopy := make(map[string]string, 0)
for {
hdr, err := tr.Next()
if err == io.EOF {
break
}
if err != nil {
log.Fatalf("Failed to iterate archive. %s", err)
}
if filepath.Ext(hdr.Name) != ".gitignore" {
continue
}
if hdr.Typeflag == tar.TypeSymlink {
fmt.Printf("Found symlink %s -> %s\n", hdr.Name, hdr.Linkname)
filesToCopy[strings.TrimSuffix(filepath.Base(hdr.Name), ".gitignore")] = strings.TrimSuffix(filepath.Base(hdr.Linkname), ".gitignore")
continue
}
out, err := os.Create(path.Join(destination, strings.TrimSuffix(filepath.Base(hdr.Name), ".gitignore")))
if err != nil {
log.Fatalf("Failed to create new file. %s", err)
}
defer out.Close()
if _, err := io.Copy(out, tr); err != nil {
log.Fatalf("Failed to write new file. %s", err)
} else {
fmt.Printf("Written %s\n", out.Name())
}
}
for dst, src := range filesToCopy {
// Read all content of src to data
src = path.Join(destination, src)
data, err := ioutil.ReadFile(src)
if err != nil {
log.Fatalf("Failed to read src file. %s", err)
}
// Write data to dst
dst = path.Join(destination, dst)
err = ioutil.WriteFile(dst, data, 0644)
if err != nil {
log.Fatalf("Failed to write new file. %s", err)
}
fmt.Printf("Written (copy of %s) %s\n", src, dst)
}
fmt.Println("Done")
}
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