| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "archive/tar" |
| 5 | "archive/zip" |
| 6 | "compress/gzip" |
| 7 | "io" |
| 8 | "net/http" |
| 9 | "strings" |
| 10 | |
| 11 | "github.com/go-git/go-git/v5" |
| 12 | "github.com/go-git/go-git/v5/plumbing/filemode" |
| 13 | "github.com/go-git/go-git/v5/plumbing/object" |
| 14 | ) |
| 15 | |
| 16 | func writeTarGz(w http.ResponseWriter, repo *git.Repository, ref, prefix string) error { |
| 17 | c, err := resolveRef(repo, ref) |
| 18 | if err != nil { |
| 19 | return err |
| 20 | } |
| 21 | tree, err := c.Tree() |
| 22 | if err != nil { |
| 23 | return err |
| 24 | } |
| 25 | |
| 26 | gz := gzip.NewWriter(w) |
| 27 | defer gz.Close() |
| 28 | tw := tar.NewWriter(gz) |
| 29 | defer tw.Close() |
| 30 | |
| 31 | return tree.Files().ForEach(func(f *object.File) error { |
| 32 | mode := int64(0644) |
| 33 | if f.Mode == filemode.Executable { |
| 34 | mode = 0755 |
| 35 | } |
| 36 | hdr := &tar.Header{ |
| 37 | Name: prefix + "/" + f.Name, |
| 38 | Mode: mode, |
| 39 | Size: f.Size, |
| 40 | } |
| 41 | if err := tw.WriteHeader(hdr); err != nil { |
| 42 | return err |
| 43 | } |
| 44 | r, err := f.Blob.Reader() |
| 45 | if err != nil { |
| 46 | return err |
| 47 | } |
| 48 | _, err = io.Copy(tw, r) |
| 49 | r.Close() |
| 50 | return err |
| 51 | }) |
| 52 | } |
| 53 | |
| 54 | func writeZip(w http.ResponseWriter, repo *git.Repository, ref, prefix string) error { |
| 55 | c, err := resolveRef(repo, ref) |
| 56 | if err != nil { |
| 57 | return err |
| 58 | } |
| 59 | tree, err := c.Tree() |
| 60 | if err != nil { |
| 61 | return err |
| 62 | } |
| 63 | |
| 64 | zw := zip.NewWriter(w) |
| 65 | defer zw.Close() |
| 66 | |
| 67 | return tree.Files().ForEach(func(f *object.File) error { |
| 68 | zf, err := zw.Create(prefix + "/" + f.Name) |
| 69 | if err != nil { |
| 70 | return err |
| 71 | } |
| 72 | r, err := f.Blob.Reader() |
| 73 | if err != nil { |
| 74 | return err |
| 75 | } |
| 76 | _, err = io.Copy(zf, r) |
| 77 | r.Close() |
| 78 | return err |
| 79 | }) |
| 80 | } |
| 81 | |
| 82 | func parseArchiveName(name string) (ref, format string, ok bool) { |
| 83 | if strings.HasSuffix(name, ".tar.gz") { |
| 84 | return strings.TrimSuffix(name, ".tar.gz"), "tar.gz", true |
| 85 | } |
| 86 | if strings.HasSuffix(name, ".tgz") { |
| 87 | return strings.TrimSuffix(name, ".tgz"), "tar.gz", true |
| 88 | } |
| 89 | if strings.HasSuffix(name, ".zip") { |
| 90 | return strings.TrimSuffix(name, ".zip"), "zip", true |
| 91 | } |
| 92 | return "", "", false |
| 93 | } |