1 files changed, 126 insertions, 0 deletions
diff --git a/vendor/github.com/mholt/archiver/v3/tarbz2.go b/vendor/github.com/mholt/archiver/v3/tarbz2.go
new file mode 100644
index 0000000000..e5870a7d29
--- /dev/null
+++ b/vendor/github.com/mholt/archiver/v3/tarbz2.go
@@ -0,0 +1,126 @@
+package archiver
+
+import (
+	"fmt"
+	"io"
+	"strings"
+
+	"github.com/dsnet/compress/bzip2"
+)
+
+// TarBz2 facilitates bzip2 compression
+// (https://github.com/dsnet/compress/blob/master/doc/bzip2-format.pdf)
+// of tarball archives.
+type TarBz2 struct {
+	*Tar
+
+	CompressionLevel int
+}
+
+// CheckExt ensures the file extension matches the format.
+func (*TarBz2) CheckExt(filename string) error {
+	if !strings.HasSuffix(filename, ".tar.bz2") &&
+		!strings.HasSuffix(filename, ".tbz2") {
+		return fmt.Errorf("filename must have a .tar.bz2 or .tbz2 extension")
+	}
+	return nil
+}
+
+// Archive creates a compressed tar file at destination
+// containing the files listed in sources. The destination
+// must end with ".tar.bz2" or ".tbz2". File paths can be
+// those of regular files or directories; directories will
+// be recursively added.
+func (tbz2 *TarBz2) Archive(sources []string, destination string) error {
+	err := tbz2.CheckExt(destination)
+	if err != nil {
+		return fmt.Errorf("output %s", err.Error())
+	}
+	tbz2.wrapWriter()
+	return tbz2.Tar.Archive(sources, destination)
+}
+
+// Unarchive unpacks the compressed tarball at
+// source to destination. Destination will be
+// treated as a folder name.
+func (tbz2 *TarBz2) Unarchive(source, destination string) error {
+	tbz2.wrapReader()
+	return tbz2.Tar.Unarchive(source, destination)
+}
+
+// Walk calls walkFn for each visited item in archive.
+func (tbz2 *TarBz2) Walk(archive string, walkFn WalkFunc) error {
+	tbz2.wrapReader()
+	return tbz2.Tar.Walk(archive, walkFn)
+}
+
+// Create opens tbz2 for writing a compressed
+// tar archive to out.
+func (tbz2 *TarBz2) Create(out io.Writer) error {
+	tbz2.wrapWriter()
+	return tbz2.Tar.Create(out)
+}
+
+// Open opens t for reading a compressed archive from
+// in. The size parameter is not used.
+func (tbz2 *TarBz2) Open(in io.Reader, size int64) error {
+	tbz2.wrapReader()
+	return tbz2.Tar.Open(in, size)
+}
+
+// Extract extracts a single file from the tar archive.
+// If the target is a directory, the entire folder will
+// be extracted into destination.
+func (tbz2 *TarBz2) Extract(source, target, destination string) error {
+	tbz2.wrapReader()
+	return tbz2.Tar.Extract(source, target, destination)
+}
+
+func (tbz2 *TarBz2) wrapWriter() {
+	var bz2w *bzip2.Writer
+	tbz2.Tar.writerWrapFn = func(w io.Writer) (io.Writer, error) {
+		var err error
+		bz2w, err = bzip2.NewWriter(w, &bzip2.WriterConfig{
+			Level: tbz2.CompressionLevel,
+		})
+		return bz2w, err
+	}
+	tbz2.Tar.cleanupWrapFn = func() {
+		bz2w.Close()
+	}
+}
+
+func (tbz2 *TarBz2) wrapReader() {
+	var bz2r *bzip2.Reader
+	tbz2.Tar.readerWrapFn = func(r io.Reader) (io.Reader, error) {
+		var err error
+		bz2r, err = bzip2.NewReader(r, nil)
+		return bz2r, err
+	}
+	tbz2.Tar.cleanupWrapFn = func() {
+		bz2r.Close()
+	}
+}
+
+func (tbz2 *TarBz2) String() string { return "tar.bz2" }
+
+// NewTarBz2 returns a new, default instance ready to be customized and used.
+func NewTarBz2() *TarBz2 {
+	return &TarBz2{
+		CompressionLevel: bzip2.DefaultCompression,
+		Tar:              NewTar(),
+	}
+}
+
+// Compile-time checks to ensure type implements desired interfaces.
+var (
+	_ = Reader(new(TarBz2))
+	_ = Writer(new(TarBz2))
+	_ = Archiver(new(TarBz2))
+	_ = Unarchiver(new(TarBz2))
+	_ = Walker(new(TarBz2))
+	_ = Extractor(new(TarBz2))
+)
+
+// DefaultTarBz2 is a convenient archiver ready to use.
+var DefaultTarBz2 = NewTarBz2()