1 files changed, 64 insertions, 0 deletions
diff --git a/archive/unarchive.go b/archive/unarchive.go
new file mode 100644
index 0000000..5089370
--- /dev/null
+++ b/archive/unarchive.go
@@ -0,0 +1,64 @@
+package archive
+
+import (
+	"archive/tar"
+	fp "path/filepath"
+
+	"io"
+	"os"
+)
+
+type Unarchive struct {
+	Input     string
+	inputFile *os.File
+	tarReader *tar.Reader
+}
+
+// Extracts a tar arcive to the current working directory
+// This will overwrite everything. So be careful
+func (u *Unarchive) UnTar() error {
+	var err error
+	u.inputFile, err = os.Open(u.Input)
+	if err != nil {
+		return err
+	}
+	defer u.inputFile.Close()
+	u.tarReader = tar.NewReader(u.inputFile)
+
+	for {
+		hdr, err := u.tarReader.Next()
+		if err == io.EOF {
+			// We've reached the end! Whoee
+			break
+		}
+		if err != nil {
+			return err
+		}
+
+		info := hdr.FileInfo()
+		if info.IsDir() {
+			if err = os.MkdirAll(hdr.Name, info.Mode()); err != nil {
+				return err
+			}
+			continue
+		}
+
+		if err = os.MkdirAll(fp.Dir(hdr.Name), info.Mode()); err != nil {
+			return err
+		}
+
+		// Create a file handle to work with
+		// f, err := os.Create(hdr.Name)
+		f, err := os.OpenFile(hdr.Name, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, info.Mode())
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+		if _, err := io.Copy(f, u.tarReader); err != nil {
+			return err
+		}
+
+	}
+
+	return nil
+}