1 files changed, 55 insertions, 0 deletions
diff --git a/steam/archive.go b/steam/archive.go
new file mode 100644
index 0000000..d997051
--- /dev/null
+++ b/steam/archive.go
@@ -0,0 +1,55 @@
+package steam
+
+import (
+	"archive/tar"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func TarWalkfn(writer *tar.Writer) filepath.WalkFunc {
+	return func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if info.IsDir() {
+			return nil
+		}
+
+		f, err := os.Open(path)
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+
+		// Convert Windows paths to Unix paths
+		path = strings.Replace(path, "\\", "/", -1)
+
+		// TODO; See if tar.FileInfoheader() could be used instead
+		// without the pathing issues I encountered
+		h := &tar.Header{
+			Name: path,
+			Size: info.Size(),
+			// I don't like it... but it helps with platform compatibility
+			Mode:    0664,
+			ModTime: info.ModTime(),
+		}
+
+		err = writer.WriteHeader(h)
+		if err != nil {
+			return err
+		}
+
+		_, err = io.Copy(writer, f)
+		if err != nil {
+			// TODO: Figure out how to add more useful information to
+			// These errors
+			// fmt.Fprintln(os.Stderr, f.Name())
+			return err
+		}
+
+		return nil
+	}
+}