Update documentation. Remove all traces of chdir from the steam library. Remove most linter complaints.

1 files changed, 9 insertions, 8 deletions

diff --git a/steam/archive.go b/steam/archive.go
index d997051..296defa 100644
--- a/steam/archive.go
+++ b/steam/archive.go
@@ -2,13 +2,14 @@ package steam
 
 import (
 	"archive/tar"
+	"fmt"
 	"io"
 	"os"
 	"path/filepath"
 	"strings"
 )
 
-func TarWalkfn(writer *tar.Writer) filepath.WalkFunc {
+func tarWalkfn(writer *tar.Writer, prefix string) filepath.WalkFunc {
 	return func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
@@ -24,13 +25,16 @@ func TarWalkfn(writer *tar.Writer) filepath.WalkFunc {
 		}
 		defer f.Close()
 
-		// Convert Windows paths to Unix paths
-		path = strings.Replace(path, "\\", "/", -1)
+		// Let's strip out all of the leading parts of the path
+		// to create a tarball realative to the root of the steam library
+		tarPth := strings.TrimPrefix(path, prefix)
+		tarPth = strings.ReplaceAll(tarPth, "\\", "/")
+		tarPth = strings.TrimPrefix(tarPth, "/")
 
 		// TODO; See if tar.FileInfoheader() could be used instead
 		// without the pathing issues I encountered
 		h := &tar.Header{
-			Name: path,
+			Name: tarPth,
 			Size: info.Size(),
 			// I don't like it... but it helps with platform compatibility
 			Mode:    0664,
@@ -44,10 +48,7 @@ func TarWalkfn(writer *tar.Writer) filepath.WalkFunc {
 
 		_, 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 fmt.Errorf("While copying %s: %w", path, err)
 		}
 
 		return nil