Ensure cache directory exists (#205)

Author: aledbf

pkg/leeway/cache/local/fs.go

@@ -41,6 +41,10 @@ func (fsc *FilesystemCache) Location(pkg cache.Package) (path string, exists boo
 	tarPath := filepath.Join(fsc.Origin, fmt.Sprintf("%s.tar", version))
 	exists = fileExists(tarPath)
 
+	// Ensure parent directory exists for download operations
+	// This is safe to do even if we're just checking existence
+	_ = os.MkdirAll(filepath.Dir(tarPath), 0755)
+
 	return tarPath, exists
 }
 

pkg/leeway/cache/remote/s3.go

@@ -303,6 +303,11 @@ func (s *S3Storage) GetObject(ctx context.Context, key string, dest string) (int
 		d.PartSize = defaultS3PartSize
 	})
 
+	// Ensure parent directory exists
+	if err := os.MkdirAll(filepath.Dir(dest), 0755); err != nil {
+		return 0, fmt.Errorf("failed to create parent directory: %w", err)
+	}
+
 	file, err := os.OpenFile(dest, os.O_CREATE|os.O_WRONLY, 0644)
 	if err != nil {
 		return 0, fmt.Errorf("failed to create destination file: %w", err)