Fix to ensure specifying source_path does not download unwanted files

file.go

@@ -81,6 +81,7 @@ func extractFiles(zipFilePath, filesToExtractFromZipPath, localPath string) erro
 
 	// Add the path from which we will extract files to the path prefix so we can exclude the appropriate files
 	pathPrefix = filepath.Join(pathPrefix, filesToExtractFromZipPath)
+	pathPrefix = pathPrefix + "/"
 
 	// Iterate through the files in the archive,
 	// printing some of their contents.
@@ -149,4 +150,4 @@ func MakeGitHubZipFileRequest(gitHubCommit GitHubCommit, gitHubToken string, ins
 	}
 
 	return request, nil
-}
+}

file_test.go

@@ -296,6 +296,7 @@ func TestExtractFiles(t *testing.T) {
 		{publicGitHub, "test-fixtures/fetch-test-public-0.0.2.zip", "/", 2, nil},
 		{publicGitHub, "test-fixtures/fetch-test-public-0.0.3.zip", "/", 4, []string{"/README.md"} },
 		{publicGitHub, "test-fixtures/fetch-test-public-0.0.3.zip", "/folder", 2, nil},
+		{publicGitHub, "test-fixtures/fetch-test-public-0.0.4.zip", "/aaa", 2, []string{"/hello.txt", "/subaaa/subhello.txt"} },
 	}
 
 	for _, tc := range cases {