diff -r 86ceb97db7de -r 24c05e69d68f src/CLIParser.h
--- a/src/CLIParser.h	Sat May 23 23:58:50 2020 +0200
+++ b/src/CLIParser.h	Mon May 25 19:36:06 2020 +0200
@@ -54,6 +54,7 @@
 	static const string_t OPTION_COPY_RENAMED;
 	static const string_t OPTION_FILE;
 	static const string_t OPTION_FILE_KEEP;
+	static const string_t OPTION_LIST_DATA_SOURCES;
 
 	Configuration parse(const std::vector<string_t>& arguments) {
 		Configuration c;
@@ -87,6 +88,8 @@
 				else if (value == L"true") c.keepFile = KeepFile::Always;
 				else if (value == L"false") c.keepFile = KeepFile::Never;
 				else throw relpipe::cli::RelpipeCLIException(L"Unsupported keep-file value: " + value + L" Expecting: true, false, auto", relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
+			} else if (option == OPTION_LIST_DATA_SOURCES) {
+				c.listDataSources = true;
 			} else throw relpipe::cli::RelpipeCLIException(L"Unsupported CLI option: " + option, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
 		}
 		addQuery(c, currentQuery); // last relation
@@ -109,6 +112,7 @@
 const string_t CLIParser::OPTION_COPY_RENAMED = L"--copy-renamed";
 const string_t CLIParser::OPTION_FILE = L"--file";
 const string_t CLIParser::OPTION_FILE_KEEP = L"--file-keep";
+const string_t CLIParser::OPTION_LIST_DATA_SOURCES = L"--list-data-sources";
 
 }
 }