add --convert-trades argument to download-data

freqtrade/commands/arguments.py

@@ -142,6 +142,7 @@ ARGS_DOWNLOAD_DATA = [
     "include_inactive",
     "timerange",
     "download_trades",
+    "convert_trades",
     "exchange",
     "timeframes",
     "erase",

freqtrade/commands/cli_options.py

@@ -450,6 +450,13 @@ AVAILABLE_CLI_OPTIONS = {
         "desired timeframe as specified as --timeframes/-t.",
         action="store_true",
     ),
+    "convert_trades": Arg(
+        "--convert",
+        help="Convert downloaded trades to OHLCV data. Only applicable in combination with `--dl-trades`. "
+        "Will be automatic for exchanges which don't have historic OHLCV (e.g. Kraken). "
+        "If not provided, use `trades-to-ohlcv` to convert trades data to OHLCV data.",
+        action="store_true",
+    ),
     "format_from_trades": Arg(
         "--format-from",
         help="Source format for data conversion.",

freqtrade/configuration/configuration.py

@@ -370,6 +370,7 @@ class Configuration:
             ("days", "Detected --days: {}"),
             ("include_inactive", "Detected --include-inactive-pairs: {}"),
             ("download_trades", "Detected --dl-trades: {}"),
+            ("convert_trades", "Detected --convert - Converting Trade data to OHCV {}"),
             ("dataformat_ohlcv", 'Using "{}" to store OHLCV data.'),
             ("dataformat_trades", 'Using "{}" to store trades data.'),
             ("show_timerange", "Detected --show-timerange"),