Get min/max data in list-data command

freqtrade/commands/arguments.py

@@ -69,7 +69,7 @@ ARGS_CONVERT_DATA_OHLCV = ARGS_CONVERT_DATA + ["timeframes", "exchange", "tradin
 
 ARGS_CONVERT_TRADES = ["pairs", "timeframes", "exchange", "dataformat_ohlcv", "dataformat_trades"]
 
-ARGS_LIST_DATA = ["exchange", "dataformat_ohlcv", "pairs", "trading_mode"]
+ARGS_LIST_DATA = ["exchange", "dataformat_ohlcv", "pairs", "trading_mode", "show_timerange"]
 
 ARGS_DOWNLOAD_DATA = ["pairs", "pairs_file", "days", "new_pairs_days", "include_inactive",
                       "timerange", "download_trades", "exchange", "timeframes",

freqtrade/commands/cli_options.py

@@ -434,6 +434,11 @@ AVAILABLE_CLI_OPTIONS = {
         help='Storage format for downloaded trades data. (default: `jsongz`).',
         choices=constants.AVAILABLE_DATAHANDLERS,
     ),
+    "show_timerange": Arg(
+        '--show-timerange',
+        help='Show timerange available for available data. (May take a while to calculate).',
+        action='store_true',
+    ),
     "exchange": Arg(
         '--exchange',
         help=f'Exchange name (default: `{constants.DEFAULT_EXCHANGE}`). '

freqtrade/commands/data_commands.py

@@ -5,6 +5,7 @@ from datetime import datetime, timedelta
 from typing import Any, Dict, List
 
 from freqtrade.configuration import TimeRange, setup_utils_configuration
+from freqtrade.constants import DATETIME_PRINT_FORMAT
 from freqtrade.data.converter import convert_ohlcv_format, convert_trades_format
 from freqtrade.data.history import (convert_trades_to_ohlcv, refresh_backtest_ohlcv_data,
                                     refresh_backtest_trades_data)
@@ -177,6 +178,7 @@ def start_list_data(args: Dict[str, Any]) -> None:
         paircombs = [comb for comb in paircombs if comb[0] in args['pairs']]
 
     print(f"Found {len(paircombs)} pair / timeframe combinations.")
+    if not config.get('show_timerange'):
         groupedpair = defaultdict(list)
         for pair, timeframe, candle_type in sorted(
             paircombs,
@@ -191,3 +193,16 @@ def start_list_data(args: Dict[str, Any]) -> None:
             ],
                 headers=("Pair", "Timeframe", "Type"),
                 tablefmt='psql', stralign='right'))
+    else:
+        paircombs1 = [(
+            pair, timeframe, candle_type,
+            *dhc.ohlcv_data_min_max(pair, timeframe, candle_type)
+        ) for pair, timeframe, candle_type in paircombs]
+        print(tabulate([
+            (pair, timeframe, candle_type,
+                start.strftime(DATETIME_PRINT_FORMAT),
+                end.strftime(DATETIME_PRINT_FORMAT))
+            for pair, timeframe, candle_type, start, end in paircombs1
+            ],
+            headers=("Pair", "Timeframe", "Type", 'From', 'To'),
+            tablefmt='psql', stralign='right'))

freqtrade/configuration/configuration.py

@@ -426,6 +426,9 @@ class Configuration:
         self._args_to_config(config, argname='dataformat_trades',
                              logstring='Using "{}" to store trades data.')
 
+        self._args_to_config(config, argname='show_timerange',
+                             logstring='Detected --show-timerange')
+
     def _process_data_options(self, config: Dict[str, Any]) -> None:
         self._args_to_config(config, argname='new_pairs_days',
                              logstring='Detected --new-pairs-days: {}')

freqtrade/data/history/idatahandler.py

@@ -9,7 +9,7 @@ from abc import ABC, abstractmethod
 from copy import deepcopy
 from datetime import datetime, timezone
 from pathlib import Path
-from typing import List, Optional, Type
+from typing import List, Optional, Tuple, Type
 
 from pandas import DataFrame
 
@@ -84,6 +84,18 @@ class IDataHandler(ABC):
         :return: None
         """
 
+    def ohlcv_data_min_max(self, pair: str, timeframe: str,
+                           candle_type: CandleType) -> Tuple[datetime, datetime]:
+        """
+        Returns the min and max timestamp for the given pair and timeframe.
+        :param pair: Pair to get min/max for
+        :param timeframe: Timeframe to get min/max for
+        :param candle_type: Any of the enum CandleType (must match trading mode!)
+        :return: (min, max)
+        """
+        data = self._ohlcv_load(pair, timeframe, None, candle_type)
+        return data.iloc[0]['date'].to_pydatetime(), data.iloc[-1]['date'].to_pydatetime()
+
     @abstractmethod
     def _ohlcv_load(self, pair: str, timeframe: str, timerange: Optional[TimeRange],
                     candle_type: CandleType

tests/commands/test_commands.py

@@ -1430,6 +1430,27 @@ def test_start_list_data(testdatadir, capsys):
     assert "\n|      XRP/USDT |          1h |      futures |\n" in captured.out
     assert "\n|      XRP/USDT |      1h, 8h |         mark |\n" in captured.out
 
+    args = [
+        "list-data",
+        "--data-format-ohlcv",
+        "json",
+        "--pairs", "XRP/ETH",
+        "--datadir",
+        str(testdatadir),
+        "--show-timerange",
+    ]
+    pargs = get_args(args)
+    pargs['config'] = None
+    start_list_data(pargs)
+    captured = capsys.readouterr()
+    assert "Found 2 pair / timeframe combinations." in captured.out
+    assert ("\n|    Pair |   Timeframe |   Type |                From |                  To |\n"
+            in captured.out)
+    assert "UNITTEST/BTC" not in captured.out
+    assert (
+            "\n| XRP/ETH |          1m |   spot | 2019-10-11 00:00:00 | 2019-10-13 11:19:00 |\n"
+            in captured.out)
+
 
 @pytest.mark.usefixtures("init_persistence")
 def test_show_trades(mocker, fee, capsys, caplog):