Merge branch 'develop' into pr/froggleston/7861

docs/utils.md

@@ -966,3 +966,47 @@ Print trades with id 2 and 3 as json
 ``` bash
 freqtrade show-trades --db-url sqlite:///tradesv3.sqlite --trade-ids 2 3 --print-json
 ```
+
+### Strategy-Updater
+
+Updates listed strategies or all strategies within the strategies folder to be v3 compliant.
+If the command runs without --strategy-list then all strategies inside the strategies folder will be converted.
+Your original strategy will remain available in the `user_data/strategies_orig_updater/` directory.
+
+!!! Warning "Conversion results"
+    Strategy updater will work on a "best effort" approach. Please do your due diligence and verify the results of the conversion.
+    We also recommend to run a python formatter (e.g. `black`) to format results in a sane manner.
+
+```
+usage: freqtrade strategy-updater [-h] [-v] [--logfile FILE] [-V] [-c PATH]
+                                  [-d PATH] [--userdir PATH]
+                                  [--strategy-list STRATEGY_LIST [STRATEGY_LIST ...]]
+
+options:
+  -h, --help            show this help message and exit
+  --strategy-list STRATEGY_LIST [STRATEGY_LIST ...]
+                        Provide a space-separated list of strategies to
+                        backtest. Please note that timeframe needs to be set
+                        either in config or via command line. When using this
+                        together with `--export trades`, the strategy-name is
+                        injected into the filename (so `backtest-data.json`
+                        becomes `backtest-data-SampleStrategy.json`
+
+Common arguments:
+  -v, --verbose         Verbose mode (-vv for more, -vvv to get all messages).
+  --logfile FILE, --log-file FILE
+                        Log to the file specified. Special values are:
+                        'syslog', 'journald'. See the documentation for more
+                        details.
+  -V, --version         show program's version number and exit
+  -c PATH, --config PATH
+                        Specify configuration file (default:
+                        `userdir/config.json` or `config.json` whichever
+                        exists). Multiple --config options may be used. Can be
+                        set to `-` to read config from stdin.
+  -d PATH, --datadir PATH, --data-dir PATH
+                        Path to directory with historical backtesting data.
+  --userdir PATH, --user-data-dir PATH
+                        Path to userdata directory.
+
+```