Add genwallet.py script

scripts/README.md

@@ -73,3 +73,7 @@ of the `commitments.json` file, explained above.
 ### sendtomany.py
 
 As above.
+
+### genwallet.py
+
+Non-interactively generate a wallet, giving only wallet name and password. Returns wallet seed as `recovery_seed:`. Useful for automating JoinMarket deployments.

scripts/genwallet.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+import sys
+import os
+from optparse import OptionParser
+from jmclient import load_program_config, add_base_options, SegwitLegacyWallet, create_wallet, jm_single
+from jmbase.support import get_log, jmprint
+
+log = get_log()
+
+def main():
+    parser = OptionParser(
+    usage='usage: %prog [options] wallet_file_name password',
+    description='Create a wallet with the given wallet name and password.')
+    add_base_options(parser)
+    (options, args) = parser.parse_args()
+    if options.wallet_password_stdin:
+        stdin = sys.stdin.read()
+        password = stdin.encode("utf-8")
+    else:
+        assert len(args) > 1, "must provide password via stdin (see --help), or as second argument."
+        password = args[1].encode("utf-8")
+    load_program_config(config_path=options.datadir)
+    wallet_root_path = os.path.join(jm_single().datadir, "wallets")
+    wallet_name = os.path.join(wallet_root_path, args[0])
+    wallet = create_wallet(wallet_name, password, 4, SegwitLegacyWallet)
+    jmprint("recovery_seed:{}"
+         .format(wallet.get_mnemonic_words()[0]), "important")
+    wallet.close()
+
+if __name__ == "__main__":
+    main()