Fix addcoin decred.

basicswap/basicswap.py

@@ -1071,8 +1071,6 @@ class BasicSwap(BaseApp):
                 key_str = 'main_wallet_seedid_alt_' + db_key_coin_name
                 self.setStringKV(key_str, legacy_root_hash.hex(), session)
 
-            session.commit()  # else get error database is locked!?
-
             # Clear any saved addresses
             self.clearStringKV('receive_addr_' + db_key_coin_name, session)
             self.clearStringKV('stealth_addr_' + db_key_coin_name, session)
@@ -1140,12 +1138,13 @@ class BasicSwap(BaseApp):
             if session is None:
                 self.closeSession(use_session, commit=False)
 
-    def clearStringKV(self, str_key: str, str_val: str) -> None:
+    def clearStringKV(self, str_key: str, session=None) -> None:
         try:
-            session = self.openSession()
-            session.execute('DELETE FROM kv_string WHERE key = :key', {'key': str_key})
+            use_session = self.openSession(session)
+            use_session.execute('DELETE FROM kv_string WHERE key = :key', {'key': str_key})
         finally:
-            self.closeSession(session)
+            if session is None:
+                self.closeSession(use_session)
 
     def getPreFundedTx(self, linked_type: int, linked_id: bytes, tx_type: int, session=None) -> Optional[bytes]:
         try:

bin/basicswap_prepare.py

@@ -1295,7 +1295,7 @@ def initialise_wallets(particl_wallet_mnemonic, with_coins, data_dir, settings,
             if not swap_client.use_tor_proxy:
                 # Cannot set -bind or -whitebind together with -listen=0
                 daemon_args.append('-nolisten')
-            coins_to_create_wallets_for = (Coins.PART, Coins.BTC, Coins.LTC, Coins.DASH)
+            coins_to_create_wallets_for = (Coins.PART, Coins.BTC, Coins.LTC, Coins.DCR, Coins.DASH)
             # Always start Particl, it must be running to initialise a wallet in addcoin mode
             # Particl must be loaded first as subsequent coins are initialised from the Particl mnemonic
             start_daemons = ['particl', ] + [c for c in with_coins if c != 'particl']
@@ -1322,8 +1322,10 @@ def initialise_wallets(particl_wallet_mnemonic, with_coins, data_dir, settings,
                 swap_client.setCoinRunParams(c)
                 swap_client.createCoinInterface(c)
 
-                if c == Coins.DCR:
-                    if coin_settings['manage_wallet_daemon']:
+                if c in coins_to_create_wallets_for:
+                    if c == Coins.DCR:
+                        if coin_settings['manage_wallet_daemon'] is False:
+                            continue
                         from basicswap.interface.dcr.util import createDCRWallet
 
                         dcr_password = coin_settings['wallet_pwd'] if WALLET_ENCRYPTION_PWD == '' else WALLET_ENCRYPTION_PWD
@@ -1335,7 +1337,7 @@ def initialise_wallets(particl_wallet_mnemonic, with_coins, data_dir, settings,
                         args = [os.path.join(coin_settings['bindir'], filename), '--create'] + extra_opts
                         hex_seed = swap_client.getWalletKey(Coins.DCR, 1).hex()
                         createDCRWallet(args, hex_seed, logger, threading.Event())
-                if c in coins_to_create_wallets_for:
+                        continue
                     swap_client.waitForDaemonRPC(c, with_wallet=False)
                     # Create wallet if it doesn't exist yet
                     wallets = swap_client.callcoinrpc(c, 'listwallets')

docker/production/compose-fragments/1_decred-wallet.yml

@@ -0,0 +1,16 @@
+    monero_wallet:
+        image: i_decred_wallet
+        build:
+            context: decred_wallet
+            dockerfile: Dockerfile
+        container_name: decred_wallet
+        volumes:
+            - ${DATA_PATH}/decred_wallet:/data
+        expose:
+            - ${DCR_WALLET_RPC_PORT}
+        logging:
+            driver: "json-file"
+            options:
+                max-size: "10m"
+                max-file: "3"
+        restart: unless-stopped

docker/production/compose-fragments/8_decred-daemon.yml

@@ -0,0 +1,16 @@
+    monero_daemon:
+        image: i_decred_daemon
+        build:
+            context: decred_daemon
+            dockerfile: Dockerfile
+        container_name: decred_daemon
+        volumes:
+            - ${DATA_PATH}/decred_daemon:/data
+        expose:
+            - ${DCR_RPC_PORT}
+        logging:
+            driver: "json-file"
+            options:
+                max-size: "10m"
+                max-file: "3"
+        restart: unless-stopped

docker/production/decred_daemon/Dockerfile

@@ -0,0 +1,25 @@
+FROM i_swapclient as install_stage
+
+RUN basicswap-prepare --preparebinonly --bindir=/coin_bin --withcoin=decred --withoutcoins=particl && \
+    find /coin_bin -name *.tar.gz -delete
+
+FROM debian:bullseye-slim
+COPY --from=install_stage /coin_bin .
+
+ENV DCR_DATA /data
+
+RUN groupadd -r decred && useradd -r -m -g decred decred \
+    && apt-get update \
+    && apt-get install -qq --no-install-recommends gosu \
+    && rm -rf /var/lib/apt/lists/* \
+    && mkdir "$DCR_DATA" \
+    && chown -R decred:decred "$DCR_DATA" \
+    && ln -sfn "$DECRED_DATA" /home/decred/decred \
+    && chown -h decred:decred /home/decred/decred
+VOLUME /data
+
+COPY entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]
+
+EXPOSE 9108 9109
+CMD ["/decred/dcrd", "--datadir=/data"]

docker/production/decred_daemon/entrypoint.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+set -e
+
+if [[ "$1" == "dcrctl" || "$1" == "dcrd" || "$1" == "dcrwallet"  ]]; then
+	mkdir -p "$DECRED_DATA"
+
+	chown -h decred:decred /home/decred/decred
+	exec gosu decred "$@"
+else
+	exec "$@"
+fi

docker/production/decred_wallet/Dockerfile

@@ -0,0 +1,19 @@
+FROM i_decred_daemon
+
+ENV DCR_DATA /data
+
+RUN groupadd -r decred && useradd -r -m -g decred decred \
+    && apt-get update \
+    && apt-get install -qq --no-install-recommends gosu \
+    && rm -rf /var/lib/apt/lists/* \
+    && mkdir "$DCR_DATA" \
+    && chown -R decred:decred "$DCR_DATA" \
+    && ln -sfn "$DECRED_DATA" /home/decred/decred \
+    && chown -h decred:decred /home/decred/decred
+VOLUME /data
+
+COPY entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]
+
+EXPOSE 9209
+CMD ["/decred/dcrwallet", "--datadir=/data"]

docker/production/decred_wallet/entrypoint.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+set -e
+
+if [[ "$1" == "dcrctl" || "$1" == "dcrd" || "$1" == "dcrwallet"  ]]; then
+	mkdir -p "$DECRED_DATA"
+
+	chown -h decred:decred /home/decred/decred
+	exec gosu decred "$@"
+else
+	exec "$@"
+fi

docker/production/example.env

@@ -14,17 +14,25 @@ PART_ZMQ_PORT=20792
 PART_RPC_USER=particl_user
 PART_RPC_PWD=particl_pwd
 
+BTC_DATA_DIR=/data/bitcoin
+BTC_RPC_HOST=bitcoin_core
+BTC_RPC_PORT=19796
+BTC_RPC_USER=bitcoin_user
+BTC_RPC_PWD=bitcoin_pwd
+
 LTC_DATA_DIR=/data/litecoin
 LTC_RPC_HOST=litecoin_core
 LTC_RPC_PORT=19795
 LTC_RPC_USER=litecoin_user
 LTC_RPC_PWD=litecoin_pwd
 
-BTC_DATA_DIR=/data/bitcoin
-BTC_RPC_HOST=bitcoin_core
-BTC_RPC_PORT=19796
-BTC_RPC_USER=bitcoin_user
-BTC_RPC_PWD=bitcoin_pwd
+DCR_DATA_DIR=/data/decred
+DCR_RPC_HOST=decred_daemon
+DCR_RPC_PORT=DCR_RPC_PORT
+DCR_WALLET_RPC_HOST=decred_wallet
+DCR_WALLET_RPC_PORT=9209
+DCR_RPC_USER=decred_user
+DCR_RPC_PWD=decred_pass
 
 XMR_DATA_DIR=/data/monero_daemon
 XMR_RPC_HOST=monero_daemon

docker/production/notes.md

@@ -3,6 +3,13 @@
 This will setup Basicswap so that each coin runs in it's own container.
 
 
+### Coin notes
+
+    - Decred is only partially supported, the wallet will need to be initialised manually.
+
+
+## Setup
+
 Install dependencies:
 
     sudo apt install basez docker-compose
@@ -33,13 +40,14 @@ Create docker-compose config:
     # Using the helper script:
     ./scripts/build_yml_files.py -c bitcoin monero
 
-    # Or
+    # Or manually:
 
     cat compose-fragments/0_start.yml > docker-compose.yml
 
     # Add the relevant coin fragments
     cat compose-fragments/1_bitcoin.yml >> docker-compose.yml
     cat compose-fragments/1_litecoin.yml >> docker-compose.yml
+    cat compose-fragments/1_decred-wallet.yml >> docker-compose.yml
     cat compose-fragments/1_monero-wallet.yml >> docker-compose.yml
     cat compose-fragments/1_pivx.yml >> docker-compose.yml
     cat compose-fragments/1_dash.yml >> docker-compose.yml
@@ -121,6 +129,7 @@ Start BasicSwap:
     popd
 
     docker-compose build monero_daemon
+    docker-compose build decred_daemon
     docker-compose build
 
     docker-compose build --no-cache swapclient

docker/production/scripts/build_yml_files.py

@@ -66,6 +66,15 @@ def main():
                     for line in fp_in:
                         fp.write(line)
                 continue
+            if coin_name == 'decred':
+                with open(os.path.join(fragments_dir, '1_decred-wallet.yml'), 'rb') as fp_in:
+                    for line in fp_in:
+                        fp.write(line)
+                        fpp.write(line)
+                with open(os.path.join(fragments_dir, '8_decred-daemon.yml'), 'rb') as fp_in:
+                    for line in fp_in:
+                        fp.write(line)
+                continue
             with open(os.path.join(fragments_dir, f'1_{coin_name}.yml'), 'rb') as fp_in:
                 for line in fp_in:
                     fp.write(line)