feat(scripts):create-live-network: reuse raw spec if already exist

scripts/create-live-network.sh

 #!/usr/bin/env bash
+#
+# USAGE
+#
+# 1. Generate genesis authorities session keys.
+# 2. Create the json file that contains the genesis configuration and verify carefully that the
+#    declared session keys correspond to the one you have generated in the first step.
+# 3. Generate raw chain specs with script `gen-live-network-raw-spec.sh`.
+# 4. Share the generated raw spec with other genesis authorities.
+# 5. Each genesis authority should run this script with its session keys seed.
+#
+
 # This script is meant to be run on Unix/Linux based systems
 set -e
 
 # params
 VALIDATOR_SESSION_KEYS_SURI=$1
-GENESIS="${2:-resources/gdev.json}"
-CURRENCY="${3:-gdev}"
-WORK_DIR="${4:-tmp/$CURRENCY}"
+CURRENCY="${2:-gdev}"
+WORK_DIR="${3:-tmp/$CURRENCY}"
+SPEC_DIR="${4:-resources}"
 
 echo "CURRENCY=$CURRENCY"
 
@@ -21,10 +32,18 @@ mkdir -p $WORK_DIR/duniter-validator
 # build client in debug mode
 #cargo clean -p duniter && cargo build
 
-# generate raw_chain spec
-export DUNITER_GENESIS_CONFIG=$GENESIS
-$DUNITER_BINARY build-spec --chain $CURRENCY-gl --raw > $WORK_DIR/duniter-rpc/$CURRENCY-raw.json
-cp $WORK_DIR/duniter-rpc/$CURRENCY-raw.json $WORK_DIR/duniter-validator/$CURRENCY-raw.json
+if [ -e "$SPEC_DIR/$CURRENCY-raw.json" ]
+then
+  # copy raw chain spec
+  cp $SPEC_DIR/$CURRENCY-raw.json $WORK_DIR/duniter-rpc/$CURRENCY-raw.json
+  cp $SPEC_DIR/$CURRENCY-raw.json $WORK_DIR/duniter-validator/$CURRENCY-raw.json
+else
+  # generate raw chain spec
+  echo "generate raw_chain spec…"
+  export DUNITER_GENESIS_CONFIG="$SPEC_DIR/$CURRENCY.json"
+  $DUNITER_BINARY build-spec --chain $CURRENCY-gl --raw > $WORK_DIR/duniter-rpc/$CURRENCY-raw.json
+  cp $WORK_DIR/duniter-rpc/$CURRENCY-raw.json $WORK_DIR/duniter-validator/$CURRENCY-raw.json
+fi
 
 # generate rpc node key
 RPC_NODE_KEY=$($DUNITER_BINARY key generate-node-key --file $WORK_DIR/duniter-rpc/node-key 2>&1)
@@ -39,9 +58,10 @@ sed -i -e "s/RPC_NODE_KEY/$RPC_NODE_KEY/g" $WORK_DIR/docker-compose.yml
 sed -i -e "s/VALIDATOR_NODE_KEY/$VALIDATOR_NODE_KEY/g" $WORK_DIR/docker-compose.yml
 
 # Inject validator session keys in validator node keystore
-$DUNITER_BINARY key generate-session-keys --chain "${CURRENCY}_local" --suri "$VALIDATOR_SESSION_KEYS_SURI" -d $WORK_DIR/duniter-validator
+$DUNITER_BINARY key generate-session-keys --chain "${CURRENCY}_local" --suri "$VALIDATOR_SESSION_KEYS_SURI" -d $WORK_DIR/duniter-validator > /dev/null
 mv $WORK_DIR/duniter-validator/chains/${CURRENCY}_local $WORK_DIR/duniter-validator/chains/$CURRENCY
 
 # Launch the network
+echo "compose ready in '$WORK_DIR'"
 cd $WORK_DIR
 #docker-compose up -d