step2: extract command function to a file

commands/call.command.sh

@@ -0,0 +1,7 @@
+call_command() {
+  while [ $((PORT < ENDPORT)) != "0" ]; do
+      PORT=$((PORT+1))
+      redis-cli -p $PORT $2 $3 $4 $5 $6 $7 $8 $9
+  done
+  exit 0
+}

commands/clean-logs.command.sh

@@ -0,0 +1,5 @@
+
+clean_logs_command() {
+  rm -rf *.log
+  exit 0
+}

commands/clean.command.sh

@@ -0,0 +1,7 @@
+clean_command() {
+  rm -rf *.log
+  rm -rf appendonly*.aof
+  rm -rf dump*.rdb
+  rm -rf nodes*.conf
+  exit 0
+}

commands/create.command.sh

@@ -0,0 +1,9 @@
+create_command() {
+  HOSTS=""
+  while [ $((PORT < ENDPORT)) != "0" ]; do
+      PORT=$((PORT+1))
+      HOSTS="$HOSTS 127.0.0.1:$PORT"
+  done
+  redis-trib create --replicas $REPLICAS $HOSTS
+  exit 0
+}

commands/start.command.sh

@@ -0,0 +1,8 @@
+start_command() {
+  while [ $((PORT < ENDPORT)) != "0" ]; do
+      PORT=$((PORT+1))
+      echo "Starting $PORT"
+      redis-server --port $PORT --cluster-enabled yes --cluster-config-file nodes-${PORT}.conf --cluster-node-timeout $TIMEOUT --appendonly yes --appendfilename appendonly-${PORT}.aof --dbfilename dump-${PORT}.rdb --logfile ${PORT}.log --daemonize yes
+  done
+  exit 0
+}

commands/stop.command.sh

@@ -0,0 +1,8 @@
+stop_command() {
+  while [ $((PORT < ENDPORT)) != "0" ]; do
+      PORT=$((PORT+1))
+      echo "Stopping $PORT"
+      redis-cli -p $PORT shutdown nosave
+  done
+  exit 0
+}

commands/tail.command.sh

@@ -0,0 +1,6 @@
+tail_command() {
+  INSTANCE=$2
+  PORT=$((PORT+INSTANCE))
+  tail -f ${PORT}.log
+  exit 0
+}

commands/watch.command.sh

@@ -0,0 +1,11 @@
+
+watch_command() {
+  PORT=$((PORT+1))
+  while [ 1 ]; do
+      clear
+      date
+      redis-cli -p $PORT cluster nodes | head -30
+      sleep 1
+  done
+  exit 0
+}

create-cluster

@@ -1,6 +1,7 @@
 #!/bin/bash
 
 source "redis-functions.sh"
+for f in $(ls commands); do source "commands/$f"; done
 
 # Settings
 PORT=30000
@@ -19,72 +20,6 @@ fi
 # Computed vars
 ENDPORT=$((PORT+NODES))
 
-start_command() {
-  while [ $((PORT < ENDPORT)) != "0" ]; do
-      PORT=$((PORT+1))
-      echo "Starting $PORT"
-      redis-server --port $PORT --cluster-enabled yes --cluster-config-file nodes-${PORT}.conf --cluster-node-timeout $TIMEOUT --appendonly yes --appendfilename appendonly-${PORT}.aof --dbfilename dump-${PORT}.rdb --logfile ${PORT}.log --daemonize yes
-  done
-  exit 0
-}
-
-create_command() {
-  HOSTS=""
-  while [ $((PORT < ENDPORT)) != "0" ]; do
-      PORT=$((PORT+1))
-      HOSTS="$HOSTS 127.0.0.1:$PORT"
-  done
-  redis-trib create --replicas $REPLICAS $HOSTS
-  exit 0
-}
-
-stop_command() {
-  while [ $((PORT < ENDPORT)) != "0" ]; do
-      PORT=$((PORT+1))
-      echo "Stopping $PORT"
-      redis-cli -p $PORT shutdown nosave
-  done
-  exit 0
-}
-
-watch_command() {
-  PORT=$((PORT+1))
-  while [ 1 ]; do
-      clear
-      date
-      redis-cli -p $PORT cluster nodes | head -30
-      sleep 1
-  done
-  exit 0
-}
-
-tail_command() {
-  INSTANCE=$2
-  PORT=$((PORT+INSTANCE))
-  tail -f ${PORT}.log
-  exit 0
-}
-
-call_command() {
-  while [ $((PORT < ENDPORT)) != "0" ]; do
-      PORT=$((PORT+1))
-      redis-cli -p $PORT $2 $3 $4 $5 $6 $7 $8 $9
-  done
-  exit 0
-}
-
-clean_command() {
-  rm -rf *.log
-  rm -rf appendonly*.aof
-  rm -rf dump*.rdb
-  rm -rf nodes*.conf
-  exit 0
-}
-
-clean_logs_command() {
-  rm -rf *.log
-  exit 0
-}
 
 if [ "$1" == "start" ]
 then