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