start script rewrite with options, banner, and colors

.banner

@@ -0,0 +1,26 @@
+
+
+                          Welcome to
+    
+                             ,-._
+                           _.-'  '--.
+                         .'      _  -`\_
+                        / .----.`_.'----'
+                        ;/     `
+                       /_;
+             
+                    ._      ._      ._      ._
+                _.-._)`\_.-._)`\_.-._)`\_.-._)`\_.-._
+       ___                     ___         _               _ 
+      / _ \ __ ___ __ _ _ _   | _ \_ _ ___| |_ ___  __ ___| |
+     | (_) / _/ -_) _` | ' \  |  _/ '_/ _ \  _/ _ \/ _/ _ \ |
+      \___/\__\___\__,_|_||_| |_| |_| \___/\__\___/\__\___/_|
+                            
+                               ---
+
+                Get info: oceanprotocol.com
+                Get code: github.com/oceanprotocol
+                Get help: gitter.im/oceanprotocol/Lobby
+
+                               ---
+

start_ocean.sh

@@ -9,24 +9,57 @@ export REUSE_DATABASE="false"
 export KEEPER_NETWORK_NAME="ganache"
 export ARTIFACTS_FOLDER=~/.ocean/keeper-contracts/artifacts
 
-# default to `stable` versions of all components
-# unless `--latest` argument is given
-if [ "$1" == "--latest" ] || [ "$2" == "--latest" ]; then
-    export OCEAN_VERSION=latest
-else
-    export OCEAN_VERSION=stable
-fi
+# colors
+COLOR_R="\033[0;31m"    # red
+COLOR_G="\033[0;32m"    # green
+COLOR_Y="\033[0;33m"    # yellow
+COLOR_B="\033[0;34m"    # blue
+COLOR_M="\033[0;35m"    # magenta
+COLOR_C="\033[0;36m"    # cyan
 
-if [ "$1" == "--no-pleuston" ]; then
+# reset
+COLOR_RESET="\033[00m"
 
-    export REUSE_DATABASE="true"
-    docker-compose --project-name=ocean -f docker-compose-no-pleuston.yml up
+function show_banner {
+    local output=$(cat .banner)
+    echo -e "$COLOR_B$output$COLOR_RESET"
+    echo ""
+}
 
-elif [ "$1" == "--local-parity-node" ]; then
+show_banner
 
-    export KEEPER_NETWORK_NAME="ocean_poa_net_local"
-    docker-compose --project-name=ocean -f docker-compose-local-parity-node.yml up
+# default to stable versions
+export OCEAN_VERSION=stable
+COMPOSE_FILE='docker-compose.yml'
 
-else
-    docker-compose --project-name=ocean up
-fi
+while :; do
+    case $1 in
+        --latest)
+            export OCEAN_VERSION=latest
+            printf $COLOR_Y'Switched to latest components...\n\n'$COLOR_RESET
+            ;;
+        --no-pleuston)
+            export REUSE_DATABASE="true"
+            COMPOSE_FILE='docker-compose-no-pleuston.yml'
+            printf $COLOR_Y'Starting without Pleuston...\n\n'$COLOR_RESET
+            ;;
+        --local-parity-node)
+            export KEEPER_NETWORK_NAME="ocean_poa_net_local"
+            COMPOSE_FILE='docker-compose-local-parity-node.yml'
+            printf $COLOR_Y'Starting with local Parity node...\n\n'$COLOR_RESET
+            ;;
+        --) # End of all options.
+             shift
+             break
+             ;;
+        -?*)
+             printf $COLOR_R'WARN: Unknown option (ignored): %s\n'$COLOR_RESET "$1" >&2
+             break
+             ;;
+        *)
+            printf $COLOR_Y'Starting Ocean...\n\n'$COLOR_RESET
+            docker-compose --project-name=ocean -f $COMPOSE_FILE up
+            break
+    esac
+    shift
+done