Added devenv.sh script, modified start.sh for setting up a development environment

devenv.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+set -eo pipefail
+
+./webodm.sh checkenv
+
+usage(){
+  echo "Usage: $0 <command> [options]"
+  echo
+  echo "This program helps to setup a development environment for WebODM using docker."
+  echo 
+  echo "Command list:"
+  echo "	start		Start the development environment"
+  echo "	stop		Stop the development environment"
+  exit
+}
+
+
+run(){
+	echo $1
+	eval $1
+}
+
+start(){
+	run "docker-compose -f docker-compose.yml -f docker-compose.nodeodm.yml -f docker-compose.dev.yml up"
+}
+
+stop(){
+	./webodm.sh stop
+}
+
+if [[ $1 = "start" ]]; then
+	echo "Starting development environment..."
+	start
+else
+	usage
+fi

docker-compose.dev.yml

@@ -0,0 +1,6 @@
+version: '2'
+services:
+  webapp:
+    entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /webodm/wait-for-it.sh db:5432 -- /webodm/start.sh --create-default-pnode --setup-devenv"
+    volumes:
+      - .:/webodm

start.sh

@@ -34,8 +34,25 @@ if [ $? -ne 0 ]; then
     exit
 fi
 
-echo Building asssets...
-webpack
+if [ $1 = "--setup-devenv" ] || [ $2 = "--setup-devenv" ]; then
+    echo Setup git modules...
+
+    git submodule init 
+    git submodule update
+    
+    echo Setup npm dependencies...
+    npm install
+    cd nodeodm/external/node-OpenDroneMap
+    npm install
+    cd /webodm
+
+    echo Setup webpack watch...
+    webpack --watch &
+else
+    # Normal startup
+    echo Building asssets...
+    webpack
+fi
 
 echo Running migrations
 python manage.py migrate