#101 Create a script that alerts devs (#109)

Fixes #101

.travis.yml

@@ -29,12 +29,12 @@ matrix:
     - fast_finish: true
 
 before_install:
-  - npm i -g npm@5
+  - npm i -g npm@6
   - if [[ $TRAVIS_OS_NAME == "osx" ]]; then brew install graphicsmagick; fi
 
 install:
   - PATH="`npm bin`:`npm bin -g`:$PATH"
-  - npm install -g npm@5
+  - npm install -g npm@6
   - node --version
   - npm --version
 

README.md

@@ -81,17 +81,13 @@ If you get an `error` status for any of the servers please verify that you insta
 ### Dependencies
 > Required developer dependencies:
 [Git](http://git-scm.com/book/en/v2/Getting-Started-Installing-Git),
-[node.js **8+**, with npm 5](http://nodejs.org/),
+[node.js **8+** with npm 6](http://nodejs.org/),
 [Python 2.6+](https://www.python.org/),
 [Java 8+](https://www.java.com/en/download/),
-[Redis](http://redis.io/),
 [libgmp](https://gmplib.org/),
 [graphicsmagick](http://www.graphicsmagick.org/),
-[memcached](https://memcached.org/),
 [docker](https://docs.docker.com/).
 
-**Note:** Please use Node.js 8+.
-
 ##### OS X (with [Brew](http://brew.sh/)):
 
 [Xcode and OS X Command Line Tools are required](https://developer.apple.com/xcode/), install it and verify that command line tools installed:
@@ -100,15 +96,14 @@ xcode-select --install
 ```
 then:
 ```
-brew install gmp redis graphicsmagick memcached
 sudo easy_install pip && sudo pip install virtualenv
 ```
 [Install Docker for Mac](https://docs.docker.com/docker-for-mac/install/)
 
 ##### Ubuntu:
 ```
-sudo apt-get install build-essential git-core libgmp3-dev graphicsmagick redis-server python-virtualenv
-python-dev memcached docker-ce
+sudo apt-get install build-essential git-core libgmp3-dev graphicsmagick  python-virtualenv
+python-dev docker-ce
 ```
 Docker commands require sudo, to avoid it, follow steps below:  
 1. Add the docker group if it doesn't already exist
@@ -129,9 +124,6 @@ sudo service docker restart
 > NOTE: If you are experienced with Node.js: Use [nvm](https://github.com/creationix/nvm) to force node 8
 just for `fxa-local-dev` using `nvm use 8`. (Install it first with `nvm install 8`)
 
-##### OS X
-Use this if you do not rely on other node.js programs on your system: Find the latest Node 8 LTS `.pkg` download at [nodejs.org/en/download/](https://nodejs.org/en/download/) and install it.
-
 ##### Ubuntu / Debian:
 
 ```

_scripts/check.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+if [[ $(which node) && $(node --version) ]]; then
+  node _scripts/check_node_version.js
+else
+  echo "install node to continue installation"
+  echo "https://nodejs.org"
+  exit 1
+fi
+
+if [[ $(which docker) && $(docker --version) ]]; then
+  docker=y
+else
+  docker=n
+fi
+
+os="$(uname -a | cut -f 1 -d ' ')"
+if [ "$os" = "Darwin" ]; then
+    if [ "$docker" = "n" ]; then
+      echo "install docker to continue installation"
+      echo "https://docs.docker.com/docker-for-mac/install/"
+      exit 1
+    fi
+
+    if [[ $(which brew) && $(brew --version) ]]; then
+      if [[ $(brew ls --versions gmp) ]]; then
+        echo "gmp is installed"
+      else
+        brew install gmp
+      fi
+      if [[ $(brew ls --versions graphicsmagick) ]]; then
+        echo "graphicsmagick is installed"
+      else
+        brew install graphicsmagick
+      fi
+    else
+      echo "install homebrew to continue installation"
+      echo "https://brew.sh/"
+      exit 1
+    fi
+elif [ "$os" = "Linux" ]; then
+    if [ "$docker" = "n" ]; then
+      echo "install docker to continue installation using the steps below:"
+      echo "sudo apt-get install docker-ce"
+      echo "sudo groupadd docker"
+      echo "sudo gpasswd -a $USER docker"
+      echo "sudo service docker restart"
+    fi
+fi

_scripts/check_node_version.js

@@ -0,0 +1,33 @@
+const check = require("check-node-version");
+
+check(
+    { node: ">= 8", npm: ">= 6" },
+    (error, results) => {
+        if (error) {
+            console.error(error);
+            return;
+        }
+
+        if (results.isSatisfied) {
+            console.log("Node and nvm version ok");
+            return;
+        }
+
+        console.error("Some package version(s) failed!");
+
+        for (const packageName of Object.keys(results.versions)) {
+            if (!results.versions[packageName].isSatisfied) {
+                if(packageName === 'npm')
+                  console.error(`Npm version must be > 6 . Run the following command to upgrade npm "npm i -g npm@6"`);
+                else if(packageName === 'node')
+                  console.error(`Node version must be > 8`);
+                  if(process.platform === 'darwin')
+                    console.log("Use this if you do not rely on other node.js programs on your system: Find the latest Node 8 LTS .pkg download at nodejs.org/en/download/ and install it.")
+                else
+                  console.error(`Missing ${packageName}.`);
+
+                process.exit(1);
+            }
+        }
+    }
+);

_scripts/install_all.sh

@@ -1,4 +1,5 @@
 #!/bin/sh -ex
+_scripts/check.sh
 
 # Set ulimit, need it for npm
 ulimit -S -n 2048 || echo "Setting ulimit failed"
@@ -48,6 +49,8 @@ cd fxa-basket-proxy; npm i; cd ..
 
 cd 123done; npm i; cd ..
 
+docker pull memcached
+
 docker pull mozilla/syncserver
 
 docker pull pafortin/goaws

_scripts/memcached.sh

@@ -0,0 +1 @@
+docker run --rm --name memcache memcached

mysql_servers.json

@@ -174,7 +174,7 @@
     },
     {
       "name": "memcached PORT 11211",
-      "script": "_scripts/memcached.js",
+      "script": "_scripts/memcached.sh",
       "max_restarts": "1",
       "min_uptime": "2m"
     },
@@ -186,4 +186,4 @@
       "autorestart": false
     }
   ]
-}
+}

package.json

@@ -26,13 +26,13 @@
   "dependencies": {
     "bluebird": "2.10.2",
     "chalk": "1.1.1",
+    "check-node-version": "^3.2.0",
     "foxfire": "1.0.1",
     "fxa-dev-launcher": "vladikoff/fxa-dev-launcher",
     "internal-ip": "1.2.0",
     "lodash": "4.16.2",
     "minimist": "1.1.1",
     "pm2": "2.9.3",
-    "redis-server": "1.1.0",
     "replace-in-file": "0.2.1"
   }
 }

servers.json

@@ -153,7 +153,7 @@
     },
     {
       "name": "memcached PORT 11211",
-      "script": "_scripts/memcached.js",
+      "script": "_scripts/memcached.sh",
       "max_restarts": "1",
       "min_uptime": "2m"
     },