chore(allow-partial-builds.sh): New script to set up build container to do partial builds. (#484)

* Minor Change

* Better user messages

Author: biffgaut

CONTRIBUTING.md

@@ -6,7 +6,6 @@ documentation, we greatly value feedback and contributions from our community.
 Please read through this document before submitting any issues or pull requests to ensure we have all the necessary
 information to effectively respond to your bug report or contribution.
 
-
 ## Reporting Bugs/Feature Requests
 
 We welcome you to use the GitHub issue tracker to report bugs or suggest features.

deployment/allow-partial-builds.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+result=${PWD##*/}          # to assign to a variable
+
+(return 0 2>/dev/null) && sourced=1 || sourced=0
+
+if [ $sourced -ne 1 ]
+then
+  echo 
+  echo
+  echo 'Error - You must run this script with the source directive:'
+  echo 
+  echo '       source ./deployment/allow-partial-builds.sh'
+  echo
+elif [ $result != 'aws-solutions-constructs' ]
+then
+  echo 
+  echo
+  echo 'Error - You must run this script from the aws-solutions-constructs folder.'
+  echo
+else
+  ./deployment/align-version.sh
+  cd source
+  export PATH=$(npm bin):$PATH
+  cd  patterns/@aws-solutions-constructs
+fi