Update release script

Author: mjackson

scripts/release.sh

@@ -1,3 +1,37 @@
-#!/bin/sh
+#!/bin/bash -e
+
+update_version() {
+  echo "$(node -p "p=require('./${1}');p.version='${2}';JSON.stringify(p,null,2)")" > $1
+  echo "Updated ${1} version to ${2}"
+}
+
+current_version=$(node -p "require('./package').version")
+
+printf "Next version (current is $current_version)? "
+read next_version
+
+if ! [[ $next_version =~ ^[0-9]\.[0-9]+\.[0-9](-.+)? ]]; then
+  echo "Version must be a valid semver string i.e. 1.0.2, 2.3.0-beta.1"
+  exit 1
+fi
+
+next_ref="v$next_version"
+
+npm test -- --single-run
+
+update_version 'package.json' $next_version
+update_version 'bower.json' $next_version
+
+node_modules/.bin/changelog -t $next_ref
+
 npm run build-global
-node_modules/.bin/release
+npm run build-npm
+
+git commit -am "Version $next_version"
+
+git tag $next_ref
+git tag latest -f
+
+git push origin master --tags
+
+npm publish build/npm