release.sh in killbill-paypal-express-1.8.1 vs release.sh in killbill-paypal-express-2.0.0

@@ -1,7 +1,10 @@
 set -e
 
+BUNDLE=${BUNDLE-"bundle exec"}
+MVN=${MVN-"mvn"}
+
 if [ 'GNU' != "$(tar --help | grep GNU | head -1 | awk '{print $1}')" ]; then
   echo 'Unable to release: make sure to use GNU tar'
   exit 1
 fi
 
@@ -12,30 +15,47 @@
   echo 'Unable to release: make sure to use JRuby'
   exit 1
 fi
 
 VERSION=`grep -E '<version>([0-9]+\.[0-9]+\.[0-9]+)</version>' pom.xml | sed 's/[\t \n]*<version>\(.*\)<\/version>[\t \n]*/\1/'`
-if [ "$VERSION" != "$(cat $PWD/VERSION)" ]; then
+if [[ -z "$NO_RELEASE" && "$VERSION" != "$(cat $PWD/VERSION)" ]]; then
   echo 'Unable to release: make sure the versions in pom.xml and VERSION match'
   exit 1
 fi
 
 echo 'Cleaning up'
-rake killbill:clean ; rake build
+$BUNDLE rake killbill:clean
 
-echo 'Pushing the gem to Rubygems'
-rake release
+echo 'Building gem'
+$BUNDLE rake build
 
+if [[ -z "$NO_RELEASE" ]]; then
+  echo 'Pushing the gem to Rubygems'
+  $BUNDLE rake release
+fi
+
 echo 'Building artifact'
-rake killbill:package
+$BUNDLE rake killbill:package
 
 ARTIFACT="$PWD/pkg/killbill-paypal-express-$VERSION.tar.gz"
 echo "Pushing $ARTIFACT to Maven Central"
-mvn gpg:sign-and-deploy-file \
-    -DgroupId=org.kill-bill.billing.plugin.ruby \
-    -DartifactId=paypal-express-plugin \
-    -Dversion=$VERSION \
-    -Dpackaging=tar.gz \
-    -DrepositoryId=ossrh-releases \
-    -Durl=https://oss.sonatype.org/service/local/staging/deploy/maven2/ \
-    -Dfile=$ARTIFACT \
-    -DpomFile=pom.xml
+
+if [[ -z "$NO_RELEASE" ]]; then
+  GOAL=gpg:sign-and-deploy-file
+  REPOSITORY_ID=ossrh-releases
+  URL=https://oss.sonatype.org/service/local/staging/deploy/maven2/
+else
+  GOAL=deploy:deploy-file
+  REPOSITORY_ID=sonatype-nexus-snapshots
+  URL=https://oss.sonatype.org/content/repositories/snapshots/
+  VERSION="$VERSION-SNAPSHOT"
+fi
+
+$MVN $GOAL \
+     -DgroupId=org.kill-bill.billing.plugin.ruby \
+     -DartifactId=paypal-express-plugin \
+     -Dversion=$VERSION \
+     -Dpackaging=tar.gz \
+     -DrepositoryId=$REPOSITORY_ID \
+     -Durl=$URL \
+     -Dfile=$ARTIFACT \
+     -DpomFile=pom.xml