Add docker support for maven release

Author: kmozsi

Dockerfile

@@ -0,0 +1,36 @@
+FROM openjdk:8-jdk-alpine
+
+ENV VERSION=
+ENV NEXT_VERSION=
+ENV GPG_PASSPHRASE=
+ENV GIT_USERNAME=
+ENV GIT_SECRET=
+ARG GIT_EMAIL=
+ARG FULL_NAME=
+
+ARG MAVEN_VERSION=3.3.9
+ARG USER_HOME_DIR="/root"
+ENV MAVEN_HOME /usr/share/maven
+ENV MAVEN_CONFIG "$USER_HOME_DIR/.m2"
+# speed up Maven JVM a bit
+ENV MAVEN_OPTS="-XX:+TieredCompilation -XX:TieredStopAtLevel=1"
+
+VOLUME /gpg
+VOLUME /maven
+
+COPY maven-release.sh /maven-release.sh
+
+# Install Maven, Git and gpg
+RUN apk add --no-cache curl tar bash git gnupg
+RUN mkdir -p /usr/share/maven && \
+	curl -fsSL http://apache.osuosl.org/maven/maven-3/$MAVEN_VERSION/binaries/apache-maven-$MAVEN_VERSION-bin.tar.gz | tar -xzC /usr/share/maven --strip-components=1 && \
+ln -s /usr/share/maven/bin/mvn /usr/bin/mvn
+RUN git config --global user.email ${GIT_EMAIL} && \
+ 	git config --global user.name ${FULL_NAME}
+
+# Configure gpg
+RUN export GPG_TTY=/dev/console
+RUN export GPG_OPTS='--pinentry-mode loopback'
+
+RUN ["chmod", "+x", "/maven-release.sh"]
+ENTRYPOINT /maven-release.sh

maven-release-snapshot.sh

@@ -1,38 +1,23 @@
 #!/bin/sh
 
-# Usage: ./maven-release.sh v2.0 2.1-SNAPSHOT 2.0
-
 branch_to_release="master"
+set -e
+
+echo "Set private key..."
+cp -vr /gpg ~/.gnupg
+echo "pinentry-mode loopback" > ~/.gnupg/gpg.conf
+cp -vpr /maven ~/.m2
+
+echo "Cloning convertapi-java..."
+git clone https://${GIT_USERNAME}:${GIT_SECRET}@github.com/ConvertAPI/convertapi-java.git
+cd convertapi-java
 
 echo "Switching to the release branch..."
 git fetch
 git checkout $branch_to_release
 
-echo "Pulling changes..."
-git pull --ff-only
-
-echo "Push commits..."
-git push
-
-echo "Revert uncommitted changes..."
-git checkout .
-
-echo "Cleaning..."
-mvn clean
-
 echo "Preparing release..."
-if [ $# -eq 1 ]
-then
-	echo "\n\n" | mvn release:prepare -Dtag=$1 -Dresume=false
-elif [ $# -eq 2 ] 
-then
-	echo "\n" | mvn release:prepare -DdevelopmentVersion=$2 -Dtag=$1 -Dresume=false
-elif [ $# -eq 3 ] 
-then
-	mvn release:prepare -DreleaseVersion=$3 -DdevelopmentVersion=$2 -Dtag=$1 -Dresume=false
-else
-	echo "\n\n\n" | mvn release:prepare -Dresume=false
-fi
+mvn release:prepare -DreleaseVersion=${VERSION} -DdevelopmentVersion=${NEXT_VERSION} -Dtag=v${VERSION} -Dresume=false -Darguments=-Dgpg.passphrase=${GPG_PASSPHRASE}
 
 echo "Performing release..."
 mvn release:perform
@@ -42,3 +27,7 @@ git push --tags
 
 echo "Push release commits..."
 git push
+
+echo "-------------------------------------------------------------"
+echo "SUCCESSFULLY released ${VERSION} to Maven Central repository."
+echo "-------------------------------------------------------------"