Fix Stage and Promote release process

This commit contains a few fixes for the CI release process.

The base CI image now installs the `jq` binary as it's
required by the promotion process.

The staging script is fixed to use the correct `sed` syntax
for this Linux container, and only consider Gradle as a build
system. This also changes the staging script to correctly
choose the release version depending on the release type.
This commit also adds a `RELEASE_TYPE` parameter to the state
task.

The project build version is moved to a `gradle.properties`
to align with the stage+promote script.

The promote release script is now executable.

build.gradle

@@ -7,7 +7,6 @@ plugins {
 
 group = 'io.spring.docresources'
 description = 'Spring Documentation Resources'
-version = "0.1.0.BUILD-SNAPSHOT"
 
 node {
 	version = '11.2.0'

ci/images/spring-doc-resources-ci-image/Dockerfile

@@ -1,7 +1,7 @@
 FROM ubuntu:bionic-20181018
 
 RUN apt-get update
-RUN apt-get install --no-install-recommends -y ca-certificates net-tools git curl
+RUN apt-get install --no-install-recommends -y ca-certificates net-tools git curl jq
 RUN rm -rf /var/lib/apt/lists/*
 
 ENV JAVA_HOME /opt/openjdk

ci/scripts/stage.sh

@@ -13,28 +13,34 @@ git clone git-repo stage-git-repo > /dev/null
 pushd stage-git-repo > /dev/null
 
 snapshotVersion=$( awk -F '=' '$1 == "version" { print $2 }' gradle.properties )
-if [[ $RELEASE_TYPE = "RELEASE" ]]; then
-	stageVersion=$( strip_snapshot_suffix $snapshotVersion)
+if [[ $RELEASE_TYPE = "M" ]]; then
+	stageVersion=$( get_next_milestone_release $snapshotVersion)
+	nextVersion=$snapshotVersion
+elif [[ $RELEASE_TYPE = "RC" ]]; then
+	stageVersion=$( get_next_rc_release $snapshotVersion)
+	nextVersion=$snapshotVersion
+elif [[ $RELEASE_TYPE = "RELEASE" ]]; then
+	stageVersion=$( get_next_release $snapshotVersion)
 	nextVersion=$( bump_version_number $snapshotVersion)
 else
 	echo "Unknown release type $RELEASE_TYPE" >&2; exit 1;
 fi
 
 echo "Staging $stageVersion (next version will be $nextVersion)"
-sed -i "" "s/version=$snapshotVersion/version=$stageVersion/" gradle.properties
+sed -i "s/version=$snapshotVersion/version=$stageVersion/" gradle.properties
 
 git config user.name "Spring Buildmaster" > /dev/null
 git config user.email "buildmaster@springframework.org" > /dev/null
-git add pom.xml > /dev/null
+git add gradle.properties > /dev/null
 git commit -m"Release v$stageVersion" > /dev/null
 git tag -a "v$stageVersion" -m"Release v$stageVersion" > /dev/null
 
-./gradlew --no-daemon clean build install -Dmaven.repo.local=${repository}
+./gradlew --no-daemon clean distZip publishToMavenLocal -Dmaven.repo.local=${repository}
 
 git reset --hard HEAD^ > /dev/null
 echo "Setting next development version (v$nextVersion)"
-sed -i "" "s/version=$snapshotVersion/version=$nextVersion/" gradle.properties
-git add . > /dev/null
+sed -i "s/version=$snapshotVersion/version=$nextVersion/" gradle.properties
+git add gradle.properties > /dev/null
 git commit -m"Next development version (v$nextVersion)" > /dev/null
 
 echo "DONE"

ci/tasks/stage.yml

@@ -8,5 +8,7 @@ outputs:
 caches:
 - path: maven
 - path: gradle
+params:
+  RELEASE_TYPE:
 run:
   path: git-repo/ci/scripts/stage.sh

gradle.properties

@@ -0,0 +1 @@
+version=0.1.0.BUILD-SNAPSHOT