New scripts to update version in pom.xml and README docs.

Author: Ajay Kannan

utilities/after_success.sh

@@ -27,6 +27,10 @@ if [ "${TRAVIS_JDK_VERSION}" == "oraclejdk7" -a "${TRAVIS_BRANCH}" == "master" -
         git commit -m "Added a new site for version $SITE_VERSION and updated the root directory's redirect."
         git config --global push.default simple
         git push --quiet "https://${CI_DEPLOY_USERNAME}:${CI_DEPLOY_PASSWORD}@github.com/GoogleCloudPlatform/gcloud-java.git" > /dev/null 2>&1
+
+        # Update versions README and pom.xml in master branch
+        cd ..
+        utilities/update_docs_version.sh
     else
         mvn deploy -DskipTests=true -Dgpg.skip=true --settings target/travis/settings.xml
     fi

utilities/update_docs_version.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# This script updates the READMEs with the latest non-SNAPSHOT version number.
+# Example: Suppose that before running this script, the pom.xml reads 7.8.9.  This script will replace 
+# all occurrences of <version>#.#.#</version> with <version>7.8.9</version> in the README files.
+
+# Get the current maven project version.
+RELEASED_VERSION=$(mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate -Dexpression=project.version | grep -Ev '(^\[|\w+:)')
+
+if [ "${RELEASED_VERSION##*-}" != "SNAPSHOT" ]; then
+    echo "Changing version to $RELEASED_VERSION in README files"
+    # Get list of directories for which README.md must be updated
+    module_folders=($(find . -maxdepth 1 -name 'gcloud-java*' -type d))
+    module_folders+=(.)
+    for item in ${module_folders[*]}
+    do
+        sed -ri "s/<version>[0-9][0-9]*.[0-9][0-9]*.[0-9][0-9]*<\/version>/<version>${RELEASED_VERSION}<\/version>/g" ${item}/README.md    
+    done
+    
+    git add README.md */README.md
+    git config --global user.name "travis-ci"
+    git config --global user.email "[email protected]"
+    git commit -m "Updating version in README files."
+    git push --quiet "https://${CI_DEPLOY_USERNAME}:${CI_DEPLOY_PASSWORD}@github.com/GoogleCloudPlatform/gcloud-java.git" HEAD:master > /dev/null 2>&1
+fi

utilities/update_pom_version.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# This script updates the pom.xml files to the next version number.
+# This script is meant to be run manually (not by Travis)
+
+# Argument (optional):
+#   $1: new version number for pom.xml files (do not include -SNAPSHOT, that is done automatically).
+#   Providing no argument defaults to incrementing revision number from x.y.z to x.y.z+1-SNAPSHOT
+
+# Get the previous maven project version.
+CURRENT_VERSION=$(mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate -Dexpression=project.version | grep -Ev '(^\[|\w+:)')
+# Get list of directories for which pom.xml must be updated
+module_folders=($(find . -maxdepth 1 -name 'gcloud-java*' -type d))
+module_folders+=(.)
+
+if [ "${CURRENT_VERSION##*-}" != "SNAPSHOT" ]; then
+    # Update x.y.z to x.y.z+1-SNAPSHOT by default, or to a.b.c-SNAPSHOT, where a.b.c is given by user.
+    DEFAULT_UPDATE="${CURRENT_VERSION%.*}.$((${CURRENT_VERSION##*.}+1))"
+    NEW_SNAPSHOT_VERSION=${1:-$DEFAULT_UPDATE}-SNAPSHOT
+    echo "Changing version from $CURRENT_VERSION to $NEW_SNAPSHOT_VERSION in pom.xml files"
+    for item in ${module_folders[*]}
+    do
+        sed -i "0,/<version>$CURRENT_VERSION/s/<version>$CURRENT_VERSION/<version>$NEW_SNAPSHOT_VERSION/" ${item}/pom.xml
+    done
+else
+    # Update from x.y.z-SNAPSHOT to x.y.z
+    NEW_RELEASE_VERSION=${CURRENT_VERSION%%-*}
+    echo "Changing version from $CURRENT_VERSION to $NEW_RELEASE_VERSION in pom.xml files"
+    for item in ${module_folders[*]}
+    do
+        sed -i "0,/<version>$CURRENT_VERSION/s/<version>$CURRENT_VERSION/<version>$NEW_RELEASE_VERSION/" ${item}/pom.xml
+    done
+fi