build: travis commits the snapshot updates (#142)

* build: travis commits the snapshot updates

* build: add echos

* build: remove echo

* build: Upgrade to next snapshot (Build )

* build: update script

* revert pom change

.gitignore

@@ -1,4 +1,5 @@
 *.iml
 .idea
 .DS_Store
-target
+target
+pom.xml.versionsBackup

.travis.yml

@@ -33,6 +33,9 @@ deploy:
       tags: true
       jdk: oraclejdk8
 
+after_deploy:
+  - .travis/update-version.sh
+
 after_success:
   - bash <(curl -s https://codecov.io/bash)
 

.travis/deploy.sh

@@ -1,5 +1,5 @@
 #!/bin/bash -x
-cd `dirname $0`/.. 
+cd `dirname $0`/..
 
 if [[ -z "$SONATYPE_USERNAME" ]]
 then
@@ -17,7 +17,7 @@ if [[ ! -z "$TRAVIS_TAG" ]]
 then
     SKIP_GPG_SIGN=false
     echo "travis tag is set -> updating pom.xml <version> attribute to $TRAVIS_TAG"
-    mvn --settings .travis/settings.xml org.codehaus.mojo:versions-maven-plugin:2.1:set -DnewVersion=$TRAVIS_TAG 1>/dev/null 2>/dev/null
+    mvn --settings .travis/settings.xml org.codehaus.mojo:versions-maven-plugin:2.7:set -DnewVersion=$TRAVIS_TAG 1>/dev/null 2>/dev/null
 else
     SKIP_GPG_SIGN=true
     echo "no travis tag is set, hence keeping the snapshot version in pom.xml"

.travis/update-version.sh

@@ -0,0 +1,84 @@
+#!/usr/bin/env bash
+
+cd `dirname $0`/..
+
+setup_git() {
+  git config --global user.email "[email protected]"
+  git config --global user.name "Travis CI"
+}
+
+update_version() {
+
+    exampleProperty="graphql-kotlin.version"
+
+    # Push the new tag with `-SNAPSHOT` as the current version
+    mvn --settings .travis/settings.xml org.codehaus.mojo:versions-maven-plugin:2.7:set -DnewVersion="${TRAVIS_TAG}-SNAPSHOT"
+
+    # Increment the patch version
+    mvn --settings .travis/settings.xml org.codehaus.mojo:versions-maven-plugin:2.7:set -DnextSnapshot=true
+
+    # Pull the value from the pom
+    NEW_VERSION=$(mvn --settings .travis/settings.xml help:evaluate -Dexpression=project.version -q -DforceStdout)
+
+    # Update the example version
+    cd example/
+    mvn --settings ../.travis/settings.xml org.codehaus.mojo:versions-maven-plugin:2.7:set-property -Dproperty=${exampleProperty} -DnewVersion=${NEW_VERSION}
+    cd ../
+}
+
+commit_files() {
+
+  # Use the version as the branch name
+  git checkout -b ${NEW_VERSION}
+
+  # Stage the modified files
+  git add pom.xml example/pom.xml
+
+  # Create a new commit with a custom build message and Travis build number for reference
+  git commit -m "travis: Upgrade to next snapshot (Build $TRAVIS_BUILD_NUMBER)"
+}
+
+upload_files() {
+
+  tokenLink="https://${GITHUB_TOKEN}@github.com/ExpediaDotCom/graphql-kotlin.git"
+
+  # Add new "origin" with access token in the git URL for authentication
+  git remote add token-origin ${tokenLink} > /dev/null 2>&1
+
+  # Push changes to the new branch
+  git push --quiet --set-upstream token-origin ${NEW_VERSION}
+
+  # Remove the origin to hide the token
+  git remote rm token-origin > /dev/null 2>&1
+}
+
+if [[ -z "$TRAVIS_TAG" ]]
+then
+    echo "ERROR! Please set TRAVIS_TAG environment variable"
+    exit 1
+fi
+
+if [[ -z "$GITHUB_TOKEN" ]]
+then
+    echo "ERROR! Please set GITHUB_TOKEN environment variable"
+    exit 1
+fi
+
+NEW_VERSION=""
+
+setup_git
+
+update_version
+
+commit_files
+
+# Attempt to push to git only if "git commit" succeeded
+if [[ $? -eq 0 ]]; then
+  echo "Uploading to GitHub"
+  upload_files
+else
+  echo "Nothing to do"
+fi
+
+
+