Add utils/auto-composer-update.sh for updating on cron

utils/auto-composer-update.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+###
+# Runs composer update, commits changes to a new branch,
+# and creates a pull request.
+#
+# Requires git, composer, and hub
+###
+
+date
+
+if [ -z "$WP_CLI_DIR" ]; then
+	echo 'Please set $WP_CLI_DIR'
+	exit 1
+fi
+
+set -ex
+
+cd $WP_CLI_DIR
+
+# Reset WP-CLI directory to baseline
+git checkout -f master
+git pull origin master
+composer install --no-dev
+# Run composer update and capture to untracked log file
+composer update --no-progress --no-dev --no-interaction |& tee vendor/update.log
+UPDATE=$(cat vendor/update.log | col -b)
+
+# We only care to proceed when there are changes
+if [ -z "$(git status -s)" ]; then
+	echo 'No updates available'
+	exit 0;
+fi
+
+# Create a dated branch and commit the changes
+DATE=$(date +%Y-%m-%d)
+BRANCH="update-deps-$DATE"
+git branch -f $BRANCH master
+git checkout $BRANCH
+git add .
+MESSAGE="Update Composer dependencies ($DATE)
+
+\`\`\`
+$UPDATE
+\`\`\`"
+git commit -m "$MESSAGE"
+
+# Push and pull request
+git push origin $BRANCH
+hub pull-request -m "$MESSAGE"