Include github build script

Author: oliemansm

github-build.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+set -ev
+
+getVersion() {
+  ./gradlew properties -q | grep "version:" | grep -v "kotlin_version:" | awk '{print $2}' | tr -d '[:space:]'
+}
+
+removeSnapshots() {
+  sed -i 's/-SNAPSHOT//' gradle.properties
+}
+
+commitRelease() {
+  local APP_VERSION=$(getVersion)
+  git commit -a -m "Update version for release"
+  git tag -a "v${APP_VERSION}" -m "Tag release version"
+}
+
+bumpVersion() {
+  echo "Bump version number"
+  local APP_VERSION=$(getVersion | xargs)
+  local SEMANTIC_REGEX='^([0-9]+)\.([0-9]+)(\.([0-9]+))?$'
+  if [[ ${APP_VERSION} =~ ${SEMANTIC_REGEX} ]]; then
+    if [[ ${BASH_REMATCH[4]} ]]; then
+      nextVersion=$((BASH_REMATCH[4] + 1))
+      nextVersion="${BASH_REMATCH[1]}.${BASH_REMATCH[2]}.${nextVersion}-SNAPSHOT"
+    else
+      nextVersion=$((BASH_REMATCH[2] + 1))
+      nextVersion="${BASH_REMATCH[1]}.${nextVersion}-SNAPSHOT"
+    fi
+
+    echo "Next version: ${nextVersion}"
+    sed -i -E "s/^version(\s)?=.*/version=${nextVersion}/" gradle.properties
+  else
+    echo "No semantic version and therefore cannot publish to maven repository: '${APP_VERSION}'"
+  fi
+}
+
+commitNextVersion() {
+  git commit -a -m "Update version for release"
+}
+
+git config --global user.email "actions@github.com"
+git config --global user.name "GitHub Actions"
+
+echo "Deploying release to Bintray"
+removeSnapshots
+
+./gradlew clean assemble && ./gradlew bintrayUpload -x check --info
+
+commitRelease
+bumpVersion
+commitNextVersion
+git push --follow-tags