Prepare release workflow

Author: oliemansm

.github/workflows/release.yml

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+name: "Publish release"
+on: [workflow_dispatch]
+
+jobs:
+  validation:
+    name: Gradle Wrapper Validation
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: gradle/wrapper-validation-action@v1
+  test:
+    name: Test run
+    needs: validation
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup Java
+        uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - name: Cache Gradle
+        uses: actions/cache@v2
+        env:
+          java-version: 8
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-${{ env.java-version }}-gradle-${{ hashFiles('**/*.gradle*') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ env.java-version }}-gradle-
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+      - name: Gradle Check
+        run: ./gradlew --info check
+  build:
+    name: Publish snapshot
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup Java
+        uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - name: Cache Gradle
+        uses: actions/cache@v2
+        env:
+          java-version: 8
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-${{ env.java-version }}-gradle-${{ hashFiles('**/*.gradle*') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ env.java-version }}-gradle-
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+      - name: Publish release
+        env:
+          BINTRAY_USER: ${{ secrets.BINTRAY_USER }}
+          BINTRAY_PASS: ${{ secrets.BINTRAY_PASSWORD }}
+        run: bash github-build.sh

github-build.sh

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+#!/bin/bash
+set -ev
+
+#saveGitCredentials() {
+#    cat >$HOME/.netrc <<EOL
+#machine github.com
+#login ${GITHUB_USERNAME}
+#password ${GITHUB_TOKEN}
+#
+#machine api.github.com
+#login ${GITHUB_USERNAME}
+#password ${GITHUB_TOKEN}
+#EOL
+#    chmod 600 $HOME/.netrc
+#}
+
+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"
+}
+
+echo "Deploying release to Bintray"
+removeSnapshots
+
+./gradlew clean assemble && ./gradlew check --info #&& ./gradlew bintrayUpload -x check --info
+
+commitRelease
+bumpVersion
+commitNextVersion
+git push --follow-tags