Get ready for Github workflows

.github/workflows/publish-maven-central.yml

@@ -0,0 +1,36 @@
+# This is a basic workflow to help you get started with Actions
+
+name: Publish to Maven Central
+
+# Triggers the workflow on manually
+on:
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+    - uses: actions/checkout@v2
+
+    # Runs a single command using the runners shell
+    - name: Install gpg secret key
+      run: |
+        cat <(echo -e "${{ secrets.GPG_SECRET_KEY }}") | gpg --batch --import
+        gpg --export-secret-keys >~/.gnupg/secring.gpg
+        gpg --list-secret-keys --keyid-format LONG
+
+    - name: Publish release
+      env:
+        SONATYPE_USER: ${{ secrets.SONATYPE_USER }}
+        SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
+      run: |
+        ./gradlew -Psigning.secretKeyRingFile=.gnupg/secring.gpg -Psigning.password="" -P signing.keyId=${{ secrets.GPG_KEY_ID }} publish
+
+# Next, go to https://oss.sonatype.org/index.html#stagingRepositories, select the repo, "Close" it and then
+# "Release" it

build.gradle.kts

@@ -136,8 +136,8 @@ sonarqube {
 //
 
 bintray {
-    user = project.findProperty("bintrayUser")?.toString()
-    key = project.findProperty("bintrayApiKey")?.toString()
+    user = project.findProperty("bintrayUser")?.toString() ?: System.getenv("BINTRAY_USER")
+    key = project.findProperty("bintrayApiKey")?.toString() ?: System.getenv("BINTRAY_API_KEY")
     dryRun = false
     publish = true
 
@@ -225,8 +225,8 @@ with(publishing) {
                 uri("https://oss.sonatype.org/content/repositories/snapshots/") else
                 uri("https://oss.sonatype.org/service/local/staging/deploy/maven2/")
             credentials {
-                username = project.findProperty("sonatypeUser") as? String
-                password = project.findProperty("sonatypePassword") as? String
+                username = project.findProperty("sonatypeUser")?.toString() ?: System.getenv("SONATYPE_USER")
+                password = project.findProperty("sonatypePassword")?.toString() ?: System.getenv("SONATYPE_PASSWORD")
             }
         }
         maven {