Migrate Documentation to Antora.

Closes #810

Author: mp911de

.github/workflows/docs-build.yml

@@ -0,0 +1,32 @@
+name: Deploy Docs Dispatch
+on:
+  push:
+    branches-ignore: [ gh-pages ]
+    tags: '**'
+  repository_dispatch:
+    types: request-build-reference # legacy
+  #schedule:
+  #- cron: '0 10 * * *' # Once per day at 10am UTC
+  workflow_dispatch:
+permissions:
+  actions: write
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    if: github.repository_owner == 'spring-projects'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          ref: docs-build
+          fetch-depth: 1
+      - name: Dispatch (partial build)
+        if: github.ref_type == 'branch'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: gh workflow run docs-build.yml -r $(git rev-parse --abbrev-ref HEAD) -f build-refname=${{ github.ref_name }}
+      - name: Dispatch (full build)
+        if: github.ref_type == 'tag'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: gh workflow run docs-build.yml -r $(git rev-parse --abbrev-ref HEAD)

.gitignore

@@ -21,3 +21,8 @@ release.properties
 /vault/
 download/
 work/
+
+node
+node_modules
+package.json
+package-lock.json

pom.xml

@@ -18,6 +18,7 @@
 	</modules>
 
 	<properties>
+		<antora.version>0.0.3</antora.version>
 		<assertj-core.version>3.24.2</assertj-core.version>
 		<aws-java-sdk.version>2.18.24</aws-java-sdk.version>
 		<bcpkix-jdk15on.version>1.70</bcpkix-jdk15on.version>
@@ -535,6 +536,13 @@
 					<version>3.11.0</version>
 				</plugin>
 
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-resources-plugin</artifactId>
+					<version>3.3.1</version>
+				</plugin>
+
+
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-jar-plugin</artifactId>