Auto-deploy for docs to gh-pages

pom.xml

@@ -23,6 +23,7 @@
         <build-plugin.coveralls.version>4.0.0</build-plugin.coveralls.version>
         <build-plugin.gpg.version>1.6</build-plugin.gpg.version>
         <build-plugin.asciidoctor.version>1.5.2</build-plugin.asciidoctor.version>
+        <build-plugin.exec.version>1.4.0</build-plugin.exec.version>
     </properties>
     <modules>
         <module>spring-boot-admin-server</module>
@@ -101,6 +102,11 @@
                     <artifactId>asciidoctor-maven-plugin</artifactId>
                     <version>${build-plugin.asciidoctor.version}</version>
                 </plugin>
+                <plugin>
+                    <groupId>org.codehaus.mojo</groupId>
+                    <artifactId>exec-maven-plugin</artifactId>
+                    <version>${build-plugin.exec.version}</version>
+                </plugin>
             </plugins>
         </pluginManagement>
     </build>

spring-boot-admin-docs/deploy-gh-pages.sh

+#!/bin/bash
+##
+# Makes a shallow clone for gh-pages branch, copies the new docs, adds, commits and pushes 'em.
+#
+# Requires the environment variable GH_TOKEN to be set to a valid GitHub-api-token.
+#
+# Usage:
+# ./deploy-gh-pages.sh <project-version>
+#
+# project-version    The version folder to use in gh-pages
+##
+set -o errexit -o nounset
+
+PROJECT_VERSION=$1
+
+GH_URL="https://${GH_TOKEN}@github.com/codecentric/spring-boot-admin.git"
+TEMPDIR="$(mktemp -d /tmp/gh-pages.XXX)"
+
+echo "Cloning gh-pages branch..."
+git clone --branch gh-pages --single-branch --depth 1 --config user.name="Johannes Edmeier" --config user.email="johannes.edmeier@gmail.com" "$GH_URL" "$TEMPDIR"
+
+if [[ -d "$TEMPDIR"/"${PROJECT_VERSION}-SNAPSHOT" ]]; then
+   echo "Removing ${PROJECT_VERSION}-SNAPSHOT..."
+   rm -rf "$TEMPDIR"/"${PROJECT_VERSION}-SNAPSHOT"
+fi
+
+echo "Copying new docs..."
+mkdir -p "$TEMPDIR"/"${PROJECT_VERSION}"
+cp -r target/generated-docs/* "$TEMPDIR"/"${PROJECT_VERSION}"/
+
+pushd "$TEMPDIR" >/dev/null
+git add .
+
+if git diff-index --quiet HEAD; then
+  echo "No changes detected."
+else
+  echo "Commit changes..."
+  git commit --message "Docs for ${PROJECT_VERSION}"
+  echo "Pushing gh-pages..."
+  git push origin gh-pages
+fi
+
+popd >/dev/null
+
+rm -rf "$TEMPDIR"
+exit 0 

spring-boot-admin-docs/pom.xml

@@ -37,6 +37,25 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>deploy-gh-pages</id>
+            <phase>deploy</phase>
+            <goals>
+              <goal>exec</goal>
+            </goals>
+            <configuration>
+                <executable>./deploy-gh-pages.sh</executable>
+                <arguments>
+                    <argument>${project.version}</argument>
+                </arguments>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>
 </project>