Migrate build system to gradle

.github/workflows/cd.yml

@@ -6,7 +6,7 @@ on:
       - '*'
 
 env:
-  MAVEN_OPTS: -Dhttp.keepAlive=false -Dmaven.wagon.http.pool=false -Dmaven.wagon.http.retryHandler.class=standard -Dmaven.wagon.http.retryHandler.count=3
+  GRADLE_OPTS: -Dhttp.keepAlive=false
 
 jobs:
   build:
@@ -22,22 +22,25 @@ jobs:
     - name: Checkout security
       uses: actions/checkout@v2
 
-    - name: Cache Maven packages
-      uses: actions/cache@v1
+    - name: Cache Gradle packages
+      uses: actions/cache@v2
       with:
-        path: ~/.m2/repository
-        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-        restore-keys: ${{ runner.os }}-m2
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
 
     - name: Build
       run: |
-        mvn -B clean package -Padvanced -DskipTests
-        artifact_zip=`ls $(pwd)/target/releases/opensearch-security-*.zip | grep -v admin-standalone`
-        ./gradlew build buildDeb buildRpm --no-daemon -ParchivePath=$artifact_zip -Dbuild.snapshot=false
+        ./gradlew clean build -Dbuild.snapshot=false -x test
+        artifact_zip=`ls $(pwd)/build/distributions/opensearch-security-*.zip | grep -v admin-standalone`
+        ./gradlew build buildDeb buildRpm -ParchivePath=$artifact_zip -Dbuild.snapshot=false -x test
         mkdir artifacts
         cp $artifact_zip artifacts/
-        cp gradle-build/distributions/*.deb artifacts/
-        cp gradle-build/distributions/*.rpm artifacts/
+        cp build/distributions/*.deb artifacts/
+        cp build/distributions/*.rpm artifacts/
         zip -r artifacts.zip artifacts
         echo "TAG_VERSION=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
 

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ on:
       - opendistro-*
 
 env:
-  MAVEN_OPTS: -Dhttp.keepAlive=false -Dmaven.wagon.http.pool=false -Dmaven.wagon.http.retryHandler.class=standard -Dmaven.wagon.http.retryHandler.count=3
+  GRADLE_OPTS: -Dhttp.keepAlive=false
 
 jobs:
   build:
@@ -36,24 +36,28 @@ jobs:
       with:
         languages: java
 
-    - name: Cache Maven packages
-      uses: actions/cache@v1
+    - name: Cache Gradle packages
+      uses: actions/cache@v2
       with:
-        path: ~/.m2
-        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-        restore-keys: ${{ runner.os }}-m2
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
+
 
     - name: Checkstyle
-      run: mvn -B checkstyle:checkstyle
+      run: ./gradlew clean checkstyleMain checkstyleTest
 
     - name: Package
-      run: mvn -B clean package -Padvanced -DskipTests
+      run: ./gradlew clean build -Dbuild.snapshot=false -x test
 
     - name: Perform CodeQL Analysis
       uses: github/codeql-action/analyze@v1
 
     - name: Test
-      run: OPENDISTRO_SECURITY_TEST_OPENSSL_OPT=true mvn -B test
+      run: OPENDISTRO_SECURITY_TEST_OPENSSL_OPT=true ./gradlew test
 
     - name: Coverage
       uses: codecov/codecov-action@v1
@@ -64,4 +68,4 @@ jobs:
       uses: actions/upload-artifact@v1
       with:
         name: artifacts
-        path: target/releases/
+        path: build/distributions/

DEVELOPER_GUIDE.md

@@ -35,14 +35,14 @@ The `curl localhost:9200` call from before should also succeed now. Kill the ser
 First create a fork of this repo and clone it locally. Changing into the directory of the newly cloned repository, run the following to build the project:
 
 ```bash
-mvn -B package -Padvanced -DskipTests
+./gradlew clean assemble
 ```
 
 Install the built plugin into the OpenSearch server:
 
 ```bash
 export OPENSEARCH_SECURITY_HOME=$OPENSEARCH_HOME/plugins/opensearch-security
-cp target/releases/opensearch-security-1.3.0.0-SNAPSHOT.zip $OPENSEARCH_SECURITY_HOME
+cp build/distributions/opensearch-security-1.3.0.0-SNAPSHOT.zip $OPENSEARCH_SECURITY_HOME
 cd $OPENSEARCH_SECURITY_HOME
 unzip opensearch-security-1.3.0.0-SNAPSHOT.zip
 rm opensearch-security-1.3.0.0-SNAPSHOT.zip
@@ -115,7 +115,7 @@ curl -XGET https://localhost:9200/_plugins/_security/authinfo -u 'admin:admin' -
 
 ## Using IntelliJ IDEA
 
-Launch IntelliJ IDEA, choose **Import Project**, and select the `pom.xml` file in the root of this package.
+Launch IntelliJ IDEA, choose **Project from Existing Sources**, and select directory with Gradle build script (`build.gradle`).
 
 ## Submitting Changes
 

README.md

@@ -62,22 +62,22 @@ You can also see the [developer guide](https://github.com/opensearch-project/sec
 
 Run all tests:
 ```bash
-mvn clean test
+./gradlew clean test
 ```
 
 Build artifacts (zip, deb, rpm):
 ```bash
-mvn clean package -Padvanced -DskipTests
-artifact_zip=`ls $(pwd)/target/releases/opensearch-security-*.zip | grep -v admin-standalone`
-./gradlew build buildDeb buildRpm --no-daemon -ParchivePath=$artifact_zip -Dbuild.snapshot=false
+./gradlew clean assemble
+artifact_zip=`ls $(pwd)/build/distributions/opensearch-security-*.zip | grep -v admin-standalone`
+./gradlew buildDeb buildRpm -ParchivePath=$artifact_zip
 ```
 
 This produces:
 
 ```
-target/releases/opensearch-security-<VERSION>.zip
-gradle-build/distributions/opensearch-security-<VERSION>.deb
-gradle-build/distributions/opensearch-security-<VERSION>.rpm
+build/releases/opensearch-security-<VERSION>.zip
+build/distributions/opensearch-security-<VERSION>.deb
+build/distributions/opensearch-security-<VERSION>.rpm
 ```
 
 ## Config hot reloading