Merge pull request #18 from trocco-io/spotless

Spotless

Author: civitaspo

.github/workflows/main.yml

@@ -21,9 +21,9 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 1.8
-      # TODO: Change this step after appling spotless.
-      # - name: lint
-      #   run: ./gradlew checkstyle
+      - name: lint
+        # Run ./gradlew spotlessApply when failing on this step.
+        run: ./gradlew spotlessCheck
       - run: ./gradlew test
 
       - name: Show Current Version

build.gradle

@@ -1,9 +1,9 @@
 plugins {
     id "java"
-    id "checkstyle"
     id "maven-publish"
     id "org.embulk.embulk-plugins" version "0.4.2"
     id "com.palantir.git-version" version "0.12.3"
+    id "com.diffplug.spotless" version "5.15.0"
 }
 repositories {
     mavenCentral()
@@ -81,19 +81,10 @@ gem {
 gemPush {
     host = "https://rubygems.org"
 }
-checkstyle {
-    configFile = file("${project.rootDir}/config/checkstyle/checkstyle.xml")
-    toolVersion = '6.14.1'
-}
-checkstyleMain {
-    configFile = file("${project.rootDir}/config/checkstyle/default.xml")
-    ignoreFailures = true
-}
-checkstyleTest {
-    configFile = file("${project.rootDir}/config/checkstyle/default.xml")
-    ignoreFailures = true
-}
-task checkstyle(type: Checkstyle) {
-    classpath = sourceSets.main.output + sourceSets.test.output
-    source = sourceSets.main.allJava + sourceSets.test.allJava
+spotless {
+    java {
+        importOrder()
+        removeUnusedImports()
+        googleJavaFormat()
+    }
 }