feat: initialize with gradle

.gitignore

@@ -6,9 +6,12 @@
 *.war
 *.zip
 
+build
 target
 
 .idea
 .vscode
+.gradle
 
 !/.mvn/wrapper/maven-wrapper.jar
+!/gradle/wrapper/gradle-wrapper.jar

.travis.yml

@@ -5,8 +5,14 @@ dist: trusty
 jdk:
   - oraclejdk8
 
+cache:
+  directories:
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/
+
+before_cache:
+  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
+  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
+
 before_script:
   - scripts/lint-docs.sh
-
-script:
-  - echo 'todo'

build.gradle

@@ -0,0 +1,36 @@
+allprojects {
+
+  apply plugin: 'idea'
+  apply plugin: 'java'
+  apply plugin: 'checkstyle'
+
+  group = 'org.ridelab'
+  version = '0.0.1'
+
+  sourceCompatibility = 1.8
+  targetCompatibility = 1.8
+
+  [compileJava, compileTestJava, javadoc]*.options*.encoding = 'UTF-8'
+
+}
+
+subprojects {
+
+  repositories {
+    mavenCentral()
+  }
+
+  configurations {}
+
+  dependencies {
+    compile 'org.projectlombok:lombok:1.16.18'
+    compileOnly 'org.jetbrains:annotations:15.0'
+    testCompile 'junit:junit:4.12'
+  }
+
+  checkstyle {
+    toolVersion = '8.5'
+    configFile = rootProject.file 'config/checkstyle/checkstyle.xml'
+  }
+
+}

common/build.gradle

@@ -0,0 +1,4 @@
+dependencies {
+  compile 'ch.qos.logback:logback-classic:1.2.3'
+  compile 'org.apache.commons:commons-lang3:3.7'
+}

common/src/main/java/org/ridelab/bms/common/five/Five.java

@@ -0,0 +1,46 @@
+package org.ridelab.bms.common.five;
+
+import lombok.AccessLevel;
+import lombok.experimental.FieldDefaults;
+import lombok.experimental.UtilityClass;
+
+/**
+ * A library to overcomplicate 5.
+ *
+ * @see <a href="https://github.com/jackdclark/five">five</a>
+ */
+@UtilityClass
+@FieldDefaults(level = AccessLevel.PUBLIC)
+public class Five {
+
+  int five() {
+    return 5;
+  }
+
+  boolean isFive(int n) {
+    return five() == n;
+  }
+
+  String esperanto() {
+    return "kvin";
+  }
+
+  String greek() {
+    return "πέντε";
+  }
+
+  String pinyin() {
+    return "wǔ";
+  }
+
+  String morseCode() {
+    return ".....";
+  }
+
+  String oclock() {
+    // CHECKSTYLE:OFF
+    return "\uD83D\uDD54";
+    // CHECKSTYLE:ON
+  }
+
+}

common/src/test/java/org/ridelab/bms/common/five/FiveTest.java

@@ -0,0 +1,32 @@
+package org.ridelab.bms.common.five;
+
+import org.apache.commons.lang3.StringUtils;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class FiveTest {
+
+  @Test
+  public void five() {
+    assertEquals(5, Five.five());
+  }
+
+  @Test
+  public void isFive() {
+    assertTrue(Five.isFive(5));
+    assertFalse(Five.isFive(6));
+  }
+
+  @Test
+  public void multilingual() {
+    assertTrue(StringUtils.isNoneBlank(
+      Five.esperanto(),
+      Five.greek(),
+      Five.pinyin(),
+      Five.morseCode(),
+      Five.oclock()
+    ));
+  }
+
+}