Merge pull request #19 from Sehee-Lee-01/feat#11-codestyle

🚀 프로젝트에 checkstyle(lint)과 code style(formatter) 설정

build.gradle

@@ -3,6 +3,7 @@ plugins {
     id 'io.spring.dependency-management' version '1.1.4'
     id 'java'
     id 'jacoco'
+    id 'checkstyle'
 }
 
 group = 'com.backendoori'
@@ -82,6 +83,14 @@ jacocoTestCoverageVerification {
             }
         }
     }
-
     dependsOn jacocoTestReport
 }
+
+checkstyle  {
+    toolVersion = "10.12.5"
+    configFile = file("${rootDir}/config/checkstyle/checkstyle.xml")
+    configProperties = [
+            "org.checkstyle.google.suppressionfilter.config"     : "suppressions.xml",
+            "org.checkstyle.google.suppressionxpathfilter.config": "suppressions.xml"
+    ]
+}

config/checkstyle/configuration_1_3.dtd

@@ -0,0 +1,54 @@
+<!-- Add the following to any file that is to be validated against this DTD:
+
+<!DOCTYPE module PUBLIC
+    "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+    "https://checkstyle.org/dtds/configuration_1_3.dtd">
+-->
+
+<!ELEMENT module (module|property|metadata|message)*>
+<!ATTLIST module name NMTOKEN #REQUIRED>
+
+<!ELEMENT property EMPTY>
+<!ATTLIST property
+    name NMTOKEN #REQUIRED
+    value CDATA #REQUIRED
+    default CDATA #IMPLIED
+>
+
+<!--
+
+   Used to store metadata in the Checkstyle configuration file. This
+   information is ignored by Checkstyle. This may be useful if you want to
+   store plug-in specific information.
+
+   To avoid name clashes between different tools/plug-ins you are *strongly*
+   encouraged to prefix all names with your domain name. For example, use the
+   name "com.mycompany.parameter" instead of "parameter".
+
+   The prefix "com.puppycrawl." is reserved for Checkstyle.
+
+-->
+
+<!ELEMENT metadata EMPTY>
+<!ATTLIST metadata
+    name NMTOKEN #REQUIRED
+    value CDATA #REQUIRED
+>
+
+<!--
+   Can be used to replace some generic Checkstyle messages with a custom
+   messages.
+
+   The 'key' attribute specifies for which actual Checkstyle message the
+   replacing should occur, look into Checkstyle's message.properties for
+   the according message keys.
+
+   The 'value' attribute defines the custom message patterns including
+   message parameter placeholders as defined in the original Checkstyle
+   messages (again see message.properties for reference).
+-->
+<!ELEMENT message EMPTY>
+<!ATTLIST message
+    key NMTOKEN #REQUIRED
+    value CDATA #REQUIRED
+>

config/checkstyle/suppressions.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+
+<!DOCTYPE suppressions PUBLIC
+        "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
+        "suppressions_1_2.dtd">
+
+<suppressions>
+</suppressions>

config/checkstyle/suppressions_1_2.dtd

@@ -0,0 +1,16 @@
+<!-- Add the following to any file that is to be validated against this DTD:
+
+<!DOCTYPE suppressions PUBLIC
+    "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
+    "https://checkstyle.org/dtds/suppressions_1_2.dtd">
+-->
+
+<!ELEMENT suppressions (suppress*)>
+
+<!ELEMENT suppress EMPTY>
+<!ATTLIST suppress files CDATA #IMPLIED
+                   checks CDATA #IMPLIED
+                   message CDATA #IMPLIED
+                   id CDATA #IMPLIED
+                   lines CDATA #IMPLIED
+                   columns CDATA #IMPLIED>

src/main/java/com/backendoori/ootw/OotwApplication.java

@@ -6,8 +6,8 @@
 @SpringBootApplication
 public class OotwApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(OotwApplication.class, args);
-	}
+    public static void main(String[] args) {
+        SpringApplication.run(OotwApplication.class, args);
+    }
 
 }

src/main/java/com/backendoori/ootw/domain/BaseEntity.java

@@ -1,8 +1,8 @@
 package com.backendoori.ootw.domain;
 
+import java.time.LocalDateTime;
 import jakarta.persistence.EntityListeners;
 import jakarta.persistence.MappedSuperclass;
-import java.time.LocalDateTime;
 import lombok.Getter;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.LastModifiedDate;