Add liquibase to perform database migrations

build.gradle

@@ -33,6 +33,7 @@ dependencies {
     implementation 'org.postgresql:postgresql:42.6.0'
     implementation 'org.hibernate:hibernate-core:6.2.7.Final'
     implementation 'org.hibernate:hibernate-hikaricp:6.2.7.Final'
+    implementation 'org.liquibase:liquibase-core:4.23.1'
     implementation 'com.zaxxer:HikariCP:5.0.1'
     implementation 'org.springframework.security:spring-security-crypto:6.1.2'
     implementation 'commons-logging:commons-logging:1.2'

src/main/java/me/kavin/piped/Main.java

@@ -20,7 +20,6 @@ import org.schabi.newpipe.extractor.localization.ContentCountry;
 import org.schabi.newpipe.extractor.localization.Localization;
 import org.schabi.newpipe.extractor.services.youtube.YoutubeThrottlingDecrypter;
 import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor;
-import rocks.kavin.reqwest4j.ReqwestUtils;
 
 import java.util.*;
 import java.util.concurrent.CompletableFuture;
@@ -70,6 +69,13 @@ public class Main {
                 }
             }).start();
 
+        try {
+            LiquibaseHelper.init();
+        } catch (Exception e) {
+            ExceptionHandler.handle(e);
+            System.exit(1);
+        }
+
         try (Session ignored = DatabaseSessionFactory.createSession()) {
             System.out.println("Database connection is ready!");
         } catch (Throwable t) {

src/main/java/me/kavin/piped/utils/LiquibaseHelper.java

@@ -0,0 +1,51 @@
+package me.kavin.piped.utils;
+
+import liquibase.Contexts;
+import liquibase.Liquibase;
+import liquibase.Scope;
+import liquibase.command.CommandScope;
+import liquibase.command.core.UpdateCommandStep;
+import liquibase.command.core.helpers.ChangeExecListenerCommandStep;
+import liquibase.command.core.helpers.DatabaseChangelogCommandStep;
+import liquibase.command.core.helpers.DbUrlConnectionCommandStep;
+import liquibase.database.Database;
+import liquibase.database.DatabaseFactory;
+import liquibase.database.jvm.JdbcConnection;
+import liquibase.exception.LiquibaseException;
+import liquibase.resource.ClassLoaderResourceAccessor;
+import me.kavin.piped.consts.Constants;
+
+import java.io.FileWriter;
+import java.io.IOException;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
+
+public class LiquibaseHelper {
+
+    public static void init() throws Exception {
+
+        String url = Constants.hibernateProperties.get("hibernate.connection.url");
+        String username = Constants.hibernateProperties.get("hibernate.connection.username");
+        String password = Constants.hibernateProperties.get("hibernate.connection.password");
+
+        Database database = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new JdbcConnection(DriverManager.getConnection(url, username, password)));
+
+        try (Liquibase liquibase = new Liquibase("changelog/db.changelog-master.xml", new ClassLoaderResourceAccessor(), database)) {
+
+            Map<String, Object> scopeObjects = new HashMap<>();
+            scopeObjects.put(Scope.Attr.database.name(), liquibase.getDatabase());
+            scopeObjects.put(Scope.Attr.resourceAccessor.name(), liquibase.getResourceAccessor());
+
+            Scope.child(scopeObjects, () -> {
+                CommandScope updateCommand = new CommandScope(UpdateCommandStep.COMMAND_NAME);
+                updateCommand.addArgumentValue(DbUrlConnectionCommandStep.DATABASE_ARG, liquibase.getDatabase());
+                updateCommand.addArgumentValue(UpdateCommandStep.CHANGELOG_FILE_ARG, liquibase.getChangeLogFile());
+                updateCommand.execute();
+            });
+
+        }
+    }
+
+}

src/main/resources/changelog/db.changelog-master.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+                   https://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-latest.xsd">
+
+    <include file="version/0-init.xml" relativeToChangelogFile="true"/>
+
+</databaseChangeLog>

src/main/resources/changelog/version/0-1-init-crdb.sql

@@ -0,0 +1,3 @@
+CREATE INDEX IF NOT EXISTS users_session_id_idx ON users (session_id ASC) STORING (password, username);
+
+--rollback DROP INDEX IF EXISTS users_session_id_idx;

src/main/resources/changelog/version/0-1-init-pg.sql

@@ -0,0 +1,3 @@
+CREATE INDEX IF NOT EXISTS users_session_id_idx ON users (session_id ASC);
+
+--rollback DROP INDEX IF EXISTS users_session_id_idx;

src/main/resources/changelog/version/0-1-init.sql

@@ -0,0 +1,11 @@
+CREATE TABLE IF NOT EXISTS users (
+    id SERIAL NOT NULL,
+    password STRING NULL,
+    session_id STRING(36) NULL,
+    username STRING(24) NULL UNIQUE,
+    CONSTRAINT users_pkey PRIMARY KEY (id ASC),
+    INDEX users_id_idx (id ASC),
+    INDEX username_idx (username ASC)
+);
+
+--rollback DROP TABLE IF EXISTS users;

src/main/resources/changelog/version/0-init.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+                   https://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-latest.xsd">
+
+    <changeSet id="0-1" author="kavin" runInTransaction="false">
+        <sqlFile path="0-1-init.sql" relativeToChangelogFile="true"/>
+        <sqlFile path="0-1-init-crdb.sql" dbms="cockroachdb" relativeToChangelogFile="true"/>
+        <sqlFile path="0-1-init-pg.sql" dbms="postgresql" relativeToChangelogFile="true"/>
+    </changeSet>
+
+</databaseChangeLog>

src/main/resources/hibernate.cfg.xml

@@ -4,7 +4,7 @@
         "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
 <hibernate-configuration>
     <session-factory>
-    	<property name="hibernate.hbm2ddl.auto">update</property>
+        <property name="hibernate.hbm2ddl.auto">validate</property>
         <!-- Optional: Show SQL output for debugging -->
         <property name="hibernate.show_sql">false</property>
         <property name="hibernate.format_sql">true</property>