Fix warnings in controllers (#3674)

2025-11-05 04:56:02 +01:00 · 2024-12-25 03:02:45 +09:00
parent defc0fa041
commit edc9720a88
16 changed files with 341 additions and 329 deletions
--- a/src/main/scala/gitbucket/core/controller/AccountController.scala
+++ b/src/main/scala/gitbucket/core/controller/AccountController.scala
@@ -42,7 +42,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    GpgKeyService & OneselfAuthenticator & UsersAuthenticator & GroupManagerAuthenticator & ReadableUsersAuthenticator &
    AccessTokenService & WebHookService & PrioritiesService & RepositoryCreationService =>

-  case class AccountNewForm(
+  private case class AccountNewForm(
    userName: String,
    password: String,
    fullName: String,
@@ -53,7 +53,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    fileId: Option[String]
  )

-  case class AccountEditForm(
+  private case class AccountEditForm(
    password: Option[String],
    fullName: String,
    mailAddress: String,
@@ -64,15 +64,15 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    clearImage: Boolean
  )

-  case class SshKeyForm(title: String, publicKey: String)
+  private case class SshKeyForm(title: String, publicKey: String)

-  case class GpgKeyForm(title: String, publicKey: String)
+  private case class GpgKeyForm(title: String, publicKey: String)

-  case class PersonalTokenForm(note: String)
+  private case class PersonalTokenForm(note: String)

-  case class SyntaxHighlighterThemeForm(theme: String)
+  private case class SyntaxHighlighterThemeForm(theme: String)

-  val newForm = mapping(
+  private val newForm = mapping(
    "userName" -> trim(label("User name", text(required, maxlength(100), identifier, uniqueUserName, reservedNames))),
    "password" -> trim(label("Password", text(required, maxlength(40)))),
    "fullName" -> trim(label("Full Name", text(required, maxlength(100)))),
@@ -85,7 +85,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    "fileId" -> trim(label("File ID", optional(text())))
  )(AccountNewForm.apply)

-  val editForm = mapping(
+  private val editForm = mapping(
    "password" -> trim(label("Password", optional(text(maxlength(40))))),
    "fullName" -> trim(label("Full Name", text(required, maxlength(100)))),
    "mailAddress" -> trim(label("Mail Address", text(required, maxlength(100), uniqueMailAddress("userName")))),
@@ -98,41 +98,41 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    "clearImage" -> trim(label("Clear image", boolean()))
  )(AccountEditForm.apply)

-  val sshKeyForm = mapping(
+  private val sshKeyForm = mapping(
    "title" -> trim(label("Title", text(required, maxlength(100)))),
    "publicKey" -> trim2(label("Key", text(required, validPublicKey)))
  )(SshKeyForm.apply)

-  val gpgKeyForm = mapping(
+  private val gpgKeyForm = mapping(
    "title" -> trim(label("Title", text(required, maxlength(100)))),
    "publicKey" -> label("Key", text(required, validGpgPublicKey))
  )(GpgKeyForm.apply)

-  val personalTokenForm = mapping(
+  private val personalTokenForm = mapping(
    "note" -> trim(label("Token", text(required, maxlength(100))))
  )(PersonalTokenForm.apply)

-  val syntaxHighlighterThemeForm = mapping(
+  private val syntaxHighlighterThemeForm = mapping(
    "highlighterTheme" -> trim(label("Theme", text(required)))
  )(SyntaxHighlighterThemeForm.apply)

-  val resetPasswordEmailForm = mapping(
+  private val resetPasswordEmailForm = mapping(
    "mailAddress" -> trim(label("Email", text(required)))
  )(ResetPasswordEmailForm.apply)

-  val resetPasswordForm = mapping(
+  private val resetPasswordForm = mapping(
    "token" -> trim(label("Token", text(required))),
    "password" -> trim(label("Password", text(required, maxlength(40))))
  )(ResetPasswordForm.apply)

-  case class NewGroupForm(
+  private case class NewGroupForm(
    groupName: String,
    description: Option[String],
    url: Option[String],
    fileId: Option[String],
    members: String
  )
-  case class EditGroupForm(
+  private case class EditGroupForm(
    groupName: String,
    description: Option[String],
    url: Option[String],
@@ -140,15 +140,15 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    members: String,
    clearImage: Boolean
  )
-  case class ResetPasswordEmailForm(
+  private case class ResetPasswordEmailForm(
    mailAddress: String
  )
-  case class ResetPasswordForm(
+  private case class ResetPasswordForm(
    token: String,
    password: String
  )

-  val newGroupForm = mapping(
+  private val newGroupForm = mapping(
    "groupName" -> trim(label("Group name", text(required, maxlength(100), identifier, uniqueUserName, reservedNames))),
    "description" -> trim(label("Group description", optional(text()))),
    "url" -> trim(label("URL", optional(text(maxlength(200))))),
@@ -156,7 +156,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    "members" -> trim(label("Members", text(required, members)))
  )(NewGroupForm.apply)

-  val editGroupForm = mapping(
+  private val editGroupForm = mapping(
    "groupName" -> trim(label("Group name", text(required, maxlength(100), identifier))),
    "description" -> trim(label("Group description", optional(text()))),
    "url" -> trim(label("URL", optional(text(maxlength(200))))),
@@ -165,7 +165,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    "clearImage" -> trim(label("Clear image", boolean()))
  )(EditGroupForm.apply)

-  case class RepositoryCreationForm(
+  private case class RepositoryCreationForm(
    owner: String,
    name: String,
    description: Option[String],
@@ -174,7 +174,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    sourceUrl: Option[String]
  )

-  val newRepositoryForm = mapping(
+  private val newRepositoryForm = mapping(
    "owner" -> trim(label("Owner", text(required, maxlength(100), identifier, existsAccount))),
    "name" -> trim(label("Repository name", text(required, maxlength(100), repository, uniqueRepository))),
    "description" -> trim(label("Description", optional(text()))),
@@ -183,21 +183,21 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    "sourceUrl" -> trim(label("Source URL", optionalRequired(_.value("initOption") == "COPY", text())))
  )(RepositoryCreationForm.apply)

-  case class AccountForm(accountName: String)
+  private case class AccountForm(accountName: String)

-  val accountForm = mapping(
+  private val accountForm = mapping(
    "account" -> trim(label("Group/User name", text(required, validAccountName)))
  )(AccountForm.apply)

  // for account web hook url addition.
-  case class AccountWebHookForm(
+  private case class AccountWebHookForm(
    url: String,
    events: Set[WebHook.Event],
    ctype: WebHookContentType,
    token: Option[String]
  )

-  def accountWebHookForm(update: Boolean) =
+  private def accountWebHookForm(update: Boolean) =
    mapping(
      "url" -> trim(label("url", text(required, accountWebHook(update)))),
      "events" -> accountWebhookEvents,
@@ -253,7 +253,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
          )

        // Members
-        case "members" if (account.isGroupAccount) => {
+        case "members" if account.isGroupAccount =>
          val members = getGroupMembers(account.userName)
          gitbucket.core.account.html.members(
            account,
@@ -261,10 +261,9 @@ trait AccountControllerBase extends AccountManagementControllerBase {
            extraMailAddresses,
            isGroupManager(context.loginAccount, members)
          )
-        }

        // Repositories
-        case _ => {
+        case _ =>
          val members = getGroupMembers(account.userName)
          gitbucket.core.account.html.repositories(
            account,
@@ -273,7 +272,6 @@ trait AccountControllerBase extends AccountManagementControllerBase {
            extraMailAddresses,
            isGroupManager(context.loginAccount, members)
          )
-        }
      }
    } getOrElse NotFound()
  }
@@ -281,7 +279,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
  get("/:userName.atom") {
    val userName = params("userName")
    contentType = "application/atom+xml; type=feed"
-    helper.xml.feed(getActivitiesByUser(userName, true))
+    helper.xml.feed(getActivitiesByUser(userName, publicOnly = true))
  }

  get("/:userName.keys") {
@@ -340,7 +338,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
      updateImage(userName, form.fileId, form.clearImage)
      updateAccountExtraMailAddresses(userName, form.extraMailAddresses.filter(_ != ""))
      flash.update("info", "Account information has been updated.")
-      redirect(s"/${userName}/_edit")
+      redirect(s"/$userName/_edit")

    } getOrElse NotFound()
  })
@@ -348,10 +346,10 @@ trait AccountControllerBase extends AccountManagementControllerBase {
  get("/:userName/_delete")(oneselfOnly {
    val userName = params("userName")

-    getAccountByUserName(userName, true).map { account =>
+    getAccountByUserName(userName, includeRemoved = true).map { account =>
      if (isLastAdministrator(account)) {
        flash.update("error", "Account can't be removed because this is last one administrator.")
-        redirect(s"/${userName}/_edit")
+        redirect(s"/$userName/_edit")
      } else {
 //      // Remove repositories
 //      getRepositoryNamesOfUser(userName).foreach { repositoryName =>
@@ -361,7 +359,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
 //        FileUtils.deleteDirectory(getTemporaryDir(userName, repositoryName))
 //      }
        suspendAccount(account)
-        session.invalidate
+        session.invalidate()
        redirect("/")
      }
    } getOrElse NotFound()
@@ -377,14 +375,14 @@ trait AccountControllerBase extends AccountManagementControllerBase {
  post("/:userName/_ssh", sshKeyForm)(oneselfOnly { form =>
    val userName = params("userName")
    addPublicKey(userName, form.title, form.publicKey)
-    redirect(s"/${userName}/_ssh")
+    redirect(s"/$userName/_ssh")
  })

  get("/:userName/_ssh/delete/:id")(oneselfOnly {
    val userName = params("userName")
    val sshKeyId = params("id").toInt
    deletePublicKey(userName, sshKeyId)
-    redirect(s"/${userName}/_ssh")
+    redirect(s"/$userName/_ssh")
  })

  get("/:userName/_gpg")(oneselfOnly {
@@ -398,14 +396,14 @@ trait AccountControllerBase extends AccountManagementControllerBase {
  post("/:userName/_gpg", gpgKeyForm)(oneselfOnly { form =>
    val userName = params("userName")
    addGpgPublicKey(userName, form.title, form.publicKey)
-    redirect(s"/${userName}/_gpg")
+    redirect(s"/$userName/_gpg")
  })

  get("/:userName/_gpg/delete/:id")(oneselfOnly {
    val userName = params("userName")
    val keyId = params("id").toInt
    deleteGpgPublicKey(userName, keyId)
-    redirect(s"/${userName}/_gpg")
+    redirect(s"/$userName/_gpg")
  })

  get("/:userName/_application")(oneselfOnly {
@@ -413,13 +411,12 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    getAccountByUserName(userName).map { x =>
      var tokens = getAccessTokens(x.userName)
      val generatedToken = flash.get("generatedToken") match {
-        case Some((tokenId: Int, token: String)) => {
+        case Some((tokenId: Int, token: String)) =>
          val gt = tokens.find(_.accessTokenId == tokenId)
          gt.map { t =>
            tokens = tokens.filterNot(_ == t)
            (t, token)
          }
-        }
        case _ => None
      }
      html.application(x, tokens, generatedToken)
@@ -428,18 +425,18 @@ trait AccountControllerBase extends AccountManagementControllerBase {

  post("/:userName/_personalToken", personalTokenForm)(oneselfOnly { form =>
    val userName = params("userName")
-    getAccountByUserName(userName).foreach { x =>
+    getAccountByUserName(userName).foreach { _ =>
      val (tokenId, token) = generateAccessToken(userName, form.note)
      flash.update("generatedToken", (tokenId, token))
    }
-    redirect(s"/${userName}/_application")
+    redirect(s"/$userName/_application")
  })

  get("/:userName/_personalToken/delete/:id")(oneselfOnly {
    val userName = params("userName")
    val tokenId = params("id").toInt
    deleteAccessToken(userName, tokenId)
-    redirect(s"/${userName}/_application")
+    redirect(s"/$userName/_application")
  })

  /**
@@ -462,7 +459,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
  post("/:userName/_preferences/highlighter", syntaxHighlighterThemeForm)(oneselfOnly { form =>
    val userName = params("userName")
    addOrUpdateAccountPreference(userName, form.theme)
-    redirect(s"/${userName}/_preferences")
+    redirect(s"/$userName/_preferences")
  })

  get("/:userName/_hooks")(managersOnly {
@@ -479,7 +476,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    val userName = params("userName")
    getAccountByUserName(userName).map { account =>
      val webhook = AccountWebHook(userName, "", WebHookContentType.FORM, None)
-      html.edithook(webhook, Set(WebHook.Push), account, true)
+      html.edithook(webhook, Set(WebHook.Push), account, create = true)
    } getOrElse NotFound()
  })

@@ -490,7 +487,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    val userName = params("userName")
    addAccountWebHook(userName, form.url, form.events, form.ctype, form.token)
    flash.update("info", s"Webhook ${form.url} created")
-    redirect(s"/${userName}/_hooks")
+    redirect(s"/$userName/_hooks")
  })

  /**
@@ -500,7 +497,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    val userName = params("userName")
    deleteAccountWebHook(userName, params("url"))
    flash.update("info", s"Webhook ${params("url")} deleted")
-    redirect(s"/${userName}/_hooks")
+    redirect(s"/$userName/_hooks")
  })

  /**
@@ -510,7 +507,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    val userName = params("userName")
    getAccountByUserName(userName).flatMap { account =>
      getAccountWebHook(userName, params("url")).map { case (webhook, events) =>
-        html.edithook(webhook, events, account, false)
+        html.edithook(webhook, events, account, create = false)
      }
    } getOrElse NotFound()
  })
@@ -522,7 +519,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    val userName = params("userName")
    updateAccountWebHook(userName, form.url, form.events, form.ctype, form.token)
    flash.update("info", s"webhook ${form.url} updated")
-    redirect(s"/${userName}/_hooks")
+    redirect(s"/$userName/_hooks")
  })

  /**
@@ -530,8 +527,8 @@ trait AccountControllerBase extends AccountManagementControllerBase {
   */
  ajaxPost("/:userName/_hooks/test")(managersOnly {
    // TODO Is it possible to merge with [[RepositorySettingsController.ajaxPost]]?
-    import scala.concurrent.duration._
-    import scala.concurrent._
+    import scala.concurrent.duration.*
+    import scala.concurrent.*
    import scala.util.control.NonFatal
    import org.apache.http.util.EntityUtils
    import scala.concurrent.ExecutionContext.Implicits.global
@@ -555,10 +552,10 @@ trait AccountControllerBase extends AccountManagementControllerBase {
      callWebHook(WebHook.Push, List(dummyWebHookInfo), dummyPayload, context.settings).head

    val toErrorMap: PartialFunction[Throwable, Map[String, String]] = {
-      case e: java.net.UnknownHostException                  => Map("error" -> ("Unknown host " + e.getMessage))
-      case e: java.lang.IllegalArgumentException             => Map("error" -> ("invalid url"))
-      case e: org.apache.http.client.ClientProtocolException => Map("error" -> ("invalid url"))
-      case NonFatal(e)                                       => Map("error" -> (s"${e.getClass} ${e.getMessage}"))
+      case e: java.net.UnknownHostException                  => Map("error" -> s"Unknown host ${e.getMessage}")
+      case _: java.lang.IllegalArgumentException             => Map("error" -> "invalid url")
+      case _: org.apache.http.client.ClientProtocolException => Map("error" -> "invalid url")
+      case NonFatal(e)                                       => Map("error" -> s"${e.getClass} ${e.getMessage}")
    }

    contentType = formats("json")
@@ -580,9 +577,9 @@ trait AccountControllerBase extends AccountManagementControllerBase {
          resFuture
            .map(res =>
              Map(
-                "status" -> res.getStatusLine(),
-                "body" -> EntityUtils.toString(res.getEntity()),
-                "headers" -> _headers(res.getAllHeaders())
+                "status" -> res.getStatusLine,
+                "body" -> EntityUtils.toString(res.getEntity),
+                "headers" -> _headers(res.getAllHeaders)
              )
            )
            .recover(toErrorMap),
@@ -609,11 +606,11 @@ trait AccountControllerBase extends AccountManagementControllerBase {
        pbkdf2_sha256(form.password),
        form.fullName,
        form.mailAddress,
-        false,
+        isAdmin = false,
        form.description,
        form.url
      )
-      updateImage(form.userName, form.fileId, false)
+      updateImage(form.userName, form.fileId, clearImage = false)
      updateAccountExtraMailAddresses(form.userName, form.extraMailAddresses.filter(_ != ""))
      redirect("/signin")
    } else NotFound()
@@ -638,7 +635,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
            |You requested to reset the password for your GitBucket account.
            |If you are not sure about the request, you can ignore this email.
            |Otherwise, click the following link to set the new password:
-            |${context.baseUrl}/reset/form/${token}
+            |${context.baseUrl}/reset/form/$token
            |""".stripMargin
        )
      }
@@ -678,7 +675,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {

  get("/groups/new")(usersOnly {
    context.withLoginAccount { loginAccount =>
-      html.creategroup(List(GroupMember("", loginAccount.userName, true)))
+      html.creategroup(List(GroupMember("", loginAccount.userName, isManager = true)))
    }
  })

@@ -695,13 +692,13 @@ trait AccountControllerBase extends AccountManagementControllerBase {
        }
        .toList
    )
-    updateImage(form.groupName, form.fileId, false)
+    updateImage(form.groupName, form.fileId, clearImage = false)
    redirect(s"/${form.groupName}")
  })

  get("/:groupName/_editgroup")(managersOnly {
    val groupName = params("groupName")
-    getAccountByUserName(groupName, true).map { account =>
+    getAccountByUserName(groupName, includeRemoved = true).map { account =>
      html.editgroup(account, getGroupMembers(groupName), flash.get("info"))
    } getOrElse NotFound()
  })
@@ -711,8 +708,8 @@ trait AccountControllerBase extends AccountManagementControllerBase {
    // Remove from GROUP_MEMBER
    updateGroupMembers(groupName, Nil)
    // Disable group
-    getAccountByUserName(groupName, false).foreach { account =>
-      updateGroup(groupName, account.description, account.url, true)
+    getAccountByUserName(groupName, includeRemoved = false).foreach { account =>
+      updateGroup(groupName, account.description, account.url, removed = true)
    }
 //      // Remove repositories
 //      getRepositoryNamesOfUser(groupName).foreach { repositoryName =>
@@ -735,8 +732,8 @@ trait AccountControllerBase extends AccountManagementControllerBase {
      }
      .toList

-    getAccountByUserName(groupName, true).map { account =>
-      updateGroup(groupName, form.description, form.url, false)
+    getAccountByUserName(groupName, includeRemoved = true).map { _ =>
+      updateGroup(groupName, form.description, form.url, removed = false)

      // Update GROUP_MEMBER
      updateGroupMembers(form.groupName, members)
@@ -751,7 +748,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
      updateImage(form.groupName, form.fileId, form.clearImage)

      flash.update("info", "Account information has been updated.")
-      redirect(s"/${groupName}/_editgroup")
+      redirect(s"/$groupName/_editgroup")

    } getOrElse NotFound()
  })
@@ -819,7 +816,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
              repository,
              (groups zip managerPermissions).sortBy(_._1)
            )
-          case _ => redirect(s"/${loginUserName}")
+          case _ => redirect(s"/$loginUserName")
        }
      } else BadRequest()
    }
@@ -835,7 +832,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {

        if (getRepository(accountName, repository.name).isDefined) {
          // redirect to the repository if repository already exists
-          redirect(s"/${accountName}/${repository.name}")
+          redirect(s"/$accountName/${repository.name}")
        } else if (!canCreateRepository(accountName, loginAccount)) {
          // Permission error
          Forbidden()
@@ -843,7 +840,7 @@ trait AccountControllerBase extends AccountManagementControllerBase {
          // fork repository asynchronously
          forkRepository(accountName, repository, loginUserName)
          // redirect to the repository
-          redirect(s"/${accountName}/${repository.name}")
+          redirect(s"/$accountName/${repository.name}")
        }
      } else Forbidden()
    }
--- a/src/main/scala/gitbucket/core/controller/ApiController.scala
+++ b/src/main/scala/gitbucket/core/controller/ApiController.scala
@@ -1,10 +1,10 @@
 package gitbucket.core.controller

-import gitbucket.core.api._
-import gitbucket.core.controller.api._
-import gitbucket.core.service._
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util._
+import gitbucket.core.api.*
+import gitbucket.core.controller.api.*
+import gitbucket.core.service.*
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.*
 import gitbucket.core.plugin.PluginRegistry

 class ApiController
--- a/src/main/scala/gitbucket/core/controller/DashboardController.scala
+++ b/src/main/scala/gitbucket/core/controller/DashboardController.scala
@@ -2,11 +2,11 @@ package gitbucket.core.controller

 import gitbucket.core.dashboard.html
 import gitbucket.core.model.Account
-import gitbucket.core.service._
-import gitbucket.core.util.{Keys, UsersAuthenticator}
-import gitbucket.core.util.Implicits._
-import gitbucket.core.service.IssuesService._
-import gitbucket.core.service.ActivityService._
+import gitbucket.core.service.*
+import gitbucket.core.util.UsersAuthenticator
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.service.IssuesService.*
+import gitbucket.core.service.ActivityService.*

 class DashboardController
    extends DashboardControllerBase
@@ -91,7 +91,7 @@ trait DashboardControllerBase extends ControllerBase {
    }
  })

-  private def getOrCreateCondition(key: String, filter: String, userName: String) = {
+  private def getOrCreateCondition(filter: String, userName: String) = {
    val condition = IssueSearchCondition(request)

    filter match {
@@ -102,11 +102,11 @@ trait DashboardControllerBase extends ControllerBase {
  }

  private def searchIssues(loginAccount: Account, filter: String) = {
-    import IssuesService._
+    import IssuesService.*

    val userName = loginAccount.userName
-    val condition = getOrCreateCondition(Keys.Session.DashboardIssues, filter, userName)
-    val userRepos = getUserRepositories(userName, true).map(repo => repo.owner -> repo.name)
+    val condition = getOrCreateCondition(filter, userName)
+    val userRepos = getUserRepositories(userName, withoutPhysicalInfo = true).map(repo => repo.owner -> repo.name)
    val page = IssueSearchCondition.page(request)
    val issues = searchIssue(condition, IssueSearchOption.Issues, (page - 1) * IssueLimit, IssueLimit, userRepos*)

@@ -133,11 +133,11 @@ trait DashboardControllerBase extends ControllerBase {
  }

  private def searchPullRequests(loginAccount: Account, filter: String) = {
-    import IssuesService._
-    import PullRequestService._
+    import IssuesService.*
+    import PullRequestService.*

    val userName = loginAccount.userName
-    val condition = getOrCreateCondition(Keys.Session.DashboardPulls, filter, userName)
+    val condition = getOrCreateCondition(filter, userName)
    val allRepos = getAllRepositories(userName)
    val page = IssueSearchCondition.page(request)
    val issues = searchIssue(
--- a/src/main/scala/gitbucket/core/controller/FileUploadController.scala
+++ b/src/main/scala/gitbucket/core/controller/FileUploadController.scala
@@ -84,7 +84,7 @@ class FileUploadController
        execute(
          { (file, fileId) =>
            val fileName = file.getName
-            LockUtil.lock(s"${owner}/${repository}/wiki") {
+            LockUtil.lock(s"$owner/$repository/wiki") {
              Using.resource(Git.open(Directory.getWikiRepositoryDir(owner, repository))) { git =>
                val builder = DirCache.newInCore.builder()
                val inserter = git.getRepository.newObjectInserter()
@@ -108,7 +108,7 @@ class FileUploadController
                )
                builder.finish()

-                val newHeadId = JGitUtil.createNewCommit(
+                JGitUtil.createNewCommit(
                  git,
                  inserter,
                  headId,
@@ -116,7 +116,7 @@ class FileUploadController
                  Constants.HEAD,
                  loginAccount.fullName,
                  loginAccount.mailAddress,
-                  s"Uploaded ${fileName}"
+                  s"Uploaded $fileName"
                )

                fileName
@@ -151,7 +151,7 @@ class FileUploadController
  }

  post("/import") {
-    import JDBCUtil._
+    import JDBCUtil.*
    setMultipartConfig()
    session.get(Keys.Session.LoginAccount).collect {
      case loginAccount: Account if loginAccount.isAdmin =>
@@ -168,13 +168,13 @@ class FileUploadController
  private def setMultipartConfig(): Unit = {
    val settings = loadSystemSettings()
    val config = MultipartConfig(maxFileSize = Some(settings.upload.maxFileSize))
-    config.apply(request.getServletContext())
+    config.apply(request.getServletContext)
  }

  private def setMultipartConfigForLargeFile(): Unit = {
    val settings = loadSystemSettings()
    val config = MultipartConfig(maxFileSize = Some(settings.upload.largeMaxFileSize))
-    config.apply(request.getServletContext())
+    config.apply(request.getServletContext)
  }

  private def onlyWikiEditable(owner: String, repository: String, loginAccount: Account)(action: => Any): Any = {
@@ -191,7 +191,7 @@ class FileUploadController
    }
  }

-  private def execute(f: (FileItem, String) => Unit, mimeTypeChecker: (String) => Boolean) =
+  private def execute(f: (FileItem, String) => Unit, mimeTypeChecker: String => Boolean) =
    fileParams.get("file") match {
      case Some(file) if mimeTypeChecker(file.name) =>
        val fileId = FileUtil.generateFileId
--- a/src/main/scala/gitbucket/core/controller/IndexController.scala
+++ b/src/main/scala/gitbucket/core/controller/IndexController.scala
@@ -7,14 +7,14 @@ import com.nimbusds.oauth2.sdk.id.State
 import com.nimbusds.openid.connect.sdk.Nonce
 import gitbucket.core.helper.xml
 import gitbucket.core.model.Account
-import gitbucket.core.service._
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util._
-import gitbucket.core.view.helpers._
+import gitbucket.core.service.*
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.*
+import gitbucket.core.view.helpers.*
 import org.scalatra.Ok
-import org.scalatra.forms._
+import org.scalatra.forms.*

-import gitbucket.core.service.ActivityService._
+import gitbucket.core.service.ActivityService.*

 class IndexController
    extends IndexControllerBase
@@ -37,9 +37,9 @@ trait IndexControllerBase extends ControllerBase {
  self: RepositoryService & ActivityService & AccountService & RepositorySearchService & UsersAuthenticator &
    ReferrerAuthenticator & AccessTokenService & AccountFederationService & OpenIDConnectService =>

-  case class SignInForm(userName: String, password: String, hash: Option[String])
+  private case class SignInForm(userName: String, password: String, hash: Option[String])

-  val signinForm = mapping(
+  private val signinForm = mapping(
    "userName" -> trim(label("Username", text(required))),
    "password" -> trim(label("Password", text(required))),
    "hash" -> trim(optional(text()))
@@ -53,13 +53,13 @@ trait IndexControllerBase extends ControllerBase {
 //
 //  case class SearchForm(query: String, owner: String, repository: String)

-  case class OidcAuthContext(state: State, nonce: Nonce, redirectBackURI: String)
-  case class OidcSessionContext(token: JWT)
+  private case class OidcAuthContext(state: State, nonce: Nonce, redirectBackURI: String)
+  private case class OidcSessionContext(token: JWT)

  get("/") {
    context.loginAccount
      .map { account =>
-        val visibleOwnerSet: Set[String] = Set(account.userName) ++ getGroupsByUserName(account.userName)
+        // val visibleOwnerSet: Set[String] = Set(account.userName) ++ getGroupsByUserName(account.userName)
        if (!isNewsFeedEnabled) {
          redirect("/dashboard/repos")
        } else {
@@ -232,7 +232,7 @@ trait IndexControllerBase extends ControllerBase {
    val group = params("group").toBoolean
    org.json4s.jackson.Serialization.write(
      Map(
-        "options" -> (
+        "options" ->
          getAllUsers(includeRemoved = false)
            .withFilter { t =>
              (user, group) match {
@@ -251,7 +251,6 @@ trait IndexControllerBase extends ControllerBase {
                "value" -> t.userName
              )
            }
-        )
      )
    )
  })
--- a/src/main/scala/gitbucket/core/controller/IssuesController.scala
+++ b/src/main/scala/gitbucket/core/controller/IssuesController.scala
@@ -2,13 +2,13 @@ package gitbucket.core.controller

 import gitbucket.core.issues.html
 import gitbucket.core.model.{Account, CustomFieldBehavior}
-import gitbucket.core.service.IssuesService._
-import gitbucket.core.service._
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util._
+import gitbucket.core.service.IssuesService.*
+import gitbucket.core.service.*
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.*
 import gitbucket.core.view
 import gitbucket.core.view.Markdown
-import org.scalatra.forms._
+import org.scalatra.forms.*
 import org.scalatra.{BadRequest, Ok}

 class IssuesController
@@ -39,7 +39,7 @@ trait IssuesControllerBase extends ControllerBase {
    ReferrerAuthenticator & WritableUsersAuthenticator & PullRequestService & WebHookIssueCommentService &
    PrioritiesService =>

-  case class IssueCreateForm(
+  private case class IssueCreateForm(
    title: String,
    content: Option[String],
    assigneeUserNames: Option[String],
@@ -47,10 +47,10 @@ trait IssuesControllerBase extends ControllerBase {
    priorityId: Option[Int],
    labelNames: Option[String]
  )
-  case class CommentForm(issueId: Int, content: String)
-  case class IssueStateForm(issueId: Int, content: Option[String])
+  private case class CommentForm(issueId: Int, content: String)
+  private case class IssueStateForm(issueId: Int, content: Option[String])

-  val issueCreateForm = mapping(
+  private val issueCreateForm = mapping(
    "title" -> trim(label("Title", text(required))),
    "content" -> trim(optional(text())),
    "assigneeUserNames" -> trim(optional(text())),
@@ -59,19 +59,19 @@ trait IssuesControllerBase extends ControllerBase {
    "labelNames" -> trim(optional(text()))
  )(IssueCreateForm.apply)

-  val issueTitleEditForm = mapping(
+  private val issueTitleEditForm = mapping(
    "title" -> trim(label("Title", text(required)))
  )(x => x)
-  val issueEditForm = mapping(
+  private val issueEditForm = mapping(
    "content" -> trim(optional(text()))
  )(x => x)

-  val commentForm = mapping(
+  private val commentForm = mapping(
    "issueId" -> label("Issue Id", number()),
    "content" -> trim(label("Comment", text(required)))
  )(CommentForm.apply)

-  val issueStateForm = mapping(
+  private val issueStateForm = mapping(
    "issueId" -> label("Issue Id", number()),
    "content" -> trim(optional(text()))
  )(IssueStateForm.apply)
@@ -98,7 +98,7 @@ trait IssuesControllerBase extends ControllerBase {
    val issueId = params("id")
    getIssue(repository.owner, repository.name, issueId) map { issue =>
      if (issue.isPullRequest) {
-        redirect(s"/${repository.owner}/${repository.name}/pull/${issueId}")
+        redirect(s"/${repository.owner}/${repository.name}/pull/$issueId")
      } else {
        html.issue(
          issue,
@@ -219,7 +219,7 @@ trait IssuesControllerBase extends ControllerBase {
            .filter(_ => isEditableContent(issue.userName, issue.repositoryName, issue.openedUserName, loginAccount))
        handleComment(issue, Some(form.content), repository, actionOpt) map { case (issue, id) =>
          redirect(
-            s"/${repository.owner}/${repository.name}/${if (issue.isPullRequest) "pull" else "issues"}/${form.issueId}#comment-${id}"
+            s"/${repository.owner}/${repository.name}/${if (issue.isPullRequest) "pull" else "issues"}/${form.issueId}#comment-$id"
          )
        }
      } getOrElse NotFound()
@@ -235,7 +235,7 @@ trait IssuesControllerBase extends ControllerBase {
            .filter(_ => isEditableContent(issue.userName, issue.repositoryName, issue.openedUserName, loginAccount))
        handleComment(issue, form.content, repository, actionOpt) map { case (issue, id) =>
          redirect(
-            s"/${repository.owner}/${repository.name}/${if (issue.isPullRequest) "pull" else "issues"}/${form.issueId}#comment-${id}"
+            s"/${repository.owner}/${repository.name}/${if (issue.isPullRequest) "pull" else "issues"}/${form.issueId}#comment-$id"
          )
        }
      } getOrElse NotFound()
@@ -330,30 +330,36 @@ trait IssuesControllerBase extends ControllerBase {

  ajaxPost("/:owner/:repository/issues/:id/label/new")(writableUsersOnly { repository =>
    val issueId = params("id").toInt
-    registerIssueLabel(repository.owner, repository.name, issueId, params("labelId").toInt, true)
+    registerIssueLabel(repository.owner, repository.name, issueId, params("labelId").toInt, insertComment = true)
    html.labellist(getIssueLabels(repository.owner, repository.name, issueId))
  })

  ajaxPost("/:owner/:repository/issues/:id/label/delete")(writableUsersOnly { repository =>
    val issueId = params("id").toInt
-    deleteIssueLabel(repository.owner, repository.name, issueId, params("labelId").toInt, true)
+    deleteIssueLabel(repository.owner, repository.name, issueId, params("labelId").toInt, insertComment = true)
    html.labellist(getIssueLabels(repository.owner, repository.name, issueId))
  })

  ajaxPost("/:owner/:repository/issues/:id/assignee/new")(writableUsersOnly { repository =>
    val issueId = params("id").toInt
-    registerIssueAssignee(repository.owner, repository.name, issueId, params("assigneeUserName"), true)
+    registerIssueAssignee(repository.owner, repository.name, issueId, params("assigneeUserName"), insertComment = true)
    Ok()
  })

  ajaxPost("/:owner/:repository/issues/:id/assignee/delete")(writableUsersOnly { repository =>
    val issueId = params("id").toInt
-    deleteIssueAssignee(repository.owner, repository.name, issueId, params("assigneeUserName"), true)
+    deleteIssueAssignee(repository.owner, repository.name, issueId, params("assigneeUserName"), insertComment = true)
    Ok()
  })

  ajaxPost("/:owner/:repository/issues/:id/milestone")(writableUsersOnly { repository =>
-    updateMilestoneId(repository.owner, repository.name, params("id").toInt, milestoneId("milestoneId"), true)
+    updateMilestoneId(
+      repository.owner,
+      repository.name,
+      params("id").toInt,
+      milestoneId("milestoneId"),
+      insertComment = true
+    )
    milestoneId("milestoneId").map { milestoneId =>
      getMilestonesWithIssueCount(repository.owner, repository.name)
        .find(_._1.milestoneId == milestoneId)
@@ -365,7 +371,7 @@ trait IssuesControllerBase extends ControllerBase {

  ajaxPost("/:owner/:repository/issues/:id/priority")(writableUsersOnly { repository =>
    val priority = priorityId("priorityId")
-    updatePriorityId(repository.owner, repository.name, params("id").toInt, priority, true)
+    updatePriorityId(repository.owner, repository.name, params("id").toInt, priority, insertComment = true)
    Ok("updated")
  })

@@ -427,7 +433,7 @@ trait IssuesControllerBase extends ControllerBase {
    params("value").toIntOpt.map { labelId =>
      executeBatch(repository) { issueId =>
        getIssueLabel(repository.owner, repository.name, issueId, labelId) getOrElse {
-          registerIssueLabel(repository.owner, repository.name, issueId, labelId, true)
+          registerIssueLabel(repository.owner, repository.name, issueId, labelId, insertComment = true)
          if (params("uri").nonEmpty) {
            redirect(params("uri"))
          }
@@ -442,9 +448,9 @@ trait IssuesControllerBase extends ControllerBase {
      // updateAssignedUserName(repository.owner, repository.name, _, value, true)
      value match {
        case Some(assignedUserName) =>
-          registerIssueAssignee(repository.owner, repository.name, _, assignedUserName, true)
+          registerIssueAssignee(repository.owner, repository.name, _, assignedUserName, insertComment = true)
        case None =>
-          deleteAllIssueAssignees(repository.owner, repository.name, _, true)
+          deleteAllIssueAssignees(repository.owner, repository.name, _, insertComment = true)
      }
    }
    if (params("uri").nonEmpty) {
@@ -455,20 +461,20 @@ trait IssuesControllerBase extends ControllerBase {
  post("/:owner/:repository/issues/batchedit/milestone")(writableUsersOnly { repository =>
    val value = milestoneId("value")
    executeBatch(repository) {
-      updateMilestoneId(repository.owner, repository.name, _, value, true)
+      updateMilestoneId(repository.owner, repository.name, _, value, insertComment = true)
    }
  })

  post("/:owner/:repository/issues/batchedit/priority")(writableUsersOnly { repository =>
    val value = priorityId("value")
    executeBatch(repository) {
-      updatePriorityId(repository.owner, repository.name, _, value, true)
+      updatePriorityId(repository.owner, repository.name, _, value, insertComment = true)
    }
  })

  get("/:owner/:repository/_attached/:file")(referrersOnly { repository =>
    (Directory.getAttachedDir(repository.owner, repository.name) match {
-      case dir if (dir.exists && dir.isDirectory) =>
+      case dir if dir.exists && dir.isDirectory =>
        dir.listFiles.find(_.getName.startsWith(params("file") + ".")).map { file =>
          response.setHeader("Content-Disposition", f"""inline; filename=${file.getName}""")
          RawData(FileUtil.getSafeMimeType(file.getName), file)
@@ -484,7 +490,7 @@ trait IssuesControllerBase extends ControllerBase {
    contentType = formats("json")
    org.json4s.jackson.Serialization.write(
      Map(
-        "options" -> (
+        "options" ->
          getOpenIssues(repository.owner, repository.name)
            .map { t =>
              Map(
@@ -495,16 +501,15 @@ trait IssuesControllerBase extends ControllerBase {
                "value" -> t.issueId.toString
              )
            }
-        )
      )
    )
  })

-  val assignedUserName = (key: String) => params.get(key) filter (_.trim != "")
-  val milestoneId: String => Option[Int] = (key: String) => params.get(key).flatMap(_.toIntOpt)
-  val priorityId: String => Option[Int] = (key: String) => params.get(key).flatMap(_.toIntOpt)
+  private val assignedUserName = (key: String) => params.get(key) filter (_.trim != "")
+  private val milestoneId: String => Option[Int] = (key: String) => params.get(key).flatMap(_.toIntOpt)
+  private val priorityId: String => Option[Int] = (key: String) => params.get(key).flatMap(_.toIntOpt)

-  private def executeBatch(repository: RepositoryService.RepositoryInfo)(execute: Int => Unit) = {
+  private def executeBatch(repository: RepositoryService.RepositoryInfo)(execute: Int => Unit): Unit = {
    params("checked").split(',') map (_.toInt) foreach execute
    params("from") match {
      case "issues" => redirect(s"/${repository.owner}/${repository.name}/issues")
--- a/src/main/scala/gitbucket/core/controller/LabelsController.scala
+++ b/src/main/scala/gitbucket/core/controller/LabelsController.scala
@@ -10,9 +10,9 @@ import gitbucket.core.service.{
  PrioritiesService
 }
 import gitbucket.core.util.{ReferrerAuthenticator, WritableUsersAuthenticator}
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util.SyntaxSugars._
-import org.scalatra.forms._
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.SyntaxSugars.*
+import org.scalatra.forms.*
 import org.scalatra.i18n.Messages
 import org.scalatra.Ok

@@ -30,9 +30,9 @@ class LabelsController
 trait LabelsControllerBase extends ControllerBase {
  self: LabelsService & IssuesService & RepositoryService & ReferrerAuthenticator & WritableUsersAuthenticator =>

-  case class LabelForm(labelName: String, color: String)
+  private case class LabelForm(labelName: String, color: String)

-  val labelForm = mapping(
+  private val labelForm = mapping(
    "labelName" -> trim(label("Label name", text(required, labelName, uniqueLabelName, maxlength(100)))),
    "labelColor" -> trim(label("Color", text(required, color)))
  )(LabelForm.apply)
@@ -89,9 +89,9 @@ trait LabelsControllerBase extends ControllerBase {
  private def labelName: Constraint = new Constraint() {
    override def validate(name: String, value: String, messages: Messages): Option[String] =
      if (value.contains(',')) {
-        Some(s"${name} contains invalid character.")
+        Some(s"$name contains invalid character.")
      } else if (value.startsWith("_") || value.startsWith("-")) {
-        Some(s"${name} starts with invalid character.")
+        Some(s"$name starts with invalid character.")
      } else {
        None
      }
--- a/src/main/scala/gitbucket/core/controller/MilestonesController.scala
+++ b/src/main/scala/gitbucket/core/controller/MilestonesController.scala
@@ -9,11 +9,11 @@ import gitbucket.core.service.{
  MilestonesService,
  RepositoryService
 }
-import gitbucket.core.util.Implicits._
+import gitbucket.core.util.Implicits.*
 import gitbucket.core.util.{ReferrerAuthenticator, WritableUsersAuthenticator}
-import gitbucket.core.util.SyntaxSugars._
+import gitbucket.core.util.SyntaxSugars.*
 import gitbucket.core.view.helpers.{getAssignableUserNames, getLabels, getPriorities, searchIssue}
-import org.scalatra.forms._
+import org.scalatra.forms.*
 import org.scalatra.i18n.Messages

 class MilestonesController
@@ -29,9 +29,9 @@ trait MilestonesControllerBase extends ControllerBase {
  self: MilestonesService & RepositoryService & CommitStatusService & ReferrerAuthenticator &
    WritableUsersAuthenticator =>

-  case class MilestoneForm(title: String, description: Option[String], dueDate: Option[java.util.Date])
+  private case class MilestoneForm(title: String, description: Option[String], dueDate: Option[java.util.Date])

-  val milestoneForm = mapping(
+  private val milestoneForm = mapping(
    "title" -> trim(label("Title", text(required, maxlength(100), uniqueMilestone))),
    "description" -> trim(label("Description", optional(text()))),
    "dueDate" -> trim(label("Due Date", optional(date())))
--- a/src/main/scala/gitbucket/core/controller/PrioritiesController.scala
+++ b/src/main/scala/gitbucket/core/controller/PrioritiesController.scala
@@ -30,9 +30,9 @@ class PrioritiesController
 trait PrioritiesControllerBase extends ControllerBase {
  self: PrioritiesService & IssuesService & RepositoryService & ReferrerAuthenticator & WritableUsersAuthenticator =>

-  case class PriorityForm(priorityName: String, description: Option[String], color: String)
+  private case class PriorityForm(priorityName: String, description: Option[String], color: String)

-  val priorityForm = mapping(
+  private val priorityForm = mapping(
    "priorityName" -> trim(label("Priority name", text(required, priorityName, uniquePriorityName, maxlength(100)))),
    "description" -> trim(label("Description", optional(text(maxlength(255))))),
    "priorityColor" -> trim(label("Color", text(required, color)))
@@ -86,7 +86,7 @@ trait PrioritiesControllerBase extends ControllerBase {
      )
  })

-  ajaxPost("/:owner/:repository/issues/priorities/reorder")(writableUsersOnly { (repository) =>
+  ajaxPost("/:owner/:repository/issues/priorities/reorder")(writableUsersOnly { repository =>
    reorderPriorities(
      repository.owner,
      repository.name,
@@ -100,7 +100,7 @@ trait PrioritiesControllerBase extends ControllerBase {
    Ok()
  })

-  ajaxPost("/:owner/:repository/issues/priorities/default")(writableUsersOnly { (repository) =>
+  ajaxPost("/:owner/:repository/issues/priorities/default")(writableUsersOnly { repository =>
    setDefaultPriority(repository.owner, repository.name, priorityId("priorityId"))
    Ok()
  })
@@ -118,9 +118,9 @@ trait PrioritiesControllerBase extends ControllerBase {
  private def priorityName: Constraint = new Constraint() {
    override def validate(name: String, value: String, messages: Messages): Option[String] =
      if (value.contains(',')) {
-        Some(s"${name} contains invalid character.")
+        Some(s"$name contains invalid character.")
      } else if (value.startsWith("_") || value.startsWith("-")) {
-        Some(s"${name} starts with invalid character.")
+        Some(s"$name starts with invalid character.")
      } else {
        None
      }
--- a/src/main/scala/gitbucket/core/controller/PullRequestsController.scala
+++ b/src/main/scala/gitbucket/core/controller/PullRequestsController.scala
@@ -4,14 +4,14 @@ import gitbucket.core.model.activity.DeleteBranchInfo
 import gitbucket.core.pulls.html
 import gitbucket.core.service.CommitStatusService
 import gitbucket.core.service.MergeService
-import gitbucket.core.service.IssuesService._
-import gitbucket.core.service.PullRequestService._
+import gitbucket.core.service.IssuesService.*
+import gitbucket.core.service.PullRequestService.*
 import gitbucket.core.service.RepositoryService.RepositoryInfo
-import gitbucket.core.service._
-import gitbucket.core.util.Directory._
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util._
-import org.scalatra.forms._
+import gitbucket.core.service.*
+import gitbucket.core.util.Directory.*
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.*
+import org.scalatra.forms.*
 import org.eclipse.jgit.api.Git
 import org.scalatra.BadRequest

@@ -45,7 +45,7 @@ trait PullRequestsControllerBase extends ControllerBase {
    ReferrerAuthenticator & WritableUsersAuthenticator & CommitStatusService & MergeService & ProtectedBranchService &
    PrioritiesService =>

-  val pullRequestForm = mapping(
+  private val pullRequestForm = mapping(
    "title" -> trim(label("Title", text(required))),
    "content" -> trim(label("Content", optional(text()))),
    "targetUserName" -> trim(text(required, maxlength(100))),
@@ -62,13 +62,13 @@ trait PullRequestsControllerBase extends ControllerBase {
    "labelNames" -> trim(optional(text()))
  )(PullRequestForm.apply)

-  val mergeForm = mapping(
+  private val mergeForm = mapping(
    "message" -> trim(label("Message", text(required))),
    "strategy" -> trim(label("Strategy", text(required))),
    "isDraft" -> trim(boolean(required))
  )(MergeForm.apply)

-  case class PullRequestForm(
+  private case class PullRequestForm(
    title: String,
    content: Option[String],
    targetUserName: String,
@@ -85,7 +85,7 @@ trait PullRequestsControllerBase extends ControllerBase {
    labelNames: Option[String]
  )

-  case class MergeForm(message: String, strategy: String, isDraft: Boolean)
+  private case class MergeForm(message: String, strategy: String, isDraft: Boolean)

  get("/:owner/:repository/pulls")(referrersOnly { repository =>
    val q = request.getParameter("q")
@@ -250,7 +250,7 @@ trait PullRequestsControllerBase extends ControllerBase {
    (for {
      issueId <- params("id").toIntOpt
      loginAccount <- context.loginAccount
-      (issue, pullreq) <- getPullRequest(baseRepository.owner, baseRepository.name, issueId)
+      case (issue, pullreq) <- getPullRequest(baseRepository.owner, baseRepository.name, issueId)
      owner = pullreq.requestUserName
      name = pullreq.requestRepositoryName
      if hasDeveloperRole(owner, name, context.loginAccount)
@@ -288,7 +288,7 @@ trait PullRequestsControllerBase extends ControllerBase {
    (for {
      issueId <- params("id").toIntOpt
      loginAccount <- context.loginAccount
-      (issue, pullreq) <- getPullRequest(baseRepository.owner, baseRepository.name, issueId)
+      case (issue, pullreq) <- getPullRequest(baseRepository.owner, baseRepository.name, issueId)
      repository <- getRepository(pullreq.requestUserName, pullreq.requestRepositoryName)
      remoteRepository <- getRepository(pullreq.userName, pullreq.repositoryName)
      owner = pullreq.requestUserName
@@ -299,7 +299,7 @@ trait PullRequestsControllerBase extends ControllerBase {
      if (branchProtection.needStatusCheck(loginAccount.userName)) {
        flash.update("error", s"branch ${pullreq.requestBranch} is protected need status check.")
      } else {
-        LockUtil.lock(s"${owner}/${name}") {
+        LockUtil.lock(s"$owner/$name") {
          val alias =
            if (
              pullreq.repositoryName == pullreq.requestRepositoryName && pullreq.userName == pullreq.requestUserName
@@ -308,27 +308,27 @@ trait PullRequestsControllerBase extends ControllerBase {
            } else {
              s"${pullreq.userName}:${pullreq.branch}"
            }
-          val existIds = Using
-            .resource(Git.open(Directory.getRepositoryDir(owner, name))) { git =>
-              JGitUtil.getAllCommitIds(git)
-            }
-            .toSet
+//          val existIds = Using
+//            .resource(Git.open(Directory.getRepositoryDir(owner, name))) { git =>
+//              JGitUtil.getAllCommitIds(git)
+//            }
+//            .toSet
          pullRemote(
            repository,
            pullreq.requestBranch,
            remoteRepository,
            pullreq.branch,
            loginAccount,
-            s"Merge branch '${alias}' into ${pullreq.requestBranch}",
+            s"Merge branch '$alias' into ${pullreq.requestBranch}",
            Some(pullreq),
            context.settings
          ) match {
            case None => // conflict
-              flash.update("error", s"Can't automatic merging branch '${alias}' into ${pullreq.requestBranch}.")
+              flash.update("error", s"Can't automatic merging branch '$alias' into ${pullreq.requestBranch}.")
            case Some(oldId) =>
              // update pull request
              updatePullRequests(owner, name, pullreq.requestBranch, loginAccount, "synchronize", context.settings)
-              flash.update("info", s"Merge branch '${alias}' into ${pullreq.requestBranch}")
+              flash.update("info", s"Merge branch '$alias' into ${pullreq.requestBranch}")
          }
        }
      }
@@ -340,7 +340,7 @@ trait PullRequestsControllerBase extends ControllerBase {
  post("/:owner/:repository/pull/:id/update_draft")(readableUsersOnly { baseRepository =>
    (for {
      issueId <- params("id").toIntOpt
-      (_, pullreq) <- getPullRequest(baseRepository.owner, baseRepository.name, issueId)
+      case (_, pullreq) <- getPullRequest(baseRepository.owner, baseRepository.name, issueId)
      owner = pullreq.requestUserName
      name = pullreq.requestRepositoryName
      if hasDeveloperRole(owner, name, context.loginAccount)
@@ -361,7 +361,7 @@ trait PullRequestsControllerBase extends ControllerBase {
          form.isDraft,
          context.settings
        ) match {
-          case Right(objectId) => redirect(s"/${repository.owner}/${repository.name}/pull/${issueId}")
+          case Right(objectId) => redirect(s"/${repository.owner}/${repository.name}/pull/$issueId")
          case Left(message)   => Some(BadRequest(message))
        }
      } getOrElse NotFound()
@@ -383,7 +383,7 @@ trait PullRequestsControllerBase extends ControllerBase {
              .getOrElse(JGitUtil.getDefaultBranch(oldGit, originRepository).get._2)

            redirect(
-              s"/${forkedRepository.owner}/${forkedRepository.name}/compare/${originUserName}:${oldBranch}...${newBranch}"
+              s"/${forkedRepository.owner}/${forkedRepository.name}/compare/$originUserName:$oldBranch...$newBranch"
            )
          }
        } getOrElse NotFound()
@@ -391,7 +391,7 @@ trait PullRequestsControllerBase extends ControllerBase {
        Using.resource(Git.open(getRepositoryDir(forkedRepository.owner, forkedRepository.name))) { git =>
          JGitUtil.getDefaultBranch(git, forkedRepository).map { case (_, defaultBranch) =>
            redirect(
-              s"/${forkedRepository.owner}/${forkedRepository.name}/compare/${defaultBranch}...${headBranch.getOrElse(defaultBranch)}"
+              s"/${forkedRepository.owner}/${forkedRepository.name}/compare/$defaultBranch...${headBranch.getOrElse(defaultBranch)}"
            )
          } getOrElse {
            redirect(s"/${forkedRepository.owner}/${forkedRepository.name}")
@@ -413,7 +413,7 @@ trait PullRequestsControllerBase extends ControllerBase {
      getForkedRepositories(forkedRepository.owner, forkedRepository.name)
        .find(_.userName == originOwner)
        .map(_.repositoryName)
-    } else if (Some(originOwner) == forkedRepository.repository.originUserName) {
+    } else if (forkedRepository.repository.originUserName.contains(originOwner)) {
      // Original repository
      forkedRepository.repository.originRepositoryName
    } else {
@@ -474,7 +474,9 @@ trait PullRequestsControllerBase extends ControllerBase {
              (repository.userName, repository.repositoryName, repository.defaultBranch)
            },
            commits.flatten
-              .flatMap(commit => getCommitComments(forkedRepository.owner, forkedRepository.name, commit.id, false))
+              .flatMap(commit =>
+                getCommitComments(forkedRepository.owner, forkedRepository.name, commit.id, includePullRequest = false)
+              )
              .toList,
            originId,
            forkedId,
@@ -495,8 +497,8 @@ trait PullRequestsControllerBase extends ControllerBase {
        case (oldId, newId) =>
          redirect(
            s"/${forkedRepository.owner}/${forkedRepository.name}/compare/" +
-              s"${originOwner}:${oldId.map(_ => originId).getOrElse(originRepository.repository.defaultBranch)}..." +
-              s"${forkedOwner}:${newId.map(_ => forkedId).getOrElse(forkedRepository.repository.defaultBranch)}"
+              s"$originOwner:${oldId.map(_ => originId).getOrElse(originRepository.repository.defaultBranch)}..." +
+              s"$forkedOwner:${newId.map(_ => forkedId).getOrElse(forkedRepository.repository.defaultBranch)}"
          )

      }
@@ -637,7 +639,7 @@ trait PullRequestsControllerBase extends ControllerBase {
        }
      }

-      redirect(s"/${repository.owner}/${repository.name}/pull/${issueId}")
+      redirect(s"/${repository.owner}/${repository.name}/pull/$issueId")
    }
  })

--- a/src/main/scala/gitbucket/core/controller/ReleasesController.scala
+++ b/src/main/scala/gitbucket/core/controller/ReleasesController.scala
@@ -11,10 +11,10 @@ import gitbucket.core.service.{
  RepositoryService,
  RequestCache
 }
-import gitbucket.core.util._
-import gitbucket.core.util.Directory._
-import gitbucket.core.util.Implicits._
-import org.scalatra.forms._
+import gitbucket.core.util.*
+import gitbucket.core.util.Directory.*
+import gitbucket.core.util.Implicits.*
+import org.scalatra.forms.*
 import gitbucket.core.releases.html
 import org.apache.commons.io.FileUtils
 import org.eclipse.jgit.api.Git
@@ -36,12 +36,12 @@ trait ReleaseControllerBase extends ControllerBase {
  self: RepositoryService & AccountService & ReleaseService & ReadableUsersAuthenticator & ReferrerAuthenticator &
    WritableUsersAuthenticator & ActivityService =>

-  case class ReleaseForm(
+  private case class ReleaseForm(
    name: String,
    content: Option[String]
  )

-  val releaseForm = mapping(
+  private val releaseForm = mapping(
    "name" -> trim(text(required)),
    "content" -> trim(optional(text()))
  )(ReleaseForm.apply)
@@ -125,7 +125,7 @@ trait ReleaseControllerBase extends ControllerBase {
      val releaseInfo = ReleaseInfo(repository.owner, repository.name, loginAccount.userName, form.name, tagName)
      recordActivity(releaseInfo)

-      redirect(s"/${repository.owner}/${repository.name}/releases/${tagName}")
+      redirect(s"/${repository.owner}/${repository.name}/releases/$tagName")
    }
  })

@@ -199,7 +199,7 @@ trait ReleaseControllerBase extends ControllerBase {
            }
          }

-          redirect(s"/${release.userName}/${release.repositoryName}/releases/${tagName}")
+          redirect(s"/${release.userName}/${release.repositoryName}/releases/$tagName")
        }
        .getOrElse(NotFound())
    }
@@ -217,7 +217,7 @@ trait ReleaseControllerBase extends ControllerBase {
  })

  private def fetchReleases(repository: RepositoryService.RepositoryInfo, page: Int) = {
-    import gitbucket.core.service.ReleaseService._
+    import gitbucket.core.service.ReleaseService.*

    val (offset, limit) = ((page - 1) * ReleaseLimit, ReleaseLimit)
    val tagsToDisplay = repository.tags.reverse.slice(offset, offset + limit)
--- a/src/main/scala/gitbucket/core/controller/RepositorySettingsController.scala
+++ b/src/main/scala/gitbucket/core/controller/RepositorySettingsController.scala
@@ -4,16 +4,16 @@ import java.time.{LocalDateTime, ZoneOffset}
 import java.util.Date
 import gitbucket.core.settings.html
 import gitbucket.core.model.{RepositoryWebHook, WebHook}
-import gitbucket.core.service._
-import gitbucket.core.service.WebHookService._
-import gitbucket.core.util._
-import gitbucket.core.util.JGitUtil._
-import gitbucket.core.util.SyntaxSugars._
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util.Directory._
+import gitbucket.core.service.*
+import gitbucket.core.service.WebHookService.*
+import gitbucket.core.util.*
+import gitbucket.core.util.JGitUtil.*
+import gitbucket.core.util.SyntaxSugars.*
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.Directory.*
 import gitbucket.core.model.WebHookContentType
 import gitbucket.core.model.activity.RenameRepositoryInfo
-import org.scalatra.forms._
+import org.scalatra.forms.*
 import org.scalatra.i18n.Messages
 import org.eclipse.jgit.api.Git
 import org.eclipse.jgit.lib.Constants
@@ -41,7 +41,7 @@ trait RepositorySettingsControllerBase extends ControllerBase {
    DeployKeyService & CustomFieldsService & ActivityService & OwnerAuthenticator & UsersAuthenticator =>

  // for repository options
-  case class OptionsForm(
+  private case class OptionsForm(
    description: Option[String],
    isPrivate: Boolean,
    issuesOption: String,
@@ -54,7 +54,7 @@ trait RepositorySettingsControllerBase extends ControllerBase {
    safeMode: Boolean
  )

-  val optionsForm = mapping(
+  private val optionsForm = mapping(
    "description" -> trim(label("Description", optional(text()))),
    "isPrivate" -> trim(label("Repository Type", boolean())),
    "issuesOption" -> trim(label("Issues Option", text(required, featureOption))),
@@ -72,25 +72,30 @@ trait RepositorySettingsControllerBase extends ControllerBase {
  }

  // for default branch
-  case class DefaultBranchForm(defaultBranch: String)
+  private case class DefaultBranchForm(defaultBranch: String)

-  val defaultBranchForm = mapping(
+  private val defaultBranchForm = mapping(
    "defaultBranch" -> trim(label("Default Branch", text(required, maxlength(100))))
  )(DefaultBranchForm.apply)

  // for deploy key
-  case class DeployKeyForm(title: String, publicKey: String, allowWrite: Boolean)
+  private case class DeployKeyForm(title: String, publicKey: String, allowWrite: Boolean)

-  val deployKeyForm = mapping(
+  private val deployKeyForm = mapping(
    "title" -> trim(label("Title", text(required, maxlength(100)))),
    "publicKey" -> trim2(label("Key", text(required))), // TODO duplication check in the repository?
    "allowWrite" -> trim(label("Key", boolean()))
  )(DeployKeyForm.apply)

  // for web hook url addition
-  case class WebHookForm(url: String, events: Set[WebHook.Event], ctype: WebHookContentType, token: Option[String])
+  private case class WebHookForm(
+    url: String,
+    events: Set[WebHook.Event],
+    ctype: WebHookContentType,
+    token: Option[String]
+  )

-  def webHookForm(update: Boolean) =
+  private def webHookForm(update: Boolean) =
    mapping(
      "url" -> trim(label("url", text(required, webHook(update)))),
      "events" -> webhookEvents,
@@ -99,23 +104,23 @@ trait RepositorySettingsControllerBase extends ControllerBase {
    )((url, events, ctype, token) => WebHookForm(url, events, WebHookContentType.valueOf(ctype), token))

  // for rename repository
-  case class RenameRepositoryForm(repositoryName: String)
+  private case class RenameRepositoryForm(repositoryName: String)

-  val renameForm = mapping(
+  private val renameForm = mapping(
    "repositoryName" -> trim(
      label("New repository name", text(required, maxlength(100), repository, renameRepositoryName))
    )
  )(RenameRepositoryForm.apply)

  // for transfer ownership
-  case class TransferOwnerShipForm(newOwner: String)
+  private case class TransferOwnerShipForm(newOwner: String)

-  val transferForm = mapping(
+  private val transferForm = mapping(
    "newOwner" -> trim(label("New owner", text(required, transferUser)))
  )(TransferOwnerShipForm.apply)

  // for custom field
-  case class CustomFieldForm(
+  private case class CustomFieldForm(
    fieldName: String,
    fieldType: String,
    constraints: Option[String],
@@ -123,7 +128,7 @@ trait RepositorySettingsControllerBase extends ControllerBase {
    enableForPullRequests: Boolean
  )

-  val customFieldForm = mapping(
+  private val customFieldForm = mapping(
    "fieldName" -> trim(label("Field name", text(required, maxlength(100)))),
    "fieldType" -> trim(label("Field type", text(required))),
    "constraints" -> trim(label("Constraints", optional(text()))),
@@ -192,7 +197,7 @@ trait RepositorySettingsControllerBase extends ControllerBase {

  /** Branch protection for branch */
  get("/:owner/:repository/settings/branches/*")(ownerOnly { repository =>
-    import gitbucket.core.api._
+    import gitbucket.core.api.*
    val branch = params("splat")

    if (!repository.branchList.contains(branch)) {
@@ -248,7 +253,7 @@ trait RepositorySettingsControllerBase extends ControllerBase {
      ctype = WebHookContentType.FORM,
      token = None
    )
-    html.edithook(webhook, Set(WebHook.Push), repository, true)
+    html.edithook(webhook, Set(WebHook.Push), repository, create = true)
  })

  /**
@@ -279,9 +284,9 @@ trait RepositorySettingsControllerBase extends ControllerBase {
      }

    Using.resource(Git.open(getRepositoryDir(repository.owner, repository.name))) { git =>
-      import scala.concurrent.duration._
-      import scala.concurrent._
-      import scala.jdk.CollectionConverters._
+      import scala.concurrent.duration.*
+      import scala.concurrent.*
+      import scala.jdk.CollectionConverters.*
      import scala.util.control.NonFatal
      import org.apache.http.util.EntityUtils
      import scala.concurrent.ExecutionContext.Implicits.global
@@ -327,10 +332,10 @@ trait RepositorySettingsControllerBase extends ControllerBase {
        callWebHook(WebHook.Push, List(dummyWebHookInfo), dummyPayload, context.settings).head

      val toErrorMap: PartialFunction[Throwable, Map[String, String]] = {
-        case e: java.net.UnknownHostException                  => Map("error" -> ("Unknown host " + e.getMessage))
-        case e: java.lang.IllegalArgumentException             => Map("error" -> ("invalid url"))
-        case e: org.apache.http.client.ClientProtocolException => Map("error" -> ("invalid url"))
-        case NonFatal(e)                                       => Map("error" -> (s"${e.getClass} ${e.getMessage}"))
+        case e: java.net.UnknownHostException                  => Map("error" -> s"Unknown host ${e.getMessage}")
+        case _: java.lang.IllegalArgumentException             => Map("error" -> "invalid url")
+        case _: org.apache.http.client.ClientProtocolException => Map("error" -> "invalid url")
+        case NonFatal(e)                                       => Map("error" -> s"${e.getClass} ${e.getMessage}")
      }

      contentType = formats("json")
@@ -353,8 +358,8 @@ trait RepositorySettingsControllerBase extends ControllerBase {
              .map(res =>
                Map(
                  "status" -> res.getStatusLine.getStatusCode,
-                  "body" -> EntityUtils.toString(res.getEntity()),
-                  "headers" -> _headers(res.getAllHeaders())
+                  "body" -> EntityUtils.toString(res.getEntity),
+                  "headers" -> _headers(res.getAllHeaders)
                )
              )
              .recover(toErrorMap),
@@ -370,7 +375,7 @@ trait RepositorySettingsControllerBase extends ControllerBase {
   */
  get("/:owner/:repository/settings/hooks/edit")(ownerOnly { repository =>
    getWebHook(repository.owner, repository.name, params("url")).map { case (webhook, events) =>
-      html.edithook(webhook, events, repository, false)
+      html.edithook(webhook, events, repository, create = false)
    } getOrElse NotFound()
  })

--- a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
+++ b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
@@ -6,12 +6,12 @@ import javax.servlet.http.{HttpServletRequest, HttpServletResponse}
 import gitbucket.core.repo.html
 import gitbucket.core.helper
 import gitbucket.core.model.activity.DeleteBranchInfo
-import gitbucket.core.service._
+import gitbucket.core.service.*
 import gitbucket.core.service.RepositoryCommitFileService.CommitFile
-import gitbucket.core.util._
-import gitbucket.core.util.StringUtil._
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util.Directory._
+import gitbucket.core.util.*
+import gitbucket.core.util.StringUtil.*
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.Directory.*
 import gitbucket.core.model.{Account, WebHook}
 import gitbucket.core.service.RepositoryService.RepositoryInfo
 import gitbucket.core.service.WebHookService.{WebHookCreatePayload, WebHookPushPayload}
@@ -25,11 +25,11 @@ import org.apache.commons.compress.compressors.gzip.GzipCompressorOutputStream
 import org.apache.commons.compress.compressors.xz.XZCompressorOutputStream
 import org.apache.commons.compress.utils.IOUtils
 import org.apache.commons.io.FileUtils
-import org.scalatra.forms._
+import org.scalatra.forms.*
 import org.eclipse.jgit.api.{ArchiveCommand, Git}
 import org.eclipse.jgit.archive.{TgzFormat, ZipFormat}
 import org.eclipse.jgit.errors.MissingObjectException
-import org.eclipse.jgit.lib._
+import org.eclipse.jgit.lib.*
 import org.eclipse.jgit.treewalk.{TreeWalk, WorkingTreeOptions}
 import org.eclipse.jgit.treewalk.TreeWalk.OperationType
 import org.eclipse.jgit.treewalk.filter.PathFilter
@@ -73,7 +73,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
  ArchiveCommand.registerFormat("zip", new ZipFormat)
  ArchiveCommand.registerFormat("tar.gz", new TgzFormat)

-  case class UploadForm(
+  private case class UploadForm(
    branch: String,
    path: String,
    uploadFiles: String,
@@ -82,7 +82,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    newBranch: Boolean
  )

-  case class EditorForm(
+  private case class EditorForm(
    branch: String,
    path: String,
    content: String,
@@ -95,7 +95,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    newBranch: Boolean
  )

-  case class DeleteForm(
+  private case class DeleteForm(
    branch: String,
    path: String,
    message: Option[String],
@@ -104,7 +104,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    newBranch: Boolean
  )

-  case class CommentForm(
+  private case class CommentForm(
    fileName: Option[String],
    oldLineNumber: Option[Int],
    newLineNumber: Option[Int],
@@ -113,13 +113,13 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    diff: Option[String]
  )

-  case class TagForm(
+  private case class TagForm(
    commitId: String,
    tagName: String,
    message: Option[String]
  )

-  val uploadForm = mapping(
+  private val uploadForm = mapping(
    "branch" -> trim(label("Branch", text(required))),
    "path" -> trim(label("Path", text())),
    "uploadFiles" -> trim(label("Upload files", text(required))),
@@ -128,7 +128,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    "newBranch" -> trim(label("New Branch", boolean()))
  )(UploadForm.apply)

-  val editorForm = mapping(
+  private val editorForm = mapping(
    "branch" -> trim(label("Branch", text(required))),
    "path" -> trim(label("Path", text())),
    "content" -> trim(label("Content", text(required))),
@@ -141,7 +141,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    "newBranch" -> trim(label("New Branch", boolean()))
  )(EditorForm.apply)

-  val deleteForm = mapping(
+  private val deleteForm = mapping(
    "branch" -> trim(label("Branch", text(required))),
    "path" -> trim(label("Path", text())),
    "message" -> trim(label("Message", optional(text()))),
@@ -150,7 +150,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    "newBranch" -> trim(label("New Branch", boolean()))
  )(DeleteForm.apply)

-  val commentForm = mapping(
+  private val commentForm = mapping(
    "fileName" -> trim(label("Filename", optional(text()))),
    "oldLineNumber" -> trim(label("Old line number", optional(number()))),
    "newLineNumber" -> trim(label("New line number", optional(number()))),
@@ -159,7 +159,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    "diff" -> optional(text())
  )(CommentForm.apply)

-  val tagForm = mapping(
+  private val tagForm = mapping(
    "commitId" -> trim(label("Commit id", text(required))),
    "tagName" -> trim(label("Tag name", text(required))),
    "message" -> trim(label("Message", optional(text())))
@@ -285,7 +285,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        html.editor(
          branch = branch,
          repository = repository,
-          pathList = if (path.length == 0) Nil else path.split("/").toList,
+          pathList = if (path.isEmpty) Nil else path.split("/").toList,
          fileName = None,
          content = JGitUtil.ContentInfo("text", None, None, Some("UTF-8")),
          protectedBranch = protectedBranch,
@@ -305,7 +305,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        html.upload(
          branch,
          repository,
-          if (path.length == 0) Nil else path.split("/").toList,
+          if (path.isEmpty) Nil else path.split("/").toList,
          protectedBranch,
          revCommit.name
        )
@@ -353,7 +353,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        .toSeq

      val newFiles = files.map { file =>
-        file.copy(name = if (form.path.length == 0) file.name else s"${form.path}/${file.name}")
+        file.copy(name = if (form.path.isEmpty) file.name else s"${form.path}/${file.name}")
      }

      if (form.newBranch) {
@@ -370,13 +370,13 @@ trait RepositoryViewerControllerBase extends ControllerBase {
                form.message,
                loginAccount
              )
-            redirect(s"/${repository.owner}/${repository.name}/pull/${issueId}")
+            redirect(s"/${repository.owner}/${repository.name}/pull/$issueId")
          case Left(error) => Forbidden(gitbucket.core.html.error(error))
        }
      } else {
        _commit(form.branch, newFiles, loginAccount) match {
          case Right(_) =>
-            if (form.path.length == 0) {
+            if (form.path.isEmpty) {
              redirect(s"/${repository.owner}/${repository.name}/tree/${encodeRefName(form.branch)}")
            } else {
              redirect(
@@ -471,13 +471,13 @@ trait RepositoryViewerControllerBase extends ControllerBase {
                form.message,
                loginAccount
              )
-            redirect(s"/${repository.owner}/${repository.name}/pull/${issueId}")
+            redirect(s"/${repository.owner}/${repository.name}/pull/$issueId")
          case Left(error) => Forbidden(gitbucket.core.html.error(error))
        }
      } else {
        _commit(form.branch, loginAccount) match {
          case Right(_) =>
-            if (form.path.length == 0) {
+            if (form.path.isEmpty) {
              redirect(
                s"/${repository.owner}/${repository.name}/blob/${encodeRefName(form.branch)}/${urlEncode(form.newFileName)}"
              )
@@ -528,13 +528,13 @@ trait RepositoryViewerControllerBase extends ControllerBase {
                form.message,
                loginAccount
              )
-            redirect(s"/${repository.owner}/${repository.name}/pull/${issueId}")
+            redirect(s"/${repository.owner}/${repository.name}/pull/$issueId")
          case Left(error) => Forbidden(gitbucket.core.html.error(error))
        }
      } else {
        _commit(form.branch, loginAccount) match {
          case Right(_) =>
-            if (form.path.length == 0) {
+            if (form.path.isEmpty) {
              redirect(
                s"/${repository.owner}/${repository.name}/blob/${encodeRefName(form.branch)}/${urlEncode(form.newFileName)}"
              )
@@ -581,7 +581,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
                form.message,
                loginAccount
              )
-            redirect(s"/${repository.owner}/${repository.name}/pull/${issueId}")
+            redirect(s"/${repository.owner}/${repository.name}/pull/$issueId")
          case Left(error) => Forbidden(gitbucket.core.html.error(error))
        }
      } else {
@@ -629,7 +629,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
          sender,
          repository,
          owner,
-          ref = s"refs/heads/${newBranchName}",
+          ref = s"refs/heads/$newBranchName",
          refType = "branch"
        )
      }
@@ -686,7 +686,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
  /**
   * Displays the file content of the specified branch or commit.
   */
-  val blobRoute = get("/:owner/:repository/blob/*")(referrersOnly { repository =>
+  private val blobRoute = get("/:owner/:repository/blob/*")(referrersOnly { repository =>
    val (id, path) = repository.splitPath(multiParams("splat").head)
    val raw = params.get("raw").getOrElse("false").toBoolean
    val highlighterTheme = getSyntaxHighlighterTheme()
@@ -792,7 +792,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
          JGitUtil.getBranchesOfCommit(git, revCommit.getName),
          JGitUtil.getTagsOfCommit(git, revCommit.getName),
          getCommitStatusWithSummary(repository.owner, repository.name, revCommit.getName),
-          getCommitComments(repository.owner, repository.name, id, true),
+          getCommitComments(repository.owner, repository.name, id, includePullRequest = true),
          repository,
          diffs,
          oldCommitId,
@@ -802,7 +802,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        )
      }
    } catch {
-      case e: MissingObjectException => NotFound()
+      case _: MissingObjectException => NotFound()
    }
  })

@@ -814,7 +814,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        diff
      }
    } catch {
-      case e: MissingObjectException => NotFound()
+      case _: MissingObjectException => NotFound()
    }
  })

@@ -827,7 +827,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        diff
      }
    } catch {
-      case e: MissingObjectException => NotFound()
+      case _: MissingObjectException => NotFound()
    }
  })

@@ -846,7 +846,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        form.issueId
      )

-      redirect(s"/${repository.owner}/${repository.name}/commit/${id}")
+      redirect(s"/${repository.owner}/${repository.name}/commit/$id")
    }
  })

@@ -1006,7 +1006,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        case Right(message) =>
          flash.update("info", message)
          val settings = loadSystemSettings()
-          val newCommitId = git.getRepository.resolve(s"refs/heads/${newBranchName}")
+          val newCommitId = git.getRepository.resolve(s"refs/heads/$newBranchName")
          val oldCommitId = ObjectId.fromString("0" * 40)
          // call push webhook
          callWebHookOf(repository.owner, repository.name, WebHook.Push, settings) {
@@ -1017,7 +1017,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
              WebHookPushPayload(
                git,
                pusherAccount,
-                s"refs/heads/${newBranchName}",
+                s"refs/heads/$newBranchName",
                repository,
                List(),
                ownerAccount,
@@ -1036,7 +1036,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
                sender,
                repository,
                owner,
-                ref = s"refs/heads/${newBranchName}",
+                ref = s"refs/heads/$newBranchName",
                refType = "branch"
              )
            }
@@ -1046,7 +1046,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
          )
        case Left(message) =>
          flash.update("error", message)
-          redirect(s"/${repository.owner}/${repository.name}/tree/${fromBranchName}")
+          redirect(s"/${repository.owner}/${repository.name}/tree/$fromBranchName")
      }
    }
  })
@@ -1132,9 +1132,9 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    }
  })

-  case class UploadFiles(branch: String, path: String, fileIds: Map[String, String], message: String) {
-    lazy val isValid: Boolean = fileIds.nonEmpty
-  }
+//  case class UploadFiles(branch: String, path: String, fileIds: Map[String, String], message: String) {
+//    lazy val isValid: Boolean = fileIds.nonEmpty
+//  }

  /**
   * Provides HTML of the file list.
@@ -1174,7 +1174,11 @@ trait RepositoryViewerControllerBase extends ControllerBase {
              val path = (file.name :: parentPath.reverse).reverse
              path -> StringUtil.convertFromByteArray(
                JGitUtil
-                  .getContentFromId(Git.open(getRepositoryDir(repository.owner, repository.name)), file.id, true)
+                  .getContentFromId(
+                    Git.open(getRepositoryDir(repository.owner, repository.name)),
+                    file.id,
+                    fetchLargeFile = true
+                  )
                  .get
              )
            }
@@ -1215,7 +1219,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        val oid = git.getRepository.resolve(revision)
        val commit = JGitUtil.getRevCommitFromId(git, oid)
        val date = commit.getCommitterIdent.getWhen
-        val sha1 = oid.getName()
+        val sha1 = oid.getName
        val repositorySuffix = (if (sha1.startsWith(revision)) sha1 else revision).replace('/', '-')
        val pathSuffix = if (path.isEmpty) "" else s"-${path.replace('/', '-')}"
        val baseName = repository.name + "-" + repositorySuffix + pathSuffix
@@ -1223,7 +1227,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
        Using.resource(new TreeWalk(git.getRepository)) { treeWalk =>
          treeWalk.addTree(commit.getTree)
          treeWalk.setRecursive(true)
-          if (!path.isEmpty) {
+          if (path.nonEmpty) {
            treeWalk.setFilter(PathFilter.create(path))
          }
          if (treeWalk != null) {
@@ -1267,7 +1271,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
    }

    val suffix =
-      path.split("/").lastOption.collect { case x if x.length > 0 => "-" + x.replace('/', '_') }.getOrElse("")
+      path.split("/").lastOption.collect { case x if x.nonEmpty => "-" + x.replace('/', '_') }.getOrElse("")
    val zipRe = """(.+)\.zip$""".r
    val tarRe = """(.+)\.tar\.(gz|bz2|xz)$""".r

@@ -1275,7 +1279,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
      case zipRe(revision) =>
        response.setHeader(
          "Content-Disposition",
-          s"attachment; filename=${repository.name}-${revision}${suffix}.zip"
+          s"attachment; filename=${repository.name}-$revision$suffix.zip"
        )
        contentType = "application/octet-stream"
        response.setBufferSize(1024 * 1024)
@@ -1292,7 +1296,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
      case tarRe(revision, compressor) =>
        response.setHeader(
          "Content-Disposition",
-          s"attachment; filename=${repository.name}-${revision}${suffix}.tar.${compressor}"
+          s"attachment; filename=${repository.name}-$revision$suffix.tar.$compressor"
        )
        contentType = "application/octet-stream"
        response.setBufferSize(1024 * 1024)
@@ -1330,9 +1334,9 @@ trait RepositoryViewerControllerBase extends ControllerBase {
      val repository = params("repository")
      val branch = params("branch")

-      LockUtil.lock(s"${owner}/${repository}") {
+      LockUtil.lock(s"$owner/$repository") {
        Using.resource(Git.open(getRepositoryDir(owner, repository))) { git =>
-          val headName = s"refs/heads/${branch}"
+          val headName = s"refs/heads/$branch"
          val headTip = git.getRepository.resolve(headName)
          if (headTip.getName != value) {
            Some("Someone pushed new commits before you. Please reload this page and re-apply your changes.")
--- a/src/main/scala/gitbucket/core/controller/SystemSettingsController.scala
+++ b/src/main/scala/gitbucket/core/controller/SystemSettingsController.scala
@@ -3,17 +3,17 @@ package gitbucket.core.controller
 import java.io.FileInputStream
 import gitbucket.core.admin.html
 import gitbucket.core.plugin.PluginRegistry
-import gitbucket.core.service.SystemSettingsService._
+import gitbucket.core.service.SystemSettingsService.*
 import gitbucket.core.service.{AccountService, RepositoryService}
 import gitbucket.core.ssh.SshServer
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util.StringUtil._
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.StringUtil.*
 import gitbucket.core.util.{AdminAuthenticator, Mailer}
 import org.apache.commons.io.IOUtils
 import org.apache.commons.mail.EmailException
 import org.json4s.jackson.Serialization
-import org.scalatra._
-import org.scalatra.forms._
+import org.scalatra.*
+import org.scalatra.forms.*
 import org.scalatra.i18n.Messages

 import scala.collection.mutable.ListBuffer
@@ -151,11 +151,11 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    "testAddress" -> trim(label("", text(required)))
  )(SendMailForm.apply)

-  case class SendMailForm(smtp: Smtp, testAddress: String)
+  private case class SendMailForm(smtp: Smtp, testAddress: String)

-  case class DataExportForm(tableNames: List[String])
+//  case class DataExportForm(tableNames: List[String])

-  case class NewUserForm(
+  private case class NewUserForm(
    userName: String,
    password: String,
    fullName: String,
@@ -167,7 +167,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    fileId: Option[String]
  )

-  case class EditUserForm(
+  private case class EditUserForm(
    userName: String,
    password: Option[String],
    fullName: String,
@@ -181,7 +181,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    isRemoved: Boolean
  )

-  case class NewGroupForm(
+  private case class NewGroupForm(
    groupName: String,
    description: Option[String],
    url: Option[String],
@@ -189,7 +189,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    members: String
  )

-  case class EditGroupForm(
+  private case class EditGroupForm(
    groupName: String,
    description: Option[String],
    url: Option[String],
@@ -199,7 +199,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    isRemoved: Boolean
  )

-  val newUserForm = mapping(
+  private val newUserForm = mapping(
    "userName" -> trim(label("Username", text(required, maxlength(100), identifier, uniqueUserName, reservedNames))),
    "password" -> trim(label("Password", text(required, maxlength(40)))),
    "fullName" -> trim(label("Full Name", text(required, maxlength(100)))),
@@ -213,7 +213,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    "fileId" -> trim(label("File ID", optional(text())))
  )(NewUserForm.apply)

-  val editUserForm = mapping(
+  private val editUserForm = mapping(
    "userName" -> trim(label("Username", text(required, maxlength(100), identifier))),
    "password" -> trim(label("Password", optional(text(maxlength(40))))),
    "fullName" -> trim(label("Full Name", text(required, maxlength(100)))),
@@ -229,7 +229,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    "removed" -> trim(label("Disable", boolean(disableByNotYourself("userName"))))
  )(EditUserForm.apply)

-  val newGroupForm = mapping(
+  private val newGroupForm = mapping(
    "groupName" -> trim(label("Group name", text(required, maxlength(100), identifier, uniqueUserName, reservedNames))),
    "description" -> trim(label("Group description", optional(text()))),
    "url" -> trim(label("URL", optional(text(maxlength(200))))),
@@ -237,7 +237,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    "members" -> trim(label("Members", text(required, members)))
  )(NewGroupForm.apply)

-  val editGroupForm = mapping(
+  private val editGroupForm = mapping(
    "groupName" -> trim(label("Group name", text(required, maxlength(100), identifier))),
    "description" -> trim(label("Group description", optional(text()))),
    "url" -> trim(label("URL", optional(text(maxlength(200))))),
@@ -363,7 +363,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
  })

  post("/admin/plugins/_reload")(adminOnly {
-    PluginRegistry.reload(request.getServletContext(), loadSystemSettings(), request2Session(request).conn)
+    PluginRegistry.reload(request.getServletContext, loadSystemSettings(), request2Session(request).conn)
    flash.update("info", "All plugins were reloaded.")
    redirect("/admin/plugins")
  })
@@ -385,7 +385,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
    val includeGroups = params.get("includeGroups").exists(_.toBoolean)
    val users = getAllUsers(includeRemoved, includeGroups)
    val members = users.collect {
-      case account if (account.isGroupAccount) =>
+      case account if account.isGroupAccount =>
        account.userName -> getGroupMembers(account.userName).map(_.userName)
    }.toMap

@@ -406,7 +406,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
      form.description,
      form.url
    )
-    updateImage(form.userName, form.fileId, false)
+    updateImage(form.userName, form.fileId, clearImage = false)
    updateAccountExtraMailAddresses(form.userName, form.extraMailAddresses.filter(_ != ""))
    redirect("/admin/users")
  })
@@ -414,12 +414,12 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
  get("/admin/users/:userName/_edituser")(adminOnly {
    val userName = params("userName")
    val extraMails = getAccountExtraMailAddresses(userName)
-    html.user(getAccountByUserName(userName, true), extraMails, flash.get("error"))
+    html.user(getAccountByUserName(userName, includeRemoved = true), extraMails, flash.get("error"))
  })

  post("/admin/users/:name/_edituser", editUserForm)(adminOnly { form =>
    val userName = params("userName")
-    getAccountByUserName(userName, true).map { account =>
+    getAccountByUserName(userName, includeRemoved = true).map { account =>
      if (account.isAdmin && (form.isRemoved || !form.isAdmin) && isLastAdministrator(account)) {
        flash.update("error", "Account can't be turned off because this is last one administrator.")
        redirect(s"/admin/users/${userName}/_edituser")
@@ -476,13 +476,13 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
        }
        .toList
    )
-    updateImage(form.groupName, form.fileId, false)
+    updateImage(form.groupName, form.fileId, clearImage = false)
    redirect("/admin/users")
  })

  get("/admin/users/:groupName/_editgroup")(adminOnly {
    val groupName = params("groupName")
-    html.usergroup(getAccountByUserName(groupName, true), getGroupMembers(groupName))
+    html.usergroup(getAccountByUserName(groupName, includeRemoved = true), getGroupMembers(groupName))
  })

  post("/admin/users/:groupName/_editgroup", editGroupForm)(adminOnly { form =>
@@ -496,7 +496,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
      }
      .toList

-    getAccountByUserName(groupName, true).map { account =>
+    getAccountByUserName(groupName, includeRemoved = true).map { account =>
      updateGroup(groupName, form.description, form.url, form.isRemoved)

      if (form.isRemoved) {
@@ -528,13 +528,13 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
  })

  get("/admin/data")(adminOnly {
-    import gitbucket.core.util.JDBCUtil._
+    import gitbucket.core.util.JDBCUtil.*
    val session = request2Session(request)
    html.data(session.conn.allTableNames())
  })

  post("/admin/export")(adminOnly {
-    import gitbucket.core.util.JDBCUtil._
+    import gitbucket.core.util.JDBCUtil.*
    val file = request2Session(request).conn.exportAsSQL(request.getParameterValues("tableNames").toSeq)

    contentType = "application/octet-stream"
@@ -577,7 +577,7 @@ trait SystemSettingsControllerBase extends AccountManagementControllerBase {
        for {
          userName <- params.get(paramName)
          loginAccount <- context.loginAccount
-          if userName == loginAccount.userName && params.get("removed") == Some("true")
+          if userName == loginAccount.userName && params.get("removed").contains("true")
        } yield "You can't disable your account yourself"
      }
    }
--- a/src/main/scala/gitbucket/core/controller/ValidationSupport.scala
+++ b/src/main/scala/gitbucket/core/controller/ValidationSupport.scala
@@ -1,9 +1,9 @@
 package gitbucket.core.controller

 import org.json4s.{JField, JObject, JString}
-import org.scalatra._
-import org.scalatra.json._
-import org.scalatra.forms._
+import org.scalatra.*
+import org.scalatra.json.*
+import org.scalatra.forms.*
 import org.scalatra.i18n.I18nSupport
 import org.scalatra.servlet.ServletBase

--- a/src/main/scala/gitbucket/core/controller/WikiController.scala
+++ b/src/main/scala/gitbucket/core/controller/WikiController.scala
@@ -5,13 +5,13 @@ import gitbucket.core.model.activity.{CreateWikiPageInfo, DeleteWikiInfo, EditWi
 import gitbucket.core.service.RepositoryService.RepositoryInfo
 import gitbucket.core.service.WebHookService.WebHookGollumPayload
 import gitbucket.core.wiki.html
-import gitbucket.core.service._
-import gitbucket.core.util._
-import gitbucket.core.util.StringUtil._
-import gitbucket.core.util.SyntaxSugars._
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util.Directory._
-import org.scalatra.forms._
+import gitbucket.core.service.*
+import gitbucket.core.util.*
+import gitbucket.core.util.StringUtil.*
+import gitbucket.core.util.SyntaxSugars.*
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.Directory.*
+import org.scalatra.forms.*
 import org.eclipse.jgit.api.Git
 import org.scalatra.i18n.Messages

@@ -32,7 +32,7 @@ trait WikiControllerBase extends ControllerBase {
  self: WikiService & RepositoryService & AccountService & ActivityService & WebHookService &
    ReadableUsersAuthenticator & ReferrerAuthenticator =>

-  case class WikiPageEditForm(
+  private case class WikiPageEditForm(
    pageName: String,
    content: String,
    message: Option[String],
@@ -40,7 +40,7 @@ trait WikiControllerBase extends ControllerBase {
    id: String
  )

-  val newForm = mapping(
+  private val newForm = mapping(
    "pageName" -> trim(label("Page name", text(required, maxlength(40), pageName, unique))),
    "content" -> trim(label("Content", text(required, conflictForNew))),
    "message" -> trim(label("Message", optional(text()))),
@@ -48,7 +48,7 @@ trait WikiControllerBase extends ControllerBase {
    "id" -> trim(label("Latest commit id", text()))
  )(WikiPageEditForm.apply)

-  val editForm = mapping(
+  private val editForm = mapping(
    "pageName" -> trim(label("Page name", text(required, maxlength(40), pageName))),
    "content" -> trim(label("Content", text(required, conflictForEdit))),
    "message" -> trim(label("Message", optional(text()))),
@@ -170,7 +170,7 @@ trait WikiControllerBase extends ControllerBase {
        } else {
          flash.update("info", "This patch was not able to be reversed.")
          redirect(
-            s"/${repository.owner}/${repository.name}/wiki/${StringUtil.urlEncode(pageName)}/_compare/${from}...${to}"
+            s"/${repository.owner}/${repository.name}/wiki/${StringUtil.urlEncode(pageName)}/_compare/$from...$to"
          )
        }
      } else Unauthorized()
@@ -187,7 +187,7 @@ trait WikiControllerBase extends ControllerBase {
          redirect(s"/${repository.owner}/${repository.name}/wiki")
        } else {
          flash.update("info", "This patch was not able to be reversed.")
-          redirect(s"/${repository.owner}/${repository.name}/wiki/_compare/${from}...${to}")
+          redirect(s"/${repository.owner}/${repository.name}/wiki/_compare/$from...$to")
        }
      } else Unauthorized()
    }
@@ -283,7 +283,7 @@ trait WikiControllerBase extends ControllerBase {
          pageName,
          loginAccount.fullName,
          loginAccount.mailAddress,
-          s"Destroyed ${pageName}"
+          s"Destroyed $pageName"
        )
        val deleteWikiInfo = DeleteWikiInfo(
          repository.owner,
@@ -344,9 +344,9 @@ trait WikiControllerBase extends ControllerBase {
  private def pageName: Constraint = new Constraint() {
    override def validate(name: String, value: String, messages: Messages): Option[String] =
      if (value.exists("\\/:*?\"<>|".contains(_))) {
-        Some(s"${name} contains invalid character.")
+        Some(s"$name contains invalid character.")
      } else if (notReservedPageName(value) && (value.startsWith("_") || value.startsWith("-"))) {
-        Some(s"${name} starts with invalid character.")
+        Some(s"$name starts with invalid character.")
      } else {
        None
      }