[BE2] Integration of linter in the main code

be2-scala/.scalafix.conf

@@ -1,6 +1,17 @@
 rules = [
-  DisableSyntax,
-  OrganizeImports,
-  RedundantSyntax
+  ArraysInFormat,
+  CatchNpe,
+  ComparingFloatingTypes,
+  EmptyInterpolatedString,
+  IllegalFormatString,
+  ImpossibleOptionSizeCondition,
+  IncorrectlyNamedExceptions,
+  IncorrectNumberOfArgsToFormat,
+  LonelySealedTrait,
+  MapGetAndGetOrElse,
+  NanComparison,
+  OptionGet,
+  OptionSize,
+  StripMarginOnRegex,
+  TryGet
 ]
-OrganizeImports.removeUnused = false

be2-scala/build.sbt

@@ -7,16 +7,16 @@ scalaVersion := "3.3.1"
 
 // Recommended 2.13 Scala flags (https://nathankleyn.com/2019/05/13/recommended-scalac-flags-for-2-13) slightly adapted for PoP
 scalacOptions ++= Seq(
-  "-deprecation", // Emit warning and location for usages of deprecated APIs.
-  "-explain", // Explain type errors in more detail.
-  "-feature", // Emit warning and location for usages of features that should be imported explicitly.
-  "-language:existentials", // Existential types (besides wildcard types) can be written and inferred
-  "-language:experimental.macros", // Allow macro definition (besides implementation and application)
-  "-language:higherKinds", // Allow higher-kinded types
-  "-language:implicitConversions", // Allow definition of implicit functions called views
-  "-unchecked", // Enable additional warnings where generated code depends on assumptions.
-  "-Ysafe-init", // Wrap field accessors to throw an exception on uninitialized access.
-  "-Xfatal-warnings" // Fail the compilation if there are any warnings.
+    "-deprecation", // Emit warning and location for usages of deprecated APIs.
+    "-explain", // Explain type errors in more detail.
+    "-feature", // Emit warning and location for usages of features that should be imported explicitly.
+    "-language:existentials", // Existential types (besides wildcard types) can be written and inferred
+    "-language:experimental.macros", // Allow macro definition (besides implementation and application)
+    "-language:higherKinds", // Allow higher-kinded types
+    "-language:implicitConversions", // Allow definition of implicit functions called views
+    "-unchecked", // Enable additional warnings where generated code depends on assumptions.
+    "-Ysafe-init", // Wrap field accessors to throw an exception on uninitialized access.
+    "-Xfatal-warnings" // Fail the compilation if there are any warnings.
 )
 
 // Reload changes automatically
@@ -30,9 +30,9 @@ Compile / run / connectInput := true
 // This allows the system properties (-D...) to be passed to the fork
 // Code from: https://stackoverflow.com/a/54326800
 Compile / run / javaOptions ++= {
-  sys.props.toList.map {
-    case (key, value) => s"-D$key=$value"
-  }
+    sys.props.toList.map {
+        case (key, value) => s"-D$key=$value"
+    }
 }
 
 // Make test execution synchronized
@@ -41,23 +41,23 @@ Test / test / parallelExecution := false
 // Create task to copy the protocol folder to resources
 lazy val copyProtocolTask = taskKey[Unit]("Copy protocol to resources")
 copyProtocolTask := {
-  val log = streams.value.log
-  log.info("Executing Protocol folder copy...")
-  val scalaDest = "be2-scala"
-  baseDirectory.value.name
-
-  if (!baseDirectory.value.name.equals(scalaDest)) {
-    log.error(s"Please make sure you working dir is $scalaDest !")
-  } else {
-    val source = new File("../protocol")
-    val dest = new File("./src/main/resources/protocol")
-    Try(IO.copyDirectory(source, dest, overwrite = true)) match {
-      case Success(_) => log.info("Copied protocol folder in ./src/main/resources")
-      case Failure(exception) =>
-        log.error("Could not copy protocol to resource folder")
-        exception.printStackTrace()
+    val log = streams.value.log
+    log.info("Executing Protocol folder copy...")
+    val scalaDest = "be2-scala"
+    baseDirectory.value.name
+
+    if (!baseDirectory.value.name.equals(scalaDest)) {
+        log.error(s"Please make sure you working dir is $scalaDest !")
+    } else {
+        val source = new File("../protocol")
+        val dest = new File("./src/main/resources/protocol")
+        Try(IO.copyDirectory(source, dest, overwrite = true)) match {
+            case Success(_) => log.info("Copied protocol folder in ./src/main/resources")
+            case Failure(exception) =>
+                log.error("Could not copy protocol to resource folder")
+                exception.printStackTrace()
+        }
     }
-  }
 }
 
 // Add the copyProtocolTask to compile and test scopes
@@ -76,54 +76,51 @@ Compile / run / mainClass := Some("ch.epfl.pop.Server")
 Compile / packageBin / mainClass := Some("ch.epfl.pop.Server")
 
 lazy val scoverageSettings = Seq(
-  Compile / coverageEnabled := true,
-  Test / coverageEnabled := true,
-  packageBin / coverageEnabled := false
+    Compile / coverageEnabled := true,
+    Test / coverageEnabled := true,
+    packageBin / coverageEnabled := false
 )
 
-// Scalafix
-semanticdbEnabled := true
-
 // Configure Sonar
 sonarProperties := Map(
-  "sonar.organization" -> "dedis",
-  "sonar.projectKey" -> "dedis_popstellar_be2",
-  "sonar.sources" -> "src/main/scala",
-  "sonar.tests" -> "src/test/scala",
-  "sonar.sourceEncoding" -> "UTF-8",
-  "sonar.scala.version" -> "3.3.1",
-  // Paths to the test and coverage reports
-  "sonar.scala.coverage.reportPaths" -> "./target/scala-3.3.1/scoverage-report/scoverage.xml",
-  "sonar.scala.scapegoat.reportPaths" -> "./target/scala-3.3.1/scapegoat-report/scapegoat.xml"
+    "sonar.organization" -> "dedis",
+    "sonar.projectKey" -> "dedis_popstellar_be2",
+    "sonar.sources" -> "src/main/scala",
+    "sonar.tests" -> "src/test/scala",
+    "sonar.sourceEncoding" -> "UTF-8",
+    "sonar.scala.version" -> "3.3.1",
+    // Paths to the test and coverage reports
+    "sonar.scala.coverage.reportPaths" -> "./target/scala-3.3.1/scoverage-report/scoverage.xml",
+    "sonar.scala.scapegoat.reportPaths" -> "./target/scala-3.3.1/scapegoat-report/scapegoat.xml"
 )
 
 assembly / assemblyMergeStrategy := {
-  case PathList("module-info.class")                                              => MergeStrategy.discard
-  case PathList("reference.conf")                                                 => MergeStrategy.concat
-  case PathList("META-INF", "MANIFEST.MF")                                        => MergeStrategy.discard
-  case PathList("META-INF", "LICENSE")                                            => MergeStrategy.concat
-  case PathList("META-INF", "INDEX.LIST")                                         => MergeStrategy.concat
-  case PathList("META-INF", "NOTICE")                                             => MergeStrategy.discard
-  case PathList("META-INF", "services", "com.fasterxml.jackson.core.ObjectCodec") => MergeStrategy.first
-  case PathList("META-INF", "services", "com.fasterxml.jackson.core.JsonFactory") => MergeStrategy.first
-  case PathList("META-INF", "versions", "9", "module-info.class")                 => MergeStrategy.first
-
-  case PathList("google", "protobuf", "api.proto")            => MergeStrategy.first
-  case PathList("google", "protobuf", "struct.proto")         => MergeStrategy.first
-  case PathList("google", "protobuf", "field_mask.proto")     => MergeStrategy.first
-  case PathList("google", "protobuf", "duration.proto")       => MergeStrategy.first
-  case PathList("google", "protobuf", "timestamp.proto")      => MergeStrategy.first
-  case PathList("google", "protobuf", "source_context.proto") => MergeStrategy.first
-  case PathList("google", "protobuf", "empty.proto")          => MergeStrategy.first
-  case PathList("google", "protobuf", "descriptor.proto")     => MergeStrategy.first
-  case PathList("google", "protobuf", "wrappers.proto")       => MergeStrategy.first
-  case PathList("google", "protobuf", "any.proto")            => MergeStrategy.first
-  case PathList("google", "protobuf", "type.proto")           => MergeStrategy.first
-
-  // exclude digital signatures because the merging process can invalidate them
-  case PathList(ps @ _*) if Seq(".SF", ".DSA", ".RSA").exists(ps.last.endsWith(_)) =>
-    MergeStrategy.discard
-  case _ => MergeStrategy.defaultMergeStrategy("")
+    case PathList("module-info.class")                                              => MergeStrategy.discard
+    case PathList("reference.conf")                                                 => MergeStrategy.concat
+    case PathList("META-INF", "MANIFEST.MF")                                        => MergeStrategy.discard
+    case PathList("META-INF", "LICENSE")                                            => MergeStrategy.concat
+    case PathList("META-INF", "INDEX.LIST")                                         => MergeStrategy.concat
+    case PathList("META-INF", "NOTICE")                                             => MergeStrategy.discard
+    case PathList("META-INF", "services", "com.fasterxml.jackson.core.ObjectCodec") => MergeStrategy.first
+    case PathList("META-INF", "services", "com.fasterxml.jackson.core.JsonFactory") => MergeStrategy.first
+    case PathList("META-INF", "versions", "9", "module-info.class")                 => MergeStrategy.first
+
+    case PathList("google", "protobuf", "api.proto")            => MergeStrategy.first
+    case PathList("google", "protobuf", "struct.proto")         => MergeStrategy.first
+    case PathList("google", "protobuf", "field_mask.proto")     => MergeStrategy.first
+    case PathList("google", "protobuf", "duration.proto")       => MergeStrategy.first
+    case PathList("google", "protobuf", "timestamp.proto")      => MergeStrategy.first
+    case PathList("google", "protobuf", "source_context.proto") => MergeStrategy.first
+    case PathList("google", "protobuf", "empty.proto")          => MergeStrategy.first
+    case PathList("google", "protobuf", "descriptor.proto")     => MergeStrategy.first
+    case PathList("google", "protobuf", "wrappers.proto")       => MergeStrategy.first
+    case PathList("google", "protobuf", "any.proto")            => MergeStrategy.first
+    case PathList("google", "protobuf", "type.proto")           => MergeStrategy.first
+
+    // exclude digital signatures because the merging process can invalidate them
+    case PathList(ps @ _*) if Seq(".SF", ".DSA", ".RSA").exists(ps.last.endsWith(_)) =>
+        MergeStrategy.discard
+    case _ => MergeStrategy.defaultMergeStrategy("")
 }
 
 // ------------------------ DEPENDENCIES ------------------------ 77
@@ -134,14 +131,14 @@ val AkkaVersion = "2.9.1"
 val AkkaHttpVersion = "10.6.0"
 
 libraryDependencies ++= Seq(
-  "com.typesafe.akka" %% "akka-stream-typed" % AkkaVersion, // Akka streams (Graph)
-  "com.typesafe.akka" %% "akka-http" % AkkaHttpVersion, // Akka http (WebSockets)
-  "com.typesafe.akka" %% "akka-cluster-tools" % AkkaVersion, // Akka distributed publish/subscribe cluster
-
-  "ch.qos.logback" % "logback-classic" % "1.4.14" % Runtime, // Akka logging library
-  "com.typesafe.akka" %% "akka-testkit" % AkkaVersion % Test, // Akka actor test kit (akka actor testing library)
-  "com.typesafe.akka" %% "akka-stream-testkit" % AkkaVersion, // Akka stream test kit
-  "com.typesafe.akka" %% "akka-http-testkit" % AkkaHttpVersion // Akka http test kit
+    "com.typesafe.akka" %% "akka-stream-typed" % AkkaVersion, // Akka streams (Graph)
+    "com.typesafe.akka" %% "akka-http" % AkkaHttpVersion, // Akka http (WebSockets)
+    "com.typesafe.akka" %% "akka-cluster-tools" % AkkaVersion, // Akka distributed publish/subscribe cluster
+
+    "ch.qos.logback" % "logback-classic" % "1.4.14" % Runtime, // Akka logging library
+    "com.typesafe.akka" %% "akka-testkit" % AkkaVersion % Test, // Akka actor test kit (akka actor testing library)
+    "com.typesafe.akka" %% "akka-stream-testkit" % AkkaVersion, // Akka stream test kit
+    "com.typesafe.akka" %% "akka-http-testkit" % AkkaHttpVersion // Akka http test kit
 )
 
 // LevelDB database
@@ -173,3 +170,11 @@ libraryDependencies += "com.google.zxing" % "core" % "3.5.1"
 libraryDependencies += "com.auth0" % "java-jwt" % "4.4.0"
 
 conflictManager := ConflictManager.latestCompatible
+
+inThisBuild(
+    List(
+        semanticdbEnabled := true,
+        semanticdbVersion := scalafixSemanticdb.revision,
+        scalafixDependencies += "io.github.dedis" %% "scapegoat-scalafix" % "1.0" // Import custom rules
+    )
+)

be2-scala/linter/build.sbt

@@ -1,12 +1,20 @@
 lazy val V = _root_.scalafix.sbt.BuildInfo
-lazy val rulesCrossVersions = Seq(V.scala213, V.scala212)
+lazy val rulesCrossVersions = Seq(V.scala213)
 lazy val scala3Version = "3.3.1"
 
 inThisBuild(
   List(
-    organization := "dedis",
+    organization := "io.github.dedis",
+      organizationName := "dedis",
+    organizationHomepage := Some(url("https://dedis.epfl.ch")),
+    homepage := Some(url("https://github.com/dedis/popstellar")),
+    licenses := List("AGPL 3.0" -> url("https://www.gnu.org/licenses/agpl-3.0.en.html")),
+      developers := List(Developer("t1b00", "Thibault Czarniak", "[email protected]", url("https://www.linkedin.com/in/thcz/"))),
     semanticdbEnabled := true,
-    semanticdbVersion := scalafixSemanticdb.revision
+    semanticdbVersion := scalafixSemanticdb.revision,
+      scmInfo := Some(ScmInfo(url("https://github.com/dedis/popstellar"), "scm:git@github:dedis/popstellar.git")),
+      version := "1.0",
+      versionScheme := Some("pvp"),
   )
 )
 
@@ -20,14 +28,13 @@ lazy val `popstellar` = (project in file("."))
   .settings(
     publish / skip := true
   )
-
 lazy val rules = projectMatrix
   .settings(
-    moduleName := "scalafix",
-    libraryDependencies += "ch.epfl.scala" %% "scalafix-core" % V.scalafixVersion
+    moduleName := "scapegoat-scalafix",
+    libraryDependencies += "ch.epfl.scala" % "scalafix-core_2.13" % V.scalafixVersion,
   )
   .defaultAxes(VirtualAxis.jvm)
-  .jvmPlatform(rulesCrossVersions)
+  .jvmPlatform(rulesCrossVersions :+ scala3Version)
 
 lazy val input = projectMatrix
   .settings(
@@ -52,6 +59,7 @@ lazy val testsAggregate = Project("tests", file("target/testsAggregate"))
 lazy val tests = projectMatrix
   .settings(
     publish / skip := true,
+      scalaVersion := V.scala213,
     scalafixTestkitOutputSourceDirectories :=
       TargetAxis
         .resolve(output, Compile / unmanagedSourceDirectories)
@@ -70,20 +78,16 @@ lazy val tests = projectMatrix
   .defaultAxes(
     rulesCrossVersions.map(VirtualAxis.scalaABIVersion) :+ VirtualAxis.jvm: _*
   )
-  .jvmPlatform(
-    scalaVersions = Seq(V.scala212),
-    axisValues = Seq(TargetAxis(scala3Version)),
-    settings = Seq()
-  )
   .jvmPlatform(
     scalaVersions = Seq(V.scala213),
     axisValues = Seq(TargetAxis(V.scala213)),
     settings = Seq()
   )
   .jvmPlatform(
-    scalaVersions = Seq(V.scala212),
-    axisValues = Seq(TargetAxis(V.scala212)),
+    scalaVersions = Seq(V.scala213),
+    axisValues = Seq(TargetAxis(scala3Version)),
     settings = Seq()
   )
+
   .dependsOn(rules)
   .enablePlugins(ScalafixTestkitPlugin)

be2-scala/linter/input/src/main/scala/fix/ArraysInFormat.scala

@@ -17,6 +17,8 @@ object ArraysInFormat {
     Array passed to format / interpolate string
      */
 
+    String.format("Here are my cool elements %d", Array.empty[Int]) // assert: ArraysInFormat
+
     "Here are my cool elements %d".format(13) // scalafix: ok;
   }
 

be2-scala/linter/input/src/main/scala/fix/EmptyInterpolatedString.scala

@@ -11,5 +11,6 @@ object EmptyInterpolatedString {
     val str = "I'm hungry!"
     str.format() // assert: EmptyInterpolatedString
     "I'm hungry!".format() // assert: EmptyInterpolatedString
+    "Test %s".format("test") // scalafix: ok;
   }
 }

be2-scala/linter/input/src/main/scala/fix/IllegalFormatString.scala

@@ -10,6 +10,8 @@ object IllegalFormatString {
     val illegalFormatString1 = "%s is %d years old, %d"
     String.format(illegalFormatString1, name, age) // assert: IllegalFormatString
 
+    String.format("%d is %d years old", age, name) // assert: IllegalFormatString
+
     illegalFormatString1.format(name, age) // assert: IllegalFormatString
 
     "%s is %d years old, %d".format(name, age) // assert: IllegalFormatString

be2-scala/linter/input/src/main/scala/fix/StripMarginOnRegex.scala

@@ -6,6 +6,8 @@ package fix
 object StripMarginOnRegex {
   def test() = {
     val regex = "match|this".stripMargin.r // assert: StripMarginOnRegex
+    val myRegex = "match|this"
+    myRegex.stripMargin.r // assert: StripMarginOnRegex
     "match|that".stripMargin.r // assert: StripMarginOnRegex
     "match_this".stripMargin.r // scalafix: ok;
     "match|this".r // scalafix: ok;

be2-scala/linter/project/plugins.sbt

@@ -1,3 +1,4 @@
 resolvers += Resolver.sonatypeRepo("releases")
-addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.12.0")
+addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.12.1")
 addSbtPlugin("com.eed3si9n" % "sbt-projectmatrix" % "0.9.2")
+addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.7")