Enable CI

.github/workflows/ci.yaml

@@ -0,0 +1,29 @@
+name: CI
+on:
+  push:
+    branches: ["main"]
+    tags: ["v*"]
+  pull_request:
+    branches: ["*"]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+          cache: 'sbt'
+
+      - name: Test
+        run: sbt --client ci
+
+      - name: Test publishing
+        run: sbt --client publishLocal

.scalafix.conf

@@ -0,0 +1,21 @@
+rules = [
+  OrganizeImports,
+  DisableSyntax,
+  LeakingImplicitClassVal,
+  NoValInForComprehension,
+  ProcedureSyntax,
+  ExplicitResultTypes
+]
+ExplicitResultTypes.memberKind = [
+  Def
+]
+OrganizeImports {
+  coalesceToWildcardImportThreshold = 5
+  expandRelative = false
+  groupExplicitlyImportedImplicitsSeparately = false
+  groupedImports = Merge
+  groups = ["re:javax?\\.", "scala.", "*"]
+  importSelectorsOrder = SymbolsFirst
+  importsOrder = Ascii
+  removeUnused = false
+}

.scalafmt.conf

@@ -0,0 +1,9 @@
+version = 3.7.17
+maxColumn = 120
+runner.dialect = scala213Source3
+preset=IntelliJ
+indent.extendSite = 6
+align.preset=more
+rewrite.redundantBraces.stringInterpolation = true
+newlines.afterCurlyLambdaParams=squash
+docstrings.style = keep

build.sbt

@@ -1,26 +1,44 @@
-ThisBuild / name := "Tydi-Chisel"
-ThisBuild / description := "Tydi-Chisel is an implementation of Tydi concepts in the Chisel HDL."
-ThisBuild / homepage := Some(url("https://github.com/ccromjongh/tydi-chisel"))
+ThisBuild / name                 := "Tydi-Chisel"
+ThisBuild / description          := "Tydi-Chisel is an implementation of Tydi concepts in the Chisel HDL."
+ThisBuild / homepage             := Some(url("https://github.com/abs-tudelft/tydi-chisel"))
 ThisBuild / organizationHomepage := Some(url("https://github.com/abs-tudelft/"))
-ThisBuild / licenses := List(License.Apache2)
-ThisBuild / version := "0.1.0"
-ThisBuild / organization := "nl.tudelft"
+ThisBuild / licenses             := List(License.Apache2)
+ThisBuild / version              := "0.1.0"
+ThisBuild / organization         := "nl.tudelft"
+ThisBuild / organizationName     := "ABS Group, Delft University of Technology"
+ThisBuild / startYear            := Some(2023)
 
 ThisBuild / scalaVersion := "2.13.12"
 
 val chiselVersion = "5.1.0"
 
 lazy val root = (project in file("."))
   .settings(
-    name := "Tydi-Chisel",
-    libraryDependencies += "org.chipsalliance" %% "chisel" % chiselVersion,
-    libraryDependencies += "edu.berkeley.cs" %% "chiseltest" % "5.0.2",
+    libraryDependencies += "org.chipsalliance" %% "chisel"     % chiselVersion,
+    libraryDependencies += "edu.berkeley.cs"   %% "chiseltest" % "5.0.2",
     scalacOptions ++= Seq(
       "-language:reflectiveCalls",
       "-deprecation",
       "-feature",
       "-Xcheckinit",
-      "-Ymacro-annotations",
+      "-Ymacro-annotations"
     ),
-    addCompilerPlugin("org.chipsalliance" % "chisel-plugin" % chiselVersion cross CrossVersion.full),
+    addCompilerPlugin("org.chipsalliance" % "chisel-plugin" % chiselVersion cross CrossVersion.full)
   )
+
+inThisBuild(
+  List(
+    semanticdbEnabled          := true,
+    semanticdbVersion          := scalafixSemanticdb.revision,
+    scalafixScalaBinaryVersion := scalaBinaryVersion.value
+  )
+)
+
+val CICommands =
+  Seq("clean", "compile", "test", "scalafmtCheckAll", "scalafmtSbtCheck", "scalafixAll --check").mkString(";")
+
+val PrepareCICommands = Seq("scalafixAll", "scalafmtAll", "scalafmtSbt").mkString(";")
+
+addCommandAlias("ci", CICommands)
+
+addCommandAlias("preCI", PrepareCICommands)

project/plugins.sbt

@@ -1 +1,5 @@
 logLevel := Level.Warn
+
+// Code quality
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.2")
+addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.11.1")

src/main/scala/Main.scala

@@ -2,4 +2,4 @@ object Main {
   def main(args: Array[String]): Unit = {
     println("Hello world!")
   }
-}
+}

src/main/scala/gcd/DecoupledGCD.scala

@@ -24,7 +24,7 @@ class GcdOutputBundle(val w: Int) extends Bundle {
   * Can handle stalls on the producer or consumer side
   */
 class DecoupledGcd(width: Int) extends Module {
-  val input = IO(Flipped(Decoupled(new GcdInputBundle(width))))
+  val input  = IO(Flipped(Decoupled(new GcdInputBundle(width))))
   val output = IO(Decoupled(new GcdOutputBundle(width)))
 
   val xInitial    = Reg(UInt())
@@ -34,11 +34,11 @@ class DecoupledGcd(width: Int) extends Module {
   val busy        = RegInit(false.B)
   val resultValid = RegInit(false.B)
 
-  input.ready := ! busy
+  input.ready  := !busy
   output.valid := resultValid
-  output.bits := DontCare
+  output.bits  := DontCare
 
-  when(busy)  {
+  when(busy) {
     when(x > y) {
       x := x - y
     }.otherwise {
@@ -53,21 +53,21 @@ class DecoupledGcd(width: Int) extends Module {
 
       output.bits.value1 := xInitial
       output.bits.value2 := yInitial
-      resultValid := true.B
+      resultValid        := true.B
 
       when(output.ready && resultValid) {
-        busy := false.B
+        busy        := false.B
         resultValid := false.B
       }
     }
   }.otherwise {
     when(input.valid) {
       val bundle = input.deq()
-      x := bundle.value1
-      y := bundle.value2
+      x        := bundle.value1
+      y        := bundle.value2
       xInitial := bundle.value1
       yInitial := bundle.value2
-      busy := true.B
+      busy     := true.B
     }
   }
 }

src/main/scala/gcd/GCD.scala

@@ -18,8 +18,8 @@ class GCD extends Module {
     val outputValid   = Output(Bool())
   })
 
-  val x  = Reg(UInt())
-  val y  = Reg(UInt())
+  val x = Reg(UInt())
+  val y = Reg(UInt())
 
   when(x > y) { x := x - y }
     .otherwise { y := y - x }
@@ -29,6 +29,6 @@ class GCD extends Module {
     y := io.value2
   }
 
-  io.outputGCD := x
+  io.outputGCD   := x
   io.outputValid := y === 0.U
 }

src/main/scala/nl/tudelft/tydi_chisel/ReverseTranspiler.scala

@@ -1,16 +1,17 @@
 package nl.tudelft.tydi_chisel
 
-import chisel3.Data
 import scala.collection.mutable
 
+import chisel3.Data
+
 object ReverseTranspiler {
   implicit class BitsTranspile(e: Data) extends TranspileExtend {
     def tydiCode: String = {
       e match {
         case el: PhysicalStreamBase => el.tydiCode
-        case el: Group => el.tydiCode
-        case el: Union => el.tydiCode
-        case el: Null => el.tydiCode
+        case el: Group              => el.tydiCode
+        case el: Union              => el.tydiCode
+        case el: Null               => el.tydiCode
         case _ => {
           s"$fingerprint = Bit(${e.getWidth}); // ${e.toString}"
         }
@@ -21,9 +22,9 @@ object ReverseTranspiler {
       var m = map
       e match {
         case el: PhysicalStreamBase => el.transpile(m)
-        case el: Group => el.transpile(m)
-        case el: Union => el.transpile(m)
-        case el: Null => el.transpile(m)
+        case el: Group              => el.transpile(m)
+        case el: Union              => el.transpile(m)
+        case el: Null               => el.transpile(m)
         case _ => {
           val s = fingerprint
           if (m.contains(s)) return m
@@ -36,16 +37,16 @@ object ReverseTranspiler {
     def fingerprint: String = {
       e match {
         case el: PhysicalStreamBase => el.fingerprint
-        case el: Group => el.fingerprint
-        case el: Union => el.fingerprint
-        case el: Null => el.fingerprint
+        case el: Group              => el.fingerprint
+        case el: Union              => el.fingerprint
+        case el: Null               => el.fingerprint
         case _ => {
           val strRep = e.toString
-          val name = strRep.replace("<", "_").replace(">", "_").stripSuffix("_")
-          val hash = name.hashCode.toHexString.substring(0, 4)
+          val name   = strRep.replace("<", "_").replace(">", "_").stripSuffix("_")
+          val hash   = name.hashCode.toHexString.substring(0, 4)
           s"${name}_$hash"
         }
       }
     }
   }
-}
+}