From 8484d257acd96526c45cfff2a668eb3de1d6e40b Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Mon, 24 Jun 2024 22:01:49 +0700
Subject: [PATCH 01/14] added directives and preprocessing for the directives

---
 .../src/main/scala/scala/build/Project.scala  | 23 ++++++++++++++-
 .../DirectivesPreprocessingUtils.scala        |  1 +
 .../directives/SourceGenerator.scala          | 29 +++++++++++++++++++
 3 files changed, 52 insertions(+), 1 deletion(-)
 create mode 100644 modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala

diff --git a/modules/build/src/main/scala/scala/build/Project.scala b/modules/build/src/main/scala/scala/build/Project.scala
index f6d793be82..bd23a5538c 100644
--- a/modules/build/src/main/scala/scala/build/Project.scala
+++ b/modules/build/src/main/scala/scala/build/Project.scala
@@ -50,6 +50,26 @@ final case class Project(
         bridgeJars = scalaCompiler0.bridgeJarsOpt.map(_.map(_.toNIO).toList)
       )
     }
+
+    val sourceGen: BloopConfig.SourceGenerator = {
+      val command = "/Users/kiki/Kerja/scala-cli/testing-a/source-generator.py"
+
+
+      val sourceGlobs = BloopConfig.SourcesGlobs(
+        (os.root / "Users" / "kiki" / "Kerja" / "scala-cli" / "testing-a" / "generator-inputs").toNIO,
+        None,
+        List("glob:test.in"),
+        Nil
+      )
+
+      BloopConfig.SourceGenerator(
+        List(sourceGlobs),
+        (os.root / "Users" / "kiki" / "Kerja" / "scala-cli" / "testing-a" / "source-generator-a").toNIO,
+        List("python3",command)
+        // Nil
+      )
+    }
+
     baseBloopProject(
       projectName,
       directory.toNIO,
@@ -65,7 +85,8 @@ final case class Project(
         platform = Some(platform),
         `scala` = scalaConfigOpt,
         java = Some(BloopConfig.Java(javacOptions)),
-        resolution = resolution
+        resolution = resolution,
+        sourceGenerators = Some(List(sourceGen))
       )
   }
 
diff --git a/modules/build/src/main/scala/scala/build/preprocessing/directives/DirectivesPreprocessingUtils.scala b/modules/build/src/main/scala/scala/build/preprocessing/directives/DirectivesPreprocessingUtils.scala
index 1201bf3b71..da5114cfa3 100644
--- a/modules/build/src/main/scala/scala/build/preprocessing/directives/DirectivesPreprocessingUtils.scala
+++ b/modules/build/src/main/scala/scala/build/preprocessing/directives/DirectivesPreprocessingUtils.scala
@@ -30,6 +30,7 @@ object DirectivesPreprocessingUtils {
       directives.ScalaJs.handler,
       directives.ScalaNative.handler,
       directives.ScalaVersion.handler,
+      directives.SourceGenerator.handler,
       directives.Sources.handler,
       directives.Tests.handler
     ).map(_.mapE(_.buildOptions))
diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
new file mode 100644
index 0000000000..bbf25dafe2
--- /dev/null
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -0,0 +1,29 @@
+package scala.build.preprocessing.directives
+
+import scala.build.directives.*
+import scala.build.errors.BuildException
+import scala.build.options.BuildOptions
+import scala.cli.commands.SpecificationLevel
+
+@DirectiveExamples("//> using generator")
+@DirectiveUsage(
+    "//> using generator", 
+    "`//> using generator`"
+)
+@DirectiveDescription("Generate code using Source Generator")
+@DirectiveLevel(SpecificationLevel.EXPERIMENTAL)
+final case class SourceGenerator (
+    placeHolderGenerator: Boolean = false
+) extends HasBuildOptions {
+    def buildOptions: Either[BuildException, BuildOptions] = {
+        val buildOpt = BuildOptions(
+            useBuildServer = Some(true)
+        )
+        Right(buildOpt)
+    }
+}
+
+
+object SourceGenerator {
+  val handler: DirectiveHandler[SourceGenerator] = DirectiveHandler.derive
+}

From 315e51601a260ad802f4c0c44af37124bb60d111 Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Tue, 25 Jun 2024 22:30:26 +0700
Subject: [PATCH 02/14] feat: Hardcoded Derivatives WIP

---
 modules/build/src/main/scala/scala/build/Build.scala       | 5 ++++-
 modules/build/src/main/scala/scala/build/Project.scala     | 7 +++----
 .../build/preprocessing/directives/SourceGenerator.scala   | 7 ++-----
 .../src/main/scala/scala/build/options/BuildOptions.scala  | 3 ++-
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/modules/build/src/main/scala/scala/build/Build.scala b/modules/build/src/main/scala/scala/build/Build.scala
index 332a7da206..a939458cc8 100644
--- a/modules/build/src/main/scala/scala/build/Build.scala
+++ b/modules/build/src/main/scala/scala/build/Build.scala
@@ -866,6 +866,8 @@ object Build {
       if (options.useBuildServer.getOrElse(true)) None
       else releaseFlag(options, compilerJvmVersionOpt, logger).map(_.toString)
 
+    val hardcodedSource = options.generateSource
+
     val scalaCompilerParamsOpt = artifacts.scalaOpt match {
       case Some(scalaArtifacts) =>
         val params = value(options.scalaParams).getOrElse {
@@ -1014,7 +1016,8 @@ object Build {
       resourceDirs = sources.resourceDirs,
       scope = scope,
       javaHomeOpt = Option(options.javaHomeLocation().value),
-      javacOptions = javacOptions
+      javacOptions = javacOptions,
+      generateSource = hardcodedSource
     )
     project
   }
diff --git a/modules/build/src/main/scala/scala/build/Project.scala b/modules/build/src/main/scala/scala/build/Project.scala
index bd23a5538c..d0284a3fb8 100644
--- a/modules/build/src/main/scala/scala/build/Project.scala
+++ b/modules/build/src/main/scala/scala/build/Project.scala
@@ -28,7 +28,8 @@ final case class Project(
   resourceDirs: Seq[os.Path],
   javaHomeOpt: Option[os.Path],
   scope: Scope,
-  javacOptions: List[String]
+  javacOptions: List[String],
+  generateSource: Option[Boolean]
 ) {
 
   import Project._
@@ -53,8 +54,6 @@ final case class Project(
 
     val sourceGen: BloopConfig.SourceGenerator = {
       val command = "/Users/kiki/Kerja/scala-cli/testing-a/source-generator.py"
-
-
       val sourceGlobs = BloopConfig.SourcesGlobs(
         (os.root / "Users" / "kiki" / "Kerja" / "scala-cli" / "testing-a" / "generator-inputs").toNIO,
         None,
@@ -86,7 +85,7 @@ final case class Project(
         `scala` = scalaConfigOpt,
         java = Some(BloopConfig.Java(javacOptions)),
         resolution = resolution,
-        sourceGenerators = Some(List(sourceGen))
+        sourceGenerators = if (generateSource.getOrElse(false)) Some(List(sourceGen)) else None
       )
   }
 
diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index bbf25dafe2..2e9682a313 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -6,10 +6,7 @@ import scala.build.options.BuildOptions
 import scala.cli.commands.SpecificationLevel
 
 @DirectiveExamples("//> using generator")
-@DirectiveUsage(
-    "//> using generator", 
-    "`//> using generator`"
-)
+@DirectiveUsage("//> using generator", "`//> using generator`")
 @DirectiveDescription("Generate code using Source Generator")
 @DirectiveLevel(SpecificationLevel.EXPERIMENTAL)
 final case class SourceGenerator (
@@ -17,7 +14,7 @@ final case class SourceGenerator (
 ) extends HasBuildOptions {
     def buildOptions: Either[BuildException, BuildOptions] = {
         val buildOpt = BuildOptions(
-            useBuildServer = Some(true)
+            generateSource = Some(placeHolderGenerator)
         )
         Right(buildOpt)
     }
diff --git a/modules/options/src/main/scala/scala/build/options/BuildOptions.scala b/modules/options/src/main/scala/scala/build/options/BuildOptions.scala
index 695022ec04..4dd2c6b9d2 100644
--- a/modules/options/src/main/scala/scala/build/options/BuildOptions.scala
+++ b/modules/options/src/main/scala/scala/build/options/BuildOptions.scala
@@ -46,7 +46,8 @@ final case class BuildOptions(
   testOptions: TestOptions = TestOptions(),
   notForBloopOptions: PostBuildOptions = PostBuildOptions(),
   sourceGeneratorOptions: SourceGeneratorOptions = SourceGeneratorOptions(),
-  useBuildServer: Option[Boolean] = None
+  useBuildServer: Option[Boolean] = None,
+  generateSource: Option[Boolean] = None
 ) {
 
   import BuildOptions.JavaHomeInfo

From 5b2c47c43a3255b2c23715e40b529b082ef4218a Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Tue, 25 Jun 2024 22:30:37 +0700
Subject: [PATCH 03/14] experiment test

---
 .../scala/build/preprocessing/DirectivesPreprocessor.scala  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
index 3006196cf4..5742d01d7d 100644
--- a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
+++ b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
@@ -78,6 +78,9 @@ case class DirectivesPreprocessor(
       )
     }
 
+    for (vals <- unusedDirectives) println(s"preprocess- ${vals.toString}  ${vals.key}") 
+
+
     val (optionsWithActualRequirements, optionsWithEmptyRequirements) =
       buildOptionsWithTargetRequirements.global.partition(_.requirements.nonEmpty)
     val summedOptionsWithNoRequirements =
@@ -121,6 +124,7 @@ case class DirectivesPreprocessor(
       logger: Logger
     ): Either[BuildException, ProcessedDirective[T]] =
       if !allowRestrictedFeatures && (handler.isRestricted || handler.isExperimental) then
+        print("Reached Error Flow")
         Left(DirectiveErrors(
           ::(WarningMessages.powerDirectiveUsedInSip(scopedDirective, handler), Nil),
           Seq(scopedDirective.directive.position(scopedDirective.maybePath))
@@ -128,6 +132,7 @@ case class DirectivesPreprocessor(
       else
         if handler.isExperimental && !shouldSuppressExperimentalFeatures then
           logger.experimentalWarning(scopedDirective.directive.toString, FeatureType.Directive)
+        print("Reached Here")
         handler.handleValues(scopedDirective, logger)
 
     val handlersMap = handlers
@@ -137,6 +142,7 @@ case class DirectivesPreprocessor(
       .toMap
 
     val unused = directives.filter(d => !handlersMap.contains(d.key))
+    for (vals <- unused) println(s"${vals.toString}  ${vals.key}") 
 
     val res = directives
       .iterator

From 86a9a4e36ff61e49120c6de0c3cae57d7e5317af Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Sat, 6 Jul 2024 16:03:15 +0700
Subject: [PATCH 04/14] feat: working directive

---
 .../src/main/scala/scala/build/Build.scala    |  2 +-
 .../src/main/scala/scala/build/Project.scala  | 60 +++++++++++++------
 .../DirectivesPreprocessor.scala              |  2 -
 .../directives/SourceGenerator.scala          | 40 +++++++++----
 .../scala/build/options/BuildOptions.scala    |  1 -
 .../scala/build/options/SourceGenerator.scala | 36 +++++++++++
 .../options/SourceGeneratorOptions.scala      |  3 +-
 7 files changed, 109 insertions(+), 35 deletions(-)
 create mode 100644 modules/options/src/main/scala/scala/build/options/SourceGenerator.scala

diff --git a/modules/build/src/main/scala/scala/build/Build.scala b/modules/build/src/main/scala/scala/build/Build.scala
index a939458cc8..9999ec31c5 100644
--- a/modules/build/src/main/scala/scala/build/Build.scala
+++ b/modules/build/src/main/scala/scala/build/Build.scala
@@ -866,7 +866,7 @@ object Build {
       if (options.useBuildServer.getOrElse(true)) None
       else releaseFlag(options, compilerJvmVersionOpt, logger).map(_.toString)
 
-    val hardcodedSource = options.generateSource
+    val hardcodedSource = options.sourceGeneratorOptions.generatorConfig
 
     val scalaCompilerParamsOpt = artifacts.scalaOpt match {
       case Some(scalaArtifacts) =>
diff --git a/modules/build/src/main/scala/scala/build/Project.scala b/modules/build/src/main/scala/scala/build/Project.scala
index d0284a3fb8..0cf38ba500 100644
--- a/modules/build/src/main/scala/scala/build/Project.scala
+++ b/modules/build/src/main/scala/scala/build/Project.scala
@@ -10,7 +10,7 @@ import java.nio.charset.StandardCharsets
 import java.nio.file.Path
 import java.util.Arrays
 
-import scala.build.options.{ScalacOpt, Scope, ShadowingSeq}
+import scala.build.options.{GeneratorConfig, ScalacOpt, Scope, ShadowingSeq}
 
 final case class Project(
   workspace: os.Path,
@@ -29,7 +29,7 @@ final case class Project(
   javaHomeOpt: Option[os.Path],
   scope: Scope,
   javacOptions: List[String],
-  generateSource: Option[Boolean]
+  generateSource: Option[GeneratorConfig]
 ) {
 
   import Project._
@@ -52,22 +52,48 @@ final case class Project(
       )
     }
 
-    val sourceGen: BloopConfig.SourceGenerator = {
-      val command = "/Users/kiki/Kerja/scala-cli/testing-a/source-generator.py"
-      val sourceGlobs = BloopConfig.SourcesGlobs(
-        (os.root / "Users" / "kiki" / "Kerja" / "scala-cli" / "testing-a" / "generator-inputs").toNIO,
-        None,
-        List("glob:test.in"),
-        Nil
-      )
+    val sourceGen0: Option[List[BloopConfig.SourceGenerator]] =
+      generateSource.map(config =>
+        println(os.pwd)
+        println(config.commandFilePath)
+        println(config.inputDir)
+        println(config.glob)
+        val command0 = s"${os.pwd}/testing-a/${config.commandFilePath}"
+        val sourceGlobs0 = BloopConfig.SourcesGlobs(
+          (os.pwd / "testing-a" / config.inputDir).toNIO,
+          None,
+          config.glob,
+          Nil
+        )
+
+        val sourceGen = BloopConfig.SourceGenerator(
+          List(sourceGlobs0),
+          (os.pwd / "testing-a" / "source-generator-output").toNIO,
+          List("python3", command0)
+          // Nil
+        )
 
-      BloopConfig.SourceGenerator(
-        List(sourceGlobs),
-        (os.root / "Users" / "kiki" / "Kerja" / "scala-cli" / "testing-a" / "source-generator-a").toNIO,
-        List("python3",command)
-        // Nil
+        List(sourceGen)
       )
-    }
+
+    // val sourceGen: BloopConfig.SourceGenerator = {
+    //   val command = s"${os.pwd}/${generateSource.commandFilePath}"
+    //   val sourceGlobs = BloopConfig.SourcesGlobs(
+    //     (os.pwd / generateSource.inputDir).toNIO,
+    //     None,
+    //     List(generateSource.glob),
+    //     Nil
+    //   )
+
+    //   BloopConfig.SourceGenerator(
+    //     List(sourceGlobs),
+    //     (os.pwd / "testing-a" / "source-generator-output").toNIO,
+    //     List("python3", command)
+    //     // Nil
+    //   )
+    // }
+
+    
 
     baseBloopProject(
       projectName,
@@ -85,7 +111,7 @@ final case class Project(
         `scala` = scalaConfigOpt,
         java = Some(BloopConfig.Java(javacOptions)),
         resolution = resolution,
-        sourceGenerators = if (generateSource.getOrElse(false)) Some(List(sourceGen)) else None
+        sourceGenerators = sourceGen0
       )
   }
 
diff --git a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
index 5742d01d7d..40047f564b 100644
--- a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
+++ b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
@@ -124,7 +124,6 @@ case class DirectivesPreprocessor(
       logger: Logger
     ): Either[BuildException, ProcessedDirective[T]] =
       if !allowRestrictedFeatures && (handler.isRestricted || handler.isExperimental) then
-        print("Reached Error Flow")
         Left(DirectiveErrors(
           ::(WarningMessages.powerDirectiveUsedInSip(scopedDirective, handler), Nil),
           Seq(scopedDirective.directive.position(scopedDirective.maybePath))
@@ -132,7 +131,6 @@ case class DirectivesPreprocessor(
       else
         if handler.isExperimental && !shouldSuppressExperimentalFeatures then
           logger.experimentalWarning(scopedDirective.directive.toString, FeatureType.Directive)
-        print("Reached Here")
         handler.handleValues(scopedDirective, logger)
 
     val handlersMap = handlers
diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index 2e9682a313..73f1b9776f 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -1,25 +1,39 @@
 package scala.build.preprocessing.directives
 
-import scala.build.directives.*
-import scala.build.errors.BuildException
-import scala.build.options.BuildOptions
 import scala.cli.commands.SpecificationLevel
+import scala.build.directives.*
+import scala.build.EitherCps.{either, value}
+import scala.build.Ops.*
+import scala.build.errors.{BuildException, CompositeBuildException}
+import scala.build.options.{BuildOptions, SourceGeneratorOptions, GeneratorConfig}
+import scala.build.options.GeneratorConfig
+import scala.build.{Positioned, options}
 
-@DirectiveExamples("//> using generator")
-@DirectiveUsage("//> using generator", "`//> using generator`")
+@DirectiveUsage("//> using sourceGenerator", "`//> using sourceGenerator`")
 @DirectiveDescription("Generate code using Source Generator")
 @DirectiveLevel(SpecificationLevel.EXPERIMENTAL)
-final case class SourceGenerator (
-    placeHolderGenerator: Boolean = false
+final case class SourceGenerator(
+  sourceGenerator: Option[Positioned[String]] = None
 ) extends HasBuildOptions {
-    def buildOptions: Either[BuildException, BuildOptions] = {
-        val buildOpt = BuildOptions(
-            generateSource = Some(placeHolderGenerator)
-        )
-        Right(buildOpt)
+  def buildOptions: Either[BuildException, BuildOptions] = either {
+    val maybeGenerateSource = sourceGenerator
+      .map(GeneratorConfig.parse)
+      .sequence
+
+    // val buildOpt = BuildOptions(
+    //   generateSource = Some(generateSource0)
+    // )
+
+    val generateSource = maybeGenerateSource match {
+      case Left(buildException) => throw buildException
+      case Right(config) => config
     }
-}
 
+    BuildOptions(sourceGeneratorOptions =
+      SourceGeneratorOptions(generatorConfig = generateSource)
+    )
+  }
+}
 
 object SourceGenerator {
   val handler: DirectiveHandler[SourceGenerator] = DirectiveHandler.derive
diff --git a/modules/options/src/main/scala/scala/build/options/BuildOptions.scala b/modules/options/src/main/scala/scala/build/options/BuildOptions.scala
index 4dd2c6b9d2..e8d34db3ab 100644
--- a/modules/options/src/main/scala/scala/build/options/BuildOptions.scala
+++ b/modules/options/src/main/scala/scala/build/options/BuildOptions.scala
@@ -47,7 +47,6 @@ final case class BuildOptions(
   notForBloopOptions: PostBuildOptions = PostBuildOptions(),
   sourceGeneratorOptions: SourceGeneratorOptions = SourceGeneratorOptions(),
   useBuildServer: Option[Boolean] = None,
-  generateSource: Option[Boolean] = None
 ) {
 
   import BuildOptions.JavaHomeInfo
diff --git a/modules/options/src/main/scala/scala/build/options/SourceGenerator.scala b/modules/options/src/main/scala/scala/build/options/SourceGenerator.scala
new file mode 100644
index 0000000000..d80d857d44
--- /dev/null
+++ b/modules/options/src/main/scala/scala/build/options/SourceGenerator.scala
@@ -0,0 +1,36 @@
+package scala.build.options
+
+import scala.build.Positioned
+import scala.build.errors.{BuildException, MalformedInputError}
+
+final case class GeneratorConfig(
+  inputDir: String,
+  glob: List[String],
+  commandFilePath: String
+)
+
+object GeneratorConfig {
+
+  def parse(input: Positioned[String]): Either[BuildException, GeneratorConfig] =
+    input.value.split("\\|", 3) match {
+      case Array(inputDir, glob, commandFilePath) =>
+        Right(GeneratorConfig(inputDir, List(glob), commandFilePath))
+      case _ =>
+        Left(
+          new MalformedInputError(
+            "sourceGenerator",
+            input.value,
+            "inputDir|glob|commandFilePath",
+            input.positions
+          )
+        )
+    }
+
+  // def formatPath(
+  //   inputDir: String,
+  //   glob: String,
+  //   commandFilePath: String,
+  // ): GeneratorConfig = {
+
+  // }
+}
diff --git a/modules/options/src/main/scala/scala/build/options/SourceGeneratorOptions.scala b/modules/options/src/main/scala/scala/build/options/SourceGeneratorOptions.scala
index fca0cf7967..10177f94ff 100644
--- a/modules/options/src/main/scala/scala/build/options/SourceGeneratorOptions.scala
+++ b/modules/options/src/main/scala/scala/build/options/SourceGeneratorOptions.scala
@@ -3,7 +3,8 @@ package scala.build.options
 final case class SourceGeneratorOptions(
   useBuildInfo: Option[Boolean] = None,
   projectVersion: Option[String] = None,
-  computeVersion: Option[ComputeVersion] = None
+  computeVersion: Option[ComputeVersion] = None,
+  generatorConfig: Option[GeneratorConfig] = None
 )
 
 object SourceGeneratorOptions {

From da562787d2c6d81646468c075e05383cbc07789e Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Fri, 12 Jul 2024 23:49:00 +0700
Subject: [PATCH 05/14] working with ${.} unclean

---
 .../src/main/scala/scala/build/Project.scala     | 16 +++++++++-------
 .../build/directives/DirectiveValueParser.scala  |  1 +
 .../directives/SourceGenerator.scala             | 10 ++++------
 3 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/modules/build/src/main/scala/scala/build/Project.scala b/modules/build/src/main/scala/scala/build/Project.scala
index 0cf38ba500..13d2f8cb66 100644
--- a/modules/build/src/main/scala/scala/build/Project.scala
+++ b/modules/build/src/main/scala/scala/build/Project.scala
@@ -7,7 +7,7 @@ import coursier.core.Classifier
 
 import java.io.ByteArrayOutputStream
 import java.nio.charset.StandardCharsets
-import java.nio.file.Path
+import java.nio.file.{Path, Paths}
 import java.util.Arrays
 
 import scala.build.options.{GeneratorConfig, ScalacOpt, Scope, ShadowingSeq}
@@ -54,13 +54,14 @@ final case class Project(
 
     val sourceGen0: Option[List[BloopConfig.SourceGenerator]] =
       generateSource.map(config =>
-        println(os.pwd)
-        println(config.commandFilePath)
-        println(config.inputDir)
-        println(config.glob)
-        val command0 = s"${os.pwd}/testing-a/${config.commandFilePath}"
+        println(s"Input Directory => ${config.inputDir}")
+        println(s"Globber => ${config.glob}")
+        println(s"Command File Path => ${config.commandFilePath}")
+        // val command0 = s"${os.pwd}/testing-a/${config.commandFilePath}"
+        val command0 = config.commandFilePath
         val sourceGlobs0 = BloopConfig.SourcesGlobs(
-          (os.pwd / "testing-a" / config.inputDir).toNIO,
+          // (os.pwd / "testing-a" / config.inputDir).toNIO,
+          Paths.get(config.inputDir),
           None,
           config.glob,
           Nil
@@ -69,6 +70,7 @@ final case class Project(
         val sourceGen = BloopConfig.SourceGenerator(
           List(sourceGlobs0),
           (os.pwd / "testing-a" / "source-generator-output").toNIO,
+          // Paths.get(config.inputDir),
           List("python3", command0)
           // Nil
         )
diff --git a/modules/directives/src/main/scala/scala/build/directives/DirectiveValueParser.scala b/modules/directives/src/main/scala/scala/build/directives/DirectiveValueParser.scala
index 866653ecaa..c25465fcff 100644
--- a/modules/directives/src/main/scala/scala/build/directives/DirectiveValueParser.scala
+++ b/modules/directives/src/main/scala/scala/build/directives/DirectiveValueParser.scala
@@ -138,6 +138,7 @@ object DirectiveValueParser {
   given DirectiveSingleValueParser[String] =
     (key, value, scopePath, path) =>
       value.asString.toRight {
+        println("do we get here?")
         val pos = value.position(path)
         new MalformedDirectiveError(
           message =
diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index 73f1b9776f..bf3ed88548 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -13,17 +13,15 @@ import scala.build.{Positioned, options}
 @DirectiveDescription("Generate code using Source Generator")
 @DirectiveLevel(SpecificationLevel.EXPERIMENTAL)
 final case class SourceGenerator(
-  sourceGenerator: Option[Positioned[String]] = None
+  sourceGenerator: DirectiveValueParser.WithScopePath[Option[Positioned[String]]] = DirectiveValueParser.WithScopePath.empty(None)
 ) extends HasBuildOptions {
   def buildOptions: Either[BuildException, BuildOptions] = either {
-    val maybeGenerateSource = sourceGenerator
+    val sourceGen = sourceGenerator.value
+    
+    val maybeGenerateSource = sourceGen
       .map(GeneratorConfig.parse)
       .sequence
 
-    // val buildOpt = BuildOptions(
-    //   generateSource = Some(generateSource0)
-    // )
-
     val generateSource = maybeGenerateSource match {
       case Left(buildException) => throw buildException
       case Right(config) => config

From 28cf22a9a4328f4a1ca013ffb9b6def4acc449cc Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Sun, 14 Jul 2024 19:59:21 +0700
Subject: [PATCH 06/14] supports multi-line directives for Source Generator

---
 .../src/main/scala/scala/build/Build.scala    |  2 +-
 .../src/main/scala/scala/build/Project.scala  | 62 ++++++-------------
 .../directives/SourceGenerator.scala          | 34 +++++-----
 ...eGenerator.scala => GeneratorConfig.scala} | 15 ++---
 .../options/SourceGeneratorOptions.scala      |  2 +-
 5 files changed, 41 insertions(+), 74 deletions(-)
 rename modules/options/src/main/scala/scala/build/options/{SourceGenerator.scala => GeneratorConfig.scala} (70%)

diff --git a/modules/build/src/main/scala/scala/build/Build.scala b/modules/build/src/main/scala/scala/build/Build.scala
index 9999ec31c5..0eed6e87a8 100644
--- a/modules/build/src/main/scala/scala/build/Build.scala
+++ b/modules/build/src/main/scala/scala/build/Build.scala
@@ -1017,7 +1017,7 @@ object Build {
       scope = scope,
       javaHomeOpt = Option(options.javaHomeLocation().value),
       javacOptions = javacOptions,
-      generateSource = hardcodedSource
+      generateSource = Option(sourceGeneratorConfig)
     )
     project
   }
diff --git a/modules/build/src/main/scala/scala/build/Project.scala b/modules/build/src/main/scala/scala/build/Project.scala
index 13d2f8cb66..075ee63222 100644
--- a/modules/build/src/main/scala/scala/build/Project.scala
+++ b/modules/build/src/main/scala/scala/build/Project.scala
@@ -29,7 +29,7 @@ final case class Project(
   javaHomeOpt: Option[os.Path],
   scope: Scope,
   javacOptions: List[String],
-  generateSource: Option[GeneratorConfig]
+  generateSource: Option[Seq[GeneratorConfig]]
 ) {
 
   import Project._
@@ -52,51 +52,25 @@ final case class Project(
       )
     }
 
-    val sourceGen0: Option[List[BloopConfig.SourceGenerator]] =
-      generateSource.map(config =>
-        println(s"Input Directory => ${config.inputDir}")
-        println(s"Globber => ${config.glob}")
-        println(s"Command File Path => ${config.commandFilePath}")
-        // val command0 = s"${os.pwd}/testing-a/${config.commandFilePath}"
-        val command0 = config.commandFilePath
-        val sourceGlobs0 = BloopConfig.SourcesGlobs(
-          // (os.pwd / "testing-a" / config.inputDir).toNIO,
-          Paths.get(config.inputDir),
-          None,
-          config.glob,
-          Nil
-        )
-
-        val sourceGen = BloopConfig.SourceGenerator(
-          List(sourceGlobs0),
-          (os.pwd / "testing-a" / "source-generator-output").toNIO,
-          // Paths.get(config.inputDir),
-          List("python3", command0)
-          // Nil
-        )
+    val sourceGenerator: Option[List[BloopConfig.SourceGenerator]] =
+      generateSource.map(configs =>
+        configs.map { config =>
+          val command0 = config.commandFilePath
+          val sourceGlobs0 = BloopConfig.SourcesGlobs(
+            Paths.get(config.inputDir),
+            None,
+            config.glob,
+            Nil
+          )
 
-        List(sourceGen)
+          BloopConfig.SourceGenerator(
+            List(sourceGlobs0),
+            (config.outputPath / "source-generator-output").toNIO,
+            List("python3", command0)
+          )
+        }.toList
       )
 
-    // val sourceGen: BloopConfig.SourceGenerator = {
-    //   val command = s"${os.pwd}/${generateSource.commandFilePath}"
-    //   val sourceGlobs = BloopConfig.SourcesGlobs(
-    //     (os.pwd / generateSource.inputDir).toNIO,
-    //     None,
-    //     List(generateSource.glob),
-    //     Nil
-    //   )
-
-    //   BloopConfig.SourceGenerator(
-    //     List(sourceGlobs),
-    //     (os.pwd / "testing-a" / "source-generator-output").toNIO,
-    //     List("python3", command)
-    //     // Nil
-    //   )
-    // }
-
-    
-
     baseBloopProject(
       projectName,
       directory.toNIO,
@@ -113,7 +87,7 @@ final case class Project(
         `scala` = scalaConfigOpt,
         java = Some(BloopConfig.Java(javacOptions)),
         resolution = resolution,
-        sourceGenerators = sourceGen0
+        sourceGenerators = sourceGenerator
       )
   }
 
diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index bf3ed88548..a2d60ee183 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -13,26 +13,26 @@ import scala.build.{Positioned, options}
 @DirectiveDescription("Generate code using Source Generator")
 @DirectiveLevel(SpecificationLevel.EXPERIMENTAL)
 final case class SourceGenerator(
-  sourceGenerator: DirectiveValueParser.WithScopePath[Option[Positioned[String]]] = DirectiveValueParser.WithScopePath.empty(None)
+  sourceGenerator: DirectiveValueParser.WithScopePath[List[Positioned[String]]] =
+    DirectiveValueParser.WithScopePath.empty(Nil)
 ) extends HasBuildOptions {
-  def buildOptions: Either[BuildException, BuildOptions] = either {
-    val sourceGen = sourceGenerator.value
-    
-    val maybeGenerateSource = sourceGen
-      .map(GeneratorConfig.parse)
-      .sequence
-
-    val generateSource = maybeGenerateSource match {
-      case Left(buildException) => throw buildException
-      case Right(config) => config
-    }
-
-    BuildOptions(sourceGeneratorOptions =
-      SourceGeneratorOptions(generatorConfig = generateSource)
-    )
-  }
+  def buildOptions: Either[BuildException, BuildOptions] =
+    SourceGenerator.buildOptions(sourceGenerator)
 }
 
 object SourceGenerator {
   val handler: DirectiveHandler[SourceGenerator] = DirectiveHandler.derive
+  def buildOptions(sourceGenerator: DirectiveValueParser.WithScopePath[List[Positioned[String]]])
+    : Either[BuildException, BuildOptions] = {
+    val sourceGenValue = sourceGenerator.value
+    sourceGenValue
+      .map(config => GeneratorConfig.parse(config, sourceGenerator.scopePath.subPath))
+      .sequence
+      .left.map(CompositeBuildException(_))
+      .map { configs =>
+        BuildOptions(sourceGeneratorOptions =
+          SourceGeneratorOptions(generatorConfig = configs)
+        )
+      }
+  }
 }
diff --git a/modules/options/src/main/scala/scala/build/options/SourceGenerator.scala b/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
similarity index 70%
rename from modules/options/src/main/scala/scala/build/options/SourceGenerator.scala
rename to modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
index d80d857d44..5dc7bf606a 100644
--- a/modules/options/src/main/scala/scala/build/options/SourceGenerator.scala
+++ b/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
@@ -6,15 +6,16 @@ import scala.build.errors.{BuildException, MalformedInputError}
 final case class GeneratorConfig(
   inputDir: String,
   glob: List[String],
-  commandFilePath: String
+  commandFilePath: String,
+  outputPath: os.SubPath
 )
 
 object GeneratorConfig {
 
-  def parse(input: Positioned[String]): Either[BuildException, GeneratorConfig] =
+  def parse(input: Positioned[String], output: os.SubPath): Either[BuildException, GeneratorConfig] =
     input.value.split("\\|", 3) match {
       case Array(inputDir, glob, commandFilePath) =>
-        Right(GeneratorConfig(inputDir, List(glob), commandFilePath))
+        Right(GeneratorConfig(inputDir, List(glob), commandFilePath, output))
       case _ =>
         Left(
           new MalformedInputError(
@@ -25,12 +26,4 @@ object GeneratorConfig {
           )
         )
     }
-
-  // def formatPath(
-  //   inputDir: String,
-  //   glob: String,
-  //   commandFilePath: String,
-  // ): GeneratorConfig = {
-
-  // }
 }
diff --git a/modules/options/src/main/scala/scala/build/options/SourceGeneratorOptions.scala b/modules/options/src/main/scala/scala/build/options/SourceGeneratorOptions.scala
index 10177f94ff..50d8d98bc1 100644
--- a/modules/options/src/main/scala/scala/build/options/SourceGeneratorOptions.scala
+++ b/modules/options/src/main/scala/scala/build/options/SourceGeneratorOptions.scala
@@ -4,7 +4,7 @@ final case class SourceGeneratorOptions(
   useBuildInfo: Option[Boolean] = None,
   projectVersion: Option[String] = None,
   computeVersion: Option[ComputeVersion] = None,
-  generatorConfig: Option[GeneratorConfig] = None
+  generatorConfig: Seq[GeneratorConfig] = Nil,
 )
 
 object SourceGeneratorOptions {

From 15693d57a561f4a9d2edd51ff80f565a58e7d8d1 Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Wed, 17 Jul 2024 13:24:01 +0700
Subject: [PATCH 07/14] abstracts commandProcessor

---
 modules/build/src/main/scala/scala/build/Project.scala       | 2 +-
 .../src/main/scala/scala/build/options/GeneratorConfig.scala | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/modules/build/src/main/scala/scala/build/Project.scala b/modules/build/src/main/scala/scala/build/Project.scala
index 075ee63222..559841d346 100644
--- a/modules/build/src/main/scala/scala/build/Project.scala
+++ b/modules/build/src/main/scala/scala/build/Project.scala
@@ -66,7 +66,7 @@ final case class Project(
           BloopConfig.SourceGenerator(
             List(sourceGlobs0),
             (config.outputPath / "source-generator-output").toNIO,
-            List("python3", command0)
+            command0
           )
         }.toList
       )
diff --git a/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala b/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
index 5dc7bf606a..ac900f4eda 100644
--- a/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
+++ b/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
@@ -6,7 +6,7 @@ import scala.build.errors.{BuildException, MalformedInputError}
 final case class GeneratorConfig(
   inputDir: String,
   glob: List[String],
-  commandFilePath: String,
+  commandFilePath: List[String],
   outputPath: os.SubPath
 )
 
@@ -15,7 +15,8 @@ object GeneratorConfig {
   def parse(input: Positioned[String], output: os.SubPath): Either[BuildException, GeneratorConfig] =
     input.value.split("\\|", 3) match {
       case Array(inputDir, glob, commandFilePath) =>
-        Right(GeneratorConfig(inputDir, List(glob), commandFilePath, output))
+        val commandFileList = commandFilePath.split(" ").toList
+        Right(GeneratorConfig(inputDir, List(glob), commandFileList, output))
       case _ =>
         Left(
           new MalformedInputError(

From af2442131a4ff28b75a96c8c76bfd331a52c68db Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Mon, 22 Jul 2024 19:50:19 +0700
Subject: [PATCH 08/14] fix: renamed var on build.scala

---
 modules/build/src/main/scala/scala/build/Build.scala         | 2 +-
 .../scala/build/preprocessing/DirectivesPreprocessor.scala   | 5 +----
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/modules/build/src/main/scala/scala/build/Build.scala b/modules/build/src/main/scala/scala/build/Build.scala
index 0eed6e87a8..b2369fdf11 100644
--- a/modules/build/src/main/scala/scala/build/Build.scala
+++ b/modules/build/src/main/scala/scala/build/Build.scala
@@ -866,7 +866,7 @@ object Build {
       if (options.useBuildServer.getOrElse(true)) None
       else releaseFlag(options, compilerJvmVersionOpt, logger).map(_.toString)
 
-    val hardcodedSource = options.sourceGeneratorOptions.generatorConfig
+    val sourceGeneratorConfig = options.sourceGeneratorOptions.generatorConfig
 
     val scalaCompilerParamsOpt = artifacts.scalaOpt match {
       case Some(scalaArtifacts) =>
diff --git a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
index 40047f564b..3fda875977 100644
--- a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
+++ b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
@@ -45,6 +45,7 @@ case class DirectivesPreprocessor(
   def preprocess(extractedDirectives: ExtractedDirectives)
     : Either[BuildException, PreprocessedDirectives] = either {
     val ExtractedDirectives(directives, directivesPositions) = extractedDirectives
+    println(s"DirectivesPreprocessor: $directives")
 
     val (
       buildOptionsWithoutRequirements: PartiallyProcessedDirectives[BuildOptions],
@@ -78,9 +79,6 @@ case class DirectivesPreprocessor(
       )
     }
 
-    for (vals <- unusedDirectives) println(s"preprocess- ${vals.toString}  ${vals.key}") 
-
-
     val (optionsWithActualRequirements, optionsWithEmptyRequirements) =
       buildOptionsWithTargetRequirements.global.partition(_.requirements.nonEmpty)
     val summedOptionsWithNoRequirements =
@@ -140,7 +138,6 @@ case class DirectivesPreprocessor(
       .toMap
 
     val unused = directives.filter(d => !handlersMap.contains(d.key))
-    for (vals <- unused) println(s"${vals.toString}  ${vals.key}") 
 
     val res = directives
       .iterator

From dd9d66058f7af0e46bc9cf7614cc98809284b47e Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Wed, 31 Jul 2024 19:57:33 +0700
Subject: [PATCH 09/14] using new directive style

---
 .../DirectivesPreprocessor.scala              |   3 +-
 .../directives/DirectiveValueParser.scala     |   1 -
 .../directives/SourceGenerator.scala          | 103 +++++++++++++++---
 3 files changed, 91 insertions(+), 16 deletions(-)

diff --git a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
index 3fda875977..0494bfd989 100644
--- a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
+++ b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
@@ -45,8 +45,6 @@ case class DirectivesPreprocessor(
   def preprocess(extractedDirectives: ExtractedDirectives)
     : Either[BuildException, PreprocessedDirectives] = either {
     val ExtractedDirectives(directives, directivesPositions) = extractedDirectives
-    println(s"DirectivesPreprocessor: $directives")
-
     val (
       buildOptionsWithoutRequirements: PartiallyProcessedDirectives[BuildOptions],
       buildOptionsWithTargetRequirements: PartiallyProcessedDirectives[
@@ -129,6 +127,7 @@ case class DirectivesPreprocessor(
       else
         if handler.isExperimental && !shouldSuppressExperimentalFeatures then
           logger.experimentalWarning(scopedDirective.directive.toString, FeatureType.Directive)
+        // println(scopedDirective.cwd)
         handler.handleValues(scopedDirective, logger)
 
     val handlersMap = handlers
diff --git a/modules/directives/src/main/scala/scala/build/directives/DirectiveValueParser.scala b/modules/directives/src/main/scala/scala/build/directives/DirectiveValueParser.scala
index c25465fcff..866653ecaa 100644
--- a/modules/directives/src/main/scala/scala/build/directives/DirectiveValueParser.scala
+++ b/modules/directives/src/main/scala/scala/build/directives/DirectiveValueParser.scala
@@ -138,7 +138,6 @@ object DirectiveValueParser {
   given DirectiveSingleValueParser[String] =
     (key, value, scopePath, path) =>
       value.asString.toRight {
-        println("do we get here?")
         val pos = value.position(path)
         new MalformedDirectiveError(
           message =
diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index a2d60ee183..92efcc1cd4 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -1,5 +1,17 @@
 package scala.build.preprocessing.directives
 
+// Virtuslab Processor
+import com.virtuslab.using_directives.UsingDirectivesProcessor
+import com.virtuslab.using_directives.custom.model.{
+  BooleanValue,
+  EmptyValue,
+  StringValue,
+  UsingDirectives,
+  Value
+}
+import com.virtuslab.using_directives.custom.utils.ast._
+import scala.jdk.CollectionConverters.*
+
 import scala.cli.commands.SpecificationLevel
 import scala.build.directives.*
 import scala.build.EitherCps.{either, value}
@@ -8,31 +20,96 @@ import scala.build.errors.{BuildException, CompositeBuildException}
 import scala.build.options.{BuildOptions, SourceGeneratorOptions, GeneratorConfig}
 import scala.build.options.GeneratorConfig
 import scala.build.{Positioned, options}
+import scala.build.directives.DirectiveValueParser.WithScopePath
 
+@DirectiveGroupName("SourceGenerator")
+@DirectivePrefix("sourceGenerator.")
 @DirectiveUsage("//> using sourceGenerator", "`//> using sourceGenerator`")
 @DirectiveDescription("Generate code using Source Generator")
 @DirectiveLevel(SpecificationLevel.EXPERIMENTAL)
 final case class SourceGenerator(
-  sourceGenerator: DirectiveValueParser.WithScopePath[List[Positioned[String]]] =
-    DirectiveValueParser.WithScopePath.empty(Nil)
+  testy: DirectiveValueParser.WithScopePath[List[Positioned[String]]] =
+    DirectiveValueParser.WithScopePath.empty(Nil),
+  scripts: DirectiveValueParser.WithScopePath[List[Positioned[String]]] =
+    DirectiveValueParser.WithScopePath.empty(Nil),
+  excludeScripts: Option[Boolean] = None,
+  inputDirectory: DirectiveValueParser.WithScopePath[Option[Positioned[String]]] =
+    DirectiveValueParser.WithScopePath.empty(None),
+  glob: Option[Positioned[String]] = None,
+  commandProcessor: DirectiveValueParser.WithScopePath[Option[Positioned[String]]] =
+    DirectiveValueParser.WithScopePath.empty(None),
 ) extends HasBuildOptions {
   def buildOptions: Either[BuildException, BuildOptions] =
-    SourceGenerator.buildOptions(sourceGenerator)
+    // println(s"ScopePath of Scripts: ${scripts.scopePath}")
+    // println(s"Values of Scripts: ${scripts.value(0).value}")
+    // println(s"Values of InputDir: ${inputDirectory.value}")
+    SourceGenerator.buildOptions(testy,scripts)
 }
 
 object SourceGenerator {
   val handler: DirectiveHandler[SourceGenerator] = DirectiveHandler.derive
-  def buildOptions(sourceGenerator: DirectiveValueParser.WithScopePath[List[Positioned[String]]])
-    : Either[BuildException, BuildOptions] = {
-    val sourceGenValue = sourceGenerator.value
-    sourceGenValue
-      .map(config => GeneratorConfig.parse(config, sourceGenerator.scopePath.subPath))
-      .sequence
-      .left.map(CompositeBuildException(_))
-      .map { configs =>
-        BuildOptions(sourceGeneratorOptions =
-          SourceGeneratorOptions(generatorConfig = configs)
+  def buildOptions(
+    sourceGenerator: DirectiveValueParser.WithScopePath[List[Positioned[String]]],
+    scripts: DirectiveValueParser.WithScopePath[List[Positioned[String]]]
+  ): Either[BuildException, BuildOptions] = {
+    val proc = UsingDirectivesProcessor()
+    val scriptConvert = scripts.value
+      .map(script => os.Path(script.value))
+      .map(os.read(_))
+      .map(_.toCharArray())
+      .map(proc.extract(_).asScala)
+      .map(_.headOption)
+
+    // println(scriptConvert.size)
+
+    def modify(script: Option[UsingDirectives]) = {
+      script.toSeq.flatMap { directives =>
+        def toStrictValue(value: UsingValue): Seq[Value[_]] = value match {
+          case uvs: UsingValues   => uvs.values.asScala.toSeq.flatMap(toStrictValue)
+          case el: EmptyLiteral   => Seq(EmptyValue(el))
+          case sl: StringLiteral  => Seq(StringValue(sl.getValue(), sl))
+          case bl: BooleanLiteral => Seq(BooleanValue(bl.getValue(), bl))
+        }
+        def toStrictDirective(ud: UsingDef) = StrictDirective(
+          ud.getKey(),
+          toStrictValue(ud.getValue()),
+          ud.getPosition().getColumn()
         )
+
+        // println(directives.getAst())
+
+        directives.getAst match
+          case uds: UsingDefs => uds.getUsingDefs.asScala.toSeq.map(toStrictDirective)
+          case _              => Nil // There should be nothing else here other than UsingDefs
       }
+    }
+
+    val strictDirectives = scriptConvert
+    .map(modify(_))
+    .map(_.take(3))
+
+    // println(scripts.scopePath.subPath)
+    // strictDirectives.map(f => f.map(w => println(w)))
+
+    val directive = strictDirectives.collect {
+      case Seq(inputDir, glob, processor) => 
+        GeneratorConfig(inputDir.values.mkString, List(glob.values.mkString), processor.values.mkString.split(" ").toList,scripts.scopePath.subPath)
+    }
+    println(directive.size)
+
+    // val sourceGenValue = sourceGenerator.value
+    // sourceGenValue
+    //   .map(config => GeneratorConfig.parse(config, sourceGenerator.scopePath.subPath))
+    //   .sequence
+    //   .left.map(CompositeBuildException(_))
+    //   .map { configs =>
+    //     BuildOptions(sourceGeneratorOptions =
+    //       SourceGeneratorOptions(generatorConfig = configs)
+    //     )
+    //   }
+    
+    // directive.map { f => println(f)}
+
+    Right(BuildOptions(sourceGeneratorOptions = SourceGeneratorOptions(generatorConfig = directive)))
   }
 }

From 5758cc8e296cb96ecd8c351289966dfe2503a5b4 Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Tue, 6 Aug 2024 21:17:52 +0700
Subject: [PATCH 10/14] working wip

---
 .../src/main/scala/scala/build/Project.scala  |  3 +-
 .../directives/DirectiveSpecialSyntax.scala   |  1 +
 .../directives/SourceGenerator.scala          | 35 +++++++++++--------
 .../scala/build/options/GeneratorConfig.scala | 32 ++++++++---------
 4 files changed, 39 insertions(+), 32 deletions(-)

diff --git a/modules/build/src/main/scala/scala/build/Project.scala b/modules/build/src/main/scala/scala/build/Project.scala
index 559841d346..23a1abd1b9 100644
--- a/modules/build/src/main/scala/scala/build/Project.scala
+++ b/modules/build/src/main/scala/scala/build/Project.scala
@@ -63,10 +63,11 @@ final case class Project(
             Nil
           )
 
+          println(s"This is script path ${command0}")
           BloopConfig.SourceGenerator(
             List(sourceGlobs0),
             (config.outputPath / "source-generator-output").toNIO,
-            command0
+            List("/Users/kiki/Kerja/scala-cli/testing-a/scala-cli",  "--power", "run", command0)
           )
         }.toList
       )
diff --git a/modules/directives/src/main/scala/scala/build/directives/DirectiveSpecialSyntax.scala b/modules/directives/src/main/scala/scala/build/directives/DirectiveSpecialSyntax.scala
index 892fa770e5..3004ecbabf 100644
--- a/modules/directives/src/main/scala/scala/build/directives/DirectiveSpecialSyntax.scala
+++ b/modules/directives/src/main/scala/scala/build/directives/DirectiveSpecialSyntax.scala
@@ -21,6 +21,7 @@ object DirectiveSpecialSyntax {
     val pattern = """(((?:\$)+)(\{\.\}))""".r
     path match {
       case Right(p) =>
+        println(p)
         pattern.replaceAllIn(
           directiveValue,
           (m: Regex.Match) => {
diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index 92efcc1cd4..e317847854 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -36,20 +36,17 @@ final case class SourceGenerator(
   inputDirectory: DirectiveValueParser.WithScopePath[Option[Positioned[String]]] =
     DirectiveValueParser.WithScopePath.empty(None),
   glob: Option[Positioned[String]] = None,
-  commandProcessor: DirectiveValueParser.WithScopePath[Option[Positioned[String]]] =
-    DirectiveValueParser.WithScopePath.empty(None),
 ) extends HasBuildOptions {
   def buildOptions: Either[BuildException, BuildOptions] =
     // println(s"ScopePath of Scripts: ${scripts.scopePath}")
     // println(s"Values of Scripts: ${scripts.value(0).value}")
     // println(s"Values of InputDir: ${inputDirectory.value}")
-    SourceGenerator.buildOptions(testy,scripts)
+    SourceGenerator.buildOptions(scripts)
 }
 
 object SourceGenerator {
   val handler: DirectiveHandler[SourceGenerator] = DirectiveHandler.derive
   def buildOptions(
-    sourceGenerator: DirectiveValueParser.WithScopePath[List[Positioned[String]]],
     scripts: DirectiveValueParser.WithScopePath[List[Positioned[String]]]
   ): Either[BuildException, BuildOptions] = {
     val proc = UsingDirectivesProcessor()
@@ -84,18 +81,25 @@ object SourceGenerator {
       }
     }
 
-    val strictDirectives = scriptConvert
-    .map(modify(_))
-    .map(_.take(3))
+    val componentKeyword = Seq("inputDirectory", "glob")
+    val strictDirectives = scriptConvert.map(modify(_))
 
-    // println(scripts.scopePath.subPath)
-    // strictDirectives.map(f => f.map(w => println(w)))
+    val generatorComponents = strictDirectives.map(directiveSeq =>
+      directiveSeq.filter(rawDirective =>
+        componentKeyword.exists(keyword => rawDirective.key.contains(keyword))
+      )
+    )
 
-    val directive = strictDirectives.collect {
-      case Seq(inputDir, glob, processor) => 
-        GeneratorConfig(inputDir.values.mkString, List(glob.values.mkString), processor.values.mkString.split(" ").toList,scripts.scopePath.subPath)
+    // generatorComponents.map(f => f.map(g => println(g.values)))
+    val directive = generatorComponents.collect {
+      case Seq(inputDir, glob) =>
+        GeneratorConfig(
+          inputDir.values.mkString,
+          List(glob.values.mkString),
+          scripts.value(0).value,
+          scripts.scopePath.subPath
+        )
     }
-    println(directive.size)
 
     // val sourceGenValue = sourceGenerator.value
     // sourceGenValue
@@ -107,9 +111,10 @@ object SourceGenerator {
     //       SourceGeneratorOptions(generatorConfig = configs)
     //     )
     //   }
-    
     // directive.map { f => println(f)}
 
-    Right(BuildOptions(sourceGeneratorOptions = SourceGeneratorOptions(generatorConfig = directive)))
+    Right(BuildOptions(sourceGeneratorOptions =
+      SourceGeneratorOptions(generatorConfig = directive)
+    ))
   }
 }
diff --git a/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala b/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
index ac900f4eda..7b59db3483 100644
--- a/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
+++ b/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
@@ -6,25 +6,25 @@ import scala.build.errors.{BuildException, MalformedInputError}
 final case class GeneratorConfig(
   inputDir: String,
   glob: List[String],
-  commandFilePath: List[String],
+  commandFilePath: String,
   outputPath: os.SubPath
 )
 
 object GeneratorConfig {
 
-  def parse(input: Positioned[String], output: os.SubPath): Either[BuildException, GeneratorConfig] =
-    input.value.split("\\|", 3) match {
-      case Array(inputDir, glob, commandFilePath) =>
-        val commandFileList = commandFilePath.split(" ").toList
-        Right(GeneratorConfig(inputDir, List(glob), commandFileList, output))
-      case _ =>
-        Left(
-          new MalformedInputError(
-            "sourceGenerator",
-            input.value,
-            "inputDir|glob|commandFilePath",
-            input.positions
-          )
-        )
-    }
+  // def parse(input: Positioned[String], output: os.SubPath): Either[BuildException, GeneratorConfig] =
+  //   input.value.split("\\|", 3) match {
+  //     case Array(inputDir, glob, commandFilePath) =>
+  //       val commandFileList = commandFilePath.split(" ").toList
+  //       Right(GeneratorConfig(inputDir, List(glob), commandFileList, output))
+  //     case _ =>
+  //       Left(
+  //         new MalformedInputError(
+  //           "sourceGenerator",
+  //           input.value,
+  //           "inputDir|glob|commandFilePath",
+  //           input.positions
+  //         )
+  //       )
+  //   }
 }

From 67941bfaf571aa383c51412add75892358be81e4 Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Sun, 18 Aug 2024 20:07:15 +0700
Subject: [PATCH 11/14] add excludescript

---
 .../src/main/scala/scala/build/Project.scala  |  3 +-
 .../directives/DirectiveSpecialSyntax.scala   |  1 -
 .../directives/SourceGenerator.scala          | 59 +++++++++++--------
 3 files changed, 37 insertions(+), 26 deletions(-)

diff --git a/modules/build/src/main/scala/scala/build/Project.scala b/modules/build/src/main/scala/scala/build/Project.scala
index 23a1abd1b9..3e3eaf975d 100644
--- a/modules/build/src/main/scala/scala/build/Project.scala
+++ b/modules/build/src/main/scala/scala/build/Project.scala
@@ -63,11 +63,10 @@ final case class Project(
             Nil
           )
 
-          println(s"This is script path ${command0}")
           BloopConfig.SourceGenerator(
             List(sourceGlobs0),
             (config.outputPath / "source-generator-output").toNIO,
-            List("/Users/kiki/Kerja/scala-cli/testing-a/scala-cli",  "--power", "run", command0)
+            List("/Users/kiki/Kerja/scala-cli/testing-a/scala-cli", "run", command0, "--power", "--")
           )
         }.toList
       )
diff --git a/modules/directives/src/main/scala/scala/build/directives/DirectiveSpecialSyntax.scala b/modules/directives/src/main/scala/scala/build/directives/DirectiveSpecialSyntax.scala
index 3004ecbabf..892fa770e5 100644
--- a/modules/directives/src/main/scala/scala/build/directives/DirectiveSpecialSyntax.scala
+++ b/modules/directives/src/main/scala/scala/build/directives/DirectiveSpecialSyntax.scala
@@ -21,7 +21,6 @@ object DirectiveSpecialSyntax {
     val pattern = """(((?:\$)+)(\{\.\}))""".r
     path match {
       case Right(p) =>
-        println(p)
         pattern.replaceAllIn(
           directiveValue,
           (m: Regex.Match) => {
diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index e317847854..923e4bd152 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -21,6 +21,9 @@ import scala.build.options.{BuildOptions, SourceGeneratorOptions, GeneratorConfi
 import scala.build.options.GeneratorConfig
 import scala.build.{Positioned, options}
 import scala.build.directives.DirectiveValueParser.WithScopePath
+import scala.util.matching.Regex
+import java.nio.file.Paths
+import scala.build.options.InternalOptions
 
 @DirectiveGroupName("SourceGenerator")
 @DirectivePrefix("sourceGenerator.")
@@ -35,19 +38,17 @@ final case class SourceGenerator(
   excludeScripts: Option[Boolean] = None,
   inputDirectory: DirectiveValueParser.WithScopePath[Option[Positioned[String]]] =
     DirectiveValueParser.WithScopePath.empty(None),
-  glob: Option[Positioned[String]] = None,
+  glob: Option[Positioned[String]] = None
 ) extends HasBuildOptions {
   def buildOptions: Either[BuildException, BuildOptions] =
-    // println(s"ScopePath of Scripts: ${scripts.scopePath}")
-    // println(s"Values of Scripts: ${scripts.value(0).value}")
-    // println(s"Values of InputDir: ${inputDirectory.value}")
-    SourceGenerator.buildOptions(scripts)
+    SourceGenerator.buildOptions(scripts, excludeScripts)
 }
 
 object SourceGenerator {
   val handler: DirectiveHandler[SourceGenerator] = DirectiveHandler.derive
   def buildOptions(
-    scripts: DirectiveValueParser.WithScopePath[List[Positioned[String]]]
+    scripts: DirectiveValueParser.WithScopePath[List[Positioned[String]]],
+    excludeScripts: Option[Boolean]
   ): Either[BuildException, BuildOptions] = {
     val proc = UsingDirectivesProcessor()
     val scriptConvert = scripts.value
@@ -57,9 +58,12 @@ object SourceGenerator {
       .map(proc.extract(_).asScala)
       .map(_.headOption)
 
-    // println(scriptConvert.size)
+    val scriptsValue = scripts.value
+      .map(script =>
+        os.Path(script.value)
+      )
 
-    def modify(script: Option[UsingDirectives]) = {
+    def modify(script: Option[UsingDirectives]) =
       script.toSeq.flatMap { directives =>
         def toStrictValue(value: UsingValue): Seq[Value[_]] = value match {
           case uvs: UsingValues   => uvs.values.asScala.toSeq.flatMap(toStrictValue)
@@ -79,6 +83,20 @@ object SourceGenerator {
           case uds: UsingDefs => uds.getUsingDefs.asScala.toSeq.map(toStrictDirective)
           case _              => Nil // There should be nothing else here other than UsingDefs
       }
+
+    def replaceSpecialSyntax(directiveValue: String, path: os.Path): String = {
+      val pattern = """(((?:\$)+)(\{\.\}))""".r
+      pattern.replaceAllIn(
+        directiveValue,
+        (m: Regex.Match) => {
+          val dollarSigns = m.group(2)
+          val dollars     = "\\$" * (dollarSigns.length / 2)
+          if (dollarSigns.length % 2 == 0)
+            s"$dollars${m.group(3)}"
+          else
+            s"$dollars${path / os.up}"
+        }
+      )
     }
 
     val componentKeyword = Seq("inputDirectory", "glob")
@@ -90,31 +108,26 @@ object SourceGenerator {
       )
     )
 
-    // generatorComponents.map(f => f.map(g => println(g.values)))
+    val pathModifier = scriptsValue.iterator
     val directive = generatorComponents.collect {
       case Seq(inputDir, glob) =>
+        val relPath = pathModifier.next()
         GeneratorConfig(
-          inputDir.values.mkString,
+          replaceSpecialSyntax(inputDir.values.mkString, relPath),
           List(glob.values.mkString),
           scripts.value(0).value,
           scripts.scopePath.subPath
         )
     }
 
-    // val sourceGenValue = sourceGenerator.value
-    // sourceGenValue
-    //   .map(config => GeneratorConfig.parse(config, sourceGenerator.scopePath.subPath))
-    //   .sequence
-    //   .left.map(CompositeBuildException(_))
-    //   .map { configs =>
-    //     BuildOptions(sourceGeneratorOptions =
-    //       SourceGeneratorOptions(generatorConfig = configs)
-    //     )
-    //   }
-    // directive.map { f => println(f)}
+    val excludedGeneratorPath = excludeScripts.match {
+      case Some(true) => scripts.value
+      case _          => List.empty[Positioned[String]]
+    }
 
-    Right(BuildOptions(sourceGeneratorOptions =
-      SourceGeneratorOptions(generatorConfig = directive)
+    Right(BuildOptions(
+      sourceGeneratorOptions = SourceGeneratorOptions(generatorConfig = directive),
+      internal = InternalOptions(exclude = excludedGeneratorPath)
     ))
   }
 }

From 947efa3ffbd83589b8aeda5c12a5d56ab0641752 Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Sun, 18 Aug 2024 23:29:58 +0700
Subject: [PATCH 12/14] refactor: sourceGenerator variable name

---
 .../directives/SourceGenerator.scala          | 34 ++++++++++---------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index 923e4bd152..84275a83df 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -50,20 +50,20 @@ object SourceGenerator {
     scripts: DirectiveValueParser.WithScopePath[List[Positioned[String]]],
     excludeScripts: Option[Boolean]
   ): Either[BuildException, BuildOptions] = {
-    val proc = UsingDirectivesProcessor()
-    val scriptConvert = scripts.value
+    val directiveProcessor = UsingDirectivesProcessor()
+    val parsedDirectives = scripts.value
       .map(script => os.Path(script.value))
       .map(os.read(_))
       .map(_.toCharArray())
-      .map(proc.extract(_).asScala)
+      .map(directiveProcessor.extract(_).asScala)
       .map(_.headOption)
 
-    val scriptsValue = scripts.value
+    val scriptPaths = scripts.value
       .map(script =>
         os.Path(script.value)
       )
 
-    def modify(script: Option[UsingDirectives]) =
+    def processDirectives(script: Option[UsingDirectives]) =
       script.toSeq.flatMap { directives =>
         def toStrictValue(value: UsingValue): Seq[Value[_]] = value match {
           case uvs: UsingValues   => uvs.values.asScala.toSeq.flatMap(toStrictValue)
@@ -77,8 +77,6 @@ object SourceGenerator {
           ud.getPosition().getColumn()
         )
 
-        // println(directives.getAst())
-
         directives.getAst match
           case uds: UsingDefs => uds.getUsingDefs.asScala.toSeq.map(toStrictDirective)
           case _              => Nil // There should be nothing else here other than UsingDefs
@@ -98,20 +96,24 @@ object SourceGenerator {
         }
       )
     }
+    val processedDirectives = parsedDirectives.map(processDirectives(_))
 
-    val componentKeyword = Seq("inputDirectory", "glob")
-    val strictDirectives = scriptConvert.map(modify(_))
-
-    val generatorComponents = strictDirectives.map(directiveSeq =>
+    val sourceGeneratorKeywords = Seq("inputDirectory", "glob")
+    val sourceGeneratorDirectives = processedDirectives.map(directiveSeq =>
       directiveSeq.filter(rawDirective =>
-        componentKeyword.exists(keyword => rawDirective.key.contains(keyword))
+        sourceGeneratorKeywords.exists(keyword => rawDirective.key.contains(keyword))
       )
     )
 
-    val pathModifier = scriptsValue.iterator
-    val directive = generatorComponents.collect {
+    sourceGeneratorDirectives.foreach { components =>
+      if (components.length != components.distinct.length)
+        throw new IllegalArgumentException(s"Duplicate elements found in sequence: $components")
+    }
+
+    val pathIterator = scriptPaths.iterator
+    val generatorConfigs = sourceGeneratorDirectives.collect {
       case Seq(inputDir, glob) =>
-        val relPath = pathModifier.next()
+        val relPath = pathIterator.next()
         GeneratorConfig(
           replaceSpecialSyntax(inputDir.values.mkString, relPath),
           List(glob.values.mkString),
@@ -126,7 +128,7 @@ object SourceGenerator {
     }
 
     Right(BuildOptions(
-      sourceGeneratorOptions = SourceGeneratorOptions(generatorConfig = directive),
+      sourceGeneratorOptions = SourceGeneratorOptions(generatorConfig = generatorConfigs),
       internal = InternalOptions(exclude = excludedGeneratorPath)
     ))
   }

From ffbc59aadbee480c12b8e3624f398198caf64075 Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Mon, 19 Aug 2024 18:09:06 +0700
Subject: [PATCH 13/14] remove comments

---
 .../DirectivesPreprocessor.scala              |  1 -
 .../scala/build/options/GeneratorConfig.scala | 19 -------------------
 2 files changed, 20 deletions(-)

diff --git a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
index 0494bfd989..cda127e6cc 100644
--- a/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
+++ b/modules/build/src/main/scala/scala/build/preprocessing/DirectivesPreprocessor.scala
@@ -127,7 +127,6 @@ case class DirectivesPreprocessor(
       else
         if handler.isExperimental && !shouldSuppressExperimentalFeatures then
           logger.experimentalWarning(scopedDirective.directive.toString, FeatureType.Directive)
-        // println(scopedDirective.cwd)
         handler.handleValues(scopedDirective, logger)
 
     val handlersMap = handlers
diff --git a/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala b/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
index 7b59db3483..af87b14777 100644
--- a/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
+++ b/modules/options/src/main/scala/scala/build/options/GeneratorConfig.scala
@@ -9,22 +9,3 @@ final case class GeneratorConfig(
   commandFilePath: String,
   outputPath: os.SubPath
 )
-
-object GeneratorConfig {
-
-  // def parse(input: Positioned[String], output: os.SubPath): Either[BuildException, GeneratorConfig] =
-  //   input.value.split("\\|", 3) match {
-  //     case Array(inputDir, glob, commandFilePath) =>
-  //       val commandFileList = commandFilePath.split(" ").toList
-  //       Right(GeneratorConfig(inputDir, List(glob), commandFileList, output))
-  //     case _ =>
-  //       Left(
-  //         new MalformedInputError(
-  //           "sourceGenerator",
-  //           input.value,
-  //           "inputDir|glob|commandFilePath",
-  //           input.positions
-  //         )
-  //       )
-  //   }
-}

From e2c50093ca068858ebdc04c7f916750f6c288949 Mon Sep 17 00:00:00 2001
From: Rizky Maulana <71255973+Perklone@users.noreply.github.com>
Date: Wed, 21 Aug 2024 20:02:53 +0700
Subject: [PATCH 14/14] don't allow duplicate directives inside generator files

---
 .../directives/SourceGenerator.scala          | 24 ++++++++++---------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
index 84275a83df..e71dd62f21 100644
--- a/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
+++ b/modules/directives/src/main/scala/scala/build/preprocessing/directives/SourceGenerator.scala
@@ -58,11 +58,6 @@ object SourceGenerator {
       .map(directiveProcessor.extract(_).asScala)
       .map(_.headOption)
 
-    val scriptPaths = scripts.value
-      .map(script =>
-        os.Path(script.value)
-      )
-
     def processDirectives(script: Option[UsingDirectives]) =
       script.toSeq.flatMap { directives =>
         def toStrictValue(value: UsingValue): Seq[Value[_]] = value match {
@@ -96,6 +91,13 @@ object SourceGenerator {
         }
       )
     }
+
+    def checkForDuplicateDirective(listOfDirective: Seq[StrictDirective]): Unit = {
+      val directiveKeys = listOfDirective.map(directive => directive.key)
+      if (directiveKeys.length != directiveKeys.distinct.length)
+        throw new IllegalArgumentException(s"Duplicate directives found in generator files.")
+    }
+
     val processedDirectives = parsedDirectives.map(processDirectives(_))
 
     val sourceGeneratorKeywords = Seq("inputDirectory", "glob")
@@ -105,15 +107,15 @@ object SourceGenerator {
       )
     )
 
-    sourceGeneratorDirectives.foreach { components =>
-      if (components.length != components.distinct.length)
-        throw new IllegalArgumentException(s"Duplicate elements found in sequence: $components")
-    }
+    sourceGeneratorDirectives.foreach(components => checkForDuplicateDirective(components))
+
+    val scriptPathIterator = scripts.value.map(script =>
+      os.Path(script.value)
+    ).iterator
 
-    val pathIterator = scriptPaths.iterator
     val generatorConfigs = sourceGeneratorDirectives.collect {
       case Seq(inputDir, glob) =>
-        val relPath = pathIterator.next()
+        val relPath = scriptPathIterator.next()
         GeneratorConfig(
           replaceSpecialSyntax(inputDir.values.mkString, relPath),
           List(glob.values.mkString),