build libraries from source

Author: lihaoyi

compiler/src/dotty/tools/repl/Rendering.scala

@@ -95,7 +95,7 @@ private[repl] class Rendering(parentClassLoader: Option[ClassLoader] = None):
 
   /** Return a String representation of a value we got from `classLoader()`. */
   private[repl] def replStringOf(sym: Symbol, value: Object)(using Context): String =
-    pprint.PPrinter.BlackWhite.apply(value).toString
+    dotty.shaded.pprint.PPrinter.BlackWhite.apply(value).toString
 
   /** Load the value of the symbol using reflection.
    *

project/Build.scala

@@ -719,9 +719,31 @@ object Build {
         "org.jline" % "jline-terminal" % "3.29.0",
         "org.jline" % "jline-terminal-jni" % "3.29.0", // needed for Windows
         ("io.get-coursier" %% "coursier" % "2.0.16" % Test).cross(CrossVersion.for3Use2_13),
-        ("com.lihaoyi" %% "pprint" % "0.9.3").exclude("org.scala-lang", "*"),
       ),
 
+      (Compile / sourceGenerators) += Def.task {
+        val downloads = Seq(
+          "https://repo1.maven.org/maven2/com/lihaoyi/pprint_3/0.9.3/pprint_3-0.9.3-sources.jar",
+          "https://repo1.maven.org/maven2/com/lihaoyi/fansi_3/0.5.1/fansi_3-0.5.1-sources.jar",
+          "https://repo1.maven.org/maven2/com/lihaoyi/sourcecode_3/0.4.3-M5/sourcecode_3-0.4.3-M5-sources.jar",
+        )
+        val sourceManagedPath = os.Path((Compile / sourceManaged).value)
+        for(download <- downloads) os.unzip.stream(requests.get.stream(download), dest = sourceManagedPath)
+        for(file <- os.walk(sourceManagedPath) if file.ext == "scala") yield{
+          val text = os.read(file)
+          if (!text.contains("package scala")){
+            os.write.over(
+              file,
+              "package dotty.shaded\n" +
+                text
+                  .replace("_root_.pprint", "_root_.dotty.shaded.pprint")
+                  .replace("_root_.fansi", "_root_.dotty.shaded.fansi")
+            )
+          }
+          file.toIO
+        }
+      }.taskValue,
+
       // For convenience, change the baseDirectory when running the compiler
       Compile / forkOptions := (Compile / forkOptions).value.withWorkingDirectory((ThisBuild / baseDirectory).value),
       Compile / run / forkOptions := (Compile / run / forkOptions).value.withWorkingDirectory((ThisBuild / baseDirectory).value),

project/build.sbt

@@ -1,4 +1,6 @@
 // Used by VersionUtil to get gitHash and commitDate
 libraryDependencies += "org.eclipse.jgit" % "org.eclipse.jgit" % "4.11.0.201803080745-r"
+libraryDependencies += "com.lihaoyi" %% "requests" % "0.9.0"
+libraryDependencies += "com.lihaoyi" %% "os-lib" % "0.11.5"
 
 libraryDependencies += Dependencies.`jackson-databind`