Add plugin option for global filters

build.sbt

@@ -6,9 +6,9 @@ val saveTestClasspath = taskKey[File](
 
 val commonSettings = Seq(
   organization := "com.github.ghik",
-  version := "1.1",
+  version := "1.2-SNAPSHOT",
   scalaVersion := "2.12.6",
-  crossScalaVersions := Seq("2.11.12", "2.12.6", "2.13.0-M4"),
+  crossScalaVersions := Seq("2.11.12", scalaVersion.value, "2.13.0-M4"),
   projectInfo := ModuleInfo(
     nameFormal = "Silencer",
     description = "Scala compiler plugin for annotation-based warning suppression",

project/build.properties

@@ -1 +1 @@
-sbt.version=1.1.5
+sbt.version=1.2.1

silencer-plugin/src/main/scala/com/github/ghik/silencer/SilencerPlugin.scala

@@ -1,16 +1,34 @@
 package com.github.ghik.silencer
 
+import scala.util.matching.Regex
+
 import scala.reflect.internal.util.Position
 import scala.tools.nsc.plugins.{Plugin, PluginComponent}
 import scala.tools.nsc.{Global, Phase}
 
 class SilencerPlugin(val global: Global) extends Plugin { plugin =>
-  val name = "SilencerPlugin"
+  val name = "silencer"
   val description = "Scala compiler plugin for warning suppression"
   val components: List[PluginComponent] = List(component)
+  private var globalFilters = List.empty[Regex]
+
+  private lazy val reporter =
+    new SuppressingReporter(global.reporter, globalFilters)
+
+  override def processOptions(options: List[String], error: String => Unit): Unit = {
+    options.foreach { opt =>
+      if (opt startsWith "globalFilters=") {
+        globalFilters = opt.drop(14).split(";").map(_.r).toList
+      }
+    }
+
+    global.inform(s"""Silencer using global filters: ${globalFilters.mkString(",")}""")
+
+    global.reporter = reporter
+  }
 
-  private val reporter = new SuppressingReporter(global.reporter)
-  global.reporter = reporter
+  override val optionsHelp: Option[String] = Some(
+    "  -P:silencer:globalFilters=...             Semi-colon separated patterns to filter the warning messages")
 
   private object component extends PluginComponent {
     val global: plugin.global.type = plugin.global

silencer-plugin/src/main/scala/com/github/ghik/silencer/SuppressingReporter.scala

@@ -1,11 +1,14 @@
 package com.github.ghik.silencer
 
-import scala.collection.mutable
-import scala.collection.mutable.ArrayBuffer
+import scala.util.matching.Regex
+
+import scala.collection.mutable, mutable.ArrayBuffer
+
 import scala.reflect.internal.util.{Position, SourceFile}
 import scala.tools.nsc.reporters.Reporter
 
-class SuppressingReporter(original: Reporter) extends Reporter {
+class SuppressingReporter(original: Reporter, globalFilters: List[Regex]) extends Reporter {
+
   private val deferredWarnings = new mutable.HashMap[SourceFile, ArrayBuffer[(Position, String)]]
   private val suppressedRanges = new mutable.HashMap[SourceFile, List[Position]]
 
@@ -28,6 +31,8 @@ class SuppressingReporter(original: Reporter) extends Reporter {
     severity match {
       case INFO =>
         original.info(pos, msg, force)
+      case WARNING if globalFilters.exists(_.findFirstIn(msg).isDefined) =>
+        ()
       case WARNING if !pos.isDefined =>
         original.warning(pos, msg)
       case WARNING if !suppressedRanges.contains(pos.source) =>

silencer-plugin/src/test/scala/com/github/ghik/silencer/SilencerPluginTest.scala

@@ -13,8 +13,13 @@ class SilencerPluginTest extends FunSuite { suite =>
 
   val testdata = "silencer-plugin/testdata/"
   val settings = new Settings
+
   settings.deprecation.value = true
 
+
+  settings.pluginOptions.value = settings.pluginOptions.value :+ (
+    "silencer:globalFilters=depreFunc1\\ in\\ object\\ globallyFiltered\\ is\\ deprecated;useless.*filter")
+
   Option(getClass.getResourceAsStream("/embeddedcp")) match {
     case Some(is) =>
       Source.fromInputStream(is).getLines().foreach(settings.classpath.append)
@@ -68,10 +73,12 @@ class SilencerPluginTest extends FunSuite { suite =>
   test("macro expandee") {
     testFile("macroExpandeeSuppression.scala", 1)
   }
+  test("global filters") {
+    testFile("globallyFiltered.scala", 1)
+  }
   test("multiple files compilation") {
     val files = new File(testdata).listFiles().filter(_.isFile).map(_.getName)
     compile(files: _*)
     assertWarnings(files.length)
   }
-
 }

silencer-plugin/testdata/classSuppression.scala

@@ -2,7 +2,6 @@ package testdata
 
 import com.github.ghik.silencer.silent
 
-
 object classSuppression {
   @silent
   class suppressed {

silencer-plugin/testdata/globallyFiltered.scala

@@ -0,0 +1,15 @@
+package testdata
+
+object globallyFiltered {
+  class notSuppressed {
+    def method1(): Unit = depreFunc1() // global filter ignore this one
+
+    def method2(): Unit = depreFunc2() // not suppressed, no filter
+  }
+
+  @deprecated("", "")
+  private def depreFunc1() = print("ignored")
+
+  @deprecated("", "")
+  private def depreFunc2() = print("warning")
+}