104 lines
3.9 KiB
Scala
104 lines
3.9 KiB
Scala
/*
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* Copyright (C) 2018-2021 Lightbend Inc. <https://www.lightbend.com>
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*/
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package akka
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import akka.AkkaValidatePullRequest.additionalTasks
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import de.heikoseeberger.sbtheader.HeaderPlugin.autoImport._
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import de.heikoseeberger.sbtheader.{ CommentCreator, HeaderPlugin }
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import com.typesafe.sbt.MultiJvmPlugin.MultiJvmKeys._
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import sbt.Keys._
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import sbt.{ Def, _ }
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trait CopyrightHeader extends AutoPlugin {
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override def requires: Plugins = HeaderPlugin
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override def trigger: PluginTrigger = allRequirements
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protected def headerMappingSettings: Seq[Def.Setting[_]] =
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Seq(Compile, Test, MultiJvm).flatMap { config =>
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inConfig(config)(
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Seq(
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headerLicense := Some(HeaderLicense.Custom(headerFor(CurrentYear))),
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headerMappings := headerMappings.value ++ Map(
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HeaderFileType.scala -> cStyleComment,
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HeaderFileType.java -> cStyleComment,
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HeaderFileType("template") -> cStyleComment)))
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}
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override def projectSettings: Seq[Def.Setting[_]] = Def.settings(headerMappingSettings, additional)
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def additional: Seq[Def.Setting[_]] = Def.settings((compile in Compile) := {
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(headerCreate in Compile).value
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(compile in Compile).value
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}, (compile in Test) := {
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(headerCreate in Test).value
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(compile in Test).value
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})
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// We hard-code this so PR's created in year X will not suddenly fail in X+1.
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// Of course we should remember to update it early in the year.
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val CurrentYear = "2021"
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val CopyrightPattern = "Copyright \\([Cc]\\) (\\d{4}([-–]\\d{4})?) (Lightbend|Typesafe) Inc. <.*>".r
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val CopyrightHeaderPattern = s"(?s).*${CopyrightPattern}.*".r
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def headerFor(year: String): String =
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s"Copyright (C) $year Lightbend Inc. <https://www.lightbend.com>"
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val cStyleComment = HeaderCommentStyle.cStyleBlockComment.copy(commentCreator = new CommentCreator() {
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def updateLightbendHeader(header: String): String = header match {
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case CopyrightHeaderPattern(years, null, _) =>
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if (years != CurrentYear)
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CopyrightPattern.replaceFirstIn(header, headerFor(years + "-" + CurrentYear))
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else
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CopyrightPattern.replaceFirstIn(header, headerFor(years))
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case CopyrightHeaderPattern(years, endYears, _) =>
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CopyrightPattern.replaceFirstIn(header, headerFor(years.replace(endYears, "-" + CurrentYear)))
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case _ =>
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header
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}
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def parseStartAndEndYear(header: String): Option[(String, Option[String])] = header match {
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case CopyrightHeaderPattern(years, null, _) =>
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Some((years, None))
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case CopyrightHeaderPattern(years, endYears, _) =>
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Some((years, Some(endYears)))
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case _ =>
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None
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}
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override def apply(text: String, existingText: Option[String]): String = {
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val formatted = existingText match {
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case Some(existedText) =>
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parseStartAndEndYear(existedText) match {
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case Some((years, None)) =>
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if (years != CurrentYear) {
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val header = headerFor(years + "-" + CurrentYear)
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HeaderCommentStyle.cStyleBlockComment.commentCreator(header, existingText)
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} else {
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HeaderCommentStyle.cStyleBlockComment.commentCreator(headerFor(CurrentYear), existingText)
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}
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case Some((years, Some(endYears))) =>
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val header = headerFor(years.replace(endYears, "-" + CurrentYear))
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HeaderCommentStyle.cStyleBlockComment.commentCreator(header, existingText)
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case None =>
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existedText
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}
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case None =>
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HeaderCommentStyle.cStyleBlockComment.commentCreator(text, existingText)
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}
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formatted.trim
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}
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})
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}
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object CopyrightHeader extends CopyrightHeader
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object CopyrightHeaderInPr extends CopyrightHeader {
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override val additional =
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Def.settings(additionalTasks += headerCheck in Compile, additionalTasks += headerCheck in Test)
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}
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