Add sbt header plugin

build.sbt

@@ -2,6 +2,7 @@ import com.github.eikek.sbt.openapi._
 import scala.sys.process._
 import com.typesafe.sbt.SbtGit.GitKeys._
 import docspell.build._
+import de.heikoseeberger.sbtheader.CommentBlockCreator
 
 val toolsPackage   = taskKey[Seq[File]]("Package the scripts/extension tools")
 val elmCompileMode = settingKey[ElmCompileMode]("How to compile elm sources")
@@ -20,6 +21,13 @@ val scalafixSettings = Seq(
 val sharedSettings = Seq(
   organization := "com.github.eikek",
   scalaVersion := "2.13.6",
+  organizationName := "Docspell Contributors",
+  licenses += ("GPL-3.0-or-later", url(
+    "https://spdx.org/licenses/GPL-3.0-or-later.html"
+  )),
+  startYear := Some(2020),
+  headerLicenseStyle := HeaderLicenseStyle.SpdxSyntax,
+  headerSources / excludeFilter := HiddenFileFilter || "*.java" || "StringUtil.scala",
   scalacOptions ++= Seq(
     "-deprecation",
     "-encoding",
@@ -75,7 +83,13 @@ val elmSettings = Seq(
     (Compile / sourceDirectory).value / "elm",
     FileFilter.globFilter("*.elm"),
     HiddenFileFilter
-  )
+  ),
+  Compile / unmanagedSourceDirectories += (Compile / sourceDirectory).value / "elm",
+  headerSources / includeFilter := "*.elm",
+  headerMappings := headerMappings.value + (HeaderFileType("elm") -> HeaderCommentStyle(
+    new CommentBlockCreator("{-", " ", "-}"),
+    HeaderPattern.commentBetween("\\{\\-", " ", "\\-\\}")
+  ))
 )
 val stylesSettings = Seq(
   stylesMode := StylesMode.Dev,
@@ -113,7 +127,7 @@ def webjarSettings(queryJS: Project) = Seq(
 
 def debianSettings(cfgFile: String) =
   Seq(
-    maintainer := "Eike Kettner <eike.kettner@posteo.de>",
+    maintainer := "Eike Kettner <eikek@posteo.de>",
     Universal / mappings += {
       val conf = (Compile / resourceDirectory).value / "reference.conf"
       if (!conf.exists)
@@ -788,8 +802,11 @@ addCommandAlias("make-pkg", ";clean ;make ;make-zip ;make-deb ;make-tools")
 addCommandAlias("ci", "make; lint; test")
 addCommandAlias(
   "lint",
-  "restapi/openapiLint; joexapi/openapiLint; scalafmtSbtCheck; scalafmtCheckAll; Compile/scalafix --check; Test/scalafix --check"
+  "restapi/openapiLint; joexapi/openapiLint; headerCheck; scalafmtSbtCheck; scalafmtCheckAll; Compile/scalafix --check; Test/scalafix --check"
+)
+addCommandAlias(
+  "fix",
+  "headerCreateAll; Compile/scalafix; Test/scalafix; scalafmtSbt; scalafmtAll"
 )
-addCommandAlias("fix", "Compile/scalafix; Test/scalafix; scalafmtSbt; scalafmtAll")
 addCommandAlias("make-website", ";website/clean ;website/zolaBuild ;website/zolaCheck")
 addCommandAlias("publish-website", "website/publishToGitHubPages")

project/plugins.sbt

@@ -1,11 +1,12 @@
 addSbtPlugin("ch.epfl.scala"      % "sbt-scalafix"             % "0.9.29")
 addSbtPlugin("com.eed3si9n"       % "sbt-buildinfo"            % "0.10.0")
 addSbtPlugin("com.github.eikek"   % "sbt-openapi-schema"       % "0.8.1")
-addSbtPlugin("com.github.sbt"     % "sbt-release"              % "1.1.0")
 addSbtPlugin("com.github.sbt"     % "sbt-pgp"                  % "2.1.2")
-addSbtPlugin("io.kevinlee"        % "sbt-github-pages"         % "0.5.0")
+addSbtPlugin("com.github.sbt"     % "sbt-release"              % "1.1.0")
 addSbtPlugin("com.typesafe.sbt"   % "sbt-git"                  % "1.0.1")
 addSbtPlugin("com.typesafe.sbt"   % "sbt-native-packager"      % "1.8.1")
+addSbtPlugin("de.heikoseeberger"  % "sbt-header"               % "5.6.0")
+addSbtPlugin("io.kevinlee"        % "sbt-github-pages"         % "0.5.0")
 addSbtPlugin("io.spray"           % "sbt-revolver"             % "0.9.1")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.1.0")
 addSbtPlugin("org.scala-js"       % "sbt-scalajs"              % "1.6.0")