Fix header link (for GitBucket 3.1.1)

Author: takezoe

project/build.scala

@@ -7,7 +7,7 @@ object MyBuild extends Build {
 
   val Organization = "jp.sf.amateras"
   val Name = "gitbucket-gist-plugin"
-  val Version = "1.0"
+  val Version = "1.1"
   val ScalaVersion = "2.11.2"
 
   lazy val project = Project (
@@ -25,7 +25,7 @@ object MyBuild extends Build {
       "amateras-repo" at "http://amateras.sourceforge.jp/mvn/"
     ),
     libraryDependencies ++= Seq(
-      "gitbucket"          % "gitbucket-assembly" % "3.1.0",
+      "gitbucket"          % "gitbucket-assembly" % "3.1.1",
       "com.typesafe.play" %% "twirl-compiler"     % "1.0.2",
       "javax.servlet"      % "javax.servlet-api"  % "3.1.0" % "provided"
     ),

src/main/scala/Plugin.scala

@@ -2,6 +2,7 @@ import gitbucket.gist.controller.GistController
 import gitbucket.core.plugin.PluginRegistry
 import gitbucket.core.util.Version
 import java.io.File
+import javax.servlet.ServletContext
 import gitbucket.gist.util.Configurations._
 
 class Plugin extends gitbucket.core.plugin.Plugin {
@@ -10,11 +11,13 @@ class Plugin extends gitbucket.core.plugin.Plugin {
   override val description: String = "Provides Gist feature on GitBucket."
   override val versions: List[Version] = List(Version(1, 0))
 
-  override def initialize(registry: PluginRegistry): Unit = {
+  override def initialize(registry: PluginRegistry, context: ServletContext): Unit = {
     // Add Snippet link to the header
     registry.addJavaScript(".*",
-      """
-        |$('a.brand').after($('<span style="float: left; margin-top: 10px;">|&nbsp;&nbsp;&nbsp;&nbsp;<a href="/gist" style="color: black;">Snippet</a></span>'));
+      s"""
+        |$$('a.brand').after(
+        |  $$('<span style="float: left; margin-top: 10px;">|&nbsp;&nbsp;&nbsp;&nbsp;<a href="${context.getContextPath}/gist" style="color: black;">Snippet</a></span>')
+        |);
       """.stripMargin)
 
     val rootdir = new File(GistRepoDir)
@@ -37,6 +40,6 @@ class Plugin extends gitbucket.core.plugin.Plugin {
     println("-- Gist plug-in initialized --")
   }
 
-  override def shutdown(registry: PluginRegistry): Unit = {
+  override def shutdown(registry: PluginRegistry, context: ServletContext): Unit = {
   }
 }