Add file history page to the repository viewer.

src/main/scala/app/RepositoryViewerController.scala

@@ -116,12 +116,31 @@ class RepositoryViewerController extends ControllerBase {
     
     val (logs, hasNext) = JGitUtil.getCommitLog(Git.open(getRepositoryDir(owner, repository)), branchName, page, 30)
     
-    html.commits(branchName, JGitUtil.getRepositoryInfo(owner, repository, servletContext), 
+    html.commits(Nil, branchName, JGitUtil.getRepositoryInfo(owner, repository, servletContext), 
       logs.splitWith{ (commit1, commit2) =>
         view.helpers.date(commit1.time) == view.helpers.date(commit2.time)
       }, page, hasNext)
   }
   
+  /**
+   * Displays the commit list of the specified resource.
+   */
+  get("/:owner/:repository/commits/:branch/*"){
+    val owner      = params("owner")
+    val repository = params("repository")
+    val branchName = params("branch")
+    val path       = multiParams("splat").head //.replaceFirst("^tree/.+?/", "")
+    val page       = params.getOrElse("page", "1").toInt
+    
+    val (logs, hasNext) = JGitUtil.getCommitLog(Git.open(getRepositoryDir(owner, repository)), branchName, page, 30, path)
+    
+    html.commits(path.split("/").toList, branchName, JGitUtil.getRepositoryInfo(owner, repository, servletContext), 
+      logs.splitWith{ (commit1, commit2) =>
+        view.helpers.date(commit1.time) == view.helpers.date(commit2.time)
+      }, page, hasNext)
+  }
+  
+  
   /**
    * Displays the file content of the specified branch or commit.
    */
@@ -130,7 +149,7 @@ class RepositoryViewerController extends ControllerBase {
     val repository = params("repository")
     val id         = params("id") // branch name or commit id
     val raw        = params.get("raw").getOrElse("false").toBoolean
-    val path       = multiParams("splat").head.replaceFirst("^tree/.+?/", "")
+    val path       = multiParams("splat").head //.replaceFirst("^tree/.+?/", "")
     val repositoryInfo = JGitUtil.getRepositoryInfo(owner, repository, servletContext)
 
     val git = Git.open(getRepositoryDir(owner, repository))

src/main/scala/app/WikiController.scala

@@ -41,9 +41,7 @@ class WikiController extends ControllerBase {
     val git        = Git.open(WikiUtil.getWikiRepositoryDir(owner, repository))
     
     html.wikihistory(Some(page),
-      JGitUtil.getCommitLog(git, "master")._1.filter { commit =>
-        JGitUtil.getDiffs(git, commit.id).find(_.newPath == page + ".md").isDefined
-      },
+      JGitUtil.getCommitLog(git, "master", path = page + ".md")._1,
       JGitUtil.getRepositoryInfo(owner, repository, servletContext))
   }
   

src/main/scala/util/JGitUtil.scala

@@ -20,6 +20,7 @@ import org.eclipse.jgit.diff.DiffEntry.ChangeType
 import org.eclipse.jgit.lib.FileMode
 import org.eclipse.jgit.treewalk.filter.PathFilter
 import org.eclipse.jgit.treewalk.CanonicalTreeParser
+import org.eclipse.jgit.revwalk.filter.RevFilter
 
 /**
  * Provides complex JGit operations.
@@ -94,10 +95,11 @@ object JGitUtil {
    * @param git the Git object
    * @param revision the branch name or commit id
    * @param page the page number (1-)
-   * @param limit the number of commit info per page. 0 means unlimited.
+   * @param limit the number of commit info per page. 0 (default) means unlimited.
+   * @param path filters by this path. default is no filter.
    * @return a tuple of the commit list and whether has next
    */
-  def getCommitLog(git: Git, revision: String, page: Int = 1, limit: Int = 0): (List[CommitInfo], Boolean) = {
+  def getCommitLog(git: Git, revision: String, page: Int = 1, limit: Int = 0, path: String = ""): (List[CommitInfo], Boolean) = {
     val fixedPage = if(page <= 0) 1 else page
     
     @scala.annotation.tailrec
@@ -110,6 +112,14 @@ object JGitUtil {
     
     val revWalk = new RevWalk(git.getRepository)
     revWalk.markStart(revWalk.parseCommit(git.getRepository.resolve(revision)))
+    if(path.nonEmpty){
+      revWalk.setRevFilter(new RevFilter(){
+        def include(walk: RevWalk, commit: RevCommit): Boolean = {
+          getDiffs(git, commit.getName).find(_.newPath == path).nonEmpty
+        }
+        override def clone(): RevFilter = this
+      })
+    }
     
     val commits = getCommitLog(revWalk.iterator, 0, Nil)
     revWalk.release

src/main/twirl/blob.scala.html

@@ -25,7 +25,7 @@
         </div>
         <div class="btn-group pull-right">
           <a class="btn btn-mini" href="?raw=true">Raw</a>
-          <a class="btn btn-mini">History</a>
+          <a class="btn btn-mini" href="@path/@repository.owner/@repository.name/commits/@branch/@pathList.mkString("/")">History</a>
         </div>  
       </th>
     </tr>

src/main/twirl/commits.scala.html

@@ -1,11 +1,24 @@
-@(branch: String, repository: app.RepositoryInfo, commits: Seq[Seq[app.CommitInfo]], page: Int, hasNext: Boolean)(implicit context: app.Context)
+@(pathList: List[String], branch: String, repository: app.RepositoryInfo, commits: Seq[Seq[app.CommitInfo]], page: Int, hasNext: Boolean)(implicit context: app.Context)
 @import context._
 @import view.helpers
 @main(repository.owner+"/"+repository.name) {
   @header("code", repository)
-  @navtab(branch, repository, "commits")
+  @navtab(branch, repository, if(pathList.isEmpty) "commits" else "files")
   <div class="head">
-    <a href="@path/@repository.owner/@repository.name/tree/@branch">@repository.name</a> / Commit History
+    @if(pathList.isEmpty){
+      <a href="@path/@repository.owner/@repository.name/tree/@branch">@repository.name</a> / Commit History
+    }
+    @if(pathList.nonEmpty){
+      <span class="description">History for</span>
+      <a href="@path/@repository.owner/@repository.name/tree/@branch">@repository.name</a> /
+      @pathList.zipWithIndex.map { case (section, i) =>
+        @if(i == pathList.length - 1){
+          @section
+        } else {
+          <a href="@path/@repository.owner/@repository.name/tree/@branch/@pathList.take(i + 1).mkString("/")">@section</a> /
+        }
+      }
+    }
   </div>
       
   @commits.map { date =>