From c117f9e73f148468c624f31be237af7a691533a0 Mon Sep 17 00:00:00 2001
From: Unknown <joe2010xtmf@163.com>
Date: Mon, 12 May 2014 20:22:35 -0400
Subject: [PATCH] Fix #166

---
 cmd/web.go                      |  1 +
 routers/repo/commit.go          | 66 ++++++++++++++++++++++++++++++++-
 routers/repo/repo.go            |  1 +
 templates/repo/commits.tmpl     |  4 +-
 templates/repo/single_file.tmpl |  2 +-
 5 files changed, 69 insertions(+), 5 deletions(-)

diff --git a/cmd/web.go b/cmd/web.go
index b8cfc5a4f5e..c343566d70b 100644
--- a/cmd/web.go
+++ b/cmd/web.go
@@ -210,6 +210,7 @@ func runWeb(*cli.Context) {
 		r.Get("/raw/:branchname/**", repo.SingleDownload)
 		r.Get("/commits/:branchname", repo.Commits)
 		r.Get("/commits/:branchname/search", repo.SearchCommits)
+		r.Get("/commits/:branchname/**", repo.FileHistory)
 		r.Get("/commit/:branchname", repo.Diff)
 		r.Get("/commit/:branchname/**", repo.Diff)
 		r.Get("/releases", repo.Releases)
diff --git a/routers/repo/commit.go b/routers/repo/commit.go
index bc33fe44739..88b6593e76f 100644
--- a/routers/repo/commit.go
+++ b/routers/repo/commit.go
@@ -47,10 +47,10 @@ func Commits(ctx *middleware.Context, params martini.Params) {
 		nextPage = 0
 	}
 
-	//both `git log branchName` and `git log  commitId` work
+	//both `git log branchName` and `git log commitId` work
 	commits, err := ctx.Repo.Commit.CommitsByRange(page)
 	if err != nil {
-		ctx.Handle(500, "repo.Commits(get commits)", err)
+		ctx.Handle(500, "repo.Commits(CommitsByRange)", err)
 		return
 	}
 
@@ -149,3 +149,65 @@ func SearchCommits(ctx *middleware.Context, params martini.Params) {
 	ctx.Data["IsRepoToolbarCommits"] = true
 	ctx.HTML(200, "repo/commits")
 }
+
+func FileHistory(ctx *middleware.Context, params martini.Params) {
+	fileName := params["_1"]
+	if len(fileName) == 0 {
+		Commits(ctx, params)
+		return
+	}
+
+	userName := ctx.Repo.Owner.Name
+	repoName := ctx.Repo.Repository.Name
+	branchName := params["branchname"]
+
+	brs, err := ctx.Repo.GitRepo.GetBranches()
+	if err != nil {
+		ctx.Handle(500, "repo.FileHistory", err)
+		return
+	} else if len(brs) == 0 {
+		ctx.Handle(404, "repo.FileHistory", nil)
+		return
+	}
+
+	commitsCount, err := ctx.Repo.GitRepo.FileCommitsCount(branchName, fileName)
+	if err != nil {
+		ctx.Handle(500, "repo.FileHistory(GetCommitsCount)", err)
+		return
+	}
+	if commitsCount == 0 {
+		ctx.Handle(404, "repo.FileHistory", nil)
+		return
+	}
+
+	// Calculate and validate page number.
+	page, _ := base.StrTo(ctx.Query("p")).Int()
+	if page < 1 {
+		page = 1
+	}
+	lastPage := page - 1
+	if lastPage < 0 {
+		lastPage = 0
+	}
+	nextPage := page + 1
+	if nextPage*50 > commitsCount {
+		nextPage = 0
+	}
+
+	//both `git log branchName` and `git log commitId` work
+	commits, err := ctx.Repo.GitRepo.CommitsByFileAndRange(branchName, fileName, page)
+	if err != nil {
+		ctx.Handle(500, "repo.FileHistory(CommitsByRange)", err)
+		return
+	}
+
+	ctx.Data["Username"] = userName
+	ctx.Data["Reponame"] = repoName
+	ctx.Data["FileName"] = fileName
+	ctx.Data["CommitCount"] = commitsCount
+	ctx.Data["Commits"] = commits
+	ctx.Data["LastPageNum"] = lastPage
+	ctx.Data["NextPageNum"] = nextPage
+	ctx.Data["IsRepoToolbarCommits"] = true
+	ctx.HTML(200, "repo/commits")
+}
diff --git a/routers/repo/repo.go b/routers/repo/repo.go
index 19c9dddc6ee..7769d22774e 100644
--- a/routers/repo/repo.go
+++ b/routers/repo/repo.go
@@ -254,6 +254,7 @@ func Single(ctx *middleware.Context, params martini.Params) {
 
 	ctx.Data["LastCommit"] = ctx.Repo.Commit
 	ctx.Data["Paths"] = Paths
+	ctx.Data["TreeName"] = treename
 	ctx.Data["Treenames"] = treenames
 	ctx.Data["TreePath"] = treePath
 	ctx.Data["BranchLink"] = branchLink
diff --git a/templates/repo/commits.tmpl b/templates/repo/commits.tmpl
index 74b03074bc8..385f9d5bae9 100644
--- a/templates/repo/commits.tmpl
+++ b/templates/repo/commits.tmpl
@@ -41,8 +41,8 @@
             </table>
         </div>
         {{if not .IsSearchPage}}<ul class="pagination" id="commits-pager">
-            {{if .LastPageNum}}<li><a href="{{.RepoLink}}/commits/{{.BranchName}}?p={{.LastPageNum}}" rel="nofollow">&laquo; Newer</a></li>{{end}}
-            {{if .NextPageNum}}<li><a href="{{.RepoLink}}/commits/{{.BranchName}}?p={{.NextPageNum}}" rel="nofollow">&raquo; Older</a></li>{{end}}
+            {{if .LastPageNum}}<li><a href="{{.RepoLink}}/commits/{{.BranchName}}{{if .FileName}}/{{.FileName}}{{end}}?p={{.LastPageNum}}" rel="nofollow">&laquo; Newer</a></li>{{end}}
+            {{if .NextPageNum}}<li><a href="{{.RepoLink}}/commits/{{.BranchName}}{{if .FileName}}/{{.FileName}}{{end}}?p={{.NextPageNum}}" rel="nofollow">&raquo; Older</a></li>{{end}}
         </ul>{{end}}
     </div>
 </div>
diff --git a/templates/repo/single_file.tmpl b/templates/repo/single_file.tmpl
index 95c41b70179..8c09f3ec1c6 100644
--- a/templates/repo/single_file.tmpl
+++ b/templates/repo/single_file.tmpl
@@ -16,7 +16,7 @@
             <a class="btn btn-default hidden" href="#">Edit</a>
             <a class="btn btn-default" href="{{.FileLink}}" rel="nofollow">Raw</a>
             <a class="btn btn-default hidden" href="#">Blame</a>
-            <a class="btn btn-default hidden" href="#">History</a>
+            <a class="btn btn-default" href="{{.RepoLink}}/commits/{{.BranchName}}/{{.TreeName}}">History</a>
             <a class="btn btn-danger hidden" href="#">Delete</a>
         </div>
         {{end}}