make template simpler

Author: lunny

templates/repo/home.tmpl

@@ -1,13 +1,8 @@
 {{template "base/head" .}}
-{{$treeNamesLen := len .TreeNames}}
-{{$isTreePathRoot := eq $treeNamesLen 0}}
-{{$showSidebar := and $isTreePathRoot (not .HideRepoInfo) (not .IsBlame)}}
-{{$hasTreeSidebar := not $isTreePathRoot}}
-{{$showTreeSidebar := .RepoPreferences.ShowFileViewTreeSidebar}}
-{{$hideTreeSidebar := not $showTreeSidebar}}
+{{$showSidebar := and (not .TreeNames) (not .HideRepoInfo) (not .IsBlame)}}
 <div role="main" aria-label="{{.Title}}" class="page-content repository file list {{if .IsBlame}}blame{{end}}">
 	{{template "repo/header" .}}
-	<div class="ui container {{if or $hasTreeSidebar .IsBlame}}fluid padded{{end}}">
+	<div class="ui container {{if or .TreeNames .IsBlame}}fluid padded{{end}}">
 		{{template "base/alert" .}}
 
 		{{if .Repository.IsArchived}}
@@ -22,9 +17,9 @@
 
 		{{template "repo/code/recently_pushed_new_branches" .}}
 
-		<div class="{{Iif $showSidebar "repo-grid-filelist-sidebar" (Iif $showTreeSidebar "repo-grid-tree-sidebar" "repo-grid-filelist-only")}}">
-			{{if $hasTreeSidebar}}
-				<div class="repo-view-file-tree-sidebar not-mobile {{if $hideTreeSidebar}}tw-hidden{{end}}" {{if .IsSigned}} data-is-signed {{end}}>{{template "repo/view_file_tree_sidebar" .}}</div>
+		<div class="{{Iif $showSidebar "repo-grid-filelist-sidebar" (Iif .RepoPreferences.ShowFileViewTreeSidebar "repo-grid-tree-sidebar" "repo-grid-filelist-only")}}">
+			{{if .TreeNames}}
+				<div class="repo-view-file-tree-sidebar not-mobile {{if not .RepoPreferences.ShowFileViewTreeSidebar}}tw-hidden{{end}}" {{if .IsSigned}} data-is-signed {{end}}>{{template "repo/view_file_tree_sidebar" .}}</div>
 			{{end}}
 
 			<div class="repo-home-filelist">

templates/repo/home_content.tmpl

@@ -1,14 +1,11 @@
-{{$treeNamesLen := len .TreeNames}}
-{{$isTreePathRoot := eq $treeNamesLen 0}}
+{{$isTreePathRoot := not .TreeNames}}
 {{$showSidebar := and $isTreePathRoot (not .HideRepoInfo) (not .IsBlame)}}
-{{$hasTreeSidebar := not $isTreePathRoot}}
-{{$showTreeSidebar := .RepoPreferences.ShowFileViewTreeSidebar}}
 
 {{template "repo/sub_menu" .}}
 <div class="repo-button-row">
 	<div class="repo-button-row-left">
-		{{if $hasTreeSidebar}}
-			<button class="show-tree-sidebar-button ui compact basic button icon not-mobile {{if $showTreeSidebar}}tw-hidden{{end}}" title="{{ctx.Locale.Tr "repo.diff.show_file_tree"}}">
+		{{if not $isTreePathRoot}}
+			<button class="show-tree-sidebar-button ui compact basic button icon not-mobile {{if .RepoPreferences.ShowFileViewTreeSidebar}}tw-hidden{{end}}" title="{{ctx.Locale.Tr "repo.diff.show_file_tree"}}">
 				{{svg "octicon-sidebar-collapse" 20 "icon"}}
 			</button>
 		{{end}}
@@ -58,7 +55,7 @@
 	{{end}}
 
 	{{if not $isTreePathRoot}}
-		{{$treeNameIdxLast := Eval $treeNamesLen "-" 1}}
+		{{$treeNameIdxLast := Eval (len .TreeNames) "-" 1}}
 		<span class="breadcrumb repo-path tw-ml-1">
 			<a class="section" href="{{.RepoLink}}/src/{{.RefTypeNameSubURL}}" title="{{.Repository.Name}}">{{StringUtils.EllipsisString .Repository.Name 30}}</a>
 			{{- range $i, $v := .TreeNames -}}