Support view individual commit for wiki pages (go-gitea#11415)

Currently you can see a list of commit history for wiki pages but aren't able to view the commit diff itself. This adds the feature to view an individual commit to a wiki repo.

Closes go-gitea#8999

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

routers/repo/commit.go

@@ -212,8 +212,25 @@ func Diff(ctx *context.Context) {
 	userName := ctx.Repo.Owner.Name
 	repoName := ctx.Repo.Repository.Name
 	commitID := ctx.Params(":sha")
+	var (
+		gitRepo  *git.Repository
+		err      error
+		repoPath string
+	)
+
+	if ctx.Data["PageIsWiki"] != nil {
+		gitRepo, err = git.OpenRepository(ctx.Repo.Repository.WikiPath())
+		if err != nil {
+			ctx.ServerError("Repo.GitRepo.GetCommit", err)
+			return
+		}
+		repoPath = ctx.Repo.Repository.WikiPath()
+	} else {
+		gitRepo = ctx.Repo.GitRepo
+		repoPath = models.RepoPath(userName, repoName)
+	}
 
-	commit, err := ctx.Repo.GitRepo.GetCommit(commitID)
+	commit, err := gitRepo.GetCommit(commitID)
 	if err != nil {
 		if git.IsErrNotExist(err) {
 			ctx.NotFound("Repo.GitRepo.GetCommit", err)
@@ -233,7 +250,7 @@ func Diff(ctx *context.Context) {
 
 	ctx.Data["CommitStatus"] = models.CalcCommitStatus(statuses)
 
-	diff, err := gitdiff.GetDiffCommit(models.RepoPath(userName, repoName),
+	diff, err := gitdiff.GetDiffCommit(repoPath,
 		commitID, setting.Git.MaxGitDiffLines,
 		setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles)
 	if err != nil {
@@ -258,7 +275,7 @@ func Diff(ctx *context.Context) {
 
 	var parentCommit *git.Commit
 	if commit.ParentCount() > 0 {
-		parentCommit, err = ctx.Repo.GitRepo.GetCommit(parents[0])
+		parentCommit, err = gitRepo.GetCommit(parents[0])
 		if err != nil {
 			ctx.NotFound("GetParentCommit", err)
 			return
@@ -298,8 +315,14 @@ func Diff(ctx *context.Context) {
 
 // RawDiff dumps diff results of repository in given commit ID to io.Writer
 func RawDiff(ctx *context.Context) {
+	var repoPath string
+	if ctx.Data["PageIsWiki"] != nil {
+		repoPath = ctx.Repo.Repository.WikiPath()
+	} else {
+		repoPath = models.RepoPath(ctx.Repo.Owner.Name, ctx.Repo.Repository.Name)
+	}
 	if err := git.GetRawDiff(
-		models.RepoPath(ctx.Repo.Owner.Name, ctx.Repo.Repository.Name),
+		repoPath,
 		ctx.Params(":sha"),
 		git.RawDiffType(ctx.Params(":ext")),
 		ctx.Resp,

routers/repo/wiki.go

@@ -245,6 +245,8 @@ func renderRevisionPage(ctx *context.Context) (*git.Repository, *git.TreeEntry)
 	ctx.Data["Title"] = pageName
 	ctx.Data["title"] = pageName
 	ctx.Data["RequireHighlightJS"] = true
+	ctx.Data["Username"] = ctx.Repo.Owner.Name
+	ctx.Data["Reponame"] = ctx.Repo.Repository.Name
 
 	//lookup filename in wiki - get filecontent, gitTree entry , real filename
 	data, entry, pageFilename, noEntry := wikiContentsByName(ctx, commit, pageName)

routers/routes/routes.go

@@ -857,6 +857,8 @@ func RegisterRoutes(m *macaron.Macaron) {
 			m.Get("/?:page", repo.Wiki)
 			m.Get("/_pages", repo.WikiPages)
 			m.Get("/:page/_revision", repo.WikiRevision)
+			m.Get("/commit/:sha([a-f0-9]{7,40})$", repo.SetEditorconfigIfExists, repo.SetDiffViewStyle, repo.Diff)
+			m.Get("/commit/:sha([a-f0-9]{7,40})\\.:ext(patch|diff)", repo.RawDiff)
 
 			m.Group("", func() {
 				m.Combo("/_new").Get(repo.NewWiki).
@@ -865,7 +867,9 @@ func RegisterRoutes(m *macaron.Macaron) {
 					Post(bindIgnErr(auth.NewWikiForm{}), repo.EditWikiPost)
 				m.Post("/:page/delete", repo.DeleteWikiPagePost)
 			}, context.RepoMustNotBeArchived(), reqSignIn, reqRepoWikiWriter)
-		}, repo.MustEnableWiki, context.RepoRef())
+		}, repo.MustEnableWiki, context.RepoRef(), func(ctx *context.Context) {
+			ctx.Data["PageIsWiki"] = true
+		})
 
 		m.Group("/wiki", func() {
 			m.Get("/raw/*", repo.WikiRaw)

templates/repo/commit_page.tmpl

@@ -18,9 +18,11 @@
 			{{end}}
 		{{end}}
 		<div class="ui top attached info clearing segment {{$class}}">
+			{{if not $.PageIsWiki}}
 			<a class="ui floated right blue tiny button" href="{{EscapePound .SourcePath}}">
 				{{.i18n.Tr "repo.diff.browse_source"}}
 			</a>
+			{{end}}
 			<h3><span class="message-wrapper"><span class="commit-summary" title="{{.Commit.Summary}}">{{RenderCommitMessage .Commit.Message $.RepoLink $.Repository.ComposeMetas}}</span></span>{{template "repo/commit_status" .CommitStatus}}</h3>
 			{{if IsMultilineCommitMessage .Commit.Message}}
 				<pre class="commit-body">{{RenderCommitBody .Commit.Message $.RepoLink $.Repository.ComposeMetas}}</pre>
@@ -61,7 +63,11 @@
 							</div>
 							<div class="item">
 								{{range .Parents}}
-									<a class="ui blue sha label" href="{{$.RepoLink}}/commit/{{.}}">{{ShortSha .}}</a>
+									{{if $.PageIsWiki}}
+										<a class="ui blue sha label" href="{{$.RepoLink}}/wiki/commit/{{.}}">{{ShortSha .}}</a>
+									{{else}}
+										<a class="ui blue sha label" href="{{$.RepoLink}}/commit/{{.}}">{{ShortSha .}}</a>
+									{{end}}
 								{{end}}
 							</div>
 						{{end}}

templates/repo/commits_list.tmpl

@@ -39,7 +39,9 @@
 									{{$class = (printf "%s%s" $class " isWarning")}}
 								{{end}}
 							{{end}}
-							{{if $.Reponame}}
+							{{if $.PageIsWiki}}
+								<a href="{{AppSubUrl}}/{{$.Username}}/{{$.Reponame}}/wiki/commit/{{.ID}}" rel="nofollow" class="{{$class}}">
+							{{else if $.Reponame}}
 								<a href="{{AppSubUrl}}/{{$.Username}}/{{$.Reponame}}/commit/{{.ID}}" rel="nofollow" class="{{$class}}">
 							{{else}}
 								<span class="{{$class}}">

templates/repo/diff/box.tmpl

@@ -69,7 +69,7 @@
 						</div>
 						<span class="file">{{$file.Name}}</span>
 						<div>{{$.i18n.Tr "repo.diff.file_suppressed"}}</div>
-						{{if not $file.IsSubmodule}}
+						{{if and (not $file.IsSubmodule) (not $.PageIsWiki)}}
 							{{if $file.IsDeleted}}
 								<a class="ui basic grey tiny button" rel="nofollow" href="{{EscapePound $.BeforeSourcePath}}/{{EscapePound .Name}}">{{$.i18n.Tr "repo.diff.view_file"}}</a>
 							{{else}}
@@ -103,7 +103,7 @@
 							{{end}}
 						</div>
 						<span class="file">{{if $file.IsRenamed}}{{$file.OldName}} &rarr; {{end}}{{$file.Name}}{{if .IsLFSFile}} ({{$.i18n.Tr "repo.stored_lfs"}}){{end}}</span>
-						{{if not $file.IsSubmodule}}
+						{{if and (not $file.IsSubmodule) (not $.PageIsWiki)}}
 							{{if $file.IsDeleted}}
 								<a class="ui basic grey tiny button" rel="nofollow" href="{{EscapePound $.BeforeSourcePath}}/{{EscapePound .Name}}">{{$.i18n.Tr "repo.diff.view_file"}}</a>
 							{{else}}

templates/repo/diff/options_dropdown.tmpl

@@ -6,6 +6,9 @@
 		{{if .Issue.Index}}
 			<a class="item" href="{{$.RepoLink}}/pulls/{{.Issue.Index}}.patch" download="{{.Issue.Index}}.patch">{{.i18n.Tr "repo.diff.download_patch"}}</a>
 			<a class="item" href="{{$.RepoLink}}/pulls/{{.Issue.Index}}.diff" download="{{.Issue.Index}}.diff">{{.i18n.Tr "repo.diff.download_diff"}}</a>
+		{{else if $.PageIsWiki}}
+			<a class="item" href="{{$.RepoLink}}/wiki/commit/{{.Commit.ID.String}}.patch" download="{{ShortSha .Commit.ID.String}}.patch">{{.i18n.Tr "repo.diff.download_patch"}}</a>
+			<a class="item" href="{{$.RepoLink}}/wiki/commit/{{.Commit.ID.String}}.diff" download="{{ShortSha .Commit.ID.String}}.diff">{{.i18n.Tr "repo.diff.download_diff"}}</a>
 		{{else if .Commit.ID.String}}
 			<a class="item" href="{{$.RepoLink}}/commit/{{.Commit.ID.String}}.patch" download="{{ShortSha .Commit.ID.String}}.patch">{{.i18n.Tr "repo.diff.download_patch"}}</a>
 			<a class="item" href="{{$.RepoLink}}/commit/{{.Commit.ID.String}}.diff" download="{{ShortSha .Commit.ID.String}}.diff">{{.i18n.Tr "repo.diff.download_diff"}}</a>