Provide option to unlink a fork (#11858)

* Provide option to unlink a fork

Fix #4566

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Apply suggestions from code review

Co-authored-by: techknowlogick <matti@mdranta.net>

* Add check that user can create repo

Signed-off-by: Andrew Thornton <art27@cantab.net>

* as per @cirnoT

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: techknowlogick <matti@mdranta.net>

5 files changed, 124 insertions, 48 deletions

diff --git a/models/repo.go b/models/repo.go
index 3b874f3359..c7d2ef467c 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -209,19 +209,9 @@ func (repo *Repository) SanitizedOriginalURL() string {
 
 // ColorFormat returns a colored string to represent this repo
 func (repo *Repository) ColorFormat(s fmt.State) {
-	var ownerName interface{}
-
-	if repo.OwnerName != "" {
-		ownerName = repo.OwnerName
-	} else if repo.Owner != nil {
-		ownerName = repo.Owner.Name
-	} else {
-		ownerName = log.NewColoredIDValue(strconv.FormatInt(repo.OwnerID, 10))
-	}
-
 	log.ColorFprintf(s, "%d:%s/%s",
 		log.NewColoredIDValue(repo.ID),
-		ownerName,
+		repo.OwnerName,
 		repo.Name)
 }
 
diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 7bde0d2af3..036665256d 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -1382,6 +1382,11 @@ settings.convert_desc = You can convert this mirror into a regular repository. T
 settings.convert_notices_1 = This operation will convert the mirror into a regular repository and cannot be undone.
 settings.convert_confirm = Convert Repository
 settings.convert_succeed = The mirror has been converted into a regular repository.
+settings.convert_fork = Convert to Regular Repository
+settings.convert_fork_desc = You can convert this fork into a regular repository. This cannot be undone.
+settings.convert_fork_notices_1 = This operation will convert the fork into a regular repository and cannot be undone.
+settings.convert_fork_confirm = Convert Repository
+settings.convert_fork_succeed = The fork has been converted into a regular repository.
 settings.transfer = Transfer Ownership
 settings.transfer_desc = Transfer this repository to a user or to an organization for which you have administrator rights.
 settings.transfer_notices_1 = - You will lose access to the repository if you transfer it to an individual user.
diff --git a/routers/repo/setting.go b/routers/repo/setting.go
index 635ec41334..02331c232b 100644
--- a/routers/repo/setting.go
+++ b/routers/repo/setting.go
@@ -356,9 +356,46 @@ func SettingsPost(ctx *context.Context, form auth.RepoSettingForm) {
 			ctx.ServerError("DeleteMirrorByRepoID", err)
 			return
 		}
-		log.Trace("Repository converted from mirror to regular: %s/%s", ctx.Repo.Owner.Name, repo.Name)
+		log.Trace("Repository converted from mirror to regular: %s", repo.FullName())
 		ctx.Flash.Success(ctx.Tr("repo.settings.convert_succeed"))
-		ctx.Redirect(setting.AppSubURL + "/" + ctx.Repo.Owner.Name + "/" + repo.Name)
+		ctx.Redirect(repo.Link())
+
+	case "convert_fork":
+		if !ctx.Repo.IsOwner() {
+			ctx.Error(404)
+			return
+		}
+		if err := repo.GetOwner(); err != nil {
+			ctx.ServerError("Convert Fork", err)
+			return
+		}
+		if repo.Name != form.RepoName {
+			ctx.RenderWithErr(ctx.Tr("form.enterred_invalid_repo_name"), tplSettingsOptions, nil)
+			return
+		}
+
+		if !repo.IsFork {
+			ctx.Error(404)
+			return
+		}
+
+		if !ctx.Repo.Owner.CanCreateRepo() {
+			ctx.Flash.Error(ctx.Tr("repo.form.reach_limit_of_creation", ctx.User.MaxCreationLimit()))
+			ctx.Redirect(repo.Link() + "/settings")
+			return
+		}
+
+		repo.IsFork = false
+		repo.ForkID = 0
+		if err := models.UpdateRepository(repo, false); err != nil {
+			log.Error("Unable to update repository %-v whilst converting from fork", repo)
+			ctx.ServerError("Convert Fork", err)
+			return
+		}
+
+		log.Trace("Repository converted from fork to regular: %s", repo.FullName())
+		ctx.Flash.Success(ctx.Tr("repo.settings.convert_fork_succeed"))
+		ctx.Redirect(repo.Link())
 
 	case "transfer":
 		if !ctx.Repo.IsOwner() {
diff --git a/templates/repo/settings/options.tmpl b/templates/repo/settings/options.tmpl
index c674fcf7f9..5666b8f956 100644
--- a/templates/repo/settings/options.tmpl
+++ b/templates/repo/settings/options.tmpl
@@ -358,17 +358,28 @@
 		</h4>
 		<div class="ui attached warning table danger segment">
 			{{if .Repository.IsMirror}}
-			<div class="item">
-				<div class="ui right">
-					<button class="ui basic red show-modal button" data-modal="#convert-repo-modal">{{.i18n.Tr "repo.settings.convert"}}</button>
+				<div class="item">
+					<div class="ui right">
+						<button class="ui basic red show-modal button" data-modal="#convert-mirror-repo-modal">{{.i18n.Tr "repo.settings.convert"}}</button>
+					</div>
+					<div>
+						<h5>{{.i18n.Tr "repo.settings.convert"}}</h5>
+						<p>{{.i18n.Tr "repo.settings.convert_desc"}}</p>
+					</div>
 				</div>
-				<div>
-					<h5>{{.i18n.Tr "repo.settings.convert"}}</h5>
-					<p>{{.i18n.Tr "repo.settings.convert_desc"}}</p>
+				<div class="ui divider"></div>
+			{{end}}
+			{{if and .Repository.IsFork .Repository.Owner.CanCreateRepo}}
+				<div class="item">
+					<div class="ui right">
+						<button class="ui basic red show-modal button" data-modal="#convert-fork-repo-modal">{{.i18n.Tr "repo.settings.convert_fork"}}</button>
+					</div>
+					<div>
+						<h5>{{.i18n.Tr "repo.settings.convert_fork"}}</h5>
+						<p>{{.i18n.Tr "repo.settings.convert_fork_desc"}}</p>
+					</div>
 				</div>
-			</div>
-
-			<div class="ui divider"></div>
+				<div class="ui divider"></div>
 			{{end}}
 			<div class="item">
 				<div class="ui right">
@@ -437,37 +448,67 @@
 
 {{if .Permission.IsOwner}}
 	{{if .Repository.IsMirror}}
-	<div class="ui small modal" id="convert-repo-modal">
-		<div class="header">
-			{{.i18n.Tr "repo.settings.convert"}}
-		</div>
-		<div class="content">
-			<div class="ui warning message text left">
-				{{.i18n.Tr "repo.settings.convert_notices_1"}}
+		<div class="ui small modal" id="convert-mirror-repo-modal">
+			<div class="header">
+				{{.i18n.Tr "repo.settings.convert"}}
 			</div>
-			<form class="ui form" action="{{.Link}}" method="post">
-				{{.CsrfTokenHtml}}
-				<input type="hidden" name="action" value="convert">
-				<div class="field">
-					<label>
-						{{.i18n.Tr "repo.settings.transfer_form_title"}}
-						<span class="text red">{{.Repository.Name}}</span>
-					</label>
-				</div>
-				<div class="required field">
-					<label for="repo_name">{{.i18n.Tr "repo.repo_name"}}</label>
-					<input id="repo_name" name="repo_name" required>
+			<div class="content">
+				<div class="ui warning message text left">
+					{{.i18n.Tr "repo.settings.convert_notices_1"}}
 				</div>
+				<form class="ui form" action="{{.Link}}" method="post">
+					{{.CsrfTokenHtml}}
+					<input type="hidden" name="action" value="convert">
+					<div class="field">
+						<label>
+							{{.i18n.Tr "repo.settings.transfer_form_title"}}
+							<span class="text red">{{.Repository.Name}}</span>
+						</label>
+					</div>
+					<div class="required field">
+						<label for="repo_name">{{.i18n.Tr "repo.repo_name"}}</label>
+						<input id="repo_name" name="repo_name" required>
+					</div>
 
-				<div class="text right actions">
-					<div class="ui cancel button">{{.i18n.Tr "settings.cancel"}}</div>
-					<button class="ui red button">{{.i18n.Tr "repo.settings.convert_confirm"}}</button>
-				</div>
-			</form>
+					<div class="text right actions">
+						<div class="ui cancel button">{{.i18n.Tr "settings.cancel"}}</div>
+						<button class="ui red button">{{.i18n.Tr "repo.settings.convert_confirm"}}</button>
+					</div>
+				</form>
+			</div>
 		</div>
-	</div>
 	{{end}}
+	{{if and .Repository.IsFork .Repository.Owner.CanCreateRepo}}
+		<div class="ui small modal" id="convert-fork-repo-modal">
+			<div class="header">
+				{{.i18n.Tr "repo.settings.convert_fork"}}
+			</div>
+			<div class="content">
+				<div class="ui warning message text left">
+					{{.i18n.Tr "repo.settings.convert_fork_notices_1"}}
+				</div>
+				<form class="ui form" action="{{.Link}}" method="post">
+					{{.CsrfTokenHtml}}
+					<input type="hidden" name="action" value="convert_fork">
+					<div class="field">
+						<label>
+							{{.i18n.Tr "repo.settings.transfer_form_title"}}
+							<span class="text red">{{.Repository.Name}}</span>
+						</label>
+					</div>
+					<div class="required field">
+						<label for="repo_name">{{.i18n.Tr "repo.repo_name"}}</label>
+						<input id="repo_name" name="repo_name" required>
+					</div>
 
+					<div class="text right actions">
+						<div class="ui cancel button">{{.i18n.Tr "settings.cancel"}}</div>
+						<button class="ui red button">{{.i18n.Tr "repo.settings.convert_fork_confirm"}}</button>
+					</div>
+				</form>
+			</div>
+		</div>
+	{{end}}
 	<div class="ui small modal" id="transfer-repo-modal">
 		<div class="header">
 			{{.i18n.Tr "repo.settings.transfer"}}
diff --git a/web_src/less/_repository.less b/web_src/less/_repository.less
index e986c41bf0..c10e8e59df 100644
--- a/web_src/less/_repository.less
+++ b/web_src/less/_repository.less
@@ -2796,7 +2796,10 @@
 }
 
 #transfer-repo-modal,
-#delete-repo-modal {
+#delete-repo-modal,
+#delete-wiki-modal,
+#convert-fork-repo-modal,
+#convert-mirror-repo-modal {
     .ui.message {
         width: 100% !important;
     }