Add a way to opt out of repo code indexing, on a per-repo basis

models/repo/repo.go

@@ -158,6 +158,7 @@ type Repository struct {
 	CodeIndexerStatus               *RepoIndexerStatus `xorm:"-"`
 	StatsIndexerStatus              *RepoIndexerStatus `xorm:"-"`
 	IsFsckEnabled                   bool               `xorm:"NOT NULL DEFAULT true"`
+	IsCodeIndexingEnabled           bool               `xorm:"NOT NULL DEFAULT true"`
 	CloseIssuesViaCommitInAnyBranch bool               `xorm:"NOT NULL DEFAULT false"`
 	Topics                          []string           `xorm:"TEXT JSON"`
 

modules/indexer/code/indexer.go

@@ -93,6 +93,10 @@ func index(ctx context.Context, indexer Indexer, repoID int64) error {
 		return err
 	}
 
+	if !repo.IsCodeIndexingEnabled {
+		return indexer.Delete(repoID)
+	}
+
 	sha, err := getDefaultBranchSha(ctx, repo)
 	if err != nil {
 		return err

modules/repository/create.go

@@ -61,6 +61,7 @@ func CreateRepository(doer, u *user_model.User, opts models.CreateRepoOptions) (
 		IsEmpty:                         !opts.AutoInit,
 		TrustModel:                      opts.TrustModel,
 		IsMirror:                        opts.IsMirror,
+		IsCodeIndexingEnabled:           true,
 	}
 
 	var rollbackRepo *repo_model.Repository

options/locale/locale_en-US.ini

@@ -1792,6 +1792,8 @@ settings.site = Website
 settings.update_settings = Update Settings
 settings.branches.update_default_branch = Update Default Branch
 settings.advanced_settings = Advanced Settings
+settings.code_search_indexing = Code Search
+settings.code_search_indexing_desc = Enable code indexing for this repository
 settings.wiki_desc = Enable Repository Wiki
 settings.use_internal_wiki = Use Built-In Wiki
 settings.use_external_wiki = Use External Wiki

routers/web/repo/setting.go

@@ -382,6 +382,7 @@ func SettingsPost(ctx *context.Context) {
 
 	case "advanced":
 		var repoChanged bool
+		var codeIndexingChanged bool
 		var units []repo_model.RepoUnit
 		var deleteUnitTypes []unit_model.Type
 
@@ -394,6 +395,11 @@ func SettingsPost(ctx *context.Context) {
 			repoChanged = true
 		}
 
+		if repo.IsCodeIndexingEnabled != form.EnableCodeIndexing {
+			repo.IsCodeIndexingEnabled = form.EnableCodeIndexing
+			codeIndexingChanged = true
+		}
+
 		if form.EnableWiki && form.EnableExternalWiki && !unit_model.TypeExternalWiki.UnitGlobalDisabled() {
 			if !validation.IsValidExternalURL(form.ExternalWikiURL) {
 				ctx.Flash.Error(ctx.Tr("repo.settings.external_wiki_url_error"))
@@ -515,6 +521,13 @@ func SettingsPost(ctx *context.Context) {
 				ctx.ServerError("UpdateRepository", err)
 				return
 			}
+
+			if codeIndexingChanged {
+				// Whether we enabled or disabled indexing, trigger a repo indexer
+				// update. If we enabled, this will reindex the repo; if we disabled, it
+				// will delete the repo from the index.
+				code.UpdateRepoIndexer(ctx.Repo.Repository)
+			}
 		}
 		log.Trace("Repository advanced settings updated: %s/%s", ctx.Repo.Owner.Name, repo.Name)
 

services/forms/repo_form.go

@@ -168,6 +168,7 @@ type RepoSettingForm struct {
 
 	// Admin settings
 	EnableHealthCheck  bool
+	EnableCodeIndexing bool
 	RequestReindexType string
 }
 

templates/repo/settings/options.tmpl

@@ -420,6 +420,16 @@
 					</div>
 				</div>
 
+				{{if .CodeIndexerEnabled}}
+					<div class="inline field">
+						<label>{{.locale.Tr "repo.settings.code_search_indexing"}}</label>
+						<div class="ui checkbox">
+							<input class="enable-system" name="enable_code_indexing" type="checkbox" {{if .Repository.IsCodeIndexingEnabled}}checked{{end}}>
+							<label>{{.locale.Tr "repo.settings.code_search_indexing_desc"}}</label>
+						</div>
+					</div>
+				{{end}}
+
 				{{if not .IsMirror}}
 					<div class="ui divider"></div>
 					{{$pullRequestEnabled := .Repository.UnitEnabled $.UnitTypePullRequests}}
@@ -600,10 +610,11 @@
 			</form>
 
 			<div class="ui divider"></div>
+
 			<form class="ui form" method="post">
 				{{.CsrfTokenHtml}}
 				<input type="hidden" name="action" value="admin_index">
-				{{if .CodeIndexerEnabled}}
+				{{if and .CodeIndexerEnabled .Repository.IsCodeIndexingEnabled}}
 					<h4 class="ui header">{{.locale.Tr "repo.settings.admin_code_indexer"}}</h4>
 					<div class="inline fields">
 						<label>{{.locale.Tr "repo.settings.admin_indexer_commit_sha"}}</label>