Create robots.txt in the domain root directory

Before a robots.txt is created in every Site. So in public/robots.txt if there are no languages (was correct). But if there are multiple languages in every language directory, too (was wrong). If defaultContentLanguageInSubdir is true, no language is created into the root directory, so no robots.txt is in the root directory (was wrong). If multihosts are configured for each language, that is the only case where one robots.txt must be created in each language directory (was correct).

I've changed the behaviour, that only in the multihost case the robots.txt is created in the language directories. In any other case it is created in public/robots.txt. I've also added tests that files are not created in the wrong directories.

Fixes #5160
See also #4193

1 files changed, 34 insertions, 1 deletions

diff --git a/hugolib/hugo_sites.go b/hugolib/hugo_sites.go
index e71e48d41..ee0d5c563 100644
--- a/hugolib/hugo_sites.go
+++ b/hugolib/hugo_sites.go
@@ -49,6 +49,7 @@ import (
 
 	"github.com/gohugoio/hugo/langs/i18n"
 	"github.com/gohugoio/hugo/resources/page"
+	"github.com/gohugoio/hugo/resources/page/pagemeta"
 	"github.com/gohugoio/hugo/tpl"
 	"github.com/gohugoio/hugo/tpl/tplimpl"
 )
@@ -690,7 +691,7 @@ func (cfg *BuildCfg) shouldRender(p *pageState) bool {
 	return false
 }
 
-func (h *HugoSites) renderCrossSitesArtifacts() error {
+func (h *HugoSites) renderCrossSitesSitemap() error {
 
 	if !h.multilingual.enabled() || h.IsMultihost() {
 		return nil
@@ -716,6 +717,38 @@ func (h *HugoSites) renderCrossSitesArtifacts() error {
 		s.siteCfg.sitemap.Filename, h.toSiteInfos(), templ)
 }
 
+func (h *HugoSites) renderCrossSitesRobotsTXT() error {
+	if h.multihost {
+		return nil
+	}
+	if !h.Cfg.GetBool("enableRobotsTXT") {
+		return nil
+	}
+
+	s := h.Sites[0]
+
+	p, err := newPageStandalone(&pageMeta{
+		s:    s,
+		kind: kindRobotsTXT,
+		urlPaths: pagemeta.URLPath{
+			URL: "robots.txt",
+		},
+	},
+		output.RobotsTxtFormat)
+
+	if err != nil {
+		return err
+	}
+
+	if !p.render {
+		return nil
+	}
+
+	templ := s.lookupLayouts("robots.txt", "_default/robots.txt", "_internal/_default/robots.txt")
+
+	return s.renderAndWritePage(&s.PathSpec.ProcessingStats.Pages, "Robots Txt", "robots.txt", p, templ)
+}
+
 func (h *HugoSites) removePageByFilename(filename string) {
 	h.getContentMaps().withMaps(func(m *pageMap) error {
 		m.deleteBundleMatching(func(b *contentNode) bool {