Remove the internal GitInfo type and make Page.GitInf() return a pointer

See #5693

hugolib/gitinfo.go

@@ -30,14 +30,14 @@ type gitInfo struct {
 	repo       *gitmap.GitRepo
 }
 
-func (g *gitInfo) forPage(p page.Page) source.GitInfo {
+func (g *gitInfo) forPage(p page.Page) *source.GitInfo {
 	name := strings.TrimPrefix(filepath.ToSlash(p.File().Filename()), g.contentDir)
 	name = strings.TrimPrefix(name, "/")
 	gi, found := g.repo.Files[name]
 	if !found {
-		return source.GitInfo{}
+		return nil
 	}
-	return source.NewGitInfo(*gi)
+	return gi
 }
 
 func newGitInfo(d *deps.Deps) (*gitInfo, error) {

hugolib/hugo_sites.go

@@ -230,13 +230,13 @@ func (h *HugoSites) RegularPages() page.Pages {
 	return v
 }
 
-func (h *HugoSites) gitInfoForPage(p page.Page) (source.GitInfo, error) {
+func (h *HugoSites) gitInfoForPage(p page.Page) (*source.GitInfo, error) {
 	if _, err := h.init.gitInfo.Do(context.Background()); err != nil {
-		return source.GitInfo{}, err
+		return nil, err
 	}
 
 	if h.gitInfo == nil {
-		return source.GitInfo{}, nil
+		return nil, nil
 	}
 
 	return h.gitInfo.forPage(p), nil

hugolib/page.go

@@ -238,7 +238,7 @@ func (p *pageState) ApplyFilterToHeadings(ctx context.Context, fn func(*tableofc
 	}
 }
 
-func (p *pageState) GitInfo() source.GitInfo {
+func (p *pageState) GitInfo() *source.GitInfo {
 	return p.gitInfo
 }
 

hugolib/page__common.go

@@ -86,7 +86,7 @@ type pageCommon struct {
 	targetPathDescriptor page.TargetPathDescriptor
 
 	// Set if feature enabled and this is in a Git repo.
-	gitInfo    source.GitInfo
+	gitInfo    *source.GitInfo
 	codeowners []string
 
 	// Positional navigation

hugolib/page__meta.go

@@ -405,7 +405,7 @@ func (p *pageState) setMetaPostParams() error {
 	}
 
 	var gitAuthorDate time.Time
-	if !p.gitInfo.IsZero() {
+	if p.gitInfo != nil {
 		gitAuthorDate = p.gitInfo.AuthorDate
 	}