Fix forked repo has no icon and language stat. (#10791)

* Update header.tmpl

* Update _repository.less

* Update pull.go

* Update indexer.go

* Update pull.go

* Update pull.go

* Update indexer.go

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

Thanks the advice from lunny and 6543.

* fix forked repo doesn't have language stat

Modified as suggested by 6543.

* fix forked repo doesn't have language stat

simplify the function.

* fix forked repo doesn't have language stat

update the indexer after the loop

Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: Lauris BH <lauris@nix.lv>

4 files changed, 35 insertions, 5 deletions

diff --git a/models/repo_language_stats.go b/models/repo_language_stats.go
index bf8f5f59d0..fd5bcbb8ec 100644
--- a/models/repo_language_stats.go
+++ b/models/repo_language_stats.go
@@ -144,3 +144,32 @@ func (repo *Repository) UpdateLanguageStats(commitID string, stats map[string]fl
 
 	return sess.Commit()
 }
+
+// CopyLanguageStat Copy originalRepo language stat information to destRepo (use for forked repo)
+func CopyLanguageStat(originalRepo, destRepo *Repository) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	RepoLang := make(LanguageStatList, 0, 6)
+	if err := sess.Where("`repo_id` = ?", originalRepo.ID).Desc("`percentage`").Find(&RepoLang); err != nil {
+		return err
+	}
+	if len(RepoLang) > 0 {
+		for i := range RepoLang {
+			RepoLang[i].ID = 0
+			RepoLang[i].RepoID = destRepo.ID
+			RepoLang[i].CreatedUnix = timeutil.TimeStampNow()
+		}
+		//update destRepo's indexer status
+		tmpCommitID := RepoLang[0].CommitID
+		if err := destRepo.updateIndexerStatus(sess, RepoIndexerTypeStats, tmpCommitID); err != nil {
+			return err
+		}
+		if _, err := sess.Insert(&RepoLang); err != nil {
+			return err
+		}
+	}
+	return sess.Commit()
+}
diff --git a/modules/repository/fork.go b/modules/repository/fork.go
index 638d3588ec..2ed2a0eb78 100644
--- a/modules/repository/fork.go
+++ b/modules/repository/fork.go
@@ -82,6 +82,8 @@ func ForkRepository(doer, owner *models.User, oldRepo *models.Repository, name,
 	if err = repo.UpdateSize(ctx); err != nil {
 		log.Error("Failed to update size for repository: %v", err)
 	}
-
+	if err := models.CopyLanguageStat(oldRepo, repo); err != nil {
+		log.Error("Copy language stat from oldRepo failed")
+	}
 	return repo, models.CopyLFS(ctx, repo, oldRepo)
 }
diff --git a/templates/repo/header.tmpl b/templates/repo/header.tmpl
index f4edc74396..4daaa201d0 100644
--- a/templates/repo/header.tmpl
+++ b/templates/repo/header.tmpl
@@ -17,7 +17,7 @@
 					{{else if .IsMirror}}
 						{{svg "octicon-repo-clone" 32}}
 					{{else if .IsFork}}
-						{{svg "octicon-repo-fork" 32}}
+						{{svg "octicon-repo-forked" 32}}
 					{{else}}
 						{{svg "octicon-repo" 32}}
 					{{end}}
@@ -38,7 +38,7 @@
 						{{else if .IsMirror}}
 							{{svg "octicon-repo-clone" 32}}
 						{{else if .IsFork}}
-							{{svg "octicon-repo-fork" 32}}
+							{{svg "octicon-repo-forked" 32}}
 						{{else}}
 							{{svg "octicon-repo" 32}}
 						{{end}}
@@ -76,7 +76,7 @@
 					{{if and (not .IsEmpty) ($.Permission.CanRead $.UnitTypeCode)}}
 						<div class="ui labeled button {{if and ($.IsSigned) (not $.CanSignedUserFork)}}disabled-repo-button{{end}}" tabindex="0">
 							<a class="ui compact basic button {{if or (not $.IsSigned) (not $.CanSignedUserFork)}}poping up{{end}}" {{if $.CanSignedUserFork}}href="{{AppSubUrl}}/repo/fork/{{.ID}}"{{else if $.IsSigned}} data-content="{{$.i18n.Tr "repo.fork_from_self"}}" {{ else }} data-content="{{$.i18n.Tr "repo.fork_guest_user" }}" rel="nofollow" href="{{AppSubUrl}}/user/login?redirect_to={{AppSubUrl}}/repo/fork/{{.ID}}" {{end}} data-position="top center" data-variation="tiny">
-								{{svg "octicon-repo-forked" 16}}{{$.i18n.Tr "repo.fork"}}
+								{{svg "octicon-repo-forked" 15}}{{$.i18n.Tr "repo.fork"}}
 							</a>
 							<a class="ui basic label" href="{{.Link}}/forks">
 								{{.NumForks}}
diff --git a/web_src/less/_repository.less b/web_src/less/_repository.less
index d3e84b10a4..cca31ee5f7 100644
--- a/web_src/less/_repository.less
+++ b/web_src/less/_repository.less
@@ -35,7 +35,6 @@
 
         .svg.octicon-repo-forked {
             margin-top: -1px;
-            height: 15px;
         }
 
         .button {