Enable more revive linter rules (#30608)

Noteable additions:

- `redefines-builtin-id` forbid variable names that shadow go builtins
- `empty-lines` remove unnecessary empty lines that `gofumpt` does not
remove for some reason
- `superfluous-else` eliminate more superfluous `else` branches

Rules are also sorted alphabetically and I cleaned up various parts of
`.golangci.yml`.

routers/web/repo/actions/view.go

@@ -644,7 +644,6 @@ func ArtifactsDownloadView(ctx *context_module.Context) {
 	writer := zip.NewWriter(ctx.Resp)
 	defer writer.Close()
 	for _, art := range artifacts {
-
 		f, err := storage.ActionsArtifacts.Open(art.StoragePath)
 		if err != nil {
 			ctx.Error(http.StatusInternalServerError, err.Error())

routers/web/repo/issue.go

@@ -933,7 +933,6 @@ func setTemplateIfExists(ctx *context.Context, ctxDataKey string, possibleFiles
 					}
 				}
 			}
-
 		}
 
 		if template.Ref != "" && !strings.HasPrefix(template.Ref, "refs/") { // Assume that the ref intended is always a branch - for tags users should use refs/tags/<ref>
@@ -1681,7 +1680,6 @@ func ViewIssue(ctx *context.Context) {
 			if comment.ProjectID > 0 && comment.Project == nil {
 				comment.Project = ghostProject
 			}
-
 		} else if comment.Type == issues_model.CommentTypeAssignees || comment.Type == issues_model.CommentTypeReviewRequest {
 			if err = comment.LoadAssigneeUserAndTeam(ctx); err != nil {
 				ctx.ServerError("LoadAssigneeUserAndTeam", err)
@@ -2610,7 +2608,6 @@ func SearchIssues(ctx *context.Context) {
 
 	var includedAnyLabels []int64
 	{
-
 		labels := ctx.FormTrim("labels")
 		var includedLabelNames []string
 		if len(labels) > 0 {
@@ -2994,7 +2991,6 @@ func NewComment(ctx *context.Context) {
 		if (ctx.Repo.CanWriteIssuesOrPulls(issue.IsPull) || (ctx.IsSigned && issue.IsPoster(ctx.Doer.ID))) &&
 			(form.Status == "reopen" || form.Status == "close") &&
 			!(issue.IsPull && issue.PullRequest.HasMerged) {
-
 			// Duplication and conflict check should apply to reopen pull request.
 			var pr *issues_model.PullRequest
 

routers/web/repo/pull.go

@@ -443,7 +443,6 @@ func PrepareViewPullInfo(ctx *context.Context, issue *issues_model.Issue) *git.C
 	}
 
 	if pb != nil && pb.EnableStatusCheck {
-
 		var missingRequiredChecks []string
 		for _, requiredContext := range pb.StatusCheckContexts {
 			contextFound := false
@@ -646,7 +645,6 @@ func viewPullFiles(ctx *context.Context, specifiedStartCommit, specifiedEndCommi
 
 	// Validate the given commit sha to show (if any passed)
 	if willShowSpecifiedCommit || willShowSpecifiedCommitRange {
-
 		foundStartCommit := len(specifiedStartCommit) == 0
 		foundEndCommit := len(specifiedEndCommit) == 0
 
@@ -974,7 +972,6 @@ func UpdatePullRequest(ctx *context.Context) {
 			ctx.Flash.Error(flashError)
 			ctx.Redirect(issue.Link())
 			return
-
 		}
 		ctx.Flash.Error(err.Error())
 		ctx.Redirect(issue.Link())

routers/web/repo/pull_review.go

@@ -318,7 +318,6 @@ func UpdateViewedFiles(ctx *context.Context) {
 
 	updatedFiles := make(map[string]pull_model.ViewedState, len(data.Files))
 	for file, viewed := range data.Files {
-
 		// Only unviewed and viewed are possible, has-changed can not be set from the outside
 		state := pull_model.Unviewed
 		if viewed {

routers/web/repo/view.go

@@ -347,7 +347,6 @@ func loadLatestCommitData(ctx *context.Context, latestCommit *git.Commit) bool {
 	// or of directory if not in root directory.
 	ctx.Data["LatestCommit"] = latestCommit
 	if latestCommit != nil {
-
 		verification := asymkey_model.ParseCommitWithSignature(ctx, latestCommit)
 
 		if err := asymkey_model.CalculateTrustStatus(verification, ctx.Repo.Repository.GetTrustModel(), func(user *user_model.User) (bool, error) {