Move unit into models/unit/ (#17576)

* Move unit into models/unit/

* Rename unit.UnitType as unit.Type

routers/private/serv.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 
 	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/models/unit"
 	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
@@ -93,12 +94,12 @@ func ServCommand(ctx *context.PrivateContext) {
 	}
 
 	// The default unit we're trying to look at is code
-	unitType := models.UnitTypeCode
+	unitType := unit.TypeCode
 
 	// Unless we're a wiki...
 	if strings.HasSuffix(repoName, ".wiki") {
 		// in which case we need to look at the wiki
-		unitType = models.UnitTypeWiki
+		unitType = unit.TypeWiki
 		// And we'd better munge the reponame and tell downstream we're looking at a wiki
 		results.IsWiki = true
 		results.RepoName = repoName[:len(repoName)-5]
@@ -295,7 +296,7 @@ func ServCommand(ctx *context.PrivateContext) {
 			}
 		} else {
 			// Because of the special ref "refs/for" we will need to delay write permission check
-			if git.SupportProcReceive && unitType == models.UnitTypeCode {
+			if git.SupportProcReceive && unitType == unit.TypeCode {
 				mode = models.AccessModeRead
 			}
 
@@ -362,7 +363,7 @@ func ServCommand(ctx *context.PrivateContext) {
 
 	if results.IsWiki {
 		// Ensure the wiki is enabled before we allow access to it
-		if _, err := repo.GetUnit(models.UnitTypeWiki); err != nil {
+		if _, err := repo.GetUnit(unit.TypeWiki); err != nil {
 			if models.IsErrUnitTypeNotExist(err) {
 				ctx.JSON(http.StatusForbidden, private.ErrServCommand{
 					Results: results,