1 files changed, 44 insertions, 0 deletions
diff --git a/modules/repository/collaborator.go b/modules/repository/collaborator.go
new file mode 100644
index 0000000..17915d3
--- /dev/null
+++ b/modules/repository/collaborator.go
@@ -0,0 +1,44 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repository
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"xorm.io/builder"
+)
+
+func AddCollaborator(ctx context.Context, repo *repo_model.Repository, u *user_model.User) error {
+	if user_model.IsBlocked(ctx, repo.OwnerID, u.ID) || user_model.IsBlocked(ctx, u.ID, repo.OwnerID) {
+		return user_model.ErrBlockedByUser
+	}
+
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		has, err := db.Exist[repo_model.Collaboration](ctx, builder.Eq{
+			"repo_id": repo.ID,
+			"user_id": u.ID,
+		})
+		if err != nil {
+			return err
+		} else if has {
+			return nil
+		}
+
+		if err = db.Insert(ctx, &repo_model.Collaboration{
+			RepoID: repo.ID,
+			UserID: u.ID,
+			Mode:   perm.AccessModeWrite,
+		}); err != nil {
+			return err
+		}
+
+		return access_model.RecalculateUserAccess(ctx, repo, u.ID)
+	})
+}