From 7888a55e8c854443d670b1572ed0a534e67d50db Mon Sep 17 00:00:00 2001
From: zeripath <art27@cantab.net>
Date: Sun, 4 Sep 2022 17:17:48 +0100
Subject: [PATCH] Delete unreferenced packages when deleting a package version
 (#20977) (#21060)

Backport #20977

Delete a package if its last version got deleted. Otherwise removing the owner works only after the clean up job ran.

Fix #20969

Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
---
 models/packages/package.go      | 11 +++++-
 models/packages/package_test.go | 69 +++++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+), 2 deletions(-)
 create mode 100644 models/packages/package_test.go

diff --git a/models/packages/package.go b/models/packages/package.go
index 97cfbc6cad..65c852a292 100644
--- a/models/packages/package.go
+++ b/models/packages/package.go
@@ -214,9 +214,16 @@ func FindUnreferencedPackages(ctx context.Context) ([]*Package, error) {
 		Find(&ps)
 }
 
-// HasOwnerPackages tests if a user/org has packages
+// HasOwnerPackages tests if a user/org has accessible packages
 func HasOwnerPackages(ctx context.Context, ownerID int64) (bool, error) {
-	return db.GetEngine(ctx).Where("owner_id = ?", ownerID).Exist(&Package{})
+	return db.GetEngine(ctx).
+		Table("package_version").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(builder.Eq{
+			"package_version.is_internal": false,
+			"package.owner_id":            ownerID,
+		}).
+		Exist(&PackageVersion{})
 }
 
 // HasRepositoryPackages tests if a repository has packages
diff --git a/models/packages/package_test.go b/models/packages/package_test.go
new file mode 100644
index 0000000000..3d3a2333ba
--- /dev/null
+++ b/models/packages/package_test.go
@@ -0,0 +1,69 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package packages_test
+
+import (
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	packages_model "code.gitea.io/gitea/models/packages"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	_ "code.gitea.io/gitea/models"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		GiteaRootPath: filepath.Join("..", ".."),
+	})
+}
+
+func TestHasOwnerPackages(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	p, err := packages_model.TryInsertPackage(db.DefaultContext, &packages_model.Package{
+		OwnerID:   owner.ID,
+		LowerName: "package",
+	})
+	assert.NotNil(t, p)
+	assert.NoError(t, err)
+
+	// A package without package versions gets automatically cleaned up and should return false
+	has, err := packages_model.HasOwnerPackages(db.DefaultContext, owner.ID)
+	assert.False(t, has)
+	assert.NoError(t, err)
+
+	pv, err := packages_model.GetOrInsertVersion(db.DefaultContext, &packages_model.PackageVersion{
+		PackageID:    p.ID,
+		LowerVersion: "internal",
+		IsInternal:   true,
+	})
+	assert.NotNil(t, pv)
+	assert.NoError(t, err)
+
+	// A package with an internal package version gets automaticaly cleaned up and should return false
+	has, err = packages_model.HasOwnerPackages(db.DefaultContext, owner.ID)
+	assert.False(t, has)
+	assert.NoError(t, err)
+
+	pv, err = packages_model.GetOrInsertVersion(db.DefaultContext, &packages_model.PackageVersion{
+		PackageID:    p.ID,
+		LowerVersion: "normal",
+		IsInternal:   false,
+	})
+	assert.NotNil(t, pv)
+	assert.NoError(t, err)
+
+	// A package with a normal package version should return true
+	has, err = packages_model.HasOwnerPackages(db.DefaultContext, owner.ID)
+	assert.True(t, has)
+	assert.NoError(t, err)
+}