[CHORE] Update jsonschema library to v6

- Update the `github.com/santhosh-tekuri/jsonschema` library from v5 to
v6.
- Update the migration loader function to a type, which is now required
in V6.
- `github.com/santhosh-tekuri/jsonschema/v6` was already used by gof3,
so removing the v5 library and using the v6 library reduces the binary
size of Forgejo.
  - Before: 95912040 bytes
  - After: 95706152 bytes

go.mod

@@ -90,7 +90,7 @@ require (
 	github.com/quasoft/websspi v1.1.2
 	github.com/redis/go-redis/v9 v9.5.4
 	github.com/robfig/cron/v3 v3.0.1
-	github.com/santhosh-tekuri/jsonschema/v5 v5.3.1
+	github.com/santhosh-tekuri/jsonschema/v6 v6.0.1
 	github.com/sassoftware/go-rpmutils v0.2.1-0.20240124161140-277b154961dd
 	github.com/sergi/go-diff v1.3.1
 	github.com/shurcooL/vfsgen v0.0.0-20230704071429-0000e147ea92
@@ -259,7 +259,6 @@ require (
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/sagikazarmark/locafero v0.4.0 // indirect
 	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
-	github.com/santhosh-tekuri/jsonschema/v6 v6.0.1 // indirect
 	github.com/segmentio/asm v1.2.0 // indirect
 	github.com/shopspring/decimal v1.4.0 // indirect
 	github.com/shurcooL/httpfs v0.0.0-20230704072500-f1e31cf0ba5c // indirect

go.sum

@@ -634,8 +634,6 @@ github.com/sagikazarmark/locafero v0.4.0 h1:HApY1R9zGo4DBgr7dqsTH/JJxLTTsOt7u6ke
 github.com/sagikazarmark/locafero v0.4.0/go.mod h1:Pe1W6UlPYUk/+wc/6KFhbORCfqzgYEpgQ3O5fPuL3H4=
 github.com/sagikazarmark/slog-shim v0.1.0 h1:diDBnUNK9N/354PgrxMywXnAwEr1QZcOr6gto+ugjYE=
 github.com/sagikazarmark/slog-shim v0.1.0/go.mod h1:SrcSrq8aKtyuqEI1uvTDTK1arOWRIczQRv+GVI1AkeQ=
-github.com/santhosh-tekuri/jsonschema/v5 v5.3.1 h1:lZUw3E0/J3roVtGQ+SCrUrg3ON6NgVqpn3+iol9aGu4=
-github.com/santhosh-tekuri/jsonschema/v5 v5.3.1/go.mod h1:uToXkOrWAZ6/Oc07xWQrPOhJotwFIyu2bBVN41fcDUY=
 github.com/santhosh-tekuri/jsonschema/v6 v6.0.1 h1:PKK9DyHxif4LZo+uQSgXNqs0jj5+xZwwfKHgph2lxBw=
 github.com/santhosh-tekuri/jsonschema/v6 v6.0.1/go.mod h1:JXeL+ps8p7/KNMjDQk3TCwPpBy0wYklyWTfbkIzdIFU=
 github.com/sassoftware/go-rpmutils v0.2.1-0.20240124161140-277b154961dd h1:KpbqRPDwcAQTyaP+L+YudTRb3CnJlQ64Hfn1SF/zHBA=

modules/migration/file_format.go

@@ -12,7 +12,7 @@ import (
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/log"
 
-	"github.com/santhosh-tekuri/jsonschema/v5"
+	"github.com/santhosh-tekuri/jsonschema/v6"
 	"gopkg.in/yaml.v3"
 )
 
@@ -43,7 +43,7 @@ func unmarshal(bs []byte, data any, isJSON bool) error {
 
 func getSchema(filename string) (*jsonschema.Schema, error) {
 	c := jsonschema.NewCompiler()
-	c.LoadURL = openSchema
+	c.UseLoader(&SchemaLoader{})
 	return c.Compile(filename)
 }
 

modules/migration/file_format_test.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/santhosh-tekuri/jsonschema/v5"
+	"github.com/santhosh-tekuri/jsonschema/v6"
 	"github.com/stretchr/testify/assert"
 )
 

modules/migration/schemas_dynamic.go

@@ -6,14 +6,17 @@
 package migration
 
 import (
-	"io"
 	"net/url"
 	"os"
 	"path"
 	"path/filepath"
+
+	"github.com/santhosh-tekuri/jsonschema/v6"
 )
 
-func openSchema(s string) (io.ReadCloser, error) {
+type SchemaLoader struct{}
+
+func (*SchemaLoader) Load(s string) (any, error) {
 	u, err := url.Parse(s)
 	if err != nil {
 		return nil, err
@@ -34,5 +37,11 @@ func openSchema(s string) (io.ReadCloser, error) {
 			filename = filepath.Join("modules/migration/schemas", basename)
 		}
 	}
-	return os.Open(filename)
+
+	f, err := os.Open(filename)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	return jsonschema.UnmarshalJSON(f)
 }

modules/migration/schemas_static.go

@@ -6,10 +6,18 @@
 package migration
 
 import (
-	"io"
 	"path"
+
+	"github.com/santhosh-tekuri/jsonschema/v6"
 )
 
-func openSchema(filename string) (io.ReadCloser, error) {
-	return Assets.Open(path.Base(filename))
+type SchemaLoader struct{}
+
+func (*SchemaLoader) Load(filename string) (any, error) {
+	f, err := Assets.Open(path.Base(filename))
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	return jsonschema.UnmarshalJSON(f)
 }

tests/integration/integration_test.go

@@ -56,7 +56,7 @@ import (
 	"github.com/markbates/goth/gothic"
 	goth_github "github.com/markbates/goth/providers/github"
 	goth_gitlab "github.com/markbates/goth/providers/gitlab"
-	"github.com/santhosh-tekuri/jsonschema/v5"
+	"github.com/santhosh-tekuri/jsonschema/v6"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -659,7 +659,7 @@ func VerifyJSONSchema(t testing.TB, resp *httptest.ResponseRecorder, schemaFile
 	_, schemaFileErr := os.Stat(schemaFilePath)
 	assert.Nil(t, schemaFileErr)
 
-	schema, err := jsonschema.Compile(schemaFilePath)
+	schema, err := jsonschema.NewCompiler().Compile(schemaFilePath)
 	assert.NoError(t, err)
 
 	var data any