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//go:generate go run generator.go
package jsonschema
import (
"encoding/json"
"fmt"
"os"
"reflect"
"strings"
"github.com/jesseduffield/lazycore/pkg/utils"
"github.com/jesseduffield/lazygit/pkg/config"
"github.com/invopop/jsonschema"
"github.com/samber/lo"
)
func GetSchemaDir() string {
return utils.GetLazyRootDirectory() + "/schema"
}
func GenerateSchema() *jsonschema.Schema {
schema := customReflect(&config.UserConfig{})
obj, _ := json.MarshalIndent(schema, "", " ")
obj = append(obj, '\n')
if err := os.WriteFile(GetSchemaDir()+"/config.json", obj, 0o644); err != nil {
fmt.Println("Error writing to file:", err)
return nil
}
return schema
}
func getSubSchema(rootSchema, parentSchema *jsonschema.Schema, key string) *jsonschema.Schema {
subSchema, found := parentSchema.Properties.Get(key)
if !found {
panic(fmt.Sprintf("Failed to find subSchema at %s on parent", key))
}
// This means the schema is defined on the rootSchema's Definitions
if subSchema.Ref != "" {
key, _ = strings.CutPrefix(subSchema.Ref, "#/$defs/")
refSchema, ok := rootSchema.Definitions[key]
if !ok {
panic(fmt.Sprintf("Failed to find #/$defs/%s", key))
}
refSchema.Description = subSchema.Description
return refSchema
}
return subSchema
}
func customReflect(v *config.UserConfig) *jsonschema.Schema {
r := &jsonschema.Reflector{FieldNameTag: "yaml", RequiredFromJSONSchemaTags: true}
if err := r.AddGoComments("github.com/jesseduffield/lazygit/pkg/config", "../config"); err != nil {
panic(err)
}
filterOutDevComments(r)
schema := r.Reflect(v)
defaultConfig := config.GetDefaultConfig()
userConfigSchema := schema.Definitions["UserConfig"]
defaultValue := reflect.ValueOf(defaultConfig).Elem()
yamlToFieldNames := lo.Invert(userConfigSchema.OriginalPropertiesMapping)
for pair := userConfigSchema.Properties.Oldest(); pair != nil; pair = pair.Next() {
yamlName := pair.Key
fieldName := yamlToFieldNames[yamlName]
subSchema := getSubSchema(schema, userConfigSchema, yamlName)
setDefaultVals(schema, subSchema, defaultValue.FieldByName(fieldName).Interface())
}
return schema
}
func filterOutDevComments(r *jsonschema.Reflector) {
for k, v := range r.CommentMap {
commentLines := strings.Split(v, "\n")
filteredCommentLines := lo.Filter(commentLines, func(line string, _ int) bool {
return !strings.Contains(line, "[dev]")
})
r.CommentMap[k] = strings.Join(filteredCommentLines, "\n")
}
}
func setDefaultVals(rootSchema, schema *jsonschema.Schema, defaults any) {
t := reflect.TypeOf(defaults)
v := reflect.ValueOf(defaults)
if t.Kind() == reflect.Ptr || t.Kind() == reflect.Interface {
t = t.Elem()
v = v.Elem()
}
k := t.Kind()
_ = k
switch t.Kind() {
case reflect.Bool:
schema.Default = v.Bool()
case reflect.Int:
schema.Default = v.Int()
case reflect.String:
schema.Default = v.String()
default:
// Do nothing
}
if t.Kind() != reflect.Struct {
return
}
for i := 0; i < t.NumField(); i++ {
value := v.Field(i).Interface()
parentKey := t.Field(i).Name
key, ok := schema.OriginalPropertiesMapping[parentKey]
if !ok {
continue
}
subSchema := getSubSchema(rootSchema, schema, key)
if isStruct(value) {
setDefaultVals(rootSchema, subSchema, value)
} else if !isZeroValue(value) {
subSchema.Default = value
}
}
}
func isZeroValue(v any) bool {
switch v := v.(type) {
case int, int32, int64, float32, float64:
return v == 0
case string:
return v == ""
case bool:
return false
case nil:
return true
}
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Slice, reflect.Map:
return rv.Len() == 0
case reflect.Ptr, reflect.Interface:
return rv.IsNil()
case reflect.Struct:
for i := 0; i < rv.NumField(); i++ {
if !isZeroValue(rv.Field(i).Interface()) {
return false
}
}
return true
default:
return false
}
}
func isStruct(v any) bool {
return reflect.TypeOf(v).Kind() == reflect.Struct
}
|
