lure-updater/internal/builtins/store.go

99 lines
2.8 KiB
Go
Raw Normal View History

2023-06-09 17:48:46 +00:00
package builtins
import (
"go.elara.ws/logger/log"
"go.etcd.io/bbolt"
"go.starlark.net/starlark"
"go.starlark.net/starlarkstruct"
)
func storeModule(db *bbolt.DB, bucketName string) *starlarkstruct.Module {
return &starlarkstruct.Module{
Name: "store",
Members: starlark.StringDict{
"set": storeSet(db, bucketName),
"get": storeGet(db, bucketName),
"delete": storeDelete(db, bucketName),
},
}
}
func storeSet(db *bbolt.DB, bucketName string) *starlark.Builtin {
return starlark.NewBuiltin("store.set", func(thread *starlark.Thread, b *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
var key, value string
err := starlark.UnpackArgs("store.set", args, kwargs, "key", &key, "value", &value)
if err != nil {
return nil, err
}
err = db.Update(func(tx *bbolt.Tx) error {
bucket, err := tx.CreateBucketIfNotExists([]byte(bucketName))
if err != nil {
return err
}
err = bucket.Put([]byte(key), []byte(value))
if err != nil {
return err
}
return nil
})
if err != nil {
return nil, err
}
log.Debug("Set value").Str("bucket", bucketName).Str("key", key).Str("value", value).Stringer("pos", thread.CallFrame(1).Pos).Send()
return starlark.None, nil
})
}
func storeGet(db *bbolt.DB, bucketName string) *starlark.Builtin {
return starlark.NewBuiltin("store.get", func(thread *starlark.Thread, b *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
var key string
err := starlark.UnpackArgs("store.get", args, kwargs, "key", &key)
if err != nil {
return nil, err
}
var value string
err = db.Update(func(tx *bbolt.Tx) error {
bucket, err := tx.CreateBucketIfNotExists([]byte(bucketName))
if err != nil {
return err
}
data := bucket.Get([]byte(key))
value = string(data)
return nil
})
if err != nil {
return nil, err
}
log.Debug("Retrieved value").Str("bucket", bucketName).Str("key", key).Str("value", value).Stringer("pos", thread.CallFrame(1).Pos).Send()
return starlark.String(value), nil
})
}
func storeDelete(db *bbolt.DB, bucketName string) *starlark.Builtin {
return starlark.NewBuiltin("store.delete", func(thread *starlark.Thread, b *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
var key string
err := starlark.UnpackArgs("store.delete", args, kwargs, "key", &key)
if err != nil {
return nil, err
}
err = db.Update(func(tx *bbolt.Tx) error {
bucket, err := tx.CreateBucketIfNotExists([]byte(bucketName))
if err != nil {
return err
}
return bucket.Delete([]byte(key))
})
if err != nil {
return nil, err
}
log.Debug("Deleted value").Str("bucket", bucketName).Str("key", key).Stringer("pos", thread.CallFrame(1).Pos).Send()
return starlark.None, nil
})
}