| // Copyright 2019 The LUCI Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package lucicfg |
| |
| import ( |
| "encoding/base64" |
| "encoding/hex" |
| "fmt" |
| |
| "go.starlark.net/starlark" |
| "gopkg.in/yaml.v2" |
| |
| "go.chromium.org/luci/common/data/text/intsetexpr" |
| ) |
| |
| // See //internal/strutil.star for where these functions are referenced. |
| func init() { |
| declNative("expand_int_set", func(call nativeCall) (starlark.Value, error) { |
| var s starlark.String |
| if err := call.unpack(1, &s); err != nil { |
| return nil, err |
| } |
| res, err := intsetexpr.Expand(s.GoString()) |
| if err != nil { |
| return nil, fmt.Errorf("expand_int_set: %s", err) |
| } |
| out := make([]starlark.Value, len(res)) |
| for i, r := range res { |
| out[i] = starlark.String(r) |
| } |
| return starlark.NewList(out), nil |
| }) |
| |
| declNative("json_to_yaml", func(call nativeCall) (starlark.Value, error) { |
| var json starlark.String |
| if err := call.unpack(1, &json); err != nil { |
| return nil, err |
| } |
| var buf any |
| if err := yaml.Unmarshal([]byte(json.GoString()), &buf); err != nil { |
| return nil, fmt.Errorf("failed to unmarshal JSON as YAML: %s", err) |
| } |
| out, err := yaml.Marshal(buf) |
| if err != nil { |
| return nil, err |
| } |
| return starlark.String(out), nil |
| }) |
| |
| declNative("b64_encode", func(call nativeCall) (starlark.Value, error) { |
| var s starlark.String |
| if err := call.unpack(1, &s); err != nil { |
| return nil, err |
| } |
| return starlark.String(base64.StdEncoding.EncodeToString([]byte(s.GoString()))), nil |
| }) |
| |
| declNative("b64_decode", func(call nativeCall) (starlark.Value, error) { |
| var s starlark.String |
| if err := call.unpack(1, &s); err != nil { |
| return nil, err |
| } |
| raw, err := base64.StdEncoding.DecodeString(s.GoString()) |
| if err != nil { |
| return nil, err |
| } |
| return starlark.String(string(raw)), nil |
| }) |
| |
| declNative("hex_encode", func(call nativeCall) (starlark.Value, error) { |
| var s starlark.String |
| if err := call.unpack(1, &s); err != nil { |
| return nil, err |
| } |
| return starlark.String(hex.EncodeToString([]byte(s.GoString()))), nil |
| }) |
| |
| declNative("hex_decode", func(call nativeCall) (starlark.Value, error) { |
| var s starlark.String |
| if err := call.unpack(1, &s); err != nil { |
| return nil, err |
| } |
| raw, err := hex.DecodeString(s.GoString()) |
| if err != nil { |
| return nil, err |
| } |
| return starlark.String(string(raw)), nil |
| }) |
| } |