mirror of https://github.com/istio/proxy.git
103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
// Copyright 2020 Istio 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 main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"flag"
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
|
|
"go.starlark.net/starlark"
|
|
)
|
|
|
|
var (
|
|
wellknownIgnoreExtensions = flag.String("ignore-extensions", "wellknown-extensions", "file contains list of extensions to ignore")
|
|
envoyExtensionsBuildConfig = flag.String("envoy-extensions-build-config", "envoy_extensions_build_config.bzl", "envoy extensions build config file")
|
|
proxyExtensionsBuildConfig = flag.String("proxy-extensions-build-config", "proxy_extensions_build_config.bzl", "proxy extensions build config file")
|
|
)
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
envoyCoreExtensions, err := extensions(*envoyExtensionsBuildConfig, "EXTENSIONS")
|
|
if err != nil {
|
|
fmt.Printf("error: %v", err)
|
|
os.Exit(1)
|
|
}
|
|
|
|
proxyExtensions, err := extensions(*proxyExtensionsBuildConfig, "ENVOY_EXTENSIONS")
|
|
if err != nil {
|
|
fmt.Printf("error: %v", err)
|
|
os.Exit(1)
|
|
}
|
|
|
|
for k, expected := range envoyCoreExtensions {
|
|
if actual, ok := proxyExtensions[k]; ok && expected == actual {
|
|
delete(envoyCoreExtensions, k)
|
|
}
|
|
}
|
|
|
|
ignoreExtensions := []string{}
|
|
if _, err := os.Stat(*wellknownIgnoreExtensions); err == nil {
|
|
if b, err := os.ReadFile(*wellknownIgnoreExtensions); err == nil {
|
|
wellkonwns := strings.Split(string(b), "\n")
|
|
ignoreExtensions = append(ignoreExtensions, wellkonwns...)
|
|
}
|
|
|
|
fmt.Println("ignore extensions: ", len(ignoreExtensions))
|
|
|
|
for _, ext := range ignoreExtensions {
|
|
delete(envoyCoreExtensions, ext)
|
|
}
|
|
} else {
|
|
fmt.Println(err)
|
|
}
|
|
|
|
if len(envoyCoreExtensions) > 0 {
|
|
for k, v := range envoyCoreExtensions {
|
|
fmt.Printf("missing extension: %v: %v\n", k, v)
|
|
}
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
|
|
// extensions returns a map of extensions from the given file with giving key.
|
|
// The file is expected to be a starlark file that defines a global variable.
|
|
// Depends on go.starlark.net/starlark.
|
|
func extensions(filename, key string) (map[string]string, error) {
|
|
thread := &starlark.Thread{
|
|
Name: "extensions",
|
|
Print: func(_ *starlark.Thread, msg string) { fmt.Println(msg) },
|
|
}
|
|
globals, err := starlark.ExecFile(thread, filename, nil, nil)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
if v, ok := globals[key]; ok {
|
|
extensions := map[string]string{}
|
|
|
|
if err := json.Unmarshal([]byte(v.String()), &extensions); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return extensions, nil
|
|
}
|
|
|
|
return nil, errors.New("no extensions found")
|
|
}
|