| /* |
| * |
| * Copyright 2018 gRPC 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. |
| * |
| */ |
| |
| // vet checks whether files that are supposed to be built on appengine running |
| // Go 1.10 or earlier import an unsupported package (e.g. "unsafe", "syscall"). |
| package main |
| |
| import ( |
| "fmt" |
| "go/build" |
| "os" |
| ) |
| |
| func main() { |
| fail := false |
| b := build.Default |
| b.BuildTags = []string{"appengine", "appenginevm"} |
| argsWithoutProg := os.Args[1:] |
| for _, dir := range argsWithoutProg { |
| p, err := b.Import(".", dir, 0) |
| if _, ok := err.(*build.NoGoError); ok { |
| continue |
| } else if err != nil { |
| fmt.Printf("build.Import failed due to %v\n", err) |
| fail = true |
| continue |
| } |
| for _, pkg := range p.Imports { |
| if pkg == "syscall" || pkg == "unsafe" { |
| fmt.Printf("Package %s/%s importing %s package without appengine build tag is NOT ALLOWED!\n", p.Dir, p.Name, pkg) |
| fail = true |
| } |
| } |
| } |
| if fail { |
| os.Exit(1) |
| } |
| } |