blob: 475e8d683fc3761e18771ed7a7615ede1996d6b7 [file] [log] [blame]
/*
*
* 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)
}
}