/
usage.go
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/
usage.go
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// Copyright 2020-2022 Buf Technologies, Inc.
//
// 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 usage
import (
"errors"
"fmt"
"os"
"path/filepath"
"runtime/debug"
"strings"
)
const debugBinPrefix = "__debug_bin"
func init() {
if err := check(); err != nil {
panic(err.Error())
}
}
func check() error {
buildInfo, ok := debug.ReadBuildInfo()
if !ok || buildInfo.Main.Path == "" {
// Detect and allow *.test and __debug_bin* files.
if !strings.HasSuffix(os.Args[0], testSuffix) && !strings.HasPrefix(filepath.Base(os.Args[0]), debugBinPrefix) {
return errors.New("github.com/bufbuild/buf/private code must only be imported by github.com/bufbuild projects")
}
return nil
}
if !strings.HasPrefix(buildInfo.Main.Path, "github.com/bufbuild") {
return fmt.Errorf("github.com/bufbuild/buf/private code must only be imported by github.com/bufbuild projects but was used in %s", buildInfo.Main.Path)
}
return nil
}