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bufpluginexec_go19.go
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bufpluginexec_go19.go
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// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You 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.
//go:build go1.19
package bufpluginexec
import (
"errors"
"os/exec"
)
// unsafeLookPath is a wrapper around exec.LookPath that restores the original
// pre-Go 1.19 behavior of resolving queries that would use relative PATH
// entries. We consider it acceptable for the use case of locating plugins.
//
// On Go 1.18 and below, this function is just a direct call to exec.LookPath.
//
// https://pkg.go.dev/os/exec#hdr-Executables_in_the_current_directory
func unsafeLookPath(file string) (string, error) {
path, err := exec.LookPath(file)
if errors.Is(err, exec.ErrDot) {
err = nil
}
return path, err
}