/
chdir.go
42 lines (38 loc) 路 1.3 KB
/
chdir.go
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// Copyright 2016-2018, Pulumi Corporation.
//
// 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 fsutil
import (
"os"
"github.com/pkg/errors"
"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
)
// Chdir changes the directory so that all operations from now on are relative to the project we are working with.
// It returns a function that, when run, restores the old working directory.
func Chdir(pwd string) (func(), error) {
if pwd == "" {
return func() {}, nil
}
oldpwd, err := os.Getwd()
if err != nil {
return nil, err
}
if err = os.Chdir(pwd); err != nil {
return nil, errors.Wrapf(err, "could not change to the project working directory")
}
return func() {
// Restore the working directory after planning completes.
cderr := os.Chdir(oldpwd)
contract.IgnoreError(cderr)
}, nil
}