// 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 ( "fmt" "os" "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, fmt.Errorf("could not change to the project working directory: %w", err) } return func() { // Restore the working directory after planning completes. cderr := os.Chdir(oldpwd) contract.IgnoreError(cderr) }, nil }