43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package fsutil
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import (
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"os"
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"github.com/pkg/errors"
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"github.com/pulumi/pulumi/sdk/go/common/util/contract"
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)
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// Chdir changes the directory so that all operations from now on are relative to the project we are working with.
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// It returns a function that, when run, restores the old working directory.
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func Chdir(pwd string) (func(), error) {
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if pwd == "" {
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return func() {}, nil
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}
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oldpwd, err := os.Getwd()
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if err != nil {
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return nil, err
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}
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if err = os.Chdir(pwd); err != nil {
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return nil, errors.Wrapf(err, "could not change to the project working directory")
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}
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return func() {
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// Restore the working directory after planning completes.
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cderr := os.Chdir(oldpwd)
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contract.IgnoreError(cderr)
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}, nil
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}
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