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* Updating the license from MPL to Business Source License Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at https://hashi.co/bsl-blog, FAQ at https://hashi.co/license-faq, and details of the license at www.hashicorp.com/bsl. * Update copyright file headers to BUSL-1.1 --------- Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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// STOLEN SHAMELESSLY FROM THE TERRAFORM REPO BECAUSE VENDORING OUT
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// WRAPPEDREADLINE AND WRAPPEDSTREAMS FELT LIKE TOO MUCH WORK.
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//
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// "a little copying is better than a lot of dependency"
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//
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// Package wrappedstreams provides access to the standard OS streams
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// (stdin, stdout, stderr) even if wrapped under panicwrap.
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package wrappedstreams
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import (
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"os"
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"github.com/mitchellh/panicwrap"
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)
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// Stdin returns the true stdin of the process.
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func Stdin() *os.File {
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stdin, _, _ := fds()
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return stdin
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}
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// Stdout returns the true stdout of the process.
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func Stdout() *os.File {
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_, stdout, _ := fds()
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return stdout
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}
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// Stderr returns the true stderr of the process.
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func Stderr() *os.File {
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_, _, stderr := fds()
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return stderr
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}
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func fds() (stdin, stdout, stderr *os.File) {
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stdin, stdout, stderr = os.Stdin, os.Stdout, os.Stderr
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if panicwrap.Wrapped(nil) {
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initPlatform()
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stdin, stdout, stderr = wrappedStdin, wrappedStdout, wrappedStderr
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}
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return
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}
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// These are the wrapped standard streams. These are setup by the
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// platform specific code in initPlatform.
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var (
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wrappedStdin *os.File
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wrappedStdout *os.File
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wrappedStderr *os.File
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)
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