811759fb77
I was reminded of this yesterday with unprintable characters as I debugged some things on Windows. Inspired by Yarn, this change adds a new flag --emoji (-e for short) that can be used to control whether we show ASCII-only characters or not in the console. On Mac, it defaults to true, and on Windows and Linux, it defaults to false. This also brings back the retro ASCII-friendly progress spinner when --emoji is disabled.
65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
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package cmdutil
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import (
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"bufio"
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"fmt"
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"os"
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"runtime"
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"strings"
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"golang.org/x/crypto/ssh/terminal"
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"github.com/pulumi/pulumi/pkg/diag/colors"
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)
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// Emoji controls whether emojis will by default be printed in the output.
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var Emoji = (runtime.GOOS == "darwin")
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// EmojiOr returns the emoji string e if emojis are enabled, or the string or if emojis are disabled.
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func EmojiOr(e, or string) string {
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if Emoji {
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return e
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}
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return or
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}
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// Interactive returns true if we're in an interactive terminal session.
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func Interactive() bool {
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return terminal.IsTerminal(int(os.Stdin.Fd()))
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}
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// ReadConsole reads the console with the given prompt text.
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func ReadConsole(prompt string) (string, error) {
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if prompt != "" {
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prompt = colors.ColorizeText(
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fmt.Sprintf("%s%s:%s ", colors.BrightCyan, prompt, colors.Reset))
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fmt.Print(prompt)
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}
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reader := bufio.NewReader(os.Stdin)
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raw, err := reader.ReadString('\n')
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if err != nil {
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return "", err
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}
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return RemoveTralingNewline(raw), nil
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}
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// IsTruthy returns true if the given string represents a CLI input interpreted as "true".
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func IsTruthy(s string) bool {
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return s == "1" || strings.EqualFold(s, "true")
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}
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// RemoveTralingNewline removes a trailing newline from a string. On windows, we'll remove either \r\n or \n, on other
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// platforms, we just remove \n.
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func RemoveTralingNewline(s string) string {
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s = strings.TrimSuffix(s, "\n")
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if runtime.GOOS == "windows" {
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s = strings.TrimSuffix(s, "\r")
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}
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return s
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}
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