111 lines
2.5 KiB
Go
111 lines
2.5 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@probo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package iostreams
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import (
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"bytes"
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"io"
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"os"
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"github.com/charmbracelet/lipgloss"
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"github.com/muesli/termenv"
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"golang.org/x/term"
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)
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type IOStreams struct {
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In io.ReadCloser
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Out io.Writer
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ErrOut io.Writer
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// ForceNonInteractive disables all interactive prompts. Set by the
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// --no-interactive global flag or the PROBO_NO_INTERACTIVE env var.
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ForceNonInteractive bool
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// ForceNoColor disables ANSI color output. Set by the --no-color
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// global flag, the NO_COLOR env var, or TERM=dumb.
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ForceNoColor bool
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}
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func (s *IOStreams) IsInteractive() bool {
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if s.ForceNonInteractive {
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return false
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}
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return s.isStdinTTY() && s.isStdoutTTY()
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}
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func (s *IOStreams) isStdinTTY() bool {
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if f, ok := s.In.(*os.File); ok {
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return term.IsTerminal(int(f.Fd()))
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}
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return false
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}
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func (s *IOStreams) isStdoutTTY() bool {
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if f, ok := s.Out.(*os.File); ok {
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return term.IsTerminal(int(f.Fd()))
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}
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return false
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}
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func (s *IOStreams) IsStdinTTY() bool {
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return s.isStdinTTY()
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}
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func (s *IOStreams) IsStdoutTTY() bool {
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if s.ForceNonInteractive {
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return false
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}
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return s.isStdoutTTY()
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}
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func (s *IOStreams) ColorEnabled() bool {
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if s.ForceNoColor {
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return false
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}
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return s.isStdoutTTY()
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}
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// ApplyColorProfile configures the lipgloss default renderer based on
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// the current color settings. Call this after ForceNoColor has been set.
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func (s *IOStreams) ApplyColorProfile() {
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if s.ForceNoColor {
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lipgloss.SetColorProfile(termenv.Ascii)
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}
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}
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func System() *IOStreams {
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return &IOStreams{
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In: os.Stdin,
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Out: os.Stdout,
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ErrOut: os.Stderr,
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}
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}
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func Test() (*IOStreams, *bytes.Buffer, *bytes.Buffer) {
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out := new(bytes.Buffer)
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errOut := new(bytes.Buffer)
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return &IOStreams{
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In: io.NopCloser(new(bytes.Buffer)),
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Out: out,
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ErrOut: errOut,
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}, out, errOut
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}
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