84 lines
2.3 KiB
Rust
84 lines
2.3 KiB
Rust
use crate::builder::StyledStr;
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use crate::util::color::ColorChoice;
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#[derive(Copy, Clone, Debug, PartialEq, Eq)]
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pub(crate) enum Stream {
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Stdout,
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Stderr,
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}
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#[derive(Clone, Debug)]
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pub(crate) struct Colorizer {
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stream: Stream,
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#[allow(unused)]
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color_when: ColorChoice,
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content: StyledStr,
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}
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impl Colorizer {
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pub(crate) fn new(stream: Stream, color_when: ColorChoice) -> Self {
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Colorizer {
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stream,
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color_when,
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content: Default::default(),
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}
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}
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pub(crate) fn with_content(mut self, content: StyledStr) -> Self {
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self.content = content;
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self
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}
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}
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/// Printing methods.
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impl Colorizer {
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#[cfg(feature = "color")]
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pub(crate) fn print(&self) -> std::io::Result<()> {
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let color_when = match self.color_when {
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ColorChoice::Always => anstream::ColorChoice::Always,
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ColorChoice::Auto => anstream::ColorChoice::Auto,
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ColorChoice::Never => anstream::ColorChoice::Never,
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};
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let mut stdout;
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let mut stderr;
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let writer: &mut dyn std::io::Write = match self.stream {
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Stream::Stderr => {
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stderr = anstream::AutoStream::new(std::io::stderr().lock(), color_when);
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&mut stderr
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}
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Stream::Stdout => {
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stdout = anstream::AutoStream::new(std::io::stdout().lock(), color_when);
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&mut stdout
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}
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};
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self.content.write_to(writer)
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}
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#[cfg(not(feature = "color"))]
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pub(crate) fn print(&self) -> std::io::Result<()> {
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// [e]println can't be used here because it panics
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// if something went wrong. We don't want that.
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match self.stream {
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Stream::Stdout => {
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let stdout = std::io::stdout();
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let mut stdout = stdout.lock();
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self.content.write_to(&mut stdout)
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}
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Stream::Stderr => {
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let stderr = std::io::stderr();
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let mut stderr = stderr.lock();
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self.content.write_to(&mut stderr)
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}
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}
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}
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}
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/// Color-unaware printing. Never uses coloring.
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impl std::fmt::Display for Colorizer {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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self.content.fmt(f)
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}
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}
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