surma
b9e3e3677d
rg (ripgrep 15.2), grep (ours, on ripgrep's regex crates), find and xargs (ours), sed (uutils 0.3 wrapper), diff and cmp (uutils diffutils 0.6 with -r), fd 10.5, jaq 2.3, env and timeout. userland/spawn is a small Command-like client of the process interface. search-test.nu: 42 cases match native tools.
73 lines
2.1 KiB
Rust
73 lines
2.1 KiB
Rust
/*!
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Defines a super simple logger that works with the `log` crate.
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We don't do anything fancy. We just need basic log levels and the ability to
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print to stderr. We therefore avoid bringing in extra dependencies just for
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this functionality.
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*/
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use log::Log;
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/// The simplest possible logger that logs to stderr.
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///
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/// This logger does no filtering. Instead, it relies on the `log` crates
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/// filtering via its global max_level setting.
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#[derive(Debug)]
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pub(crate) struct Logger(());
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/// A singleton used as the target for an implementation of the `Log` trait.
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const LOGGER: &'static Logger = &Logger(());
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impl Logger {
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/// Create a new logger that logs to stderr and initialize it as the
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/// global logger. If there was a problem setting the logger, then an
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/// error is returned.
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pub(crate) fn init() -> Result<(), log::SetLoggerError> {
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log::set_logger(LOGGER)
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}
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}
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impl Log for Logger {
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fn enabled(&self, _: &log::Metadata<'_>) -> bool {
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// We set the log level via log::set_max_level, so we don't need to
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// implement filtering here.
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true
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}
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fn log(&self, record: &log::Record<'_>) {
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match (record.file(), record.line()) {
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(Some(file), Some(line)) => {
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eprintln_locked!(
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"{}|{}|{}:{}: {}",
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record.level(),
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record.target(),
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file,
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line,
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record.args()
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);
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}
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(Some(file), None) => {
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eprintln_locked!(
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"{}|{}|{}: {}",
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record.level(),
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record.target(),
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file,
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record.args()
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);
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}
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_ => {
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eprintln_locked!(
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"{}|{}: {}",
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record.level(),
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record.target(),
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record.args()
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);
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}
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}
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}
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fn flush(&self) {
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// We use eprintln_locked! which is flushed on every call.
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}
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}
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