109 lines
2.7 KiB
Rust
109 lines
2.7 KiB
Rust
#![deny(rust_2018_idioms)]
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#![allow(clippy::missing_const_for_fn, clippy::future_not_send)]
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use std::{env::var, fs::File, sync::Mutex};
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use miette::{IntoDiagnostic, Result};
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use tracing::{debug, info, warn};
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use watchexec::{
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event::{Event, Priority},
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Watchexec,
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};
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mod args;
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mod config;
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mod filterer;
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pub async fn run() -> Result<()> {
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let mut log_on = false;
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#[cfg(feature = "dev-console")]
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match console_subscriber::try_init() {
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Ok(_) => {
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warn!("dev-console enabled");
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log_on = true;
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}
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Err(e) => {
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eprintln!("Failed to initialise tokio console, falling back to normal logging\n{e}")
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}
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}
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if !log_on && var("RUST_LOG").is_ok() {
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match tracing_subscriber::fmt::try_init() {
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Ok(_) => {
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warn!(RUST_LOG=%var("RUST_LOG").unwrap(), "logging configured from RUST_LOG");
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log_on = true;
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}
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Err(e) => eprintln!("Failed to initialise logging with RUST_LOG, falling back\n{e}"),
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}
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}
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let tagged_filterer = var("WATCHEXEC_FILTERER")
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.map(|v| v == "tagged")
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.unwrap_or(false);
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let args = args::get_args(tagged_filterer)?;
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let verbosity = args.occurrences_of("verbose");
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if log_on {
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warn!("ignoring logging options from args");
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} else if verbosity > 0 {
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let log_file = if let Some(file) = args.value_of_os("log-file") {
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// TODO: use tracing-appender instead
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Some(File::create(file).into_diagnostic()?)
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} else {
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None
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};
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let mut builder = tracing_subscriber::fmt().with_env_filter(match verbosity {
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0 => unreachable!("checked by if earlier"),
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1 => "warn",
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2 => "info",
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3 => "debug",
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_ => "trace",
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});
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if verbosity > 2 {
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use tracing_subscriber::fmt::format::FmtSpan;
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builder = builder.with_span_events(FmtSpan::NEW | FmtSpan::CLOSE);
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}
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match if let Some(writer) = log_file {
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builder.json().with_writer(Mutex::new(writer)).try_init()
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} else if verbosity > 3 {
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builder.pretty().try_init()
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} else {
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builder.try_init()
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} {
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Ok(_) => info!("logging initialised"),
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Err(e) => eprintln!("Failed to initialise logging, continuing with none\n{e}"),
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}
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}
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info!(version=%env!("CARGO_PKG_VERSION"), "constructing Watchexec from CLI");
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debug!(?args, "arguments");
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let init = config::init(&args);
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let mut runtime = config::runtime(&args)?;
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runtime.filterer(if tagged_filterer {
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eprintln!("!!! EXPERIMENTAL: using tagged filterer !!!");
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filterer::tagged(&args).await?
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} else {
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filterer::globset(&args).await?
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});
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info!("initialising Watchexec runtime");
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let wx = Watchexec::new(init, runtime)?;
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if !args.is_present("postpone") {
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debug!("kicking off with empty event");
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wx.send_event(Event::default(), Priority::Urgent).await?;
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}
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info!("running main loop");
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wx.main().await.into_diagnostic()??;
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info!("done with main loop");
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Ok(())
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}
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