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https://github.com/outbackdingo/firezone.git
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5a44151bba
On Windows, the network notifier always notifies once at startup. We make the DNS notifier and Linux match this behavior, and we assert it in the unit test. Part of a yak shave towards removing Tauri.
62 lines
2.2 KiB
Rust
62 lines
2.2 KiB
Rust
pub mod file;
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use tracing::subscriber::DefaultGuard;
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use tracing_log::LogTracer;
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use tracing_subscriber::{
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filter::ParseError, fmt, layer::SubscriberExt as _, util::SubscriberInitExt, EnvFilter, Layer,
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Registry,
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};
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/// Registers a global subscriber with stdout logging and `additional_layer`
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pub fn setup_global_subscriber<L>(additional_layer: L)
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where
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L: Layer<Registry> + Send + Sync,
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{
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let directives = std::env::var("RUST_LOG").unwrap_or_default();
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let subscriber = Registry::default()
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.with(additional_layer)
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.with(fmt::layer())
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.with(filter(&directives));
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tracing::subscriber::set_global_default(subscriber).expect("Could not set global default");
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LogTracer::init().unwrap();
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}
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/// Constructs an opinionated [`EnvFilter`] with some crates already silenced.
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pub fn filter(directives: &str) -> EnvFilter {
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try_filter(directives).unwrap()
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}
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/// Constructs an opinionated [`EnvFilter`] with some crates already silenced.
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pub fn try_filter(directives: &str) -> Result<EnvFilter, ParseError> {
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/// A filter directive that silences noisy crates.
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///
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/// For debugging, it is useful to set a catch-all log like `debug`.
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/// This obviously creates a lot of logs from all kinds of crates.
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/// For our usecase, logs from `netlink_proto` and other crates are very likely not what you want to see.
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///
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/// By prepending this directive to the active log filter, a simple directive like `debug` actually produces useful logs.
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/// If necessary, you can still activate logs from these crates by restating them in your directive with a lower filter, i.e. `netlink_proto=debug`.
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const IRRELEVANT_CRATES: &str = "netlink_proto=warn,os_info=warn,rustls=warn";
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EnvFilter::try_new(format!("{IRRELEVANT_CRATES},{directives}"))
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}
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/// Initialises a logger to be used in tests.
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pub fn test(directives: &str) -> DefaultGuard {
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tracing_subscriber::fmt()
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.with_test_writer()
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.with_env_filter(directives)
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.set_default()
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}
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pub fn test_global(directives: &str) {
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tracing::subscriber::set_global_default(
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tracing_subscriber::fmt()
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.with_test_writer()
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.with_env_filter(directives)
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.finish(),
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)
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.ok();
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}
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