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https://github.com/tokio-rs/tracing.git
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2520f97964
## Motivation As discussed in #308, there are a large number of crates in this repository, which can be confusing for users and can increase the maintainance burden for maintainers. Also, the `tracing-fmt` and `tracing-subscriber` crates both contain filtering implementations with similar behaviour and APIs, but `tracing-subscriber`'s filter module offers more advanced features (filtering on field values), and is usable with any subscriber implementation. Two separate filter implementations also has the potential to be confusing for users. ## Solution This branch moves most of the code from `tracing-fmt` into a module in `tracing-subscriber`, and changes the `tracing-fmt` builder APIs to use the `Filter` type in `tracing-subscriber`. The `tracing-subscriber/fmt` feature flag can be used to disable the formatting subscriber when it is not used. The `tracing-fmt` crate has been updated to re-export the APIs from `tracing-subscriber`, and marked as deprecated. Once we've published a new version of `tracing-subscriber` with the format APIs, we can publish a final release of `tracing-fmt` that will update the documentation & mark all APIs as deprecated, so that users know to move to the `tracing-subscriber` crate. Refs: #308 Signed-off-by: Eliza Weisman <eliza@buoyant.io>
24 lines
628 B
Rust
24 lines
628 B
Rust
#![deny(rust_2018_idioms)]
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#[path = "fmt/yak_shave.rs"]
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mod yak_shave;
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fn main() {
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use tracing_subscriber::{fmt, Filter};
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let subscriber = fmt::Subscriber::builder()
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.with_filter(Filter::from_default_env())
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.finish();
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tracing::subscriber::with_default(subscriber, || {
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let number_of_yaks = 3;
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tracing::debug!("preparing to shave {} yaks", number_of_yaks);
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let number_shaved = yak_shave::shave_all(number_of_yaks);
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tracing::debug!(
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message = "yak shaving completed.",
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all_yaks_shaved = number_shaved == number_of_yaks,
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);
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});
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}
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