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tracing-subscriber: correct fmt::init() documentation #2224
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Previously the documentation for `fmt::init()` was misleading. It stated that it was shorthand for `fmt().init()`. This lead to confusion as users would expect the same behavior from both. However `fmt::init()` would, whether you used the env-filter feature or not, rely on RUST_LOG to set the tracing level. `fmt().init()` does not do this and it must be set with a specific configuration via `with_env_filter`. The documentation has been updated to no longer state that it is 1:1 shorthand for the other. The documentation now specifically points out that you must be using the `env-filter` feature and gives a correct example to mimic the `fmt::init()` behavior using `fmt().init()`. fixes: tokio-rs#2217 tokio-rs#1329
hawkw
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Jul 28, 2022
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one minor suggestion here, but other than that, this looks good. Thank you!
hawkw
added a commit
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Oct 6, 2022
# 0.3.16 (October 6, 2022) This release of `tracing-subscriber` fixes a regression introduced in [v0.3.15][subscriber-0.3.15] where `Option::None`'s `Layer` implementation would set the max level hint to `OFF`. In addition, it adds several new APIs, including the `Filter::event_enabled` method for filtering events based on fields values, and the ability to log internal errors that occur when writing a log line. This release also replaces the dependency on the unmaintained [`ansi-term`] crate with the [`nu-ansi-term`] crate, resolving an *informational* security advisory ([RUSTSEC-2021-0139] for [`ansi-term`]'s maintainance status. This increases the minimum supported Rust version (MSRV) to Rust 1.50+, although the crate should still compile for the previous MSRV of Rust 1.49+ when the `ansi` feature is not enabled. ### Fixed - **layer**: `Option::None`'s `Layer` impl always setting the `max_level_hint` to `LevelFilter::OFF` (#2321) - Compilation with `-Z minimal versions` (#2246) - **env-filter**: Clarify that disabled level warnings are emitted by `tracing-subscriber` (#2285) ### Added - **fmt**: Log internal errors to `stderr` if writing a log line fails (#2102) - **fmt**: `FmtLayer::log_internal_errors` and `FmtSubscriber::log_internal_errors` methods for configuring whether internal writer errors are printed to `stderr` (#2102) - **fmt**: `#[must_use]` attributes on builders to warn if a `Subscriber` is configured but not set as the default subscriber (#2239) - **filter**: `Filter::event_enabled` method for filtering an event based on its fields (#2245, #2251) - **filter**: `Targets::default_level` accessor (#2242) ### Changed - **ansi**: Replaced dependency on unmaintained `ansi-term` crate with `nu-ansi-term` ((#2287, fixes informational advisory [RUSTSEC-2021-0139]) - `tracing-core`: updated to [0.1.30][core-0.1.30] - Minimum Supported Rust Version (MSRV) increased to Rust 1.50+ (when the `ansi`) feature flag is enabled (#2287) ### Documented - **fmt**: Correct inaccuracies in `fmt::init` documentation (#2224) - **filter**: Fix incorrect doc link in `filter::Not` combinator (#2249) Thanks to new contributors @cgbur, @DesmondWillowbrook, @RalfJung, and @poliorcetics, as well as returning contributors @CAD97, @connec, @jswrenn, @guswynn, and @bryangarza, for contributing to this release! [nu-ansi-term]: https://github.com/nushell/nu-ansi-term [ansi_term]: https://github.com/ogham/rust-ansi-term [RUSTSEC-2021-0139]: https://rustsec.org/advisories/RUSTSEC-2021-0139.html [core-0.1.30]: https://github.com/tokio-rs/tracing/releases/tag/tracing-core-0.1.30 [subscriber-0.3.15]: https://github.com/tokio-rs/tracing/releases/tag/tracing-subscriber-0.3.15
hawkw
added a commit
that referenced
this pull request
Oct 6, 2022
# 0.3.16 (October 6, 2022) This release of `tracing-subscriber` fixes a regression introduced in [v0.3.15][subscriber-0.3.15] where `Option::None`'s `Layer` implementation would set the max level hint to `OFF`. In addition, it adds several new APIs, including the `Filter::event_enabled` method for filtering events based on fields values, and the ability to log internal errors that occur when writing a log line. This release also replaces the dependency on the unmaintained [`ansi-term`] crate with the [`nu-ansi-term`] crate, resolving an *informational* security advisory ([RUSTSEC-2021-0139] for [`ansi-term`]'s maintainance status. This increases the minimum supported Rust version (MSRV) to Rust 1.50+, although the crate should still compile for the previous MSRV of Rust 1.49+ when the `ansi` feature is not enabled. ### Fixed - **layer**: `Option::None`'s `Layer` impl always setting the `max_level_hint` to `LevelFilter::OFF` (#2321) - Compilation with `-Z minimal versions` (#2246) - **env-filter**: Clarify that disabled level warnings are emitted by `tracing-subscriber` (#2285) ### Added - **fmt**: Log internal errors to `stderr` if writing a log line fails (#2102) - **fmt**: `FmtLayer::log_internal_errors` and `FmtSubscriber::log_internal_errors` methods for configuring whether internal writer errors are printed to `stderr` (#2102) - **fmt**: `#[must_use]` attributes on builders to warn if a `Subscriber` is configured but not set as the default subscriber (#2239) - **filter**: `Filter::event_enabled` method for filtering an event based on its fields (#2245, #2251) - **filter**: `Targets::default_level` accessor (#2242) ### Changed - **ansi**: Replaced dependency on unmaintained `ansi-term` crate with `nu-ansi-term` ((#2287, fixes informational advisory [RUSTSEC-2021-0139]) - `tracing-core`: updated to [0.1.30][core-0.1.30] - Minimum Supported Rust Version (MSRV) increased to Rust 1.50+ (when the `ansi`) feature flag is enabled (#2287) ### Documented - **fmt**: Correct inaccuracies in `fmt::init` documentation (#2224) - **filter**: Fix incorrect doc link in `filter::Not` combinator (#2249) Thanks to new contributors @cgbur, @DesmondWillowbrook, @RalfJung, and @poliorcetics, as well as returning contributors @CAD97, @connec, @jswrenn, @guswynn, and @bryangarza, for contributing to this release! [nu-ansi-term]: https://github.com/nushell/nu-ansi-term [ansi_term]: https://github.com/ogham/rust-ansi-term [RUSTSEC-2021-0139]: https://rustsec.org/advisories/RUSTSEC-2021-0139.html [core-0.1.30]: https://github.com/tokio-rs/tracing/releases/tag/tracing-core-0.1.30 [subscriber-0.3.15]: https://github.com/tokio-rs/tracing/releases/tag/tracing-subscriber-0.3.15
hawkw
added a commit
that referenced
this pull request
Oct 6, 2022
# 0.3.16 (October 6, 2022) This release of `tracing-subscriber` fixes a regression introduced in [v0.3.15][subscriber-0.3.15] where `Option::None`'s `Layer` implementation would set the max level hint to `OFF`. In addition, it adds several new APIs, including the `Filter::event_enabled` method for filtering events based on fields values, and the ability to log internal errors that occur when writing a log line. This release also replaces the dependency on the unmaintained [`ansi-term`] crate with the [`nu-ansi-term`] crate, resolving an *informational* security advisory ([RUSTSEC-2021-0139] for [`ansi-term`]'s maintainance status. This increases the minimum supported Rust version (MSRV) to Rust 1.50+, although the crate should still compile for the previous MSRV of Rust 1.49+ when the `ansi` feature is not enabled. ### Fixed - **layer**: `Option::None`'s `Layer` impl always setting the `max_level_hint` to `LevelFilter::OFF` (#2321) - Compilation with `-Z minimal versions` (#2246) - **env-filter**: Clarify that disabled level warnings are emitted by `tracing-subscriber` (#2285) ### Added - **fmt**: Log internal errors to `stderr` if writing a log line fails (#2102) - **fmt**: `FmtLayer::log_internal_errors` and `FmtSubscriber::log_internal_errors` methods for configuring whether internal writer errors are printed to `stderr` (#2102) - **fmt**: `#[must_use]` attributes on builders to warn if a `Subscriber` is configured but not set as the default subscriber (#2239) - **filter**: `Filter::event_enabled` method for filtering an event based on its fields (#2245, #2251) - **filter**: `Targets::default_level` accessor (#2242) ### Changed - **ansi**: Replaced dependency on unmaintained `ansi-term` crate with `nu-ansi-term` ((#2287, fixes informational advisory [RUSTSEC-2021-0139]) - `tracing-core`: updated to [0.1.30][core-0.1.30] - Minimum Supported Rust Version (MSRV) increased to Rust 1.50+ (when the `ansi`) feature flag is enabled (#2287) ### Documented - **fmt**: Correct inaccuracies in `fmt::init` documentation (#2224) - **filter**: Fix incorrect doc link in `filter::Not` combinator (#2249) Thanks to new contributors @cgbur, @DesmondWillowbrook, @RalfJung, and @poliorcetics, as well as returning contributors @CAD97, @connec, @jswrenn, @guswynn, and @bryangarza, for contributing to this release! [nu-ansi-term]: https://github.com/nushell/nu-ansi-term [ansi_term]: https://github.com/ogham/rust-ansi-term [RUSTSEC-2021-0139]: https://rustsec.org/advisories/RUSTSEC-2021-0139.html [core-0.1.30]: https://github.com/tokio-rs/tracing/releases/tag/tracing-core-0.1.30 [subscriber-0.3.15]: https://github.com/tokio-rs/tracing/releases/tag/tracing-subscriber-0.3.15
kaffarell
pushed a commit
to kaffarell/tracing
that referenced
this pull request
May 22, 2024
## Motivation Previously the documentation for `fmt::init()` was misleading. It stated that it was shorthand for `fmt().init()`. This lead to confusion as users would expect the same behavior from both. However `fmt::init()` would, whether you used the env-filter feature or not, rely on RUST_LOG to set the tracing level. `fmt().init()` does not do this and it must be set with a specific configuration via `with_env_filter`. ## Solution The documentation has been updated to no longer state that it is 1:1 shorthand for the other. The documentation now specifically points out that you must be using the `env-filter` feature and gives a correct example to mimic the `fmt::init()` behavior using `fmt().init()`. Fixes tokio-rs#2217 Fixes tokio-rs#1329 Co-authored-by: Eliza Weisman <[email protected]>
kaffarell
pushed a commit
to kaffarell/tracing
that referenced
this pull request
May 22, 2024
# 0.3.16 (October 6, 2022) This release of `tracing-subscriber` fixes a regression introduced in [v0.3.15][subscriber-0.3.15] where `Option::None`'s `Layer` implementation would set the max level hint to `OFF`. In addition, it adds several new APIs, including the `Filter::event_enabled` method for filtering events based on fields values, and the ability to log internal errors that occur when writing a log line. This release also replaces the dependency on the unmaintained [`ansi-term`] crate with the [`nu-ansi-term`] crate, resolving an *informational* security advisory ([RUSTSEC-2021-0139] for [`ansi-term`]'s maintainance status. This increases the minimum supported Rust version (MSRV) to Rust 1.50+, although the crate should still compile for the previous MSRV of Rust 1.49+ when the `ansi` feature is not enabled. ### Fixed - **layer**: `Option::None`'s `Layer` impl always setting the `max_level_hint` to `LevelFilter::OFF` (tokio-rs#2321) - Compilation with `-Z minimal versions` (tokio-rs#2246) - **env-filter**: Clarify that disabled level warnings are emitted by `tracing-subscriber` (tokio-rs#2285) ### Added - **fmt**: Log internal errors to `stderr` if writing a log line fails (tokio-rs#2102) - **fmt**: `FmtLayer::log_internal_errors` and `FmtSubscriber::log_internal_errors` methods for configuring whether internal writer errors are printed to `stderr` (tokio-rs#2102) - **fmt**: `#[must_use]` attributes on builders to warn if a `Subscriber` is configured but not set as the default subscriber (tokio-rs#2239) - **filter**: `Filter::event_enabled` method for filtering an event based on its fields (tokio-rs#2245, tokio-rs#2251) - **filter**: `Targets::default_level` accessor (tokio-rs#2242) ### Changed - **ansi**: Replaced dependency on unmaintained `ansi-term` crate with `nu-ansi-term` ((tokio-rs#2287, fixes informational advisory [RUSTSEC-2021-0139]) - `tracing-core`: updated to [0.1.30][core-0.1.30] - Minimum Supported Rust Version (MSRV) increased to Rust 1.50+ (when the `ansi`) feature flag is enabled (tokio-rs#2287) ### Documented - **fmt**: Correct inaccuracies in `fmt::init` documentation (tokio-rs#2224) - **filter**: Fix incorrect doc link in `filter::Not` combinator (tokio-rs#2249) Thanks to new contributors @cgbur, @DesmondWillowbrook, @RalfJung, and @poliorcetics, as well as returning contributors @CAD97, @connec, @jswrenn, @guswynn, and @bryangarza, for contributing to this release! [nu-ansi-term]: https://github.com/nushell/nu-ansi-term [ansi_term]: https://github.com/ogham/rust-ansi-term [RUSTSEC-2021-0139]: https://rustsec.org/advisories/RUSTSEC-2021-0139.html [core-0.1.30]: https://github.com/tokio-rs/tracing/releases/tag/tracing-core-0.1.30 [subscriber-0.3.15]: https://github.com/tokio-rs/tracing/releases/tag/tracing-subscriber-0.3.15
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correct fmt::init() documentation
Previously the documentation for
fmt::init()
was misleading. It stated that it was shorthand forfmt().init()
. This lead to confusion as users would expect the same behavior from both. Howeverfmt::init()
would, whether you used the env-filter feature or not, rely on RUST_LOG to set the tracing level.fmt().init()
does not do this and it must be set with a specific configuration viawith_env_filter
.The documentation has been updated to no longer state that it is 1:1 shorthand for the other. The documentation now specifically points out that you must be using the
env-filter
feature and gives a correct example to mimic thefmt::init()
behavior usingfmt().init()
.fixes: #2217 #1329