Upgrade android_logger to 0.13.3

This project was upgraded with external_updater.
Usage: tools/external_updater/updater.sh update external/rust/crates/android_logger
For more info, check https://cs.android.com/android/platform/superproject/+/main:tools/external_updater/README.md

Test: TreeHugger
Fixes: 322718401
Change-Id: Ie99a356dd5287528c6eb6be7139a9541ccd3c7fb
11 files changed
tree: 4019cb444e37278d214a01b01267563207edc982
  1. .github/
  2. patches/
  3. src/
  4. tests/
  5. .cargo_vcs_info.json
  6. .gitignore
  7. Android.bp
  8. Cargo.toml
  9. Cargo.toml.orig
  10. cargo_embargo.json
  11. CHANGELOG.md
  12. LICENSE-APACHE
  13. LICENSE-MIT
  14. METADATA
  15. MODULE_LICENSE_APACHE2
  16. OWNERS
  17. README.md
  18. TEST_MAPPING
README.md

Send Rust logs to Logcat

Version CI status

This library is a drop-in replacement for env_logger. Instead, it outputs messages to android's logcat.

This only works on Android and requires linking to log which is only available under android. With Cargo, it is possible to conditionally require this library:

[target.'cfg(target_os = "android")'.dependencies]
android_logger = "0.13"

Example of initialization on activity creation, with log configuration:

#[macro_use] extern crate log;
extern crate android_logger;

use log::LevelFilter;
use android_logger::{Config,FilterBuilder};

fn native_activity_create() {
    android_logger::init_once(
        Config::default()
            .with_max_level(LevelFilter::Trace) // limit log level
            .with_tag("mytag") // logs will show under mytag tag
            .with_filter( // configure messages for specific crate
                FilterBuilder::new()
                    .parse("debug,hello::crate=error")
                    .build())
    );

    trace!("this is a verbose {}", "message");
    error!("this is printed by default");
}

To allow all logs, use the default configuration with min level Trace:

#[macro_use] extern crate log;
extern crate android_logger;

use log::LevelFilter;
use android_logger::Config;

fn native_activity_create() {
    android_logger::init_once(
        Config::default().with_max_level(LevelFilter::Trace),
    );
}

There is a caveat that this library can only be initialized once (hence the init_once function name). However, Android native activity can be re-created every time the screen is rotated, resulting in multiple initialization calls. Therefore this library will only log a warning for subsequent init_once calls.

This library ensures that logged messages do not overflow Android log message limits by efficiently splitting messages into chunks.

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.