Filecoin使用的日志库

此 crate 用于确保所有 Filecoin 相关 crate 以相同格式记录日志。

默认情况下，fil_logger 不记录任何内容。您可以通过设置 RUST_LOG 环境变量到另一个级别来更改此设置。这将显示 stderr 上的日志输出。示例

$ RUST_LOG=info cargo run --example simple
    Finished dev [unoptimized + debuginfo] target(s) in 0.02s
     Running `target/debug/examples/simple`
2019-11-11T20:26:09.448 INFO simple > logging on into level
2019-11-11T20:26:09.448 WARN simple > logging on warn level
2019-11-11T20:26:09.448 ERROR simple > logging on error level

也可以将日志输出为 JSON。只需将 GOLOG_LOG_FMT 环境变量设置为 json 即可。它更详细，还包含日志调用的行文件和行号

$ GOLOG_LOG_FMT=json RUST_LOG=info cargo run --example simple
    Finished dev [unoptimized + debuginfo] target(s) in 0.03s
     Running `target/debug/examples/simple`
{"level":"info","ts":"2019-11-11T20:59:31.168+0100","logger":"simple","caller":"examples/simple.rs:30","msg":"logging on into level"}
{"level":"warn","ts":"2019-11-11T20:59:31.168+0100","logger":"simple","caller":"examples/simple.rs:31","msg":"logging on warn level"}
{"level":"error","ts":"2019-11-11T20:59:31.168+0100","logger":"simple","caller":"examples/simple.rs:32","msg":"logging on error level"}

示例

use fil_logger;
use log::{debug, error, info, trace, warn};

fn main() {
    fil_logger::init();

    trace!("logging on trace level");
    debug!("logging on debug level");
    info!("logging on into level");
    warn!("logging on warn level");
    error!("logging on error level");
}

许可证

Filecoin 项目根据 Apache 2.0 和 MIT 条款双许可

• Apache 许可证 2.0 版本，(LICENSE-APACHE 或 http://apache.ac.cn/licenses/LICENSE-2.0)
• MIT 许可证 (LICENSE-MIT 或 http://opensource.org/licenses/MIT)