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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| // All log macros and common types are under `spdlog::prelude` module. | ||
| use spdlog::prelude::*; | ||
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| fn main() { | ||
| // Writes a log at "info" level with the info level, and this log will be | ||
| // processed by the global default logger - It will be output to `stdout`. | ||
| info!("program started"); | ||
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| let file = "config.json"; | ||
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| // They will be output to `stderr`. | ||
| error!("failed to open file: {}", file); | ||
| warn!("undetermined locale, defaults to `en_US.UTF-8`"); | ||
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| // Level "trace" and "debug" will be ignored by default, you can modify the | ||
| // level filter of the global default logger to enable all levels. | ||
| spdlog::default_logger().set_level_filter(LevelFilter::All); | ||
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| trace!("position x: {}, y: {}", 11.4, -5.14); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| use std::{env, sync::Arc}; | ||
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| use spdlog::{ | ||
| prelude::*, | ||
| sink::{FileSink, RotatingFileSink, RotationPolicy}, | ||
| }; | ||
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| fn main() -> Result<(), Box<dyn std::error::Error>> { | ||
| configure_file_logger()?; | ||
| configure_rotating_file_logger()?; | ||
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| Ok(()) | ||
| } | ||
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| fn configure_file_logger() -> Result<(), Box<dyn std::error::Error>> { | ||
| let path = env::current_exe()?.with_file_name("file.log"); | ||
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| let file_sink = Arc::new(FileSink::builder().path(path).build()?); | ||
| let new_logger = Arc::new(Logger::builder().sink(file_sink).build()?); | ||
| spdlog::set_default_logger(new_logger); | ||
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| info!("this log will be written to the file `all.log`"); | ||
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| Ok(()) | ||
| } | ||
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| fn configure_rotating_file_logger() -> Result<(), Box<dyn std::error::Error>> { | ||
| let path = env::current_exe()?.with_file_name("rotating.log"); | ||
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| let file_sink = Arc::new( | ||
| RotatingFileSink::builder() | ||
| .base_path(path) | ||
| .rotation_policy(RotationPolicy::Daily { hour: 0, minute: 0 }) | ||
| .build()?, | ||
| ); | ||
| let new_logger = Arc::new(Logger::builder().sink(file_sink).build()?); | ||
| spdlog::set_default_logger(new_logger); | ||
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| info!("this log will be written to the file `rotating.log`, and the file will be rotated daily at 00:00"); | ||
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| Ok(()) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| use std::{env, sync::Arc, time::Duration}; | ||
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| use spdlog::{ | ||
| prelude::*, | ||
| sink::{FileSink, Sink}, | ||
| }; | ||
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| fn main() -> Result<(), Box<dyn std::error::Error>> { | ||
| // `spdlog-rs` has a global default logger and logs will be processed by it | ||
| // by default, You can configure it. | ||
| let default_logger = spdlog::default_logger(); | ||
| default_logger.set_level_filter(LevelFilter::All); | ||
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| // Or completely replace it with a new one. | ||
| let path = env::current_exe()?.with_file_name("all.log"); | ||
| let file_sink = Arc::new(FileSink::builder().path(path).build()?); | ||
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| let new_logger = Arc::new( | ||
| Logger::builder() | ||
| .level_filter(LevelFilter::All) | ||
| .flush_level_filter(LevelFilter::MoreSevereEqual(Level::Warn)) | ||
| .sink(file_sink.clone()) | ||
| .build()?, | ||
| ); | ||
| new_logger.set_flush_period(Some(Duration::from_secs(3))); | ||
| spdlog::set_default_logger(new_logger); | ||
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| info!("this log will be written to the file `all.log`"); | ||
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| // In addition to having the global default logger, more loggers are allowed to | ||
| // be configured, stored and used independently. | ||
| let db = AppDatabase::new(file_sink)?; | ||
| db.write_i32(114514); | ||
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| Ok(()) | ||
| } | ||
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| struct AppDatabase { | ||
| logger: Logger, | ||
| } | ||
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| impl AppDatabase { | ||
| fn new(all_log_sink: Arc<dyn Sink>) -> Result<Self, Box<dyn std::error::Error>> { | ||
| let path = env::current_exe()?.with_file_name("db.log"); | ||
| let db_file_sink = Arc::new(FileSink::builder().path(path).build()?); | ||
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| let logger = Logger::builder() | ||
| .name("database") | ||
| .level_filter(LevelFilter::All) | ||
| .flush_level_filter(LevelFilter::MoreSevereEqual(Level::Warn)) | ||
| .sinks([all_log_sink, db_file_sink]) | ||
| .build()?; | ||
| Ok(Self { logger }) | ||
| } | ||
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| fn write_i32(&self, value: i32) { | ||
| // This log will be written to both files `all.log` and `db.log`. | ||
| trace!(logger: self.logger, "writing value {} to the database", value); | ||
| } | ||
| } |
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