02_file/
02-file.rs

1use std::{env, time::Duration};
2
3use spdlog::{
4    prelude::*,
5    sink::{FileSink, RotatingFileSink, RotationPolicy},
6};
7
8fn main() -> Result<(), Box<dyn std::error::Error>> {
9    configure_file_logger()?;
10    configure_rotating_daily_file_logger()?;
11    configure_rotating_size_file_logger()?;
12    configure_rotating_hourly_file_logger()?;
13    configure_rotating_period_file_logger()?;
14
15    Ok(())
16}
17
18fn configure_file_logger() -> Result<(), Box<dyn std::error::Error>> {
19    let path = env::current_exe()?.with_file_name("file.log");
20
21    let file_sink = FileSink::builder().path(path).build_arc()?;
22    let new_logger = Logger::builder().sink(file_sink).build_arc()?;
23    spdlog::set_default_logger(new_logger);
24
25    info!("this log will be written to the file `all.log`");
26
27    Ok(())
28}
29
30fn configure_rotating_daily_file_logger() -> Result<(), Box<dyn std::error::Error>> {
31    let path = env::current_exe()?.with_file_name("rotating_daily.log");
32
33    let file_sink = RotatingFileSink::builder()
34        .base_path(path)
35        .rotation_policy(RotationPolicy::Daily { hour: 0, minute: 0 })
36        .build_arc()?;
37    let new_logger = Logger::builder().sink(file_sink).build_arc()?;
38    spdlog::set_default_logger(new_logger);
39
40    info!("this log will be written to the file `rotating_daily.log`, and the file will be rotated daily at 00:00");
41
42    Ok(())
43}
44
45fn configure_rotating_size_file_logger() -> Result<(), Box<dyn std::error::Error>> {
46    let path = env::current_exe()?.with_file_name("rotating_size.log");
47
48    let file_sink = RotatingFileSink::builder()
49        .base_path(path)
50        .rotation_policy(RotationPolicy::FileSize(1024))
51        .build_arc()?;
52    let new_logger = Logger::builder().sink(file_sink).build_arc()?;
53    spdlog::set_default_logger(new_logger);
54
55    info!("this log will be written to the file `rotating_size.log`, and the file will be rotated when its size reaches 1024 bytes");
56
57    Ok(())
58}
59
60fn configure_rotating_hourly_file_logger() -> Result<(), Box<dyn std::error::Error>> {
61    let path = env::current_exe()?.with_file_name("rotating_hourly.log");
62
63    let file_sink = RotatingFileSink::builder()
64        .base_path(path)
65        .rotation_policy(RotationPolicy::Hourly)
66        .build_arc()?;
67    let new_logger = Logger::builder().sink(file_sink).build_arc()?;
68    spdlog::set_default_logger(new_logger);
69
70    info!("this log will be written to the file `rotating_hourly.log`, and the file will be rotated every hour");
71
72    Ok(())
73}
74
75fn configure_rotating_period_file_logger() -> Result<(), Box<dyn std::error::Error>> {
76    let path = env::current_exe()?.with_file_name("rotating_period.log");
77
78    let file_sink = RotatingFileSink::builder()
79        .base_path(path)
80        .rotation_policy(RotationPolicy::Period(Duration::from_secs(
81            60 * 90, // 90 minutes
82        )))
83        .build_arc()?;
84    let new_logger = Logger::builder().sink(file_sink).build_arc()?;
85    spdlog::set_default_logger(new_logger);
86
87    info!("this log will be written to the file `rotating_period.log`, and the file will be rotated every 1.5 hours");
88
89    Ok(())
90}
02_file/02-file.rs

02_file/
02-file.rs
