diff_folders/
log.rs

1use anyhow::Result;
2use flexi_logger::writers::LogWriter;
3use std::{
4    fs::{self, File, OpenOptions},
5    io::{Error, ErrorKind},
6    sync::{Arc, Mutex},
7};
8
9pub fn init_logger() -> Result<()> {
10    let dir = directories::BaseDirs::new()
11        .unwrap()
12        .home_dir()
13        .join(".cache")
14        .join("diff-folders");
15    if !dir.exists() {
16        fs::create_dir_all(&dir)?;
17    }
18    let logfile = dir.clone().join("diff-folders.log");
19    if !logfile.exists() {
20        File::create(&logfile)?;
21    }
22    let fd = OpenOptions::new()
23        .write(true)
24        .append(true)
25        .open(logfile)
26        .unwrap();
27    let my_writer = FileWriter {
28        file: Arc::new(Mutex::new(fd)),
29    };
30    flexi_logger::Logger::try_with_str("info")
31        .unwrap()
32        .log_to_writer(Box::new(my_writer))
33        .write_mode(flexi_logger::WriteMode::BufferAndFlush)
34        .start()?;
35    Ok(())
36}
37
38struct FileWriter<F> {
39    file: Arc<Mutex<F>>,
40}
41
42impl<F: std::io::Write + Send + Sync> LogWriter for FileWriter<F> {
43    fn write(
44        &self,
45        now: &mut flexi_logger::DeferredNow,
46        record: &flexi_logger::Record,
47    ) -> std::io::Result<()> {
48        let mut file = self
49            .file
50            .lock()
51            .map_err(|e| Error::new(ErrorKind::Other, e.to_string()))?;
52        flexi_logger::detailed_format(&mut *file, now, record)
53    }
54
55    fn flush(&self) -> std::io::Result<()> {
56        let mut file = self
57            .file
58            .lock()
59            .map_err(|e| Error::new(ErrorKind::Other, e.to_string()))?;
60        file.flush()
61    }
62}
diff_folders/log.rs

diff_folders/
log.rs
