ragit_fs/
log.rs

1use crate::{
2    FileError,
3    WriteMode,
4    copy_file,
5    exists,
6    write_string,
7};
8use chrono::Local;
9use std::sync::OnceLock;
10
11static LOG_FILE_PATH: OnceLock<Option<String>> = OnceLock::new();
12static DUMP_TO_STDOUT: OnceLock<bool> = OnceLock::new();
13static DUMP_TO_STDERR: OnceLock<bool> = OnceLock::new();
14
15pub fn initialize_log(
16    dump_to_file: Option<String>,
17    dump_to_stdout: bool,
18    dump_to_stderr: bool,
19    keep_previous_file: bool,
20) -> Result<(), FileError> {
21    if let Some(path) = &dump_to_file {
22        if !keep_previous_file {
23            if exists(path) {
24                copy_file(path, &format!("{path}-backup"))?;
25            }
26
27            write_string(path, "", WriteMode::Atomic)?;
28        }
29    }
30
31    LOG_FILE_PATH.set(dump_to_file).unwrap();
32    DUMP_TO_STDOUT.set(dump_to_stdout).unwrap();
33    DUMP_TO_STDERR.set(dump_to_stderr).unwrap();
34    Ok(())
35}
36
37fn get_log_file_path() -> Option<String> {
38    LOG_FILE_PATH.get().map(|p| p.clone()).unwrap_or(None)
39}
40
41pub fn write_log(owner: &str, msg: &str) {
42    let dump_to_stdout = DUMP_TO_STDOUT.get().map(|b| *b).unwrap_or(false);
43    let dump_to_stderr = DUMP_TO_STDERR.get().map(|b| *b).unwrap_or(false);
44
45    let path = get_log_file_path();
46
47    if path.is_none() && !dump_to_stdout && !dump_to_stderr {
48        return;
49    }
50
51    let message = format!(
52        "{} | {} | {msg}\n",
53        Local::now().to_rfc2822(),
54        if owner.len() < 32 {
55            format!("{}{owner}", " ".repeat(32 - owner.len()))
56        } else {
57            owner.to_string()
58        },
59    );
60
61    if let Some(path) = path {
62        write_string(
63            &path,
64            &message,
65            WriteMode::AlwaysAppend,
66        ).unwrap();
67    }
68
69    if dump_to_stdout {
70        print!("{message}");
71    }
72
73    if dump_to_stderr {
74        eprint!("{message}");
75    }
76}
ragit_fs/log.rs

ragit_fs/
log.rs
