aravindavk / logwatcher

Log Watcher Library

Log Watcher

A Rust library to watch the log files.

Note: Tested only in Linux

Features:

1. Automatically reloads log file when log rotated
2. Calls callback function when new line to parse

Usage

First, add the following to your Cargo.toml

[dependencies]
logwatcher = "0.1"

Add to your code,

extern crate logwatcher;
use logwatcher::LogWatcher;

Register the logwatcher, pass a closure and watch it!

let mut log_watcher = LogWatcher::register("/var/log/check.log".to_string()).unwrap();

log_watcher.watch(&mut move |line: String| {
    println!("Line {}", line);
    LogWatcherAction::None
});

logwatcher's Issues

update crates.io version

Could you please update the version on crates.io?
The only version available there is the initial commit, missing the closure changes

Take a FnMut closure

Fn prevents the closure from mutating captured variables. Could we change it to FnMut to make the API easier to use in cases where we want to do this. This would be a braking change.

Could you make it works on Windows?

Thanks a lot.

I found your crate works on MacOS without any issue.

can you give 'register' function add a 'start_pos' parameter?

pub fn register(filename: String, start_pos: u64) -> Result<LogWatcher, io::Error> {}

Printing from library

logwatcher/src/lib.rs

Line 68 in 3ff858c

println!("reloading log file");

I think a print in a library should generally be avoided. If you think you're user might care about a log rotation, you should have it be an event that your watcher provides.

eg

enum Event {
    Line(String),
    LogRotation,
}