initial version

This commit is contained in:
Robin Appelman 2018-04-16 17:05:10 +02:00
commit cd144a3756
5 changed files with 428 additions and 0 deletions

3
.gitignore vendored Normal file
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/target
**/*.rs.bk

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8
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[package]
name = "notify-redis"
version = "0.1.0"
authors = ["Robin Appelman <robin@icewind.nl>"]
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redis = "0.8.0"

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notify-redis.iml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module type="RUST_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/examples" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/tests" isTestSource="true" />
<sourceFolder url="file://$MODULE_DIR$/benches" isTestSource="true" />
<excludeFolder url="file://$MODULE_DIR$/target" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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src/main.rs Normal file
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extern crate notify;
extern crate redis;
use notify::{DebouncedEvent, RecommendedWatcher, RecursiveMode, Watcher};
use redis::{Client, Commands, Connection, RedisResult};
use std::env;
use std::result::Result;
use std::sync::mpsc::channel;
use std::time::Duration;
#[derive(Debug)]
enum WatchError {
Notify(notify::Error),
Redis(redis::RedisError),
}
impl From<notify::Error> for WatchError {
fn from(err: notify::Error) -> WatchError {
WatchError::Notify(err)
}
}
impl From<redis::RedisError> for WatchError {
fn from(err: redis::RedisError) -> WatchError {
WatchError::Redis(err)
}
}
fn watch(path: String, redis_connect: String, redis_list: String) -> Result<(), WatchError> {
let (tx, rx) = channel();
let mut watcher: RecommendedWatcher = Watcher::new(tx, Duration::from_secs(2))?;
let client = Client::open(redis_connect.as_ref())?;
let con = client.get_connection()?;
watcher.watch(path, RecursiveMode::Recursive)?;
loop {
match rx.recv() {
Ok(event) => {
println!("{:?}", event);
push_event(event, &con, &redis_list)?;
}
Err(e) => println!("watch error: {:?}", e),
}
}
}
fn push_event(event: DebouncedEvent, con: &Connection, list: &String) -> RedisResult<u8> {
match format_event(event) {
Some(formatted_event) => con.lpush(list, formatted_event),
None => Ok(0)
}
}
fn format_event(event: DebouncedEvent) -> Option<String> {
match event {
DebouncedEvent::Write(path) |
DebouncedEvent::Create(path) |
DebouncedEvent::Chmod(path) => Some(format!("write|{}", path.to_str()?)),
DebouncedEvent::Rename(from, to) => Some(format!("rename|{}|{}", from.to_str()?, to.to_str()?)),
DebouncedEvent::Remove(path) => Some(format!("remove|{}", path.to_str()?)),
_ => None
}
}
fn main() {
let args: Vec<_> = env::args().collect();
if args.len() == 4 {
if let Err(e) = watch(args[1].to_owned(), args[2].to_owned(), args[3].to_owned()) {
println!("error: {:?}", e)
}
} else {
println!("usage: {} <path> <redis_connect> <redis_list>", args[0])
}
}