edward/bunbun
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move watch into own function

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This commit is contained in:
Edward Shen 2019-12-26 15:49:42 -05:00
parent 983ad3733e
commit b59cb4f9e3
Signed by: edward
GPG key ID: F350507060ED6C90
2 changed files with 41 additions and 34 deletions
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2
src/cli.yaml
View file

@ -1,5 +1,5 @@
name: "bunbun"
about: "Search/jump multiplexer service"
about: "Search/jump multiplexer service."
args:
- verbose:

73
src/main.rs
View file

@ -101,42 +101,11 @@ async fn main() -> Result<(), BunBunError> {
}
}
let mut watch = Hotwatch::new_with_custom_delay(Duration::from_millis(500))?;
// TODO: keep retry watching in separate thread
// Closures need their own copy of variables for proper lifecycle management
let state_ref = state.clone();
let conf_file_location_clone = conf_file_location.clone();
let watch_result = watch.watch(&conf_file_location, move |e: Event| {
if let Event::Write(_) = e {
trace!("Grabbing writer lock on state...");
let mut state = state.write().unwrap();
trace!("Obtained writer lock on state!");
match read_config(&conf_file_location_clone) {
Ok(conf) => {
state.public_address = conf.public_address;
state.default_route = conf.default_route;
state.routes = cache_routes(&conf.groups);
state.groups = conf.groups;
info!("Successfully updated active state");
}
Err(e) => warn!("Failed to update config file: {}", e),
}
} else {
debug!("Saw event {:#?} but ignored it", e);
}
});
match watch_result {
Ok(_) => info!("Watcher is now watching {}", &conf_file_location),
Err(e) => warn!(
"Couldn't watch {}: {}. Changes to this file won't be seen!",
&conf_file_location, e
),
}
let _watch = start_watch(state.clone(), conf_file_location)?;
HttpServer::new(move || {
App::new()
.data(state_ref.clone())
.data(state.clone())
.wrap(Logger::default())
.service(routes::hop)
.service(routes::list)
@ -263,3 +232,41 @@ fn compile_templates() -> Handlebars {
register_template!["index", "list", "opensearch"];
handlebars
}
fn start_watch(
state: Arc<RwLock<State>>,
config_file_path: String,
) -> Result<Hotwatch, BunBunError> {
let mut watch = Hotwatch::new_with_custom_delay(Duration::from_millis(500))?;
// TODO: keep retry watching in separate thread
// Closures need their own copy of variables for proper lifecycle management
let config_file_path_clone = config_file_path.clone();
let watch_result = watch.watch(&config_file_path, move |e: Event| {
if let Event::Write(_) = e {
trace!("Grabbing writer lock on state...");
let mut state = state.write().unwrap();
trace!("Obtained writer lock on state!");
match read_config(&config_file_path_clone) {
Ok(conf) => {
state.public_address = conf.public_address;
state.default_route = conf.default_route;
state.routes = cache_routes(&conf.groups);
state.groups = conf.groups;
info!("Successfully updated active state");
}
Err(e) => warn!("Failed to update config file: {}", e),
}
} else {
debug!("Saw event {:#?} but ignored it", e);
}
});
match watch_result {
Ok(_) => info!("Watcher is now watching {}", &config_file_path),
Err(e) => warn!(
"Couldn't watch {}: {}. Changes to this file won't be seen!",
&config_file_path, e
),
};
Ok(watch)
}