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mod watcher;
use ignore::overrides::OverrideBuilder;
use ignore::WalkBuilder;
pub use watcher::wait_for_changes;
use crate::settings::toml::{Target, TargetType};
use crate::terminal::message::{Message, StdOut};
use crate::wranglerjs;
use crate::{build::command, build_target};
use crate::{commands, install};
use anyhow::Result;
use notify::{self, RecursiveMode, Watcher};
use std::sync::mpsc::{self, SendError, Sender};
use std::thread;
use std::time::Duration;
pub const COOLDOWN_PERIOD: Duration = Duration::from_millis(2000);
const JAVASCRIPT_PATH: &str = "./";
const RUST_PATH: &str = "./";
const RUST_IGNORE: &[&str] = &["pkg", "target", "worker/generated"];
pub fn watch_and_build(
target: &Target,
tx: Option<mpsc::Sender<()>>,
refresh_session_sender: Option<Sender<Option<()>>>,
) -> Result<()> {
let target_type = &target.target_type;
let build = target.build.clone();
match target_type {
TargetType::JavaScript => {
let target = target.clone();
thread::spawn::<_, Result<()>>(move || {
let (watcher_tx, watcher_rx) = mpsc::channel();
let mut watcher = notify::watcher(watcher_tx, Duration::from_secs(1))?;
match build {
None => {
watcher.watch(JAVASCRIPT_PATH, RecursiveMode::Recursive)?;
StdOut::info(&format!("watching {:?}", &JAVASCRIPT_PATH));
loop {
match wait_for_changes(
&watcher_rx,
refresh_session_sender.clone(),
COOLDOWN_PERIOD,
) {
Ok(_path) => {
if let Some(tx) = tx.clone() {
tx.send(())?;
}
}
Err(e) => {
if !e.is::<SendError<Option<()>>>() {
log::debug!("{:?}", e);
StdOut::user_error("Something went wrong while watching.")
}
}
}
}
}
Some(config) => {
config.verify_watch_dir()?;
watcher.watch(config.watch_dir, notify::RecursiveMode::Recursive)?;
loop {
match wait_for_changes(
&watcher_rx,
refresh_session_sender.clone(),
COOLDOWN_PERIOD,
) {
Ok(_path) => match build_target(&target) {
Ok(output) => {
StdOut::success(&output);
if let Some(tx) = tx.clone() {
tx.send(())?;
}
}
Err(e) => StdOut::user_error(&e.to_string()),
},
Err(e) => {
if !e.is::<SendError<Option<()>>>() {
log::debug!("{:?}", e);
StdOut::user_error("Something went wrong while watching.")
}
}
}
}
}
}
});
}
TargetType::Rust => {
let binary_path = install::install_wasm_pack()?;
let args = ["build", "--target", "no-modules"];
thread::spawn::<_, Result<()>>(move || {
let (watcher_tx, watcher_rx) = mpsc::channel();
let mut watcher = notify::watcher(watcher_tx, Duration::from_secs(1)).unwrap();
let mut ignored_files = OverrideBuilder::new("./");
for ignore in RUST_IGNORE {
ignored_files.add(&format!("!{}", ignore)).unwrap();
}
let ignored_file_override = ignored_files.build().unwrap();
let walker = WalkBuilder::new("./")
.overrides(ignored_file_override)
.build();
for entry in walker {
let entry = entry.unwrap();
if entry.path().is_dir() {
continue;
}
watcher
.watch(entry.path(), RecursiveMode::Recursive)
.unwrap();
}
StdOut::info(&format!("watching {:?}", &RUST_PATH));
loop {
match wait_for_changes(
&watcher_rx,
refresh_session_sender.clone(),
COOLDOWN_PERIOD,
) {
Ok(_path) => {
let command = command(&args, &binary_path);
let command_name = format!("{:?}", command);
if commands::run(command, &command_name).is_ok() {
if let Some(tx) = tx.clone() {
tx.send(())?;
}
}
}
Err(e) => {
if !e.is::<SendError<Option<()>>>() {
StdOut::user_error("Something went wrong while watching.")
}
}
}
}
});
}
TargetType::Webpack => {
wranglerjs::run_build_and_watch(target, tx)?;
}
}
Ok(())
}