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fix(watch): throttle / batch watch processing (#13054)

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Pavel Feldman 2022-03-24 16:38:03 -08:00 committed by GitHub
parent ddc2cd4a3e
commit 71dd960fec
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 3 deletions
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14
utils/build/build.js
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@ -80,14 +80,22 @@ function quotePath(path) {
async function runWatch() {
function runOnChanges(paths, mustExist = [], nodeFile) {
nodeFile = filePath(nodeFile);
function callback() {
let timeout;
const callback = () => {
timeout = undefined;
for (const fileMustExist of mustExist) {
if (!fs.existsSync(filePath(fileMustExist)))
return;
}
child_process.spawnSync('node', [nodeFile], { stdio: 'inherit' });
}
chokidar.watch([...paths, ...mustExist, nodeFile].map(filePath)).on('all', callback);
};
// chokidar will report all files as added in a sync loop, throttle those.
const reschedule = () => {
if (timeout)
clearTimeout(timeout);
timeout = setTimeout(callback, 500);
};
chokidar.watch([...paths, ...mustExist, nodeFile].map(filePath)).on('all', reschedule);
callback();
}