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Update benchmark-web-vitals to allow connection to existing browser instance (e.g. on mobile device) #58

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Update benchmark-web-vitals to allow connection to existing browser instance (e.g. on mobile device) #58

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daa19e2
Add -c/--connect option to connect to existing browserWSEndpoint
westonruter Jul 21, 2023
05fe15a
Print error message and error object separately
westonruter Jul 21, 2023
2fc78fe
Install wp-prettier for compat with @wordpress/prettier-config
westonruter Jul 21, 2023
c0435c6
Fix prettier issue
westonruter Jul 21, 2023
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14 changes: 13 additions & 1 deletion cli/commands/benchmark-web-vitals.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -63,8 +63,20 @@ export const options = [
description:
'Whether to show more granular percentiles instead of only the median',
},
{
argname: '-c, --connect <browserWSEndpoint>',
description: 'Connect to an existing browser instance',
},
];

async function getBrowser( opt ) {
return opt.connect
? puppeteer.connect( {
browserWSEndpoint: opt.connect,
} )
: puppeteer.launch();
}

export async function handler( opt ) {
if ( ! isValidTableFormat( opt.output ) ) {
log(
Expand All @@ -78,7 +90,7 @@ export async function handler( opt ) {
const { number: amount } = opt;
const results = [];

const browser = await puppeteer.launch();
const browser = await getBrowser( opt );

for await ( const url of getURLs( opt ) ) {
const { completeRequests, metrics } = await benchmarkURL( browser, {
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3 changes: 2 additions & 1 deletion cli/run.mjs
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Expand Up @@ -61,7 +61,8 @@ const catchException = ( handler ) => {
try {
await handler( ...args );
} catch ( error ) {
log( formats.error( error ) );
log( formats.error( `Error: ${ error.message }` ) );
console.error( error ); // eslint-disable-line no-console
process.exitCode = 1;
}
};
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14 changes: 11 additions & 3 deletions package-lock.json
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1 change: 1 addition & 0 deletions package.json
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Expand Up @@ -10,6 +10,7 @@
"csv-stringify": "^6.2.0",
"lodash-es": "4.17.21",
"node-fetch": "^3.3.0",
"prettier": "npm:[email protected]",
"puppeteer": "^19",
"table": "^6.8.0"
},
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