mirror of
https://gerrit.wikimedia.org/r/mediawiki/skins/MinervaNeue
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67 lines
2.1 KiB
JavaScript
67 lines
2.1 KiB
JavaScript
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/**
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* ResourceLoader module bandwidth test
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*
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* Fetches a series of ResourceLoader modules from a ResourceLoader URI and
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* pipes their content into a bundlesize command which validates their bytesize
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* against a configuration in in ../bundlesize.config.json.
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*/
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const
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MW_SERVER = process.env.MW_SERVER || 'http://127.0.0.1:8080',
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MW_SCRIPT_PATH = process.env.MW_SCRIPT_PATH || '/w',
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childProcess = require( 'child_process' ),
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fetch = require( 'node-fetch' ).default,
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bundles = require( '../bundlesize.config.json' ),
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// eslint-disable-next-line es/no-object-assign
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bundlesizeEnv = Object.assign( {}, process.env );
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/**
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* Create a ResourceLoader URL based on $MW_SERVER and $MW_SCRIPT_PATH
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*
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* @param {string} rlModuleName
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* @return {string}
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*/
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function createRLUrl( rlModuleName ) {
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return `${MW_SERVER}${MW_SCRIPT_PATH}/load.php?lang=en&modules=${rlModuleName}`;
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}
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/**
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* Remove the "CI" environment variable so that it is not passed to
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* the bundlesize command, resulting in an unnecessary "Github token not found"
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* warning. Note: assigning to null or undefined doesn't work because Node casts
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* environment variable values to strings.
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*/
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delete bundlesizeEnv.CI;
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/**
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* Fetch each ResourceLoader module defined in the bundlesize config
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* and pipe it's content into a bundlesize command.
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* The bundlesize stdout and stderr are passed to the parent process,
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* so any error in bundlesize will trigger a non-zero exit status for this script.
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*/
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bundles.forEach( async ( rlModule ) => {
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const rlModuleResponse = await fetch( createRLUrl( rlModule.resourceModule ) ),
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rlModuleContent = await rlModuleResponse.text();
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// Execute the bundlesize command.
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const cmd = childProcess.spawn(
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'node_modules/.bin/bundlesize-pipe',
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[ '--name', rlModule.resourceModule, '--max-size', rlModule.maxSize ],
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{
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// Stdin is writable stream, stdout and stderr are passed to the parent process.
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stdio: [ 'pipe', 'inherit', 'inherit' ],
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env: bundlesizeEnv
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}
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);
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cmd.stdin.write( rlModuleContent );
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cmd.stdin.end();
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cmd.on( 'exit', ( code ) => {
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if ( code !== 0 ) {
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process.exitCode = code || 1; // prevent assigning falsy values.
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}
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} );
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} );
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