82 lines
1.9 KiB
TypeScript
82 lines
1.9 KiB
TypeScript
/**
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* External dependencies
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*/
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const bold = require( 'chalk' );
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const fs = require( 'fs' );
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const path = require( 'path' );
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/**
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* Internal dependencies
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*/
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const { readJSONFile, logAtIndent } = require( './utils' );
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const formats = {
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success: bold.green,
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};
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const ARTIFACTS_PATH =
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process.env.WP_ARTIFACTS_PATH || path.join( process.cwd(), 'artifacts' );
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const PERFORMANCE_FILE_SUFFIX = '.performance-results.json';
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const DELTAS_FILE_SUFFIX = '.delta-results.json';
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/**
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* Calculates and prints the deltas for server response time for each test suite.
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*
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* @param {string[]} testSuites Test suites we are aiming.
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* @param {string[]} branches Branches we are aiming.
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*/
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function calculateDelta( testSuites: string[], branches: string[] ): void {
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logAtIndent( 0, 'Checking delta' );
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// Calculate medians from all rounds.
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for ( const testSuite of testSuites ) {
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logAtIndent( 1, 'Test suite:', formats.success( testSuite ) );
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const performanceResultsPath = path.join(
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ARTIFACTS_PATH,
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testSuite + PERFORMANCE_FILE_SUFFIX
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);
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const deltaMetrics = {} as { [ key: string ]: number };
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const performanceResults = readJSONFile(
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performanceResultsPath,
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'utf8'
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);
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const currentBranch = branches[ 0 ];
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const baseBranch = branches[ 1 ];
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const percentage =
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( performanceResults[ currentBranch ].serverResponse /
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performanceResults[ baseBranch ].serverResponse -
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1 ) *
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100;
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deltaMetrics.serverResponse = percentage;
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logAtIndent(
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2,
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'Server response delta:',
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formats.success( percentage.toFixed( 2 ) + '%' )
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);
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const deltaResultsPath = path.join(
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ARTIFACTS_PATH,
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testSuite + DELTAS_FILE_SUFFIX
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);
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logAtIndent(
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2,
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'Saving curated results to:',
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formats.success( deltaResultsPath )
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);
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fs.writeFileSync(
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deltaResultsPath,
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JSON.stringify( deltaMetrics, null, 2 )
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);
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}
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}
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module.exports = {
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calculateDelta,
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};
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