80 lines
3.2 KiB
JavaScript
80 lines
3.2 KiB
JavaScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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'use strict';
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// Imports
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const fs = require('fs');
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const path = require('path');
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// Get branch and project name from command line arguments.
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const [, , limitFile, project, branch, commit] = process.argv;
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// Load sizes.
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const currentSizes = JSON.parse(fs.readFileSync('/tmp/current.log', 'utf8'));
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const allLimitSizes = JSON.parse(fs.readFileSync(limitFile, 'utf8'));
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const limitSizes = allLimitSizes[project][branch] || allLimitSizes[project]['master'];
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// Check current sizes against limits.
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let failed = false;
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const successMessages = [];
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const failureMessages = [];
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for (const compressionType in limitSizes) {
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if (typeof limitSizes[compressionType] === 'object') {
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const limitPerFile = limitSizes[compressionType];
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for (const filename in limitPerFile) {
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const expectedSize = limitPerFile[filename];
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const actualSize = currentSizes[`${compressionType}/${filename}`];
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if (actualSize === undefined) {
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failed = true;
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// An expected compression type/file combination is missing. Maybe the file was renamed or
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// removed. Report it as an error, so the user updates the corresponding limit file.
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console.error(
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`ERROR: Commit ${commit} ${compressionType} ${filename} measurement is missing. ` +
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'Maybe the file was renamed or removed.');
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} else {
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const absoluteSizeDiff = Math.abs(actualSize - expectedSize);
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// If size diff is larger than 1% or 500 bytes...
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if (absoluteSizeDiff > 500 || absoluteSizeDiff > expectedSize / 100) {
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failed = true;
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// We must also catch when the size is significantly lower than the payload limit, so
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// we are forced to update the expected payload number when the payload size reduces.
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// Otherwise, we won't be able to catch future regressions that happen to be below
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// the artificially inflated limit.
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const operator = actualSize > expectedSize ? 'exceeded' : 'fell below';
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failureMessages.push(
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`FAIL: Commit ${commit} ${compressionType} ${filename} ${
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operator} expected size by 500 bytes or >1% ` +
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`(expected: ${expectedSize}, actual: ${actualSize}).`);
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} else {
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successMessages.push(
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`SUCCESS: Commit ${commit} ${compressionType} ${
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filename} did NOT cross size threshold of 500 bytes or >1% ` +
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`(expected: ${expectedSize}, actual: ${actualSize}).`);
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}
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}
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}
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}
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}
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// Group failure messages separately from success messages so they are easier to find.
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successMessages.concat(failureMessages).forEach(message => console.error(message));
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if (failed) {
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const projectRoot = path.resolve(__dirname, '../..');
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const limitFileRelPath = path.relative(projectRoot, limitFile);
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console.info(
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`If this is a desired change, please update the size limits in file '${limitFileRelPath}'.`);
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process.exit(1);
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} else {
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console.info(`Payload size check passed. All diffs are less than 1% or 500 bytes.`);
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}
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