lighthouse-eco-index-aggregator
v0.5.4
Published
Tool for aggregating lighthouse and eco-index results
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Readme
Lighthouse EcoIndex Aggregator
This generator tool can be used if you need to generate a global reports for all pages audited by lighthouse and ecoindex tools. After the generation, we will have access to a global HTML report. As an example, you can use this tool at the end of a Cypress test suite in order to generate the final report of your tests.
At the end of the readme, we will explain how to generate lighthouse and ecoindex reports, used by this aggregator.
Package
npm install -D lighthouse-eco-index-aggregator
Options
| Nom | Type | Description | | ------------- | -------- | ------------------------------------------------------------------------------------------------------------ | | config | string | Option is used for define configuration file (JSON or JavaScript) | | fail | number | Option is used for define limit fail | | h | boolean | Option is used for see informations cli | | lang | string | Option is used for translated report values possible used is "fr-FR" or "en-GB" default is "en-GB" | | m | boolean | Option is used for minify file output it's true by default | | outputPath | string | Option is used in order to define the target folder when the report will be generated | | pass | number | Option is used for define limit pass | | reports | string[] | Option is used for defined the format of the generated report. Possible values "html", "sonar" or a funciton | | sonarFilePath | string | Option is used when generating the sonar report, in order to make the issue visible on SonarCloud | | srcEcoIndex | string | Option is used for defined ecoIndex reports path | | srcLighthouse | string | Option is used for defined lighthouse reports path | | v | boolean | Option is used for verbose task |
Example usage
npx lighthouse-eco-index-aggregator --srcLighthouse="./reports/lighthouse" --srcEcoIndex="./reports/ecoindex" --reports="html" --outputPath="report_final"
You can also used this module programmatically
const aggregate = require("lighthouse-eco-index-aggregator/src/main");
console.log(
aggregate({
srcLighthouse: "./reports/lighthouse",
srcEcoIndex: "./reports/ecoindex",
outputPath: "report_final",
})
);
How to generate Lighthouse and EcoIndex reports
This aggregator tool can also be used directly inside a cypress test. For example, we can generate the global report once the Cypress tests suite has finished.
// cypress.config.js
const aggregate = require("lighthouse-eco-index-aggregator/src/main");
const path = require("path");
const lighthouseOutputPathDir = path.join(__dirname, "reports/lighthouse");
const ecoIndexOutputPathDir = path.join(__dirname, "reports/ecoindex");
const globalOutputPathDir = path.join(__dirname, "report_final");
module.exports = defineConfig({
e2e: {
setupNodeEvents(on, config) {
on("after:run", async () => {
await aggregate({
reports: ["html"],
verbose: true,
srcLighthouse: lighthouseOutputPathDir,
srcEcoIndex: ecoIndexOutputPathDir,
outputPath: globalOutputPathDir,
});
});
},
},
});
But in order to generate this global report, we need the lighthouse and ecoindex reports available in the lighthouse
and ecoindex
subfolders. In order to do so, we will use two extra NPM packages :
- Cypress Audit in order to run Lighthouse
- Eco Index Audit in order to run EcoIndex.
You will find a sample Cypress tests suite in the cypress-demo
folder. Please have a look to the demo.cy.js
and cypress.config.js
.
In order to run the Cypress tests suite, you have to execute the following commands :
cd cypress-demo
npm i
npx cypress run -b chrome
Sonar report
This tool can also generate a external sonar report you can add to the Sonar configuration (via the sonar.externalIssuesReportPaths
option).
You need to define the path to one of your file managed by Sonar, in order to make the rule visible in Sonar Cloud and use the sonar
reporter.
node ./src/cli.js --srcLighthouse="./reports/lighthouse" --srcEcoIndex="./reports/ecoindex" --reports="sonar" --sonarFilePath="./package.json"
Generate any type of report
In fact, the output
option can receive a javaScript function. Thanks to this possibility, you can send the result anywhere (Elastic, DataDog, ...)
// cypress.config.js
const aggregate = require("lighthouse-eco-index-aggregator/src/main");
const path = require("path");
const lighthouseOutputPathDir = path.join(__dirname, "reports/lighthouse");
const ecoIndexOutputPathDir = path.join(__dirname, "reports/ecoindex");
const globalOutputPathDir = path.join(__dirname, "report_final");
module.exports = defineConfig({
e2e: {
setupNodeEvents(on, config) {
on("after:run", async () => {
await aggregate({
reports: [
"html",
(options, results) => {
const { Client } = require("@elastic/elasticsearch");
const client = new Client();
return client.index({
index: "lighthouse-ecoindex",
document: {
...results,
"@timestamp": new Date(),
},
});
},
],
verbose: true,
srcLighthouse: lighthouseOutputPathDir,
srcEcoIndex: ecoIndexOutputPathDir,
outputPath: globalOutputPathDir,
});
});
},
},
});