anta
v0.4.0
Published
CLI tool and lib to gather app audits via [Lighthouse](https://github.com/GoogleChrome/lighthouse/).
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Readme
CLI tool and lib to gather app audits via Lighthouse. IN BETA.
Based on the code in pwmetrics, this repository removes features such as Upload / Command Line Chart. Thanks in addition to pwmetrics for additional work on the lighthouse basis: stripping out the perf test section separately; supporting flexible customization of audit metrics; and a single command to run multiple times.
此仓库在 pwmetrics 的代码基础上,去掉了“上传”/"命令行图表"等功能。 另外感谢 pwmetrics 在 lighthouse 的基础上额外做出的这些工作:单独剥离出了 perf 测试部分;支持灵活的定制 audit 指标;一个命令可以运行多次。
$ npm i
API
const Metrics = require('anta');
const options = {
flags: {
// runs: '1', // number or runs
// expectations: false // turn on assertation metrics results against provides values
chromeFlags: ['--headless', '--disable-gpu', '--no-sandbox'] // CentOS need it.
}
};
> Note: on real device of Alipay APP, the options may not work!
const pwMetrics = new Metrics('http://example.com/'/*, options */);
pwMetrics.start().then((results) => {
console.log(JSON.stringify(results.runs[0], null, 2));
}).catch((e) => {
console.error(e);
});
Added umi-perf
view
Use like this:
const getHtml = require('anta/recipes/umi-perf/scripts/getHtml.js');
const { getSummaryData } = require('anta/recipes/umi-perf/src/utils.js');
// reportData's format should be below
const reportData = [
{
name: 'index.html',
score: '0.8333',
resultUrl: {
url: 'https://gw.alipayobjects.com/os/rmsportal/UnsXMxlzPUJRReyKflNJ.js'
}
},
{
name: 'index1.html',
score: '0.9333',
resultUrl: {
url: 'https://gw.alipayobjects.com/os/rmsportal/UnsXMxlzPUJRReyKflNJ.js'
}
}
];
// appInfo's format should be below
const appInfo = {
appName: 'yfd', userName: 'jm', version: '1.0.0', submitTime: '2018-03-21'
};
const html = getHtml(JSON.stringify(reportData), JSON.stringify(appInfo));
const summaryData = getSummaryData(reportData);
// summaryData like this
{
fail: [
{ name: 'index.html', score: '0.8333', resultUrl: [Object] },
{ name: 'index1.html', score: '0.9333', resultUrl: [Object] }
],
pass: [],
great: [],
}
CLI Usage
$ anta <url> <flags>
$ anta --help
anta https://mobile.ant.design/kitchen-sink/
# --runs=n Does n runs (eg. 3, 5), and reports the median run's numbers.
# Median run selected by run with the median TTI.
anta https://mobile.ant.design/kitchen-sink/ --runs=3
# --json Reports json details to stdout.
anta https://mobile.ant.design/kitchen-sink/ --json
# --output-path File path to save results.
anta https://mobile.ant.design/kitchen-sink/ --json --output-path='./lh-report.json'
# --config Provide configuration (defaults to `package.json`). See _Defining config_ below.
anta --config=anta-config.js
# --expectations Assert metrics results against provides values.
# run anta with config in package.json
anta --expectations
All available configuration options
# run anta with config in package.json
anta --config
package.json
...
"anta": {
"url": "http://example.com/",
// other configuration options
"expectations": {
...
}
}
...
anta-config.js
module.exports = {
url: 'http://example.com/',
flags: { // AKA feature flags
runs: '3', // number or runs
// submit: true, // turn on submitting to Google Sheets
// upload: true, // turn on uploading to Google Drive
// view: true, // open uploaded traces to Google Drive in DevTools
expectations: true // turn on assertation metrics results against provides values
chromePath: '/Applications/Google\ Chrome\ Canary.app/Contents/MacOS/Google\ Chrome\ Canary' //optional path to specific Chrome location
chromeFlags: [] // custom flags to pass to Chrome. For a full list of flags, see http://peter.sh/experiments/chromium-command-line-switches/.
// Note: supports all flags from Lighthouse
},
expectations: {
// these expectations values are examples, for your cases set your own
// it's not required to use all metrics, you can use just a few of them
// Read _Available metrics_ where all keys are defined
ttfcp: {
warn: '>=1500',
error: '>=2000'
},
ttfmp: {
warn: '>=2000',
error: '>=3000'
},
fv: {
...
},
psi: {
...
},
vc85: {
...
},
vs100: {
...
},
ttfi: {
...
},
ttci: {
...
}
}
}
# run anta with config in anta-config.js
anta --expectations --config=anta-config.js
Available metrics:
ttfcp
- First Contentful Paintttfmp
- First Meaningful Paintpsi
- Perceptual Speed Indexfv
- First Visual Changevc
- Visually Complete 100%ttfi
- First Interactive (vBeta)ttci
- Time to Consistently Interactive (vBeta)vc85
- Visually Complete 85%dom-size
- dom size
Read article Performance metrics. What’s this all about? or 前端感官性能的衡量和优化实践 which is decoding this metrics.