64 lines
2.1 KiB
JavaScript
64 lines
2.1 KiB
JavaScript
'use strict'
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const NYC = require('../../index.js')
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const path = require('path')
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const { promisify } = require('util')
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const resolveFrom = require('resolve-from')
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const rimraf = promisify(require('rimraf'))
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const { cliWrapper, setupOptions } = require('./helpers.js')
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exports.command = 'instrument <input> [output]'
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exports.describe = 'instruments a file or a directory tree and writes the instrumented code to the desired output location'
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exports.builder = function (yargs) {
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yargs
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.demandCommand(0, 0)
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.example('$0 instrument ./lib ./output', 'instrument all .js files in ./lib with coverage and output in ./output')
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setupOptions(yargs, 'instrument')
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}
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exports.handler = cliWrapper(async argv => {
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if (argv.output && !argv.inPlace && (path.resolve(argv.cwd, argv.input) === path.resolve(argv.cwd, argv.output))) {
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throw new Error('cannot instrument files in place, <input> must differ from <output>. Set \'--in-place\' to force')
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}
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if (path.relative(argv.cwd, path.resolve(argv.cwd, argv.input)).startsWith('..')) {
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throw new Error('cannot instrument files outside project root directory')
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}
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if (argv.delete && argv.inPlace) {
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throw new Error('cannot use \'--delete\' when instrumenting files in place')
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}
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if (argv.delete && argv.output && argv.output.length !== 0) {
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const relPath = path.relative(process.cwd(), path.resolve(argv.output))
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if (relPath !== '' && !relPath.startsWith('..')) {
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await rimraf(argv.output)
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} else {
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throw new Error(`attempt to delete '${process.cwd()}' or containing directory.`)
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}
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}
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// If instrument is set to false enable a noop instrumenter.
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argv.instrumenter = (argv.instrument)
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? './lib/instrumenters/istanbul'
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: './lib/instrumenters/noop'
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if (argv.inPlace) {
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argv.output = argv.input
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argv.completeCopy = false
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}
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const nyc = new NYC(argv)
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if (!argv.useSpawnWrap) {
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nyc.require.forEach(requireModule => {
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const mod = resolveFrom.silent(nyc.cwd, requireModule) || requireModule
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require(mod)
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})
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}
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await nyc.instrumentAllFiles(argv.input, argv.output)
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})
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