116 lines
3.4 KiB
JavaScript
116 lines
3.4 KiB
JavaScript
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const assign = require('object-assign')
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const arrify = require('arrify')
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const micromatch = require('micromatch')
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const path = require('path')
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const readPkgUp = require('read-pkg-up')
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const requireMainFilename = require('require-main-filename')
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function TestExclude (opts) {
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assign(this, {
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cwd: process.cwd(),
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include: false,
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relativePath: true,
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configKey: null, // the key to load config from in package.json.
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configPath: null, // optionally override requireMainFilename.
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configFound: false
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}, opts)
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if (typeof this.include === 'string') this.include = [this.include]
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if (typeof this.exclude === 'string') this.exclude = [this.exclude]
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if (!this.include && !this.exclude && this.configKey) {
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assign(this, this.pkgConf(this.configKey, this.configPath))
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}
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if (!this.exclude || !Array.isArray(this.exclude)) {
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this.exclude = exportFunc.defaultExclude
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}
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if (this.include && this.include.length > 0) {
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this.include = prepGlobPatterns(arrify(this.include))
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} else {
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this.include = false
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}
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if (!this.removeNegatedModuleExclude() && this.exclude.indexOf('**/node_modules/**') === -1) {
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this.exclude.push('**/node_modules/**')
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}
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this.exclude = prepGlobPatterns(
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[].concat(arrify(this.exclude))
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)
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}
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// if a glob has been provided that explicitly negates
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// the **/node_modules/** default exclude rule, remove it from
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// excludes but don't add the default exclude rule.
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TestExclude.prototype.removeNegatedModuleExclude = function () {
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var moduleExcludeNegated = false
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this.exclude = this.exclude.filter(function (e) {
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var negated = !!micromatch('./node_modules/foo.js', e, {nonegate: false}).length !==
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!!micromatch('./node_modules/foo.js', e, {nonegate: true}).length
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if (negated) moduleExcludeNegated = true
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return !negated
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})
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return moduleExcludeNegated
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}
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TestExclude.prototype.shouldInstrument = function (filename, relFile) {
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var pathToCheck = filename
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if (this.relativePath) {
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relFile = relFile || path.relative(this.cwd, filename)
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// Don't instrument files that are outside of the current working directory.
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if (/^\.\./.test(path.relative(this.cwd, filename))) return false
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pathToCheck = relFile.replace(/^\.[\\/]/, '') // remove leading './' or '.\'.
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}
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return (!this.include || micromatch.any(pathToCheck, this.include, {dotfiles: true})) && !micromatch.any(pathToCheck, this.exclude, {dotfiles: true})
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}
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TestExclude.prototype.pkgConf = function (key, path) {
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const obj = readPkgUp.sync({
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cwd: path || requireMainFilename(require)
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})
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if (obj.pkg && obj.pkg[key] && typeof obj.pkg[key] === 'object') {
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this.configFound = true
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return obj.pkg[key]
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} else {
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return {}
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}
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}
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function prepGlobPatterns (patterns) {
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return patterns.reduce(function (result, pattern) {
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// Allow gitignore style of directory exclusion
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if (!/\/\*\*$/.test(pattern)) {
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result = result.concat(pattern.replace(/\/$/, '') + '/**')
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}
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// Any rules of the form **/foo.js, should also match foo.js.
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if (/^\*\*\//.test(pattern)) {
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result = result.concat(pattern.replace(/^\*\*\//, ''))
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}
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return result.concat(pattern)
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}, [])
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}
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var exportFunc = function (opts) {
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return new TestExclude(opts)
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}
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exportFunc.defaultExclude = [
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'coverage/**',
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'test/**',
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'test{,-*}.js',
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'**/*.test.js',
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'**/__tests__/**',
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'**/node_modules/**'
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]
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module.exports = exportFunc
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