1 | 'use strict'
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2 |
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3 | const fs = require('graceful-fs')
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4 | const path = require('path')
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5 | const helper = require('./helper')
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6 |
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7 | const log = require('./logger').create('plugin')
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8 |
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9 | const IGNORED_PACKAGES = ['karma-cli', 'karma-runner.github.com']
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10 |
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11 | function resolve (plugins, emitter) {
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12 | const modules = []
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13 |
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14 | function requirePlugin (name) {
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15 | log.debug(`Loading plugin ${name}.`)
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16 | try {
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17 | modules.push(require(name))
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18 | } catch (e) {
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19 | if (e.code === 'MODULE_NOT_FOUND' && e.message.includes(name)) {
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20 | log.error(`Cannot find plugin "${name}".\n Did you forget to install it?\n npm install ${name} --save-dev`)
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21 | } else {
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22 | log.error(`Error during loading "${name}" plugin:\n ${e.message}`)
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23 | }
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24 | emitter.emit('load_error', 'plug_in', name)
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25 | }
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26 | }
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27 |
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28 | plugins.forEach(function (plugin) {
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29 | if (helper.isString(plugin)) {
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30 | if (!plugin.includes('*')) {
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31 | requirePlugin(plugin)
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32 | return
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33 | }
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34 | const pluginDirectory = path.normalize(path.join(__dirname, '/../..'))
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35 | const regexp = new RegExp(`^${plugin.replace('*', '.*')}`)
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36 |
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37 | log.debug(`Loading ${plugin} from ${pluginDirectory}`)
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38 | fs.readdirSync(pluginDirectory)
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39 | .filter((pluginName) => !IGNORED_PACKAGES.includes(pluginName) && regexp.test(pluginName))
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40 | .forEach((pluginName) => requirePlugin(`${pluginDirectory}/${pluginName}`))
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41 | } else if (helper.isObject(plugin)) {
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42 | log.debug(`Loading inlined plugin (defining ${Object.keys(plugin).join(', ')}).`)
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43 | modules.push(plugin)
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44 | } else {
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45 | log.error(`Invalid plugin ${plugin}`)
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46 | emitter.emit('load_error', 'plug_in', plugin)
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47 | }
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48 | })
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49 |
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50 | return modules
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51 | }
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52 |
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53 | exports.resolve = resolve
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