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import path from 'path'
import glob from 'glob'
import merge from 'deepmerge'
import logger from '@wdio/logger'
import { detectBackend } from '../utils'
import { DEFAULT_CONFIGS, SUPPORTED_HOOKS } from '../constants'
const log = logger('@wdio/config:ConfigParser')
const MERGE_OPTIONS = { clone: false }
export default class ConfigParser {
constructor () {
this._config = DEFAULT_CONFIGS
this._capabilities = []
}
/**
* merges config file with default values
* @param {String} filename path of file relative to current directory
*/
addConfigFile (filename) {
if (typeof filename !== 'string') {
throw new Error('addConfigFile requires filepath')
}
var filePath = path.resolve(process.cwd(), filename)
try {
/**
* clone the original config
*/
var fileConfig = merge(require(filePath).config, {}, MERGE_OPTIONS)
/**
* merge capabilities
*/
const defaultTo = Array.isArray(this._capabilities) ? [] : {}
this._capabilities = merge(this._capabilities, fileConfig.capabilities || defaultTo, MERGE_OPTIONS)
delete fileConfig.capabilities
/**
* Add hooks from the file config and remove them from file config object to avoid
* complications when using merge function
*/
this.addService(fileConfig)
for (let hookName of SUPPORTED_HOOKS) {
delete fileConfig[hookName]
}
this._config = merge(this._config, fileConfig, MERGE_OPTIONS)
/**
* For Sauce Labs RDC we need to determine if the config file has a `testobject_api_key`
* If so, we need to provide a boolean to the `detectBackend` to set the correct hostname
*
* NOTE: This will not work for multi remote
*/
const isRDC = Array.isArray(this._capabilities) && this._capabilities.some(capability => 'testobject_api_key' in capability)
/**
* detect Selenium backend
*/
this._config = merge(detectBackend(this._config, isRDC), this._config, MERGE_OPTIONS)
} catch (e) {
log.error(`Failed loading configuration file: ${filePath}:`, e.message)
throw e
}
}
/**
* merge external object with config object
* @param {Object} object desired object to merge into the config object
*/
merge (object = {}) {
this._config = merge(this._config, object, MERGE_OPTIONS)
let spec = Array.isArray(object.spec) ? object.spec : []
let exclude = Array.isArray(object.exclude) ? object.exclude : []
/**
* overwrite config specs that got piped into the wdio command
*/
if (object.specs && object.specs.length > 0) {
this._config.specs = object.specs
} else if (object.exclude && object.exclude.length > 0) {
this._config.exclude = object.exclude
}
/**
* merge capabilities
*/
const defaultTo = Array.isArray(this._capabilities) ? [] : {}
this._capabilities = merge(this._capabilities, this._config.capabilities || defaultTo, MERGE_OPTIONS)
/**
* run single spec file only, regardless of multiple-spec specification
*/
if (spec.length > 0) {
this._config.specs = [...this.setFilePathToFilterOptions(spec, this._config.specs)]
}
if (exclude.length > 0) {
this._config.exclude = [...this.setFilePathToFilterOptions(exclude, this._config.exclude)]
}
/**
* user and key could get added via cli arguments so we need to detect again
* Note: cli arguments are on the right and overwrite config
* if host and port are default, remove them to get new values
*/
let defaultBackend = detectBackend({})
if (
(this._config.hostname === defaultBackend.hostname) &&
(this._config.port === defaultBackend.port) &&
(this._config.protocol === defaultBackend.protocol)
) {
delete this._config.hostname
delete this._config.port
delete this._config.protocol
}
this._config = merge(detectBackend(this._config), this._config, MERGE_OPTIONS)
}
/**
* Add hooks from an existing service to the runner config.
* @param {Object} service - an object that contains hook methods.
*/
addService (service) {
for (let hookName of SUPPORTED_HOOKS) {
if (!service[hookName]) {
continue
}
if (typeof service[hookName] === 'function') {
this._config[hookName].push(service[hookName].bind(service))
} else if (Array.isArray(service[hookName])) {
for (let hook of service[hookName]) {
if (typeof hook === 'function') {
this._config[hookName].push(hook.bind(service))
}
}
}
}
}
/**
* get excluded files from config pattern
*/
getSpecs (capSpecs, capExclude) {
let specs = ConfigParser.getFilePaths(this._config.specs)
let spec = Array.isArray(this._config.spec) ? this._config.spec : []
let exclude = ConfigParser.getFilePaths(this._config.exclude)
let suites = Array.isArray(this._config.suite) ? this._config.suite : []
/**
* check if user has specified a specific suites to run
*/
if (suites.length > 0) {
let suiteSpecs = []
for (let suiteName of suites) {
// ToDo: log warning if suite was not found
let suite = this._config.suites[suiteName]
if (suite && Array.isArray(suite)) {
suiteSpecs = suiteSpecs.concat(ConfigParser.getFilePaths(suite))
}
}
if (suiteSpecs.length === 0) {
throw new Error(`The suite(s) "${suites.join('", "')}" you specified don't exist ` +
'in your config file or doesn\'t contain any files!')
}
// Allow --suite and --spec to both be defined on the command line
// Removing any duplicate tests that could be included
let tmpSpecs = spec.length > 0 ? [...specs, ...suiteSpecs] : suiteSpecs
if (Array.isArray(capSpecs)) {
tmpSpecs = tmpSpecs.concat(ConfigParser.getFilePaths(capSpecs))
}
if (Array.isArray(capExclude)) {
exclude = exclude.concat(ConfigParser.getFilePaths(capExclude))
}
specs = [...new Set(tmpSpecs)]
return specs.filter(spec => !exclude.includes(spec))
}
if (Array.isArray(capSpecs)) {
specs = specs.concat(ConfigParser.getFilePaths(capSpecs))
}
if (Array.isArray(capExclude)) {
exclude = exclude.concat(ConfigParser.getFilePaths(capExclude))
}
return specs.filter(spec => !exclude.includes(spec))
}
/**
* sets config attribute with file paths from filtering
* options from cli argument
*
* @param {String} cliArgFileList list of files in a string from
* @param {Object} config config object that stores the spec and exlcude attributes
* cli argument
* @return {String[]} List of files that should be included or excluded
*/
setFilePathToFilterOptions (cliArgFileList, config) {
const filesToFilter = new Set()
const fileList = ConfigParser.getFilePaths(config)
cliArgFileList.forEach(filteredFile => {
if (fs.existsSync(filteredFile) && fs.lstatSync(filteredFile).isFile()) {
filesToFilter.add(path.resolve(process.cwd(), filteredFile))
} else {
fileList.forEach(file => {
if (file.match(filteredFile)) {
filesToFilter.add(file)
}
})
}
})
if (filesToFilter.size === 0) {
throw new Error(`spec file(s) ${cliArgFileList.join(', ')} not found`)
}
return filesToFilter
}
/**
* return configs
*/
getConfig () {
return this._config
}
/**
* return capabilities
*/
getCapabilities (i) {
if (typeof i === 'number' && this._capabilities[i]) {
return this._capabilities[i]
}
return this._capabilities
}
/**
* returns a flatten list of globed files
*
* @param {String[]} filenames list of files to glob
* @return {String[]} list of files
*/
static getFilePaths (patterns, omitWarnings) {
let files = []
if (typeof patterns === 'string') {
patterns = [patterns]
}
if (!Array.isArray(patterns)) {
throw new Error('specs or exclude property should be an array of strings')
}
for (let pattern of patterns) {
let filenames = glob.sync(pattern)
filenames = filenames.filter(filename =>
filename.slice(-3) === '.js' ||
filename.slice(-4) === '.es6' ||
filename.slice(-3) === '.ts' ||
filename.slice(-8) === '.feature' ||
filename.slice(-7) === '.coffee')
filenames = filenames.map(filename =>
path.isAbsolute(filename) ? path.normalize(filename) : path.resolve(process.cwd(), filename))
if (filenames.length === 0 && !omitWarnings) {
log.warn('pattern', pattern, 'did not match any file')
}
files = merge(files, filenames, MERGE_OPTIONS)
}
return files
}
}
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