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PATH: usr / local / lib / node_modules / ghost-cli / node_modules / replace-in-file / node_modules / yargs / lib

'use strict'
const fs = require('fs')
const path = require('path')
const YError = require('./yerror')

let previouslyVisitedConfigs = []

function checkForCircularExtends (cfgPath) {
  if (previouslyVisitedConfigs.indexOf(cfgPath) > -1) {
    throw new YError(`Circular extended configurations: '${cfgPath}'.`)
  }
}

function getPathToDefaultConfig (cwd, pathToExtend) {
  return path.resolve(cwd, pathToExtend)
}

function applyExtends (config, cwd) {
  let defaultConfig = {}

if (config.hasOwnProperty('extends')) {
    if (typeof config.extends !== 'string') return defaultConfig
    const isPath = /\.json|\..*rc$/.test(config.extends)
    let pathToDefault = null
    if (!isPath) {
      try {
        pathToDefault = require.resolve(config.extends)
      } catch (err) {
        // most likely this simply isn't a module.
      }
    } else {
      pathToDefault = getPathToDefaultConfig(cwd, config.extends)
    }
    // maybe the module uses key for some other reason,
    // err on side of caution.
    if (!pathToDefault && !isPath) return config

checkForCircularExtends(pathToDefault)

previouslyVisitedConfigs.push(pathToDefault)

defaultConfig = isPath ? JSON.parse(fs.readFileSync(pathToDefault, 'utf8')) : require(config.extends)
    delete config.extends
    defaultConfig = applyExtends(defaultConfig, path.dirname(pathToDefault))
  }

previouslyVisitedConfigs = []

return Object.assign({}, defaultConfig, config)
}

module.exports = applyExtends

[-] apply-extends.js [edit]
[-] completion-templates.js [edit]
[-] obj-filter.js [edit]
[-] usage.js [edit]
[-] completion.js [edit]
[+] ..
[-] is-promise.js [edit]
[-] validation.js [edit]
[-] argsert.js [edit]
[-] decamelize.js [edit]
[-] middleware.js [edit]
[-] command.js [edit]
[-] levenshtein.js [edit]
[-] yerror.js [edit]