init source

node_modules/eslint-module-utils/CHANGELOG.md

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+# Change Log
+All notable changes to this module will be documented in this file.
+This project adheres to [Semantic Versioning](http://semver.org/).
+This change log adheres to standards from [Keep a CHANGELOG](http://keepachangelog.com).
+
+## Unreleased
+
+## v2.4.1 - 2019-07-19
+
+### Fixed
+ - Improve parse perf when using `@typescript-eslint/parser` ([#1409], thanks [@bradzacher])
+ - Improve support for Typescript declare structures ([#1356], thanks [@christophercurrie])
+
+## v2.4.0 - 2019-04-13
+
+### Added
+ - no-useless-path-segments: Add noUselessIndex option ([#1290], thanks [@timkraut])
+
+### Fixed
+ - Fix overwriting of dynamic import() CallExpression ([`no-cycle`], [`no-relative-parent-import`], [`no-unresolved`], [`no-useless-path-segments`]) ([#1218], [#1166], [#1035], thanks [@vikr01])
+
+
+## v2.3.0 - 2019-01-22
+### Fixed
+- use `process.hrtime()` for cache dates ([#1160], thanks [@hulkish])
+
+## v2.2.0 - 2018-03-29
+### Changed
+- `parse`: attach node locations by default.
+- `moduleVisitor`: visitor now gets the full `import` statement node as a second
+  argument, so rules may report against the full statement / `require` call instead
+  of only the string literal node.
+
+## v2.1.1 - 2017-06-22
+
+Re-releasing v2.1.0 after vetting (again) and unable to reproduce issue.
+
+
+## v2.1.0 - 2017-06-02 [YANKED]
+
+Yanked due to critical issue with cache key resulting from #839.
+
+### Added
+- `parse` now additionally passes `filePath` to `parser` in `parserOptions` like `eslint` core does
+
+## v2.0.0 - 2016-11-07
+### Changed
+- `unambiguous` no longer exposes fast test regex
+
+### Fixed
+- `unambiguous.test()` regex is now properly in multiline mode
+
+
+
+[#1409]: https://github.com/benmosher/eslint-plugin-import/pull/1409
+[#1356]: https://github.com/benmosher/eslint-plugin-import/pull/1356
+[#1290]: https://github.com/benmosher/eslint-plugin-import/pull/1290
+[#1218]: https://github.com/benmosher/eslint-plugin-import/pull/1218
+[#1166]: https://github.com/benmosher/eslint-plugin-import/issues/1166
+[#1160]: https://github.com/benmosher/eslint-plugin-import/pull/1160
+[#1035]: https://github.com/benmosher/eslint-plugin-import/issues/1035
+
+[@hulkish]: https://github.com/hulkish
+[@timkraut]: https://github.com/timkraut
+[@vikr01]: https://github.com/vikr01
+[@bradzacher]: https://github.com/bradzacher
+[@christophercurrie]: https://github.com/christophercurrie

node_modules/eslint-module-utils/ModuleCache.js

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+"use strict"
+exports.__esModule = true
+
+const log = require('debug')('eslint-module-utils:ModuleCache')
+
+class ModuleCache {
+  constructor(map) {
+    this.map = map || new Map()
+  }
+
+  /**
+   * returns value for returning inline
+   * @param {[type]} cacheKey [description]
+   * @param {[type]} result   [description]
+   */
+  set(cacheKey, result) {
+    this.map.set(cacheKey, { result, lastSeen: process.hrtime() })
+    log('setting entry for', cacheKey)
+    return result
+  }
+
+  get(cacheKey, settings) {
+    if (this.map.has(cacheKey)) {
+      const f = this.map.get(cacheKey)
+      // check fresness
+      if (process.hrtime(f.lastSeen)[0] < settings.lifetime) return f.result
+    } else log('cache miss for', cacheKey)
+    // cache miss
+    return undefined
+  }
+
+}
+
+ModuleCache.getSettings = function (settings) {
+  const cacheSettings = Object.assign({
+    lifetime: 30,  // seconds
+  }, settings['import/cache'])
+
+  // parse infinity
+  if (cacheSettings.lifetime === '∞' || cacheSettings.lifetime === 'Infinity') {
+    cacheSettings.lifetime = Infinity
+  }
+
+  return cacheSettings
+}
+
+exports.default = ModuleCache

node_modules/eslint-module-utils/declaredScope.js

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+"use strict"
+exports.__esModule = true
+
+exports.default = function declaredScope(context, name) {
+  let references = context.getScope().references
+    , i
+  for (i = 0; i < references.length; i++) {
+    if (references[i].identifier.name === name) {
+      break
+    }
+  }
+  if (!references[i]) return undefined
+  return references[i].resolved.scope.type
+}

node_modules/eslint-module-utils/hash.js

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+/**
+ * utilities for hashing config objects.
+ * basically iteratively updates hash with a JSON-like format
+ */
+"use strict"
+exports.__esModule = true
+
+const createHash = require('crypto').createHash
+
+const stringify = JSON.stringify
+
+function hashify(value, hash) {
+  if (!hash) hash = createHash('sha256')
+
+  if (value instanceof Array) {
+    hashArray(value, hash)
+  } else if (value instanceof Object) {
+    hashObject(value, hash)
+  } else {
+    hash.update(stringify(value) || 'undefined')
+  }
+
+  return hash
+}
+exports.default = hashify
+
+function hashArray(array, hash) {
+  if (!hash) hash = createHash('sha256')
+
+  hash.update('[')
+  for (let i = 0; i < array.length; i++) {
+    hashify(array[i], hash)
+    hash.update(',')
+  }
+  hash.update(']')
+
+  return hash
+}
+hashify.array = hashArray
+exports.hashArray = hashArray
+
+function hashObject(object, hash) {
+  if (!hash) hash = createHash('sha256')
+
+  hash.update("{")
+  Object.keys(object).sort().forEach(key => {
+    hash.update(stringify(key))
+    hash.update(':')
+    hashify(object[key], hash)
+    hash.update(",")
+  })
+  hash.update('}')
+
+  return hash
+}
+hashify.object = hashObject
+exports.hashObject = hashObject
+
+

node_modules/eslint-module-utils/ignore.js

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+'use strict'
+exports.__esModule = true
+
+const extname = require('path').extname
+
+const log = require('debug')('eslint-plugin-import:utils:ignore')
+
+// one-shot memoized
+let cachedSet, lastSettings
+function validExtensions(context) {
+  if (cachedSet && context.settings === lastSettings) {
+    return cachedSet
+  }
+
+  lastSettings = context.settings
+  cachedSet = makeValidExtensionSet(context.settings)
+  return cachedSet
+}
+
+function makeValidExtensionSet(settings) {
+  // start with explicit JS-parsed extensions
+  const exts = new Set(settings['import/extensions'] || [ '.js' ])
+
+  // all alternate parser extensions are also valid
+  if ('import/parsers' in settings) {
+    for (let parser in settings['import/parsers']) {
+      const parserSettings = settings['import/parsers'][parser]
+      if (!Array.isArray(parserSettings)) {
+        throw new TypeError('"settings" for ' + parser + ' must be an array')
+      }
+      parserSettings.forEach(ext => exts.add(ext))
+    }
+  }
+
+  return exts
+}
+exports.getFileExtensions = makeValidExtensionSet
+
+exports.default = function ignore(path, context) {
+  // check extension whitelist first (cheap)
+  if (!hasValidExtension(path, context)) return true
+
+  if (!('import/ignore' in context.settings)) return false
+  const ignoreStrings = context.settings['import/ignore']
+
+  for (let i = 0; i < ignoreStrings.length; i++) {
+    const regex = new RegExp(ignoreStrings[i])
+    if (regex.test(path)) {
+      log(`ignoring ${path}, matched pattern /${ignoreStrings[i]}/`)
+      return true
+    }
+  }
+
+  return false
+}
+
+function hasValidExtension(path, context) {
+  return validExtensions(context).has(extname(path))
+}
+exports.hasValidExtension = hasValidExtension

node_modules/eslint-module-utils/module-require.js

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+"use strict"
+exports.__esModule = true
+
+const Module = require('module')
+const path = require('path')
+
+// borrowed from babel-eslint
+function createModule(filename) {
+  const mod = new Module(filename)
+  mod.filename = filename
+  mod.paths = Module._nodeModulePaths(path.dirname(filename))
+  return mod
+}
+
+exports.default = function moduleRequire(p) {
+  try {
+    // attempt to get espree relative to eslint
+    const eslintPath = require.resolve('eslint')
+    const eslintModule = createModule(eslintPath)
+    return require(Module._resolveFilename(p, eslintModule))
+  } catch(err) { /* ignore */ }
+
+  try {
+    // try relative to entry point
+    return require.main.require(p)
+  } catch(err) { /* ignore */ }
+
+  // finally, try from here
+  return require(p)
+}

node_modules/eslint-module-utils/moduleVisitor.js

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+'use strict'
+exports.__esModule = true
+
+/**
+ * Returns an object of node visitors that will call
+ * 'visitor' with every discovered module path.
+ *
+ * todo: correct function prototype for visitor
+ * @param  {Function(String)} visitor [description]
+ * @param  {[type]} options [description]
+ * @return {object}
+ */
+exports.default = function visitModules(visitor, options) {
+  // if esmodule is not explicitly disabled, it is assumed to be enabled
+  options = Object.assign({ esmodule: true }, options)
+
+  let ignoreRegExps = []
+  if (options.ignore != null) {
+    ignoreRegExps = options.ignore.map(p => new RegExp(p))
+  }
+
+  function checkSourceValue(source, importer) {
+    if (source == null) return //?
+
+    // handle ignore
+    if (ignoreRegExps.some(re => re.test(source.value))) return
+
+    // fire visitor
+    visitor(source, importer)
+  }
+
+  // for import-y declarations
+  function checkSource(node) {
+    checkSourceValue(node.source, node)
+  }
+
+  // for esmodule dynamic `import()` calls
+  function checkImportCall(node) {
+    if (node.callee.type !== 'Import') return
+    if (node.arguments.length !== 1) return
+
+    const modulePath = node.arguments[0]
+    if (modulePath.type !== 'Literal') return
+    if (typeof modulePath.value !== 'string') return
+
+    checkSourceValue(modulePath, node)
+  }
+
+  // for CommonJS `require` calls
+  // adapted from @mctep: http://git.io/v4rAu
+  function checkCommon(call) {
+    if (call.callee.type !== 'Identifier') return
+    if (call.callee.name !== 'require') return
+    if (call.arguments.length !== 1) return
+
+    const modulePath = call.arguments[0]
+    if (modulePath.type !== 'Literal') return
+    if (typeof modulePath.value !== 'string') return
+
+    checkSourceValue(modulePath, call)
+  }
+
+  function checkAMD(call) {
+    if (call.callee.type !== 'Identifier') return
+    if (call.callee.name !== 'require' &&
+        call.callee.name !== 'define') return
+    if (call.arguments.length !== 2) return
+
+    const modules = call.arguments[0]
+    if (modules.type !== 'ArrayExpression') return
+
+    for (let element of modules.elements) {
+      if (element.type !== 'Literal') continue
+      if (typeof element.value !== 'string') continue
+
+      if (element.value === 'require' ||
+          element.value === 'exports') continue // magic modules: http://git.io/vByan
+
+      checkSourceValue(element, element)
+    }
+  }
+
+  const visitors = {}
+  if (options.esmodule) {
+    Object.assign(visitors, {
+      'ImportDeclaration': checkSource,
+      'ExportNamedDeclaration': checkSource,
+      'ExportAllDeclaration': checkSource,
+      'CallExpression': checkImportCall,
+    })
+  }
+
+  if (options.commonjs || options.amd) {
+    const currentCallExpression = visitors['CallExpression']
+    visitors['CallExpression'] = function (call) {
+      if (currentCallExpression) currentCallExpression(call)
+      if (options.commonjs) checkCommon(call)
+      if (options.amd) checkAMD(call)
+    }
+  }
+
+  return visitors
+}
+
+/**
+ * make an options schema for the module visitor, optionally
+ * adding extra fields.
+ */
+function makeOptionsSchema(additionalProperties) {
+  const base =  {
+    'type': 'object',
+    'properties': {
+      'commonjs': { 'type': 'boolean' },
+      'amd': { 'type': 'boolean' },
+      'esmodule': { 'type': 'boolean' },
+      'ignore': {
+        'type': 'array',
+        'minItems': 1,
+        'items': { 'type': 'string' },
+        'uniqueItems': true,
+      },
+    },
+    'additionalProperties': false,
+  }
+
+  if (additionalProperties){
+    for (let key in additionalProperties) {
+      base.properties[key] = additionalProperties[key]
+    }
+  }
+
+  return base
+}
+exports.makeOptionsSchema = makeOptionsSchema
+
+/**
+ * json schema object for options parameter. can be used to build
+ * rule options schema object.
+ * @type {Object}
+ */
+exports.optionsSchema = makeOptionsSchema()

node_modules/eslint-module-utils/package.json

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+{
+  "_args": [
+    [
+      "eslint-module-utils@2.4.1",
+      "/home/app"
+    ]
+  ],
+  "_development": true,
+  "_from": "eslint-module-utils@2.4.1",
+  "_id": "eslint-module-utils@2.4.1",
+  "_inBundle": false,
+  "_integrity": "sha512-H6DOj+ejw7Tesdgbfs4jeS4YMFrT8uI8xwd1gtQqXssaR0EQ26L+2O/w6wkYFy2MymON0fTwHmXBvvfLNZVZEw==",
+  "_location": "/eslint-module-utils",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "eslint-module-utils@2.4.1",
+    "name": "eslint-module-utils",
+    "escapedName": "eslint-module-utils",
+    "rawSpec": "2.4.1",
+    "saveSpec": null,
+    "fetchSpec": "2.4.1"
+  },
+  "_requiredBy": [
+    "/eslint-plugin-import"
+  ],
+  "_resolved": "https://registry.npmjs.org/eslint-module-utils/-/eslint-module-utils-2.4.1.tgz",
+  "_spec": "2.4.1",
+  "_where": "/home/app",
+  "author": {
+    "name": "Ben Mosher",
+    "email": "me@benmosher.com"
+  },
+  "bugs": {
+    "url": "https://github.com/benmosher/eslint-plugin-import/issues"
+  },
+  "dependencies": {
+    "debug": "^2.6.8",
+    "pkg-dir": "^2.0.0"
+  },
+  "description": "Core utilities to support eslint-plugin-import and other module-related plugins.",
+  "engines": {
+    "node": ">=4"
+  },
+  "homepage": "https://github.com/benmosher/eslint-plugin-import#readme",
+  "keywords": [
+    "eslint-plugin-import",
+    "eslint",
+    "modules",
+    "esmodules"
+  ],
+  "license": "MIT",
+  "name": "eslint-module-utils",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/benmosher/eslint-plugin-import.git"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "version": "2.4.1"
+}

node_modules/eslint-module-utils/parse.js

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+"use strict"
+exports.__esModule = true
+
+const moduleRequire = require('./module-require').default
+const extname = require('path').extname
+
+const log = require('debug')('eslint-plugin-import:parse')
+
+exports.default = function parse(path, content, context) {
+
+  if (context == null) throw new Error('need context to parse properly')
+
+  let parserOptions = context.parserOptions
+  const parserPath = getParserPath(path, context)
+
+  if (!parserPath) throw new Error('parserPath is required!')
+
+  // hack: espree blows up with frozen options
+  parserOptions = Object.assign({}, parserOptions)
+  parserOptions.ecmaFeatures = Object.assign({}, parserOptions.ecmaFeatures)
+
+  // always include comments and tokens (for doc parsing)
+  parserOptions.comment = true
+  parserOptions.attachComment = true  // keeping this for backward-compat with  older parsers
+  parserOptions.tokens = true
+
+  // attach node locations
+  parserOptions.loc = true
+  parserOptions.range = true
+
+  // provide the `filePath` like eslint itself does, in `parserOptions`
+  // https://github.com/eslint/eslint/blob/3ec436ee/lib/linter.js#L637
+  parserOptions.filePath = path
+  
+  // @typescript-eslint/parser will parse the entire project with typechecking if you provide
+  // "project" or "projects" in parserOptions. Removing these options means the parser will
+  // only parse one file in isolate mode, which is much, much faster.
+  // https://github.com/benmosher/eslint-plugin-import/issues/1408#issuecomment-509298962
+  delete parserOptions.project;
+  delete parserOptions.projects;
+  
+  // require the parser relative to the main module (i.e., ESLint)
+  const parser = moduleRequire(parserPath)
+
+  return parser.parse(content, parserOptions)
+}
+
+function getParserPath(path, context) {
+  const parsers = context.settings['import/parsers']
+  if (parsers != null) {
+    const extension = extname(path)
+    for (let parserPath in parsers) {
+      if (parsers[parserPath].indexOf(extension) > -1) {
+        // use this alternate parser
+        log('using alt parser:', parserPath)
+        return parserPath
+      }
+    }
+  }
+  // default to use ESLint parser
+  return context.parserPath
+}

node_modules/eslint-module-utils/resolve.js

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+"use strict"
+exports.__esModule = true
+
+const pkgDir = require('pkg-dir')
+
+const fs = require('fs')
+const path = require('path')
+
+const hashObject = require('./hash').hashObject
+    , ModuleCache = require('./ModuleCache').default
+
+const CASE_SENSITIVE_FS = !fs.existsSync(path.join(__dirname, 'reSOLVE.js'))
+exports.CASE_SENSITIVE_FS = CASE_SENSITIVE_FS
+
+const fileExistsCache = new ModuleCache()
+
+function tryRequire(target) {
+  let resolved;
+  try {
+    // Check if the target exists
+    resolved = require.resolve(target);
+  } catch(e) {
+    // If the target does not exist then just return undefined
+    return undefined;
+  }
+
+  // If the target exists then return the loaded module
+  return require(resolved);
+}
+
+// http://stackoverflow.com/a/27382838
+exports.fileExistsWithCaseSync = function fileExistsWithCaseSync(filepath, cacheSettings) {
+  // don't care if the FS is case-sensitive
+  if (CASE_SENSITIVE_FS) return true
+
+  // null means it resolved to a builtin
+  if (filepath === null) return true
+  if (filepath.toLowerCase() === process.cwd().toLowerCase()) return true
+  const parsedPath = path.parse(filepath)
+      , dir = parsedPath.dir
+
+  let result = fileExistsCache.get(filepath, cacheSettings)
+  if (result != null) return result
+
+  // base case
+  if (dir === '' || parsedPath.root === filepath) {
+    result = true
+  } else {
+    const filenames = fs.readdirSync(dir)
+    if (filenames.indexOf(parsedPath.base) === -1) {
+      result = false
+    } else {
+      result = fileExistsWithCaseSync(dir, cacheSettings)
+    }
+  }
+  fileExistsCache.set(filepath, result)
+  return result
+}
+
+function relative(modulePath, sourceFile, settings) {
+  return fullResolve(modulePath, sourceFile, settings).path
+}
+
+function fullResolve(modulePath, sourceFile, settings) {
+  // check if this is a bonus core module
+  const coreSet = new Set(settings['import/core-modules'])
+  if (coreSet != null && coreSet.has(modulePath)) return { found: true, path: null }
+
+  const sourceDir = path.dirname(sourceFile)
+      , cacheKey = sourceDir + hashObject(settings).digest('hex') + modulePath
+
+  const cacheSettings = ModuleCache.getSettings(settings)
+
+  const cachedPath = fileExistsCache.get(cacheKey, cacheSettings)
+  if (cachedPath !== undefined) return { found: true, path: cachedPath }
+
+  function cache(resolvedPath) {
+    fileExistsCache.set(cacheKey, resolvedPath)
+  }
+
+  function withResolver(resolver, config) {
+
+    function v1() {
+      try {
+        const resolved = resolver.resolveImport(modulePath, sourceFile, config)
+        if (resolved === undefined) return { found: false }
+        return { found: true, path: resolved }
+      } catch (err) {
+        return { found: false }
+      }
+    }
+
+    function v2() {
+      return resolver.resolve(modulePath, sourceFile, config)
+    }
+
+    switch (resolver.interfaceVersion) {
+      case 2:
+        return v2()
+
+      default:
+      case 1:
+        return v1()
+    }
+  }
+
+  const configResolvers = (settings['import/resolver']
+    || { 'node': settings['import/resolve'] }) // backward compatibility
+
+  const resolvers = resolverReducer(configResolvers, new Map())
+
+  for (let pair of resolvers) {
+    let name = pair[0]
+      , config = pair[1]
+    const resolver = requireResolver(name, sourceFile)
+        , resolved = withResolver(resolver, config)
+
+    if (!resolved.found) continue
+
+    // else, counts
+    cache(resolved.path)
+    return resolved
+  }
+
+  // failed
+  // cache(undefined)
+  return { found: false }
+}
+exports.relative = relative
+
+function resolverReducer(resolvers, map) {
+  if (resolvers instanceof Array) {
+    resolvers.forEach(r => resolverReducer(r, map))
+    return map
+  }
+
+  if (typeof resolvers === 'string') {
+    map.set(resolvers, null)
+    return map
+  }
+
+  if (typeof resolvers === 'object') {
+    for (let key in resolvers) {
+      map.set(key, resolvers[key])
+    }
+    return map
+  }
+
+  throw new Error('invalid resolver config')
+}
+
+function getBaseDir(sourceFile) {
+  return pkgDir.sync(sourceFile) || process.cwd()
+}
+function requireResolver(name, sourceFile) {
+  // Try to resolve package with conventional name
+  let resolver = tryRequire(`eslint-import-resolver-${name}`) ||
+    tryRequire(name) ||
+    tryRequire(path.resolve(getBaseDir(sourceFile), name))
+
+  if (!resolver) {
+    throw new Error(`unable to load resolver "${name}".`)
+  }
+  if (!isResolverValid(resolver)) {
+    throw new Error(`${name} with invalid interface loaded as resolver`)
+  }
+
+  return resolver
+}
+
+function isResolverValid(resolver) {
+  if (resolver.interfaceVersion === 2) {
+    return resolver.resolve && typeof resolver.resolve === 'function'
+  } else {
+    return resolver.resolveImport && typeof resolver.resolveImport === 'function'
+  }
+}
+
+const erroredContexts = new Set()
+
+/**
+ * Given
+ * @param  {string} p - module path
+ * @param  {object} context - ESLint context
+ * @return {string} - the full module filesystem path;
+ *                    null if package is core;
+ *                    undefined if not found
+ */
+function resolve(p, context) {
+  try {
+    return relative( p
+                   , context.getFilename()
+                   , context.settings
+                   )
+  } catch (err) {
+    if (!erroredContexts.has(context)) {
+      context.report({
+        message: `Resolve error: ${err.message}`,
+        loc: { line: 1, column: 0 },
+      })
+      erroredContexts.add(context)
+    }
+  }
+}
+resolve.relative = relative
+exports.default = resolve

node_modules/eslint-module-utils/unambiguous.js

@@ -0,0 +1,30 @@
+'use strict'
+exports.__esModule = true
+
+
+const pattern = /(^|;)\s*(export|import)((\s+\w)|(\s*[{*=]))/m
+/**
+ * detect possible imports/exports without a full parse.
+ *
+ * A negative test means that a file is definitely _not_ a module.
+ * A positive test means it _could_ be.
+ *
+ * Not perfect, just a fast way to disqualify large non-ES6 modules and
+ * avoid a parse.
+ * @type {RegExp}
+ */
+exports.test = function isMaybeUnambiguousModule(content) {
+  return pattern.test(content)
+}
+
+// future-/Babel-proof at the expense of being a little loose
+const unambiguousNodeType = /^(?:(?:Exp|Imp)ort.*Declaration|TSExportAssignment)$/
+
+/**
+ * Given an AST, return true if the AST unambiguously represents a module.
+ * @param  {Program node}  ast
+ * @return {Boolean}
+ */
+exports.isModule = function isUnambiguousModule(ast) {
+  return ast.body.some(node => unambiguousNodeType.test(node.type))
+}