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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,178 @@ | ||
| 'use strict'; | ||
| var path = require('path'); | ||
| var arrify = require('arrify'); | ||
| var pkgConf = require('pkg-conf'); | ||
| var deepAssign = require('deep-assign'); | ||
| var resolveFrom = require('resolve-from'); | ||
| var objectAssign = require('object-assign'); | ||
| var homeOrTmp = require('home-or-tmp'); | ||
| var multimatch = require('multimatch'); | ||
|
|
||
| var DEFAULT_IGNORE = [ | ||
| '**/node_modules/**', | ||
| '**/bower_components/**', | ||
| 'coverage/**', | ||
| '{tmp,temp}/**', | ||
| '**/*.min.js', | ||
| '**/bundle.js', | ||
| 'fixture{-*,}.{js,jsx}', | ||
| '{test/,}fixture{s,}/**', | ||
| 'vendor/**', | ||
| 'dist/**' | ||
| ]; | ||
|
|
||
| var DEFAULT_CONFIG = { | ||
| useEslintrc: false, | ||
| cache: true, | ||
| cacheLocation: path.join(homeOrTmp, '.xo-cache/'), | ||
| baseConfig: { | ||
| extends: 'xo' | ||
| } | ||
| }; | ||
|
|
||
| var DEFAULT_PLUGINS = [ | ||
| 'no-empty-blocks', | ||
| 'no-use-extend-native' | ||
| ]; | ||
|
|
||
| function normalizeOpts(opts) { | ||
| opts = objectAssign({}, opts); | ||
| // alias to help humans | ||
| ['env', 'global', 'ignore', 'plugin', 'rule', 'extend'].forEach(function (singular) { | ||
| var plural = singular + 's'; | ||
| var value = opts[plural] || opts[singular]; | ||
|
|
||
| delete opts[singular]; | ||
|
|
||
| if (value === undefined) { | ||
| return; | ||
| } | ||
|
|
||
| if (singular !== 'rule') { | ||
| value = arrify(value); | ||
| } | ||
|
|
||
| opts[plural] = value; | ||
| }); | ||
|
|
||
| return opts; | ||
| } | ||
|
|
||
| function mergeWithPkgConf(opts) { | ||
| opts = objectAssign({ | ||
| cwd: process.cwd() | ||
| }, opts); | ||
|
|
||
| return objectAssign({}, pkgConf.sync('xo', opts.cwd), opts); | ||
| } | ||
|
|
||
| function buildConfig(opts) { | ||
| var config = deepAssign({}, DEFAULT_CONFIG, { | ||
| envs: opts.envs, | ||
| globals: opts.globals, | ||
| plugins: DEFAULT_PLUGINS.concat(opts.plugins || []), | ||
| rules: opts.rules, | ||
| fix: opts.fix | ||
| }); | ||
|
|
||
| if (!config.rules) { | ||
| config.rules = {}; | ||
| } | ||
|
|
||
| if (opts.space) { | ||
| var spaces = typeof opts.space === 'number' ? opts.space : 2; | ||
| config.rules.indent = [2, spaces, {SwitchCase: 1}]; | ||
| } | ||
|
|
||
| if (opts.semicolon === false) { | ||
| config.rules.semi = [2, 'never']; | ||
| config.rules['semi-spacing'] = [2, {before: false, after: true}]; | ||
| } | ||
|
|
||
| if (opts.esnext) { | ||
| config.baseConfig.extends = 'xo/esnext'; | ||
| } else { | ||
| // always use the Babel parser so it won't throw | ||
| // on esnext features in normal mode | ||
| config.parser = 'babel-eslint'; | ||
| config.plugins = ['babel'].concat(config.plugins); | ||
| config.rules['generator-star-spacing'] = 0; | ||
| config.rules['arrow-parens'] = 0; | ||
| config.rules['object-curly-spacing'] = 0; | ||
| config.rules['babel/object-curly-spacing'] = [2, 'never']; | ||
| } | ||
|
|
||
| if (opts.extends && opts.extends.length > 0) { | ||
| // user's configs must be resolved to their absolute paths | ||
| var configs = opts.extends.map(function (name) { | ||
| if (name.indexOf('eslint-config-') === -1) { | ||
| name = 'eslint-config-' + name; | ||
| } | ||
|
|
||
| return resolveFrom(opts.cwd, name); | ||
| }); | ||
|
|
||
| configs.unshift(config.baseConfig.extends); | ||
|
|
||
| config.baseConfig.extends = configs; | ||
| } | ||
|
|
||
| return config; | ||
| } | ||
|
|
||
| // Builds a list of overrides for a particular path, and a hash value. | ||
| // The hash value is a binary representation of which elements in the `overrides` array apply to the path. | ||
| // | ||
| // If overrides.length === 4, and only the first and third elements apply, then our hash is: 1010 (in binary) | ||
| function findApplicableOverrides(path, overrides) { | ||
| var hash = 0; | ||
| var applicable = []; | ||
| overrides.forEach(function (override) { | ||
| hash <<= 1; | ||
| if (multimatch(path, override.files).length > 0) { | ||
| applicable.push(override); | ||
| hash |= 1; | ||
| } | ||
| }); | ||
| return { | ||
| hash: hash, | ||
| applicable: applicable | ||
| }; | ||
| } | ||
|
|
||
| // Creates grouped sets of merged options together with the paths they apply to. | ||
| function groupConfigs(paths, baseOptions, overrides) { | ||
| var map = {}; | ||
| var arr = []; | ||
|
|
||
| paths.forEach(function (x) { | ||
| var data = findApplicableOverrides(x, overrides); | ||
| if (!map[data.hash]) { | ||
| var mergedOpts = deepAssign.apply(null, [{}, baseOptions].concat(data.applicable)); | ||
| delete mergedOpts.files; | ||
| arr.push(map[data.hash] = { | ||
| opts: mergedOpts, | ||
| paths: [] | ||
| }); | ||
| } | ||
| map[data.hash].paths.push(x); | ||
| }); | ||
|
|
||
| return arr; | ||
| } | ||
|
|
||
| function preprocess(opts) { | ||
| opts = mergeWithPkgConf(opts); | ||
| opts = normalizeOpts(opts); | ||
| opts.ignores = DEFAULT_IGNORE.concat(opts.ignores || []); | ||
| return opts; | ||
| } | ||
|
|
||
| exports.DEFAULT_IGNORE = DEFAULT_IGNORE; | ||
| exports.DEFAULT_CONFIG = DEFAULT_CONFIG; | ||
| exports.mergeWithPkgConf = mergeWithPkgConf; | ||
| exports.normalizeOpts = normalizeOpts; | ||
| exports.buildConfig = buildConfig; | ||
| exports.findApplicableOverrides = findApplicableOverrides; | ||
| exports.groupConfigs = groupConfigs; | ||
| exports.preprocess = preprocess; |
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