forked from standard/standard
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathindex.js
163 lines (139 loc) · 4.05 KB
/
index.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
module.exports.lintText = lintText
module.exports.lintFiles = lintFiles
var dezalgo = require('dezalgo')
var eslint = require('eslint')
var findRoot = require('find-root')
var fs = require('fs')
var glob = require('glob')
var parallel = require('run-parallel')
var path = require('path')
var uniq = require('uniq')
var DEFAULT_PATTERNS = [
'**/*.js',
'**/*.jsx'
]
var DEFAULT_IGNORE_PATTERNS = [
'coverage/**',
'node_modules/**',
'**/*.min.js',
'**/bundle.js'
]
var ESLINT_CONFIG = {
configFile: path.join(__dirname, 'rc', '.eslintrc'),
useEslintrc: false
}
/**
* Lint text to enforce JavaScript Standard Style.
*
* @param {string} text file text to lint
* @param {Object} opts options object
* @param {Array.<String>} opts.ignore file globs to ignore (has sane defaults)
* @param {string} opts.cwd current working directory (default: process.cwd())
* @param {function(Error, Object)} cb callback
*/
function lintText (text, opts, cb) {
if (typeof opts === 'function') {
cb = opts
opts = {}
}
opts = parseOpts(opts)
cb = dezalgo(cb)
var result
try {
result = new eslint.CLIEngine(ESLINT_CONFIG).executeOnText(text)
} catch (err) {
return cb(err)
}
return cb(null, result)
}
/**
* Lint files to enforce JavaScript Standard Style.
*
* @param {Array.<string>} files file globs to lint
* @param {Object} opts options object
* @param {Array.<String>} opts.ignore file globs to ignore (has sane defaults)
* @param {string} opts.cwd current working directory (default: process.cwd())
* @param {function(Error, Object)} cb callback
*/
function lintFiles (files, opts, cb) {
if (typeof opts === 'function') {
cb = opts
opts = {}
}
opts = parseOpts(opts)
cb = dezalgo(cb)
if (typeof files === 'string') files = [ files ]
if (files.length === 0) files = DEFAULT_PATTERNS
// traverse filesystem
parallel(files.map(function (pattern) {
return function (cb) {
glob(pattern, {
cwd: opts.cwd,
ignore: opts.ignore,
nodir: true
}, cb)
}
}), function (err, results) {
if (err) return cb(err)
// flatten nested arrays
var files = results.reduce(function (files, result) {
result.forEach(function (file) {
files.push(path.join(opts.cwd, file))
})
return files
}, [])
// de-dupe
files = uniq(files)
// ignore files in .gitignore
if (opts.ignoreMatcher) {
files = files.filter(function (file) {
return !opts.ignoreMatcher.shouldIgnore(file)
})
}
// undocumented – do not use (used by bin/cmd.js)
if (opts._onFiles) opts._onFiles(files)
var result
try {
result = new eslint.CLIEngine(ESLINT_CONFIG).executeOnFiles(files)
} catch (err) {
return cb(err)
}
return cb(null, result)
})
}
function parseOpts (opts) {
if (!opts) opts = {}
if (!opts.cwd) opts.cwd = process.cwd()
// Add user ignore patterns to default ignore patterns
var ignore = (opts.ignore || []).concat(DEFAULT_IGNORE_PATTERNS)
var root
try {
root = findRoot(opts.cwd)
} catch (e) {}
if (root) {
// Add ignore patterns from the closest `package.json`
try {
var packageOpts = require(path.join(root, 'package.json')).standard
if (packageOpts) ignore = ignore.concat(packageOpts.ignore)
} catch (e) {}
// Add ignore patterns from project root `.gitignore`
try {
var gitignore = fs.readFileSync(path.join(root, '.gitignore'), 'utf8')
ignore = ignore.concat(gitignore.split(/\r?\n|\r/).filter(nonEmpty))
} catch (e) {}
}
// Remove leading "current folder" prefix
ignore = ignore.map(function (pattern) {
return pattern.indexOf('./') === 0 ? pattern.slice(2) : pattern
})
// Allow "folder/" to ignore all sub-folders and files, a la .gitignore
opts.ignore = []
ignore.forEach(function (pattern) {
opts.ignore.push(pattern)
opts.ignore.push(pattern + '/**')
})
return opts
}
function nonEmpty (line) {
return line.trim() !== '' && line[0] !== '#'
}