mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-24 09:25:15 +00:00
464 lines
11 KiB
JavaScript
Executable File
464 lines
11 KiB
JavaScript
Executable File
// A simple implementation of make-array
|
|
function make_array (subject) {
|
|
return Array.isArray(subject)
|
|
? subject
|
|
: [subject]
|
|
}
|
|
|
|
const REGEX_BLANK_LINE = /^\s+$/
|
|
const REGEX_LEADING_EXCAPED_EXCLAMATION = /^\\!/
|
|
const REGEX_LEADING_EXCAPED_HASH = /^\\#/
|
|
const SLASH = '/'
|
|
const KEY_IGNORE = typeof Symbol !== 'undefined'
|
|
? Symbol.for('node-ignore')
|
|
/* istanbul ignore next */
|
|
: 'node-ignore'
|
|
|
|
const define = (object, key, value) =>
|
|
Object.defineProperty(object, key, {value})
|
|
|
|
const REGEX_REGEXP_RANGE = /([0-z])-([0-z])/g
|
|
|
|
// Sanitize the range of a regular expression
|
|
// The cases are complicated, see test cases for details
|
|
const sanitizeRange = range => range.replace(
|
|
REGEX_REGEXP_RANGE,
|
|
(match, from, to) => from.charCodeAt(0) <= to.charCodeAt(0)
|
|
? match
|
|
// Invalid range (out of order) which is ok for gitignore rules but
|
|
// fatal for JavaScript regular expression, so eliminate it.
|
|
: ''
|
|
)
|
|
|
|
// > If the pattern ends with a slash,
|
|
// > it is removed for the purpose of the following description,
|
|
// > but it would only find a match with a directory.
|
|
// > In other words, foo/ will match a directory foo and paths underneath it,
|
|
// > but will not match a regular file or a symbolic link foo
|
|
// > (this is consistent with the way how pathspec works in general in Git).
|
|
// '`foo/`' will not match regular file '`foo`' or symbolic link '`foo`'
|
|
// -> ignore-rules will not deal with it, because it costs extra `fs.stat` call
|
|
// you could use option `mark: true` with `glob`
|
|
|
|
// '`foo/`' should not continue with the '`..`'
|
|
const DEFAULT_REPLACER_PREFIX = [
|
|
|
|
// > Trailing spaces are ignored unless they are quoted with backslash ("\")
|
|
[
|
|
// (a\ ) -> (a )
|
|
// (a ) -> (a)
|
|
// (a \ ) -> (a )
|
|
/\\?\s+$/,
|
|
match => match.indexOf('\\') === 0
|
|
? ' '
|
|
: ''
|
|
],
|
|
|
|
// replace (\ ) with ' '
|
|
[
|
|
/\\\s/g,
|
|
() => ' '
|
|
],
|
|
|
|
// Escape metacharacters
|
|
// which is written down by users but means special for regular expressions.
|
|
|
|
// > There are 12 characters with special meanings:
|
|
// > - the backslash \,
|
|
// > - the caret ^,
|
|
// > - the dollar sign $,
|
|
// > - the period or dot .,
|
|
// > - the vertical bar or pipe symbol |,
|
|
// > - the question mark ?,
|
|
// > - the asterisk or star *,
|
|
// > - the plus sign +,
|
|
// > - the opening parenthesis (,
|
|
// > - the closing parenthesis ),
|
|
// > - and the opening square bracket [,
|
|
// > - the opening curly brace {,
|
|
// > These special characters are often called "metacharacters".
|
|
[
|
|
/[\\^$.|*+(){]/g,
|
|
match => `\\${match}`
|
|
],
|
|
|
|
[
|
|
// > [abc] matches any character inside the brackets
|
|
// > (in this case a, b, or c);
|
|
/\[([^\]/]*)($|\])/g,
|
|
(match, p1, p2) => p2 === ']'
|
|
? `[${sanitizeRange(p1)}]`
|
|
: `\\${match}`
|
|
],
|
|
|
|
[
|
|
// > a question mark (?) matches a single character
|
|
/(?!\\)\?/g,
|
|
() => '[^/]'
|
|
],
|
|
|
|
// leading slash
|
|
[
|
|
|
|
// > A leading slash matches the beginning of the pathname.
|
|
// > For example, "/*.c" matches "cat-file.c" but not "mozilla-sha1/sha1.c".
|
|
// A leading slash matches the beginning of the pathname
|
|
/^\//,
|
|
() => '^'
|
|
],
|
|
|
|
// replace special metacharacter slash after the leading slash
|
|
[
|
|
/\//g,
|
|
() => '\\/'
|
|
],
|
|
|
|
[
|
|
// > A leading "**" followed by a slash means match in all directories.
|
|
// > For example, "**/foo" matches file or directory "foo" anywhere,
|
|
// > the same as pattern "foo".
|
|
// > "**/foo/bar" matches file or directory "bar" anywhere that is directly
|
|
// > under directory "foo".
|
|
// Notice that the '*'s have been replaced as '\\*'
|
|
/^\^*\\\*\\\*\\\//,
|
|
|
|
// '**/foo' <-> 'foo'
|
|
() => '^(?:.*\\/)?'
|
|
]
|
|
]
|
|
|
|
const DEFAULT_REPLACER_SUFFIX = [
|
|
// starting
|
|
[
|
|
// there will be no leading '/'
|
|
// (which has been replaced by section "leading slash")
|
|
// If starts with '**', adding a '^' to the regular expression also works
|
|
/^(?=[^^])/,
|
|
function startingReplacer () {
|
|
return !/\/(?!$)/.test(this)
|
|
// > If the pattern does not contain a slash /,
|
|
// > Git treats it as a shell glob pattern
|
|
// Actually, if there is only a trailing slash,
|
|
// git also treats it as a shell glob pattern
|
|
? '(?:^|\\/)'
|
|
|
|
// > Otherwise, Git treats the pattern as a shell glob suitable for
|
|
// > consumption by fnmatch(3)
|
|
: '^'
|
|
}
|
|
],
|
|
|
|
// two globstars
|
|
[
|
|
// Use lookahead assertions so that we could match more than one `'/**'`
|
|
/\\\/\\\*\\\*(?=\\\/|$)/g,
|
|
|
|
// Zero, one or several directories
|
|
// should not use '*', or it will be replaced by the next replacer
|
|
|
|
// Check if it is not the last `'/**'`
|
|
(match, index, str) => index + 6 < str.length
|
|
|
|
// case: /**/
|
|
// > A slash followed by two consecutive asterisks then a slash matches
|
|
// > zero or more directories.
|
|
// > For example, "a/**/b" matches "a/b", "a/x/b", "a/x/y/b" and so on.
|
|
// '/**/'
|
|
? '(?:\\/[^\\/]+)*'
|
|
|
|
// case: /**
|
|
// > A trailing `"/**"` matches everything inside.
|
|
|
|
// #21: everything inside but it should not include the current folder
|
|
: '\\/.+'
|
|
],
|
|
|
|
// intermediate wildcards
|
|
[
|
|
// Never replace escaped '*'
|
|
// ignore rule '\*' will match the path '*'
|
|
|
|
// 'abc.*/' -> go
|
|
// 'abc.*' -> skip this rule
|
|
/(^|[^\\]+)\\\*(?=.+)/g,
|
|
|
|
// '*.js' matches '.js'
|
|
// '*.js' doesn't match 'abc'
|
|
(match, p1) => `${p1}[^\\/]*`
|
|
],
|
|
|
|
// trailing wildcard
|
|
[
|
|
/(\^|\\\/)?\\\*$/,
|
|
(match, p1) => {
|
|
const prefix = p1
|
|
// '\^':
|
|
// '/*' does not match ''
|
|
// '/*' does not match everything
|
|
|
|
// '\\\/':
|
|
// 'abc/*' does not match 'abc/'
|
|
? `${p1}[^/]+`
|
|
|
|
// 'a*' matches 'a'
|
|
// 'a*' matches 'aa'
|
|
: '[^/]*'
|
|
|
|
return `${prefix}(?=$|\\/$)`
|
|
}
|
|
],
|
|
|
|
[
|
|
// unescape
|
|
/\\\\\\/g,
|
|
() => '\\'
|
|
]
|
|
]
|
|
|
|
const POSITIVE_REPLACERS = [
|
|
...DEFAULT_REPLACER_PREFIX,
|
|
|
|
// 'f'
|
|
// matches
|
|
// - /f(end)
|
|
// - /f/
|
|
// - (start)f(end)
|
|
// - (start)f/
|
|
// doesn't match
|
|
// - oof
|
|
// - foo
|
|
// pseudo:
|
|
// -> (^|/)f(/|$)
|
|
|
|
// ending
|
|
[
|
|
// 'js' will not match 'js.'
|
|
// 'ab' will not match 'abc'
|
|
/(?:[^*/])$/,
|
|
|
|
// 'js*' will not match 'a.js'
|
|
// 'js/' will not match 'a.js'
|
|
// 'js' will match 'a.js' and 'a.js/'
|
|
match => `${match}(?=$|\\/)`
|
|
],
|
|
|
|
...DEFAULT_REPLACER_SUFFIX
|
|
]
|
|
|
|
const NEGATIVE_REPLACERS = [
|
|
...DEFAULT_REPLACER_PREFIX,
|
|
|
|
// #24, #38
|
|
// The MISSING rule of [gitignore docs](https://git-scm.com/docs/gitignore)
|
|
// A negative pattern without a trailing wildcard should not
|
|
// re-include the things inside that directory.
|
|
|
|
// eg:
|
|
// ['node_modules/*', '!node_modules']
|
|
// should ignore `node_modules/a.js`
|
|
[
|
|
/(?:[^*])$/,
|
|
match => `${match}(?=$|\\/$)`
|
|
],
|
|
|
|
...DEFAULT_REPLACER_SUFFIX
|
|
]
|
|
|
|
// A simple cache, because an ignore rule only has only one certain meaning
|
|
const cache = Object.create(null)
|
|
|
|
// @param {pattern}
|
|
const make_regex = (pattern, negative, ignorecase) => {
|
|
const r = cache[pattern]
|
|
if (r) {
|
|
return r
|
|
}
|
|
|
|
const replacers = negative
|
|
? NEGATIVE_REPLACERS
|
|
: POSITIVE_REPLACERS
|
|
|
|
const source = replacers.reduce(
|
|
(prev, current) => prev.replace(current[0], current[1].bind(pattern)),
|
|
pattern
|
|
)
|
|
|
|
return cache[pattern] = ignorecase
|
|
? new RegExp(source, 'i')
|
|
: new RegExp(source)
|
|
}
|
|
|
|
// > A blank line matches no files, so it can serve as a separator for readability.
|
|
const checkPattern = pattern => pattern
|
|
&& typeof pattern === 'string'
|
|
&& !REGEX_BLANK_LINE.test(pattern)
|
|
|
|
// > A line starting with # serves as a comment.
|
|
&& pattern.indexOf('#') !== 0
|
|
|
|
const createRule = (pattern, ignorecase) => {
|
|
const origin = pattern
|
|
let negative = false
|
|
|
|
// > An optional prefix "!" which negates the pattern;
|
|
if (pattern.indexOf('!') === 0) {
|
|
negative = true
|
|
pattern = pattern.substr(1)
|
|
}
|
|
|
|
pattern = pattern
|
|
// > Put a backslash ("\") in front of the first "!" for patterns that
|
|
// > begin with a literal "!", for example, `"\!important!.txt"`.
|
|
.replace(REGEX_LEADING_EXCAPED_EXCLAMATION, '!')
|
|
// > Put a backslash ("\") in front of the first hash for patterns that
|
|
// > begin with a hash.
|
|
.replace(REGEX_LEADING_EXCAPED_HASH, '#')
|
|
|
|
const regex = make_regex(pattern, negative, ignorecase)
|
|
|
|
return {
|
|
origin,
|
|
pattern,
|
|
negative,
|
|
regex
|
|
}
|
|
}
|
|
|
|
class IgnoreBase {
|
|
constructor ({
|
|
ignorecase = true
|
|
} = {}) {
|
|
this._rules = []
|
|
this._ignorecase = ignorecase
|
|
define(this, KEY_IGNORE, true)
|
|
this._initCache()
|
|
}
|
|
|
|
_initCache () {
|
|
this._cache = Object.create(null)
|
|
}
|
|
|
|
// @param {Array.<string>|string|Ignore} pattern
|
|
add (pattern) {
|
|
this._added = false
|
|
|
|
if (typeof pattern === 'string') {
|
|
pattern = pattern.split(/\r?\n/g)
|
|
}
|
|
|
|
make_array(pattern).forEach(this._addPattern, this)
|
|
|
|
// Some rules have just added to the ignore,
|
|
// making the behavior changed.
|
|
if (this._added) {
|
|
this._initCache()
|
|
}
|
|
|
|
return this
|
|
}
|
|
|
|
// legacy
|
|
addPattern (pattern) {
|
|
return this.add(pattern)
|
|
}
|
|
|
|
_addPattern (pattern) {
|
|
// #32
|
|
if (pattern && pattern[KEY_IGNORE]) {
|
|
this._rules = this._rules.concat(pattern._rules)
|
|
this._added = true
|
|
return
|
|
}
|
|
|
|
if (checkPattern(pattern)) {
|
|
const rule = createRule(pattern, this._ignorecase)
|
|
this._added = true
|
|
this._rules.push(rule)
|
|
}
|
|
}
|
|
|
|
filter (paths) {
|
|
return make_array(paths).filter(path => this._filter(path))
|
|
}
|
|
|
|
createFilter () {
|
|
return path => this._filter(path)
|
|
}
|
|
|
|
ignores (path) {
|
|
return !this._filter(path)
|
|
}
|
|
|
|
// @returns `Boolean` true if the `path` is NOT ignored
|
|
_filter (path, slices) {
|
|
if (!path) {
|
|
return false
|
|
}
|
|
|
|
if (path in this._cache) {
|
|
return this._cache[path]
|
|
}
|
|
|
|
if (!slices) {
|
|
// path/to/a.js
|
|
// ['path', 'to', 'a.js']
|
|
slices = path.split(SLASH)
|
|
}
|
|
|
|
slices.pop()
|
|
|
|
return this._cache[path] = slices.length
|
|
// > It is not possible to re-include a file if a parent directory of
|
|
// > that file is excluded.
|
|
// If the path contains a parent directory, check the parent first
|
|
? this._filter(slices.join(SLASH) + SLASH, slices)
|
|
&& this._test(path)
|
|
|
|
// Or only test the path
|
|
: this._test(path)
|
|
}
|
|
|
|
// @returns {Boolean} true if a file is NOT ignored
|
|
_test (path) {
|
|
// Explicitly define variable type by setting matched to `0`
|
|
let matched = 0
|
|
|
|
this._rules.forEach(rule => {
|
|
// if matched = true, then we only test negative rules
|
|
// if matched = false, then we test non-negative rules
|
|
if (!(matched ^ rule.negative)) {
|
|
matched = rule.negative ^ rule.regex.test(path)
|
|
}
|
|
})
|
|
|
|
return !matched
|
|
}
|
|
}
|
|
|
|
// Windows
|
|
// --------------------------------------------------------------
|
|
/* istanbul ignore if */
|
|
if (
|
|
// Detect `process` so that it can run in browsers.
|
|
typeof process !== 'undefined'
|
|
&& (
|
|
process.env && process.env.IGNORE_TEST_WIN32
|
|
|| process.platform === 'win32'
|
|
)
|
|
) {
|
|
const filter = IgnoreBase.prototype._filter
|
|
|
|
/* eslint no-control-regex: "off" */
|
|
const make_posix = str => /^\\\\\?\\/.test(str)
|
|
|| /[^\x00-\x80]+/.test(str)
|
|
? str
|
|
: str.replace(/\\/g, '/')
|
|
|
|
IgnoreBase.prototype._filter = function filterWin32 (path, slices) {
|
|
path = make_posix(path)
|
|
return filter.call(this, path, slices)
|
|
}
|
|
}
|
|
|
|
module.exports = options => new IgnoreBase(options)
|