Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
epidemian
GitHub Repository: epidemian/eslint-plugin-import
Path: blob/main/utils/ignore.js
828 views
1
'use strict';
2
exports.__esModule = true;
3
4
const extname = require('path').extname;
5
6
const log = require('debug')('eslint-plugin-import:utils:ignore');
7
8
// one-shot memoized
9
let cachedSet; let lastSettings;
10
function validExtensions(context) {
11
if (cachedSet && context.settings === lastSettings) {
12
return cachedSet;
13
}
14
15
lastSettings = context.settings;
16
cachedSet = makeValidExtensionSet(context.settings);
17
return cachedSet;
18
}
19
20
function makeValidExtensionSet(settings) {
21
// start with explicit JS-parsed extensions
22
const exts = new Set(settings['import/extensions'] || [ '.js' ]);
23
24
// all alternate parser extensions are also valid
25
if ('import/parsers' in settings) {
26
for (const parser in settings['import/parsers']) {
27
const parserSettings = settings['import/parsers'][parser];
28
if (!Array.isArray(parserSettings)) {
29
throw new TypeError('"settings" for ' + parser + ' must be an array');
30
}
31
parserSettings.forEach(ext => exts.add(ext));
32
}
33
}
34
35
return exts;
36
}
37
exports.getFileExtensions = makeValidExtensionSet;
38
39
exports.default = function ignore(path, context) {
40
// check extension whitelist first (cheap)
41
if (!hasValidExtension(path, context)) return true;
42
43
if (!('import/ignore' in context.settings)) return false;
44
const ignoreStrings = context.settings['import/ignore'];
45
46
for (let i = 0; i < ignoreStrings.length; i++) {
47
const regex = new RegExp(ignoreStrings[i]);
48
if (regex.test(path)) {
49
log(`ignoring ${path}, matched pattern /${ignoreStrings[i]}/`);
50
return true;
51
}
52
}
53
54
return false;
55
};
56
57
function hasValidExtension(path, context) {
58
return validExtensions(context).has(extname(path));
59
}
60
exports.hasValidExtension = hasValidExtension;
61
62