69 lines
1.8 KiB
JavaScript
69 lines
1.8 KiB
JavaScript
'use strict';
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const fs = require('fs');
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const mm = require('micromatch');
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const matchers = [];
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/**
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* Add glob patterns to ignore matched files and folders.
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* Creates glob patterns to approximate gitignore patterns.
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* @param {String} val - the glob or gitignore-style pattern to ignore
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* @see {@linkplain https://git-scm.com/docs/gitignore#_pattern_format}
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*/
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function addIgnorePattern(val) {
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if (val && typeof val === 'string' && val[0] !== '#') {
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let pattern = val;
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if (pattern.indexOf('/') === -1) {
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matchers.push('**/' + pattern);
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} else if (pattern[pattern.length-1] === '/') {
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matchers.push('**/' + pattern + '**');
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matchers.push(pattern + '**');
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}
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matchers.push(pattern);
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}
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}
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/**
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* Adds ignore patterns directly from function input
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* @param {String|Array<String>} input - the ignore patterns
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*/
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function addIgnoreFromInput(input) {
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let patterns = [];
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if (input) {
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patterns = patterns.concat(input);
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}
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patterns.forEach(addIgnorePattern);
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}
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/**
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* Adds ignore patterns by reading files
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* @param {String|Array<String>} input - the paths to the ignore config files
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*/
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function addIgnoreFromFile(input) {
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let lines = [];
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let files = [];
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if (input) {
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files = files.concat(input);
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}
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files.forEach(function(config) {
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const stats = fs.statSync(config);
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if (stats.isFile()) {
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const content = fs.readFileSync(config, 'utf8');
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lines = lines.concat(content.split(/\r?\n/));
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}
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});
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lines.forEach(addIgnorePattern);
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}
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function shouldIgnore(path) {
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const matched = matchers.length ? mm.isMatch(path, matchers, { dot:true }) : false;
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return matched;
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}
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exports.add = addIgnoreFromInput;
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exports.addFromFile = addIgnoreFromFile;
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exports.shouldIgnore = shouldIgnore;
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