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128 lines
3.1 KiB
128 lines
3.1 KiB
'use strict';
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const arrayUnion = require('array-union');
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const glob = require('glob');
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const fastGlob = require('fast-glob');
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const dirGlob = require('dir-glob');
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const gitignore = require('./gitignore');
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const DEFAULT_FILTER = () => false;
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const isNegative = pattern => pattern[0] === '!';
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const assertPatternsInput = patterns => {
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if (!patterns.every(x => typeof x === 'string')) {
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throw new TypeError('Patterns must be a string or an array of strings');
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}
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};
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const generateGlobTasks = (patterns, taskOpts) => {
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patterns = [].concat(patterns);
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assertPatternsInput(patterns);
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const globTasks = [];
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taskOpts = Object.assign({
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ignore: [],
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expandDirectories: true
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}, taskOpts);
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patterns.forEach((pattern, i) => {
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if (isNegative(pattern)) {
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return;
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}
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const ignore = patterns
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.slice(i)
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.filter(isNegative)
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.map(pattern => pattern.slice(1));
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const opts = Object.assign({}, taskOpts, {
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ignore: taskOpts.ignore.concat(ignore)
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});
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globTasks.push({pattern, opts});
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});
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return globTasks;
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};
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const globDirs = (task, fn) => {
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let opts = {cwd: task.opts.cwd};
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if (Array.isArray(task.opts.expandDirectories)) {
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opts = Object.assign(opts, {files: task.opts.expandDirectories});
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} else if (typeof task.opts.expandDirectories === 'object') {
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opts = Object.assign(opts, task.opts.expandDirectories);
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}
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return fn(task.pattern, opts);
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};
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const getPattern = (task, fn) => task.opts.expandDirectories ? globDirs(task, fn) : [task.pattern];
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module.exports = (patterns, opts) => {
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let globTasks;
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try {
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globTasks = generateGlobTasks(patterns, opts);
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} catch (err) {
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return Promise.reject(err);
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}
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const getTasks = Promise.all(globTasks.map(task => Promise.resolve(getPattern(task, dirGlob))
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.then(globs => Promise.all(globs.map(glob => ({
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pattern: glob,
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opts: task.opts
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}))))
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))
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.then(tasks => arrayUnion.apply(null, tasks));
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const getFilter = () => {
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return Promise.resolve(
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opts && opts.gitignore ?
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gitignore({cwd: opts.cwd, ignore: opts.ignore}) :
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DEFAULT_FILTER
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);
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};
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return getFilter()
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.then(filter => {
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return getTasks
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.then(tasks => Promise.all(tasks.map(task => fastGlob(task.pattern, task.opts))))
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.then(paths => arrayUnion.apply(null, paths))
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.then(paths => paths.filter(p => !filter(p)));
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});
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};
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module.exports.sync = (patterns, opts) => {
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const globTasks = generateGlobTasks(patterns, opts);
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const getFilter = () => {
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return opts && opts.gitignore ?
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gitignore.sync({cwd: opts.cwd, ignore: opts.ignore}) :
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DEFAULT_FILTER;
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};
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const tasks = globTasks.reduce((tasks, task) => {
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const newTask = getPattern(task, dirGlob.sync).map(glob => ({
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pattern: glob,
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opts: task.opts
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}));
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return tasks.concat(newTask);
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}, []);
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const filter = getFilter();
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return tasks.reduce(
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(matches, task) => arrayUnion(matches, fastGlob.sync(task.pattern, task.opts)),
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[]
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).filter(p => !filter(p));
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};
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module.exports.generateGlobTasks = generateGlobTasks;
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module.exports.hasMagic = (patterns, opts) => []
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.concat(patterns)
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.some(pattern => glob.hasMagic(pattern, opts));
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module.exports.gitignore = gitignore;
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