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'use strict';
const fs = require('fs');
const arrayUnion = require('array-union');
const merge2 = require('merge2');
const fastGlob = require('fast-glob');
const dirGlob = require('dir-glob');
const gitignore = require('./gitignore');
const {FilterStream, UniqueStream} = require('./stream-utils');
const DEFAULT_FILTER = () => false;
const isNegative = pattern => pattern[0] === '!';
const assertPatternsInput = patterns => {
if (!patterns.every(pattern => typeof pattern === 'string')) {
throw new TypeError('Patterns must be a string or an array of strings');
}
};
const checkCwdOption = (options = {}) => {
if (!options.cwd) {
return;
}
let stat;
try {
stat = fs.statSync(options.cwd);
} catch (_) {
return;
}
if (!stat.isDirectory()) {
throw new Error('The `cwd` option must be a path to a directory');
}
};
const getPathString = p => p.stats instanceof fs.Stats ? p.path : p;
const generateGlobTasks = (patterns, taskOptions) => {
patterns = arrayUnion([].concat(patterns));
assertPatternsInput(patterns);
checkCwdOption(taskOptions);
const globTasks = [];
taskOptions = {
ignore: [],
expandDirectories: true,
...taskOptions
};
for (const [index, pattern] of patterns.entries()) {
if (isNegative(pattern)) {
continue;
}
const ignore = patterns
.slice(index)
.filter(isNegative)
.map(pattern => pattern.slice(1));
const options = {
...taskOptions,
ignore: taskOptions.ignore.concat(ignore)
};
globTasks.push({pattern, options});
}
return globTasks;
};
const globDirs = (task, fn) => {
let options = {};
if (task.options.cwd) {
options.cwd = task.options.cwd;
}
if (Array.isArray(task.options.expandDirectories)) {
options = {
...options,
files: task.options.expandDirectories
};
} else if (typeof task.options.expandDirectories === 'object') {
options = {
...options,
...task.options.expandDirectories
};
}
return fn(task.pattern, options);
};
const getPattern = (task, fn) => task.options.expandDirectories ? globDirs(task, fn) : [task.pattern];
const getFilterSync = options => {
return options && options.gitignore ?
gitignore.sync({cwd: options.cwd, ignore: options.ignore}) :
DEFAULT_FILTER;
};
const globToTask = task => glob => {
const {options} = task;
if (options.ignore && Array.isArray(options.ignore) && options.expandDirectories) {
options.ignore = dirGlob.sync(options.ignore);
}
return {
pattern: glob,
options
};
};
module.exports = async (patterns, options) => {
const globTasks = generateGlobTasks(patterns, options);
const getFilter = async () => {
return options && options.gitignore ?
gitignore({cwd: options.cwd, ignore: options.ignore}) :
DEFAULT_FILTER;
};
const getTasks = async () => {
const tasks = await Promise.all(globTasks.map(async task => {
const globs = await getPattern(task, dirGlob);
return Promise.all(globs.map(globToTask(task)));
}));
return arrayUnion(...tasks);
};
const [filter, tasks] = await Promise.all([getFilter(), getTasks()]);
const paths = await Promise.all(tasks.map(task => fastGlob(task.pattern, task.options)));
return arrayUnion(...paths).filter(path_ => !filter(getPathString(path_)));
};
module.exports.sync = (patterns, options) => {
const globTasks = generateGlobTasks(patterns, options);
const tasks = globTasks.reduce((tasks, task) => {
const newTask = getPattern(task, dirGlob.sync).map(globToTask(task));
return tasks.concat(newTask);
}, []);
const filter = getFilterSync(options);
return tasks.reduce(
(matches, task) => arrayUnion(matches, fastGlob.sync(task.pattern, task.options)),
[]
).filter(path_ => !filter(path_));
};
module.exports.stream = (patterns, options) => {
const globTasks = generateGlobTasks(patterns, options);
const tasks = globTasks.reduce((tasks, task) => {
const newTask = getPattern(task, dirGlob.sync).map(globToTask(task));
return tasks.concat(newTask);
}, []);
const filter = getFilterSync(options);
const filterStream = new FilterStream(p => !filter(p));
const uniqueStream = new UniqueStream();
return merge2(tasks.map(task => fastGlob.stream(task.pattern, task.options)))
.pipe(filterStream)
.pipe(uniqueStream);
};
module.exports.generateGlobTasks = generateGlobTasks;
module.exports.hasMagic = (patterns, options) => []
.concat(patterns)
.some(pattern => fastGlob.isDynamicPattern(pattern, options));
module.exports.gitignore = gitignore;
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