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index.js
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index.js
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'use strict';
const fs = require('fs');
const arrayUnion = require('array-union');
const merge2 = require('merge2');
const glob = require('glob');
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(x => typeof x === 'string')) {
throw new TypeError('Patterns must be a string or an array of strings');
}
};
const checkCwdOption = options => {
if (options && options.cwd && !fs.statSync(options.cwd).isDirectory()) {
throw new Error('The `cwd` option must be a path to a directory');
}
};
const generateGlobTasks = (patterns, taskOptions) => {
patterns = arrayUnion([].concat(patterns));
assertPatternsInput(patterns);
checkCwdOption(taskOptions);
const globTasks = [];
taskOptions = Object.assign({
ignore: [],
expandDirectories: true
}, taskOptions);
patterns.forEach((pattern, i) => {
if (isNegative(pattern)) {
return;
}
const ignore = patterns
.slice(i)
.filter(isNegative)
.map(pattern => pattern.slice(1));
const options = Object.assign({}, 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 = Object.assign(options, {files: task.options.expandDirectories});
} else if (typeof task.options.expandDirectories === 'object') {
options = Object.assign(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
};
};
const globby = (patterns, options) => {
let globTasks;
try {
globTasks = generateGlobTasks(patterns, options);
} catch (error) {
return Promise.reject(error);
}
const getTasks = Promise.all(globTasks.map(task => Promise.resolve(getPattern(task, dirGlob))
.then(globs => Promise.all(globs.map(globToTask(task))))
))
.then(tasks => arrayUnion(...tasks));
const getFilter = () => {
return Promise.resolve(
options && options.gitignore ?
gitignore({cwd: options.cwd, ignore: options.ignore}) :
DEFAULT_FILTER
);
};
return getFilter()
.then(filter => {
return getTasks
.then(tasks => Promise.all(tasks.map(task => fastGlob(task.pattern, task.options))))
.then(paths => arrayUnion(...paths))
.then(paths => paths.filter(p => !filter(p)));
});
};
module.exports = globby;
// TODO: Remove this for the next major release
module.exports.default = globby;
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(p => !filter(p));
};
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 => glob.hasMagic(pattern, options));
module.exports.gitignore = gitignore;