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2020-11-01 22:46:04 +00:00

152 lines
4.1 KiB
JavaScript

'use strict';
/**
* Contains `lookupFiles`, which takes some globs/dirs/options and returns a list of files.
* @module
* @private
*/
var fs = require('fs');
var path = require('path');
var glob = require('glob');
var {format} = require('util');
var errors = require('../errors');
var createNoFilesMatchPatternError = errors.createNoFilesMatchPatternError;
var createMissingArgumentError = errors.createMissingArgumentError;
var {sQuote, dQuote} = require('../utils');
/**
* Determines if pathname would be a "hidden" file (or directory) on UN*X.
*
* @description
* On UN*X, pathnames beginning with a full stop (aka dot) are hidden during
* typical usage. Dotfiles, plain-text configuration files, are prime examples.
*
* @see {@link http://xahlee.info/UnixResource_dir/writ/unix_origin_of_dot_filename.html|Origin of Dot File Names}
*
* @private
* @param {string} pathname - Pathname to check for match.
* @return {boolean} whether pathname would be considered a hidden file.
* @example
* isHiddenOnUnix('.profile'); // => true
*/
function isHiddenOnUnix(pathname) {
return path.basename(pathname)[0] === '.';
}
/**
* Determines if pathname has a matching file extension.
*
* @private
* @param {string} pathname - Pathname to check for match.
* @param {string[]} exts - List of file extensions (sans period).
* @return {boolean} whether file extension matches.
* @example
* hasMatchingExtname('foo.html', ['js', 'css']); // => false
*/
function hasMatchingExtname(pathname, exts) {
var suffix = path.extname(pathname).slice(1);
return exts.some(function(element) {
return suffix === element;
});
}
/**
* Lookup file names at the given `path`.
*
* @description
* Filenames are returned in _traversal_ order by the OS/filesystem.
* **Make no assumption that the names will be sorted in any fashion.**
*
* @public
* @alias module:lib/cli.lookupFiles
* @param {string} filepath - Base path to start searching from.
* @param {string[]} [extensions=[]] - File extensions to look for.
* @param {boolean} [recursive=false] - Whether to recurse into subdirectories.
* @return {string[]} An array of paths.
* @throws {Error} if no files match pattern.
* @throws {TypeError} if `filepath` is directory and `extensions` not provided.
*/
module.exports = function lookupFiles(filepath, extensions, recursive) {
extensions = extensions || [];
recursive = recursive || false;
var files = [];
var stat;
if (!fs.existsSync(filepath)) {
var pattern;
if (glob.hasMagic(filepath)) {
// Handle glob as is without extensions
pattern = filepath;
} else {
// glob pattern e.g. 'filepath+(.js|.ts)'
var strExtensions = extensions
.map(function(v) {
return '.' + v;
})
.join('|');
pattern = filepath + '+(' + strExtensions + ')';
}
files = glob.sync(pattern, {nodir: true});
if (!files.length) {
throw createNoFilesMatchPatternError(
'Cannot find any files matching pattern ' + dQuote(filepath),
filepath
);
}
return files;
}
// Handle file
try {
stat = fs.statSync(filepath);
if (stat.isFile()) {
return filepath;
}
} catch (err) {
// ignore error
return;
}
// Handle directory
fs.readdirSync(filepath).forEach(function(dirent) {
var pathname = path.join(filepath, dirent);
var stat;
try {
stat = fs.statSync(pathname);
if (stat.isDirectory()) {
if (recursive) {
files = files.concat(lookupFiles(pathname, extensions, recursive));
}
return;
}
} catch (err) {
// ignore error
return;
}
if (!extensions.length) {
throw createMissingArgumentError(
format(
'Argument %s required when argument %s is a directory',
sQuote('extensions'),
sQuote('filepath')
),
'extensions',
'array'
);
}
if (
!stat.isFile() ||
!hasMatchingExtname(pathname, extensions) ||
isHiddenOnUnix(pathname)
) {
return;
}
files.push(pathname);
});
return files;
};