84 lines
2.5 KiB
JavaScript
84 lines
2.5 KiB
JavaScript
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const fs = require('fs');
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const globrex = require('globrex');
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const { promisify } = require('util');
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const globalyzer = require('globalyzer');
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const { join, resolve, relative } = require('path');
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const isHidden = /(^|[\\\/])\.[^\\\/\.]/g;
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const readdir = promisify(fs.readdir);
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const stat = promisify(fs.stat);
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let CACHE = {};
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async function walk(output, prefix, lexer, opts, dirname='', level=0) {
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const rgx = lexer.segments[level];
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const dir = resolve(opts.cwd, prefix, dirname);
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const files = await readdir(dir);
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const { dot, filesOnly } = opts;
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let i=0, len=files.length, file;
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let fullpath, relpath, stats, isMatch;
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for (; i < len; i++) {
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fullpath = join(dir, file=files[i]);
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relpath = dirname ? join(dirname, file) : file;
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if (!dot && isHidden.test(relpath)) continue;
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isMatch = lexer.regex.test(relpath);
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if ((stats=CACHE[relpath]) === void 0) {
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CACHE[relpath] = stats = fs.lstatSync(fullpath);
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}
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if (!stats.isDirectory()) {
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isMatch && output.push(relative(opts.cwd, fullpath));
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continue;
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}
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if (rgx && !rgx.test(file)) continue;
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!filesOnly && isMatch && output.push(join(prefix, relpath));
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await walk(output, prefix, lexer, opts, relpath, rgx && rgx.toString() !== lexer.globstar && level + 1);
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}
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}
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/**
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* Find files using bash-like globbing.
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* All paths are normalized compared to node-glob.
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* @param {String} str Glob string
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* @param {String} [options.cwd='.'] Current working directory
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* @param {Boolean} [options.dot=false] Include dotfile matches
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* @param {Boolean} [options.absolute=false] Return absolute paths
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* @param {Boolean} [options.filesOnly=false] Do not include folders if true
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* @param {Boolean} [options.flush=false] Reset cache object
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* @returns {Array} array containing matching files
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*/
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module.exports = async function (str, opts={}) {
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if (!str) return [];
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let glob = globalyzer(str);
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opts.cwd = opts.cwd || '.';
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if (!glob.isGlob) {
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try {
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let resolved = resolve(opts.cwd, str);
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let dirent = await stat(resolved);
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if (opts.filesOnly && !dirent.isFile()) return [];
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return opts.absolute ? [resolved] : [str];
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} catch (err) {
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if (err.code != 'ENOENT') throw err;
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return [];
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}
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}
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if (opts.flush) CACHE = {};
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let matches = [];
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const { path } = globrex(glob.glob, { filepath:true, globstar:true, extended:true });
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path.globstar = path.globstar.toString();
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await walk(matches, glob.base, path, opts, '.', 0);
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return opts.absolute ? matches.map(x => resolve(opts.cwd, x)) : matches;
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};
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