| 1 | var fs = require('fs');
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| 2 | var execFile = require('child_process').execFile;
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| 3 |
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| 4 |
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| 5 | /**
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| 6 | * Walk a directory in a paralell loop.
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| 7 | * http://stackoverflow.com/questions/5827612/node-js-fs-readdir-recursive-directory-search
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| 8 | *
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| 9 | * Usage:
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| 10 | * > walk('./path/to/directory', callbackFunction);
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| 11 | *
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| 12 | */
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| 13 | function walk(dir, done) {
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| 14 | var results = [];
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| 15 | fs.readdir(dir, function(err, list) {
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| 16 | if (err) return done(err);
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| 17 | var pending = list.length;
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| 18 | if (!pending) return done(null, results);
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| 19 | list.forEach(function(file) {
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| 20 | file = dir + '/' + file;
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| 21 | fs.stat(file, function(err, stat) {
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| 22 | if (stat && stat.isDirectory()) {
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| 23 | walk(file, function(err, res) {
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| 24 | results = results.concat(res);
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| 25 | if (!--pending) done(null, results);
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| 26 | });
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| 27 | } else {
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| 28 | results.push(file);
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| 29 | if (!--pending) done(null, results);
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| 30 | }
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| 31 | });
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| 32 | });
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| 33 | });
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| 34 | }
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| 35 |
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| 36 |
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| 37 | /**
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| 38 | * Walk a directory in a serial loop.
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| 39 | * http://stackoverflow.com/questions/5827612/node-js-fs-readdir-recursive-directory-search
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| 40 | *
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| 41 | * Usage:
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| 42 | * > walk('./path/to/directory', callbackFunction);
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| 43 | *
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| 44 | */
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| 45 | function walkSerial(dir, done) {
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| 46 | var results = [];
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| 47 | fs.readdir(dir, function(err, list) {
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| 48 | if (err) return done(err);
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| 49 | var i = 0;
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| 50 | (function next() {
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| 51 | var file = list[i++];
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| 52 | if (!file) return done(null, results);
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| 53 | file = dir + '/' + file;
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| 54 | fs.stat(file, function(err, stat) {
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| 55 | if (stat && stat.isDirectory()) {
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| 56 | walk(file, function(err, res) {
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| 57 | results = results.concat(res);
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| 58 | next();
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| 59 | });
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| 60 | } else {
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| 61 | results.push(file);
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| 62 | next();
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| 63 | }
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| 64 | });
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| 65 | })();
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| 66 | });
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| 67 | }
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| 68 |
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| 69 |
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| 70 | /**
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| 71 | * Wrapper for the UNIX find function. Possibly faster than the walk()
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| 72 | * function above, particularly when multiple similar find commands are called
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| 73 | * due to the find tool's built-in caching.
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| 74 | * http://stackoverflow.com/questions/5827612/node-js-fs-readdir-recursive-directory-search
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| 75 | *
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| 76 | * Usage:
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| 77 | * > find('./path/to/directory', callbackFunction);
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| 78 | *
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| 79 | */
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| 80 | function find(path, callback) {
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| 81 | execFile('find', [path], function(err, stdout, stderr) {
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| 82 | var fileList = stdout.split('\n');
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| 83 | callback(err, fileList);
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| 84 | });
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| 85 | }
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| 86 |
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| 87 |
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| 88 | exports.walk = walk;
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| 89 | exports.find = find;
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