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Diffstat (limited to 'node_modules/readdirp/readdirp.js')
| -rw-r--r-- | node_modules/readdirp/readdirp.js | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/node_modules/readdirp/readdirp.js b/node_modules/readdirp/readdirp.js new file mode 100644 index 0000000..863bd17 --- /dev/null +++ b/node_modules/readdirp/readdirp.js @@ -0,0 +1,294 @@ +'use strict'; + +var fs = require('graceful-fs') + , path = require('path') + , micromatch = require('micromatch').isMatch + , toString = Object.prototype.toString + ; + + +// Standard helpers +function isFunction (obj) { + return toString.call(obj) === '[object Function]'; +} + +function isString (obj) { + return toString.call(obj) === '[object String]'; +} + +function isUndefined (obj) { + return obj === void 0; +} + +/** + * Main function which ends up calling readdirRec and reads all files and directories in given root recursively. + * @param { Object } opts Options to specify root (start directory), filters and recursion depth + * @param { function } callback1 When callback2 is given calls back for each processed file - function (fileInfo) { ... }, + * when callback2 is not given, it behaves like explained in callback2 + * @param { function } callback2 Calls back once all files have been processed with an array of errors and file infos + * function (err, fileInfos) { ... } + */ +function readdir(opts, callback1, callback2) { + var stream + , handleError + , handleFatalError + , errors = [] + , readdirResult = { + directories: [] + , files: [] + } + , fileProcessed + , allProcessed + , realRoot + , aborted = false + , paused = false + ; + + // If no callbacks were given we will use a streaming interface + if (isUndefined(callback1)) { + var api = require('./stream-api')(); + stream = api.stream; + callback1 = api.processEntry; + callback2 = api.done; + handleError = api.handleError; + handleFatalError = api.handleFatalError; + + stream.on('close', function () { aborted = true; }); + stream.on('pause', function () { paused = true; }); + stream.on('resume', function () { paused = false; }); + } else { + handleError = function (err) { errors.push(err); }; + handleFatalError = function (err) { + handleError(err); + allProcessed(errors, null); + }; + } + + if (isUndefined(opts)){ + handleFatalError(new Error ( + 'Need to pass at least one argument: opts! \n' + + 'https://github.com/paulmillr/readdirp#options' + ) + ); + return stream; + } + + opts.root = opts.root || '.'; + opts.fileFilter = opts.fileFilter || function() { return true; }; + opts.directoryFilter = opts.directoryFilter || function() { return true; }; + opts.depth = typeof opts.depth === 'undefined' ? 999999999 : opts.depth; + opts.entryType = opts.entryType || 'files'; + + var statfn = opts.lstat === true ? fs.lstat.bind(fs) : fs.stat.bind(fs); + + if (isUndefined(callback2)) { + fileProcessed = function() { }; + allProcessed = callback1; + } else { + fileProcessed = callback1; + allProcessed = callback2; + } + + function normalizeFilter (filter) { + + if (isUndefined(filter)) return undefined; + + function isNegated (filters) { + + function negated(f) { + return f.indexOf('!') === 0; + } + + var some = filters.some(negated); + if (!some) { + return false; + } else { + if (filters.every(negated)) { + return true; + } else { + // if we detect illegal filters, bail out immediately + throw new Error( + 'Cannot mix negated with non negated glob filters: ' + filters + '\n' + + 'https://github.com/paulmillr/readdirp#filters' + ); + } + } + } + + // Turn all filters into a function + if (isFunction(filter)) { + + return filter; + + } else if (isString(filter)) { + + return function (entryInfo) { + return micromatch(entryInfo.name, filter.trim()); + }; + + } else if (filter && Array.isArray(filter)) { + + if (filter) filter = filter.map(function (f) { + return f.trim(); + }); + + return isNegated(filter) ? + // use AND to concat multiple negated filters + function (entryInfo) { + return filter.every(function (f) { + return micromatch(entryInfo.name, f); + }); + } + : + // use OR to concat multiple inclusive filters + function (entryInfo) { + return filter.some(function (f) { + return micromatch(entryInfo.name, f); + }); + }; + } + } + + function processDir(currentDir, entries, callProcessed) { + if (aborted) return; + var total = entries.length + , processed = 0 + , entryInfos = [] + ; + + fs.realpath(currentDir, function(err, realCurrentDir) { + if (aborted) return; + if (err) { + handleError(err); + callProcessed(entryInfos); + return; + } + + var relDir = path.relative(realRoot, realCurrentDir); + + if (entries.length === 0) { + callProcessed([]); + } else { + entries.forEach(function (entry) { + + var fullPath = path.join(realCurrentDir, entry) + , relPath = path.join(relDir, entry); + + statfn(fullPath, function (err, stat) { + if (err) { + handleError(err); + } else { + entryInfos.push({ + name : entry + , path : relPath // relative to root + , fullPath : fullPath + + , parentDir : relDir // relative to root + , fullParentDir : realCurrentDir + + , stat : stat + }); + } + processed++; + if (processed === total) callProcessed(entryInfos); + }); + }); + } + }); + } + + function readdirRec(currentDir, depth, callCurrentDirProcessed) { + var args = arguments; + if (aborted) return; + if (paused) { + setImmediate(function () { + readdirRec.apply(null, args); + }) + return; + } + + fs.readdir(currentDir, function (err, entries) { + if (err) { + handleError(err); + callCurrentDirProcessed(); + return; + } + + processDir(currentDir, entries, function(entryInfos) { + + var subdirs = entryInfos + .filter(function (ei) { return ei.stat.isDirectory() && opts.directoryFilter(ei); }); + + subdirs.forEach(function (di) { + if(opts.entryType === 'directories' || opts.entryType === 'both' || opts.entryType === 'all') { + fileProcessed(di); + } + readdirResult.directories.push(di); + }); + + entryInfos + .filter(function(ei) { + var isCorrectType = opts.entryType === 'all' ? + !ei.stat.isDirectory() : ei.stat.isFile() || ei.stat.isSymbolicLink(); + return isCorrectType && opts.fileFilter(ei); + }) + .forEach(function (fi) { + if(opts.entryType === 'files' || opts.entryType === 'both' || opts.entryType === 'all') { + fileProcessed(fi); + } + readdirResult.files.push(fi); + }); + + var pendingSubdirs = subdirs.length; + + // Be done if no more subfolders exist or we reached the maximum desired depth + if(pendingSubdirs === 0 || depth === opts.depth) { + callCurrentDirProcessed(); + } else { + // recurse into subdirs, keeping track of which ones are done + // and call back once all are processed + subdirs.forEach(function (subdir) { + readdirRec(subdir.fullPath, depth + 1, function () { + pendingSubdirs = pendingSubdirs - 1; + if(pendingSubdirs === 0) { + callCurrentDirProcessed(); + } + }); + }); + } + }); + }); + } + + // Validate and normalize filters + try { + opts.fileFilter = normalizeFilter(opts.fileFilter); + opts.directoryFilter = normalizeFilter(opts.directoryFilter); + } catch (err) { + // if we detect illegal filters, bail out immediately + handleFatalError(err); + return stream; + } + + // If filters were valid get on with the show + fs.realpath(opts.root, function(err, res) { + if (err) { + handleFatalError(err); + return stream; + } + + realRoot = res; + readdirRec(opts.root, 0, function () { + // All errors are collected into the errors array + if (errors.length > 0) { + allProcessed(errors, readdirResult); + } else { + allProcessed(null, readdirResult); + } + }); + }); + + return stream; +} + +module.exports = readdir; |