366 lines
8.7 KiB
JavaScript
366 lines
8.7 KiB
JavaScript
'use strict';
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var PromiseA = require('bluebird').Promise
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, fs = PromiseA.promisifyAll(require('fs'))
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, forEachAsync = require('foreachasync').forEachAsync
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, path = require('path')
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, walk = require('walk')
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, escapeRegExp = require('./deardesi-utils').escapeRegExp
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, safeResolve = require('./deardesi-utils').safeResolve
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, sha1sum = function (str) { return require('secret-utils').hashsum('sha1', str); }
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, mkdirp = PromiseA.promisify(require('mkdirp'))
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, fsExtra = PromiseA.promisifyAll(require('fs.extra'))
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//, tmpdir = require('os').tmpdir()
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;
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function strip(prefix, pathname) {
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return pathname.substr(prefix.length + 1);
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}
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function walkDir(parent, sub, opts) {
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opts = opts || {};
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if (false !== opts.sha1sum) {
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opts.sha1sum = true;
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}
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var prefix = path.resolve(parent)
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, trueRoot = path.resolve(prefix, sub)
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, files = []
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;
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function filter(name) {
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if (!name) {
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return false;
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}
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if (!opts.dotfiles && ('.' === name[0])) {
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return false;
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}
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if (opts.extensions && opts.extensions.length) {
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if (!opts.extensions.some(function (ext) {
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return new RegExp('\\.' + escapeRegExp(ext) + '$').test(name);
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})) {
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return false;
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}
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}
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return true;
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}
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return new PromiseA(function (resolve) {
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var walker = walk.walk(trueRoot)
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;
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walker.on('nodeError', function (filepath, stat, next) {
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//stats.forEach(function (stat) {
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if (!filter(stat.name)) {
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return;
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}
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stat.error.path = path.join(strip(prefix, filepath), stat.name);
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files.push({
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name: stat.name
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, relativePath: strip(prefix, filepath)
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, path: path.join(strip(prefix, filepath), stat.name)
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, type: undefined
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, error: stat.error
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});
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//});
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next();
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});
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walker.on('files', function (root, stats, next) {
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var dirname = strip(prefix, root)
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;
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function eachFile(stat) {
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var file
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;
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if (!filter(stat.name)) {
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return;
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}
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file = {
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name: stat.name
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, relativePath: dirname
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, path: path.join(dirname, stat.name)
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, createdDate: (stat.birthtime||stat.ctime).toISOString()
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, lastModifiedDate: stat.mtime.toISOString()
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, size: stat.size
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, type: undefined // TODO include mimetype
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};
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files.push(file);
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if (!(opts.sha1sum || opts.content)) {
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return;
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}
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// TODO stream sha1 (for assets)
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return fs.readFileAsync(path.join(root, stat.name), null).then(function (buffer) {
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var contents = buffer.toString('utf8')
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;
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file.sha1 = sha1sum(contents);
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file.type = undefined;
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if (opts.contents) {
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file.contents = contents;
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}
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});
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}
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if (!opts.contents) {
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stats.forEach(eachFile);
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next();
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} else {
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forEachAsync(stats, eachFile).then(next);
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}
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});
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walker.on('end', function () {
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resolve(files);
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});
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});
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}
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function walkDirs(parent, subs, opts) {
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opts = opts || {};
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var collections = {}
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;
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return forEachAsync(subs, function (sub) {
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return walkDir(parent, sub, opts).then(function (results) {
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collections[sub] = results;
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});
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}).then(function () {
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return collections;
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});
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}
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function getfs(blogdir, filepaths) {
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var files = []
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;
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return forEachAsync(filepaths, function (filepath) {
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var pathname = safeResolve(blogdir, filepath)
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;
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return fs.lstatAsync(pathname).then(function (stat) {
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return fs.readFileAsync(pathname, null).then(function (buffer) {
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files.push({
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name: path.basename(pathname)
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, relativePath: path.dirname(filepath)
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, path: filepath
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, createdDate: (stat.birthtime||stat.ctime).toISOString()
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, lastModifiedDate: stat.mtime.toISOString()
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, contents: buffer.toString('utf8')
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, size: buffer.length
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, sha1: sha1sum(buffer)
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, type: undefined
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});
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});
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}).catch(function (e) {
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files.push({ path: filepath, error: e.message });
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});
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}).then(function () {
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return files;
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});
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}
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function makeAllDirs(dirpaths) {
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var errors = []
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;
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return forEachAsync(dirpaths, function (pathname) {
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return mkdirp(pathname).catch(function (e) {
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// TODO exclude attempting to write files to this dir?
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errors.push({
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type: 'directory'
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, directory: pathname
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, message: e.message
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, code: e.code
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, errno: e.errno
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, status: e.status
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, syscall: e.syscall
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});
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});
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}).then(function () {
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return errors;
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});
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}
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function copyfs(blogdir, files) {
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// TODO switch format to { source: ..., dest: ..., opts: ... } ?
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var results = { errors: [] }
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, dirpaths = {}
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, sources = Object.keys(files)
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;
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return forEachAsync(sources, function (source) {
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/*
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var nsource = safeResolve(blogdir, source)
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;
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*/
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var dest = safeResolve(blogdir, files[source])
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, pathname = path.dirname(dest)
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//, filename = path.basename(dest)
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;
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dirpaths[pathname] = true;
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return Promise.resolve();
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}).then(function () {
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// TODO is it better to do this lazy-like or as a batch?
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// I figure as batch when there may be hundreds of files,
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// likely within 2 or 3 directories
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return makeAllDirs(Object.keys(dirpaths)).then(function (errors) {
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errors.forEach(function (e) {
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results.errors.push(e);
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});
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});
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}).then(function () {
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// TODO allow delete?
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return forEachAsync(sources, function (source) {
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return fsExtra.copyAsync(
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safeResolve(blogdir, source)
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, safeResolve(blogdir, files[source])
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, { replace: true }
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).catch(function (e) {
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results.errors.push({
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type: 'file'
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, source: source
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, destination: files[source]
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, message: e.message
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, code: e.code
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, errno: e.errno
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, status: e.status
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, syscall: e.syscall
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});
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});
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});
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}).catch(function (e) {
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results.error = {
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message: e.message
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, code: e.code
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, errno: e.errno
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, status: e.status
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, syscall: e.syscall
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};
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}).then(function () {
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return results;
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});
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}
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function putfs(blogdir, files) {
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var results = { errors: [] }
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, dirpaths = {}
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;
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return forEachAsync(files, function (file) {
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var filepath = safeResolve(blogdir, file.path || path.join(file.relativePath, file.name))
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, pathname = path.dirname(filepath)
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, filename = file.name || path.basename(filepath)
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;
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file.realPath = filepath;
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file.name = filename;
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dirpaths[pathname] = true;
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return Promise.resolve();
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}).then(function () {
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// TODO is it better to do this lazy-like or as a batch?
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// I figure as batch when there may be hundreds of files,
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// likely within 2 or 3 directories
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return forEachAsync(Object.keys(dirpaths), function (pathname) {
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return mkdirp(pathname).catch(function (e) {
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// TODO exclude attempting to write files to this dir?
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results.errors.push({
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type: 'directory'
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, directory: pathname
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, message: e.message
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, code: e.code
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, errno: e.errno
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, status: e.status
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, syscall: e.syscall
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});
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});
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});
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}).then(function () {
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// TODO sort deletes last
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return forEachAsync(files, function (file) {
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var p
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;
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// TODO use lastModifiedDate as per client request?
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// TODO compare sha1 sums for integrity
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if (file.delete || !file.contents) {
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p = fs.unlinkAsync(file.realPath);
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} else {
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p = fs.writeFileAsync(file.realPath, file.contents, 'utf8');
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}
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return p.catch(function (e) {
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results.errors.push({
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type: 'file'
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, file: file.realPath
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, delete: !file.contents
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, path: file.path
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, relativePath: file.relativePath
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, name: file.name
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, message: e.message
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, code: e.code
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, errno: e.errno
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, status: e.status
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, syscall: e.syscall
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});
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});
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});
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}).catch(function (e) {
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results.error = {
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message: e.message
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, code: e.code
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, errno: e.errno
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, status: e.status
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, syscall: e.syscall
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};
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}).then(function () {
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return results;
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});
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}
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/*
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walkDirs('blog', ['posts'], { contents: false }).then(function (stats) {
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console.log(JSON.stringify(stats, null, ' '));
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});
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*/
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module.exports.walk = { walkDirs: walkDirs, walkDir: walkDir };
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module.exports.copyfs = copyfs;
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module.exports.getfs = getfs;
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module.exports.putfs = putfs;
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module.exports.walkDir = walkDir;
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module.exports.walkDirs = walkDirs;
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