This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
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161 lines
3.9 KiB
161 lines
3.9 KiB
// most of this code was written by Andrew Kelley |
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// licensed under the BSD license: see |
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// https://github.com/andrewrk/node-mv/blob/master/package.json |
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// this needs a cleanup |
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var fs = require('graceful-fs') |
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var ncp = require('../copy/ncp') |
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var path = require('path') |
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var remove = require('../remove').remove |
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var mkdirp = require('../mkdirs').mkdirs |
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function mv (source, dest, options, callback) { |
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if (typeof options === 'function') { |
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callback = options |
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options = {} |
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} |
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var shouldMkdirp = ('mkdirp' in options) ? options.mkdirp : true |
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var clobber = ('clobber' in options) ? options.clobber : false |
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var limit = options.limit || 16 |
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if (shouldMkdirp) { |
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mkdirs() |
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} else { |
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doRename() |
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} |
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function mkdirs () { |
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mkdirp(path.dirname(dest), function (err) { |
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if (err) return callback(err) |
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doRename() |
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}) |
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} |
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function doRename () { |
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if (clobber) { |
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fs.rename(source, dest, function (err) { |
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if (!err) return callback() |
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if (err.code === 'ENOTEMPTY' || err.code === 'EEXIST') { |
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remove(dest, function (err) { |
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if (err) return callback(err) |
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options.clobber = false // just clobbered it, no need to do it again |
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mv(source, dest, options, callback) |
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}) |
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return |
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} |
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// weird Windows shit |
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if (err.code === 'EPERM') { |
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setTimeout(function () { |
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remove(dest, function (err) { |
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if (err) return callback(err) |
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options.clobber = false |
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mv(source, dest, options, callback) |
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}) |
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}, 200) |
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return |
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} |
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if (err.code !== 'EXDEV') return callback(err) |
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moveAcrossDevice(source, dest, clobber, limit, callback) |
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}) |
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} else { |
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fs.link(source, dest, function (err) { |
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if (err) { |
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if (err.code === 'EXDEV' || err.code === 'EISDIR' || err.code === 'EPERM') { |
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moveAcrossDevice(source, dest, clobber, limit, callback) |
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return |
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} |
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callback(err) |
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return |
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} |
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fs.unlink(source, callback) |
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}) |
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} |
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} |
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} |
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function moveAcrossDevice (source, dest, clobber, limit, callback) { |
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fs.stat(source, function (err, stat) { |
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if (err) { |
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callback(err) |
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return |
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} |
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if (stat.isDirectory()) { |
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moveDirAcrossDevice(source, dest, clobber, limit, callback) |
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} else { |
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moveFileAcrossDevice(source, dest, clobber, limit, callback) |
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} |
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}) |
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} |
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function moveFileAcrossDevice (source, dest, clobber, limit, callback) { |
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var outFlags = clobber ? 'w' : 'wx' |
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var ins = fs.createReadStream(source) |
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var outs = fs.createWriteStream(dest, {flags: outFlags}) |
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ins.on('error', function (err) { |
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ins.destroy() |
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outs.destroy() |
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outs.removeListener('close', onClose) |
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// may want to create a directory but `out` line above |
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// creates an empty file for us: See #108 |
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// don't care about error here |
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fs.unlink(dest, function () { |
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// note: `err` here is from the input stream errror |
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if (err.code === 'EISDIR' || err.code === 'EPERM') { |
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moveDirAcrossDevice(source, dest, clobber, limit, callback) |
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} else { |
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callback(err) |
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} |
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}) |
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}) |
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outs.on('error', function (err) { |
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ins.destroy() |
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outs.destroy() |
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outs.removeListener('close', onClose) |
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callback(err) |
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}) |
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outs.once('close', onClose) |
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ins.pipe(outs) |
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function onClose () { |
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fs.unlink(source, callback) |
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} |
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} |
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function moveDirAcrossDevice (source, dest, clobber, limit, callback) { |
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var options = { |
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stopOnErr: true, |
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clobber: false, |
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limit: limit |
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} |
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function startNcp () { |
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ncp(source, dest, options, function (errList) { |
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if (errList) return callback(errList[0]) |
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remove(source, callback) |
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}) |
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} |
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if (clobber) { |
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remove(dest, function (err) { |
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if (err) return callback(err) |
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startNcp() |
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}) |
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} else { |
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startNcp() |
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} |
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} |
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module.exports = { |
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move: mv |
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}
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