chapters: delete old chapter samples

2020-06-28 00:32:12 +01:00
parent 0d8170c265
commit a0906ea9ae
498 changed files with 0 additions and 11344 deletions
@@ -1,16 +0,0 @@
-'use strict'
-
-const net = require('net')
-
-const socket = net.connect(1337, 'localhost')
-const name = process.argv[2] || 'Dave'
-
-socket.write(name)
-
-socket.on('data', (data) => {
-  console.log(data.toString())
-})
-
-socket.on('close', () => {
-  console.log('-> disconnected by server')
-})
@@ -1,14 +0,0 @@
-'use strict'
-
-const net = require('net')
-
-const socket = net.connect(1337)
-const name = process.argv[2] || 'Dave'
-
-socket.write(name)
-
-socket.pipe(process.stdout)
-
-socket.on('close', () => {
-  console.log('-> disconnected by server')
-})
@@ -1,3 +0,0 @@
-'use strict'
-
-process.stdin.pipe(require('net').connect(1338)).pipe(process.stdout)
@@ -1,3 +0,0 @@
-'use strict'
-
-require('net').createServer((socket) => socket.pipe(socket)).listen(1338)
@@ -1,13 +0,0 @@
-'use strict'
-
-const net = require('net')
-
-net.createServer((socket) => {
-  console.log('-> client connected')
-  socket.once('data', name => {
-    socket.write(`Hi ${name}!`)
-  })
-  socket.on('close', () => {
-    console.log('-> client disconnected')
-  })
-}).listen(1337)
@@ -1,13 +0,0 @@
-'use strict'
-
-const net = require('net')
-
-net.createServer((socket) => {
-  console.log('-> client connected')
-  socket.on('data', name => {
-    socket.write(`Hi ${name}!`)
-  })
-  socket.on('close', () => {
-    console.log('-> client disconnected')
-  })
-}).listen(1337, 'localhost')
@@ -1,13 +0,0 @@
-'use strict'
-
-const dgram = require('dgram')
-
-const socket = dgram.createSocket('udp4')
-const name = process.argv[2] || 'Dave'
-
-socket.bind(1400)
-socket.send(name, 1339)
-
-socket.on('message', (data) => {
-  console.log(data.toString())
-})
@@ -1,10 +0,0 @@
-'use strict'
-
-const dgram = require('dgram')
-
-const socket = dgram.createSocket('udp4')
-socket.bind(1339)
-
-socket.on('message', (name) => {
-  socket.send(`Hi ${name}!`, 1400)
-})
@@ -1,16 +0,0 @@
-'use strict'
-
-const net = require('net')
-
-const socket = net.connect('/tmp/my.socket')
-const name = process.argv[2] || 'Dave'
-
-socket.write(name)
-
-socket.on('data', (data) => {
-  console.log(data.toString())
-})
-
-socket.on('close', () => {
-  console.log('-> disconnected by server')
-})
@@ -1,13 +0,0 @@
-'use strict'
-
-const net = require('net')
-
-net.createServer((socket) => {
-  console.log('-> client connected')
-  socket.on('data', name => {
-    socket.write(`Hi ${name}!`)
-  })
-  socket.on('close', () => {
-    console.log('-> client disconnected')
-  })
-}).listen('/tmp/my.socket')
@@ -1,17 +0,0 @@
-'use strict'
-
-const fs = require('fs')
-
-const exists = (file) => new Promise((resolve, reject) => {
-  fs.access(file, (err) => {
-    if (err) {
-      if (err.code !== 'ENOENT') { return reject(err) }
-      return resolve({file, exists: false})
-    }
-    resolve({file, exists: true})
-  })  
-})
-
-exists(process.argv[2])
-  .then(({file, exists}) => console.log(`"${file}" does${exists ? '' : ' not'} exist`))
-  .catch(console.error)
@@ -1,66 +0,0 @@
-'use strict'
-
-const fs = require('fs')
-const path = require('path')
-const tableaux = require('tableaux')
-
-const write = tableaux(
-  {name: 'Name', size: 20},
-  {name: 'Created', size: 30},
-  {name: 'Inode', size: 10},
-  {name: 'Mode', size: 8},
-  {name: 'Lnks', size: 4},
-  {name: 'Size', size:  6}
-)
-
-function print(dir) {
-  fs.readdirSync(dir)
-    .map((file) => ({file, dir}))
-    .map(toMeta)
-    .forEach(output)
-  write.newline()
-}
-
-function toMeta({file, dir}) {
-  const stats = fs.lstatSync(path.join(dir, file))
-  let {birthtime, ino, mode, nlink, size} = stats
-  birthtime = birthtime.toUTCString()
-  mode = mode.toString(8)
-  size += 'B'
-  return {
-    file,
-    dir,
-    info: [birthtime, ino, mode, nlink, size],
-    isDir: stats.isDirectory(),
-    isSymLink: stats.isSymbolicLink()
-  }
-}
-
-function output({file, dir, info, isDir, isSymLink}) {
-  if (isSymLink) {
-    outputSymlink(file, dir, info)
-    return
-  }
-  write(file, ...info)
-  if (!isDir) { return }
-  const p = path.join(dir, file)
-  write.arrow()
-  fs.readdirSync(p).forEach((f) => {
-    const stats = fs.lstatSync(path.join(p, f))
-    const style = stats.isDirectory() ? 'bold' : 'dim'
-    if (stats.isSymbolicLink()) { f = '\u001b[33m' + f + '\u001b[0m'}
-    write[style](f)
-  })
-  write.newline()
-}
-
-function outputSymlink(file, dir, info) {
-  write('\u001b[33m' + file + '\u001b[0m', ...info)
-  process.stdout.write('\u001b[33m')
-  write.arrow(4)
-  write.bold(fs.readlinkSync(path.join(dir, file)))
-  process.stdout.write('\u001b[0m')
-  write.newline()
-}
-
-print(process.argv[2] || '.')
@@ -1 +0,0 @@
-/tmp
@@ -1 +0,0 @@
-my-symlink
@@ -1 +0,0 @@
-my edit
@@ -1 +0,0 @@
-another-file
@@ -1 +0,0 @@
-my-file
@@ -1 +0,0 @@
-../meta.js
@@ -1 +0,0 @@
-my-subdir/my-subsubdir/too-deep
@@ -1,26 +0,0 @@
-'use strict'
-
-const fs = require('fs')
-const {execSync} = require('child_process')
-
-const file = process.argv[2]
-if (!file) { 
-  console.error('specify a file')
-  process.exit(1)
-}
-try {
-  fs.accessSync(file)
-  console.error('file already exists')
-  process.exit(1)
-} catch (e) {
-  makeIt()
-}
-
-function makeIt() {
-  const nobody = Number(execSync('id -u nobody').toString().trim())
-  const fd = fs.openSync(file, 'w')
-  fs.fchmodSync(fd, 0)
-  fs.fchownSync(fd, nobody, nobody)
-  console.log(file + ' created')
-}
-
@@ -1,25 +0,0 @@
-'use strict'
-
-const fs = require('fs')
-const {execSync} = require('child_process')
-
-const file = process.argv[2]
-if (!file) { 
-  console.error('specify a file')
-  process.exit(1)
-}
-try {
-  fs.accessSync(file)
-  console.error('file already exists')
-  process.exit(1)
-} catch (e) {
-  makeIt()
-}
-
-function makeIt() {
-  const nobody = Number(execSync('id -u nobody').toString().trim())
-  fs.writeFileSync(file, '')
-  fs.chownSync(file, nobody, nobody)
-  fs.chmodSync(file, 0)
-  console.log(file + ' created')
-}
@@ -1,51 +0,0 @@
-'use strict'
-
-const fs = require('fs')
-const path = require('path')
-const tableaux = require('tableaux')
-
-const write = tableaux(
-  {name: 'Name', size: 20},
-  {name: 'Created', size: 30},
-  {name: 'Inode', size: 10},
-  {name: 'Mode', size: 8},
-  {name: 'Lnks', size: 4},
-  {name: 'Size', size:  6}
-)
-
-function print(dir) {
-  fs.readdirSync(dir)
-    .map((file) => ({file, dir}))
-    .map(toMeta)
-    .forEach(output)
-  write.newline()
-}
-
-function toMeta({file, dir}) {
-  const stats = fs.statSync(path.join(dir, file))
-  let {birthtime, ino, mode, nlink, size} = stats
-  birthtime = birthtime.toUTCString()
-  mode = mode.toString(8)
-  size += 'B'
-  return {
-    file,
-    dir,
-    info: [birthtime, ino, mode, nlink, size],
-    isDir: stats.isDirectory()
-  }
-}
-
-function output({file, dir, info, isDir}) {
-  write(file, ...info)
-  if (!isDir) { return }
-  const p = path.join(dir, file)
-  write.arrow()
-  fs.readdirSync(p).forEach((f) => {
-    const stats = fs.statSync(path.join(p, f))
-    const style = stats.isDirectory() ? 'bold' : 'dim'
-    write[style](f)
-  })
-  write.newline()
-}
-
-print(process.argv[2] || '.')
@@ -1 +0,0 @@
-my edit
@@ -1 +0,0 @@
-my-file
@@ -1,14 +0,0 @@
-{
-  "name": "fetching-meta-data",
-  "version": "1.0.0",
-  "description": "",
-  "main": "meta.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "author": "David Mark Clements",
-  "license": "MIT",
-  "dependencies": {
-    "tableaux": "^1.0.1"
-  }
-}
@@ -1,6 +0,0 @@
-'use strict'
-
-process.stdin.on('data', data => {
-  process.stderr.write(`Converting: "${data}" to base64\n`)
-  process.stdout.write(data.toString('base64') + '\n')
-})
@@ -1,4 +0,0 @@
-'use strict'
-
-const encode = require('base64-encode-stream')
-process.stdin.pipe(encode()).pipe(process.stdout)
@@ -1,16 +0,0 @@
-{
-  "name": "piping",
-  "version": "1.0.0",
-  "main": "base64.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "author": "David Mark Clements",
-  "license": "MIT",
-  "dependencies": {
-    "base64-encode-stream": "^1.0.0"
-  },
-  "devDependencies": {},
-  "keywords": [],
-  "description": ""
-}
@@ -1 +0,0 @@
-back again
@@ -1,15 +0,0 @@
-{
-  "name": "watching-files-and-directories",
-  "version": "1.0.0",
-  "description": "",
-  "main": "watcher.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "keywords": [],
-  "author": "David Mark Clements",
-  "license": "MIT",
-  "dependencies": {
-    "human-time": "0.0.1"
-  }
-}
@@ -1,44 +0,0 @@
-'use strict'
-
-const fs = require('fs')
-const human = require('human-time')
-
-const interval = 5007
-const file = process.argv[2]
-let exists = false
-
-if (!file) {
-  console.error('supply a file')
-  process.exit(1)
-}
-
-const created = ({birthtime}) => 
-  !exists && (Date.now() - birthtime) < interval
-
-const missing = ({birthtime, mtime, atime, ctime}) => 
-  !(birthtime|mtime|atime|ctime)
-
-const updated = (cur, prv) => cur.mtime !== prv.mtime
-
-fs.watchFile(file, {interval}, (cur, prv) => {
-  if (missing(cur)) {
-    const msg = exists ? 'removed' : 'doesn\'t exist'
-    exists = false
-    return console.log(`${file} ${msg}`)
-  }
-
-  if (created(cur)) {
-    exists = true
-    return console.log(`${file} created ${human((cur.birthtime))}`)
-  }
-
-  exists = true
-
-  if (updated(cur, prv)) {
-    return console.log(`${file} updated ${human((cur.mtime))}`)
-  }
-
-  console.log(`${file} modified ${human((cur.mtime))}`)
-})
-
-
@@ -1,16 +0,0 @@
-{
-  "name": "watching-with-chokidar",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "keywords": [],
-  "author": "David Mark Clements",
-  "license": "MIT",
-  "dependencies": {
-    "chokidar": "^1.6.0",
-    "human-time": "0.0.1"
-  }
-}
@@ -1,28 +0,0 @@
-'use strict'
-
-const chokidar = require('chokidar')
-const human = require('human-time')
-const watcher = chokidar.watch(process.argv[2] || '.', {
-  alwaysStat: true
-})
-
-watcher.on('ready', () => {
-  watcher
-    .on('add', (file, stat) => {
-      console.log(`${file} created ${human((stat.birthtime))}`)
-    })
-    .on('unlink', (file) => {
-      console.log(`${file} removed`)
-    })
-    .on('change', (file, stat) => {
-      const msg = (+stat.ctime === +stat.mtime) ? 'updated' : 'modified'
-      console.log(`${file} ${msg} ${human((stat.ctime))}`)
-    })
-    .on('addDir', (dir, stat) => {
-      console.log(`${dir} folder created ${human((stat.birthtime))}`)
-    })
-    .on('unlinkDir', (dir) => {
-      console.log(`${dir} folder removed`)
-    })
-})
-  
@@ -1,22 +0,0 @@
-Wed Jun 08 2016 22:53:26 GMT+0100 (BST) 896961 bytes removed
-Wed Jun 08 2016 22:54:14 GMT+0100 (BST) 896961 bytes removed
-Wed Jun 08 2016 22:54:25 GMT+0100 (BST) 896961 bytes removed
-Wed Jun 08 2016 22:54:30 GMT+0100 (BST) 896961 bytes removed
-Wed Jun 08 2016 22:54:36 GMT+0100 (BST) 896961 bytes removed
-Wed Jun 08 2016 22:54:41 GMT+0100 (BST) 896961 bytes removed
-Wed Jun 08 2016 22:54:59 GMT+0100 (BST) 10000000 bytes removed
-Wed Jun 08 2016 22:56:01 GMT+0100 (BST) 100000000 bytes removed
-Wed Jun 08 2016 22:57:07 GMT+0100 (BST) 897494 bytes removed
-Wed Jun 08 2016 22:57:23 GMT+0100 (BST) 10000000 bytes removed
-Wed Jun 08 2016 22:57:32 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 22:57:34 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 22:57:35 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 22:58:21 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 22:59:03 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 23:03:21 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 23:03:56 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 23:04:14 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 23:04:40 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 23:04:45 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 23:50:48 GMT+0100 (BST) 897432 bytes removed
-Wed Jun 08 2016 23:50:50 GMT+0100 (BST) 897432 bytes removed
@@ -1,16 +0,0 @@
-'use strict'
-
-setInterval(() => process.stdout.write('.'), 10).unref()
-
-const fs = require('fs')
-const path = require('path')
-const cwd = process.cwd()
-const bytes = fs.readFileSync(path.join(cwd, 'file.dat'))
-
-const clean = bytes.filter(n => n)
-fs.writeFileSync(path.join(cwd, 'clean.dat'), clean)
-
-fs.appendFileSync(
-  path.join(cwd, 'log.txt'),
-  (new Date) + ' ' + (bytes.length - clean.length) + ' bytes removed\n'
-)
@@ -1,19 +0,0 @@
-'use strict'
-
-setInterval(() => process.stdout.write('.'), 10).unref()
-
-const fs = require('fs')
-const path = require('path')
-const cwd = process.cwd()
-
-fs.readFile(path.join(cwd, 'file.dat'), (err, bytes) => {
-  if (err) { console.error(err); process.exit(1); }
-  const clean = bytes.filter(n => n)
-  fs.writeFile(path.join(cwd, 'clean.dat'), clean, (err) => {
-    if (err) { console.error(err); process.exit(1); }
-    fs.appendFile(
-      path.join(cwd, 'log.txt'),
-      (new Date) + ' ' + (bytes.length - clean.length) + ' bytes removed\n'
-    )
-  })
-})
@@ -1,4 +0,0 @@
-Wed Jun 08 2016 23:48:13 GMT+0100 (BST) 896977 bytes removed
-Wed Jun 08 2016 23:48:17 GMT+0100 (BST) 896977 bytes removed
-Wed Jun 08 2016 23:49:25 GMT+0100 (BST) 896977 bytes removed
-Wed Jun 08 2016 23:50:17 GMT+0100 (BST) 896977 bytes removed
@@ -1,23 +0,0 @@
-'use strict'
-
-setInterval(() => process.stdout.write('.'), 10).unref()
-
-const fs = require('fs')
-const path = require('path')
-const cwd = process.cwd()
-
-const sbs = require('strip-bytes-stream')
-
-fs.createReadStream(path.join(cwd, 'file.dat'))
-  .pipe(sbs((n) => n))
-  .on('end', function () { log(this.total) })
-  .pipe(fs.createWriteStream(path.join(cwd, 'clean.dat')))
-
-function log(total) {
-  fs.appendFile(
-    path.join(cwd, 'log.txt'),
-    (new Date) + ' ' + total + ' bytes removed\n'
-  )
-}
-
-
@@ -1,14 +0,0 @@
-{
-  "name": "piping",
-  "version": "1.0.0",
-  "description": "",
-  "main": "null-byte-remover.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "author": "David Mark Clements",
-  "license": "MIT",
-  "dependencies": {
-    "strip-bytes-stream": "^1.1.0"
-  }
-}
@@ -1,6 +0,0 @@
-Wed Jun 08 2016 22:56:41 GMT+0100 (BST) 100000000 bytes removed
-Wed Jun 08 2016 22:56:54 GMT+0100 (BST) 897090 bytes removed
-Wed Jun 08 2016 22:58:02 GMT+0100 (BST) 897090 bytes removed
-Wed Jun 08 2016 22:58:03 GMT+0100 (BST) 897090 bytes removed
-Wed Jun 08 2016 22:58:15 GMT+0100 (BST) 897090 bytes removed
-Wed Jun 08 2016 22:59:08 GMT+0100 (BST) 897090 bytes removed
@@ -1,15 +0,0 @@
-'use strict'
-
-const fs = require('fs')
-const path = require('path')
-const cwd = process.cwd()
-const bytes = fs.readFileSync(path.join(cwd, 'file.dat'))
-
-const clean = bytes.filter(n => n)
-fs.writeFileSync(path.join(cwd, 'clean.dat'), clean)
-
-fs.appendFileSync(
-  path.join(cwd, 'log.txt'),
-  (new Date) + ' ' + (bytes.length - clean.length) + ' bytes removed\n'
-)
-