Add @zeit eslint config

TooTallNate · May 24, 2018 · 1a019e2 · 1a019e2
1 parent 4f04483
commit 1a019e2
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Showing 3 changed files with 209 additions and 135 deletions.
diff --git a/.editorconfig b/.editorconfig
@@ -0,0 +1,37 @@
+root = true
+
+[*]
+indent_style = tab
+indent_size = 4
+tab_width = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[{*.json,*.json.example,*.gyp,*.yml,*.yaml}]
+indent_style = space
+indent_size = 2
+
+[{*.py,*.asm}]
+indent_style = space
+
+[*.py]
+indent_size = 4
+
+[*.asm]
+indent_size = 8
+
+[*.md]
+trim_trailing_whitespace = false
+
+# Ideal settings - some plugins might support these.
+[*.js]
+quote_type = single
+
+[{*.c,*.cc,*.h,*.hh,*.cpp,*.hpp,*.m,*.mm,*.mpp,*.js,*.java,*.go,*.rs,*.php,*.ng,*.jsx,*.ts,*.d,*.cs,*.swift}]
+curly_bracket_next_line = false
+spaces_around_operators = true
+spaces_around_brackets = outside
+# close enough to 1TB
+indent_brace_style = K&R
diff --git a/bin/nightscout-ps1-daemon.js b/bin/nightscout-ps1-daemon.js
@@ -1,170 +1,194 @@
 #!/usr/local/bin/node
-const ms = require('ms')
-const os = require('os')
-const ini = require('ini')
-const args = require('args')
-const fs = require('fs-extra')
-const { join } = require('path')
-const fetch = require('node-fetch')
-const sleep = require('then-sleep')
-const onWake = require('wake-event')
-const sio = require('socket.io-client')
-const snakeCase = require('snake-case')
-const { parse, resolve } = require('url')
-const debug = require('debug')('nightscout-ps1')
-
-const { name } = require('../package.json')
+const ms = require('ms');
+const os = require('os');
+const ini = require('ini');
+const args = require('args');
+const {join} = require('path');
+const fetch = require('node-fetch');
+const sleep = require('then-sleep');
+const onWake = require('wake-event');
+const sio = require('socket.io-client');
+const snakeCase = require('snake-case');
+const {writeFile} = require('fs-extra');
+const {parse, resolve} = require('url');
+const debug = require('debug')('nightscout-ps1');
+
+const {name} = require('../package.json');
 
 const toSnakeCase = _o => {
-  if (!_o) return _o
-  const o = {}
-  for (const k of Object.keys(_o)) {
-    const v = _o[k]
-    o[snakeCase(k)] = typeof v === 'object' ? toSnakeCase(v) : v
-  }
-  return o
+	if (!_o) {
+		return _o;
+	}
+	const o = {};
+	for (const k of Object.keys(_o)) {
+		const v = _o[k];
+		o[snakeCase(k)] = typeof v === 'object' ? toSnakeCase(v) : v;
+	}
+	return o;
+};
+
+function *flatten(input, prefix = '') {
+	for (const key of Object.keys(input)) {
+		let value = input[key];
+		const name = prefix + snakeCase(key);
+		if (Array.isArray(value)) {
+			value = value.join(',');
+		} else if (typeof value === 'object') {
+			yield *flatten(value, `${name}_`);
+			value = null;
+		} else {
+			value = String(value);
+		}
+		if (value !== null) {
+		  yield [name, value];
+		}
+	}
 }
 
 args
-  .option('nightscout', 'URL of your Nightscout deployment', '')
-  .option(
-    'cache-file',
-    'Path to write the latest reading file',
-    join(os.homedir(), '.nightscout-latest-entry')
-  )
-
-const flags = args.parse(process.argv, { name })
+	.option('nightscout', 'URL of your Nightscout deployment', '')
+	.option(
+		'cache-file',
+		'Path to write the latest reading file',
+		join(os.homedir(), '.nightscout-latest-entry')
+	);
+
+const flags = args.parse(process.argv, {name});
 while (args.sub.length > 0) {
-  const command = args.sub.shift()
-  if (command === 'daemon') {
-    // ignore…
-  } else {
-    // assume it's a Nightscout URL
-    flags.nightscout = command
-  }
+	const command = args.sub.shift();
+	if (command === 'daemon') {
+		// ignore…
+	} else {
+		// assume it's a Nightscout URL
+		flags.nightscout = command;
+	}
 }
 if (!flags.nightscout) {
-  console.error(
-    'FATAL: The `--nightscout` parameter must point to your Nightscout URL'
-  )
-  process.exit(1)
+	console.error(
+		'FATAL: The `--nightscout` parameter must point to your Nightscout URL'
+	);
+	process.exit(1);
 }
 
 const resolvePrefix = async _url => {
-  let url = _url
-  if (!parse(url).protocol) {
-    url = `http://${url}`
-  }
-  const res = await fetch(url)
-  debug('Resolved URL %o to %o', _url, res.url)
-  return res.url
-}
-
-const resolvedNightscout = resolvePrefix(flags.nightscout)
-let socket
-let statusPromise
-let entries = new Map()
-exit(pollStatus())
-exit(main())
+	let url = _url;
+	if (!parse(url).protocol) {
+		url = `http://${url}`;
+	}
+	const res = await fetch(url);
+	debug('Resolved URL %o to %o', _url, res.url);
+	return res.url;
+};
+
+const resolvedNightscout = resolvePrefix(flags.nightscout);
+let socket;
+let statusPromise;
+const entries = new Map();
+exit(pollStatus());
+exit(main());
 
 // reset Socket.io connection after the computer wakes from sleep
 onWake(() => {
-  debug('Wake event')
-  exit(main())
-})
+	debug('Wake event');
+	exit(main());
+});
 
 function exit(promise) {
-  promise.catch(err => {
-    console.error(err)
-    process.exit(1)
-  })
+	promise.catch(err => {
+		console.error(err);
+		process.exit(1);
+	});
 }
 
 function emit(e, ...args) {
-  return new Promise((resolve, reject) => e.emit(...args, resolve))
+	return new Promise((resolve, reject) => e.emit(...args, resolve));
 }
 
 function once(e, name) {
-  return new Promise((resolve, reject) => e.once(name, resolve))
+	return new Promise((resolve, reject) => e.once(name, resolve));
 }
 
 async function updateStatus() {
-  const nightscout = await resolvedNightscout
-  const endpoint = resolve(nightscout, '/api/v1/status.json')
-  debug('Updating status %o', endpoint)
-  const res = await fetch(endpoint)
-  const body = await res.json()
-  debug('Status updated')
-  return body
+	const nightscout = await resolvedNightscout;
+	const endpoint = resolve(nightscout, '/api/v1/status.json');
+	debug('Updating status %o', endpoint);
+	const res = await fetch(endpoint);
+	const body = await res.json();
+	debug('Status updated');
+	return body;
 }
 
 async function pollStatus() {
-  statusPromise = updateStatus()
-  await statusPromise
-  // let that response be cached for a little while
-  await sleep(ms('5m'))
-  return pollStatus()
+	statusPromise = updateStatus();
+	await statusPromise;
+	// let that response be cached for a little while
+	await sleep(ms('5m'));
+	return pollStatus();
 }
 
 async function onDataUpdate(event) {
-  debug('Got event %o', event)
-  const { sgvs } = event
-  if (!sgvs) return
-  for (const entry of sgvs) {
-    entries.set(entry.mills, entry)
-  }
-
-  const sorted = Array.from(entries.keys()).sort()
-
-  // Purge old entries, keep up to two
-  const count = Math.max(0, sorted.length - 2)
-  debug('Purging %o entries', count);
-  for (let i = 0; i < count; i++) {
-    const key = sorted.shift()
-    entries.delete(key)
-  }
-
-  const latestEntry = entries.get(sorted.pop())
-  debug('Latest entry %o', latestEntry)
-
-  const previousEntry = entries.get(sorted.pop() || latestEntry.mills)
-  debug('Previous entry %o', previousEntry)
-
-  const { settings } = await Promise.resolve(statusPromise)
-
-  const data = {
-    previousEntry,
-    latestEntry,
-    settings
-  }
-
-  await fs.writeFile(flags.cacheFile, ini.stringify(toSnakeCase(data)))
-  debug('Wrote %o', flags.cacheFile)
+	debug('Got event %o', event);
+	const {sgvs} = event;
+	if (!sgvs) {
+		return;
+	}
+	for (const entry of sgvs) {
+		entries.set(entry.mills, entry);
+	}
+
+	const sorted = Array.from(entries.keys()).sort();
+
+	// Purge old entries, keep up to two
+	const count = Math.max(0, sorted.length - 2);
+	debug('Purging %o entries', count);
+	for (let i = 0; i < count; i++) {
+		const key = sorted.shift();
+		entries.delete(key);
+	}
+
+	const latestEntry = entries.get(sorted.pop());
+	debug('Latest entry %o', latestEntry);
+
+	const previousEntry = entries.get(sorted.pop() || latestEntry.mills);
+	debug('Previous entry %o', previousEntry);
+
+	const {settings} = await Promise.resolve(statusPromise);
+
+	const data = {
+		previousEntry,
+		latestEntry,
+		settings
+	};
+
+	const envs = Array.from(flatten(data)).map(([key, value]) => `local ${key}=${JSON.stringify(value)}\n`)
+		.join('');
+	await writeFile(flags.cacheFile, envs);
+	debug('Wrote %o', flags.cacheFile);
 }
 
 async function main() {
-  const nightscout = await resolvedNightscout
-
-  if (socket) {
-    debug('socket.close()')
-    socket.close()
-  }
-
-  debug('Creating socket.io connection %o', nightscout)
-  socket = sio.connect(nightscout)
-  socket.on('dataUpdate', e => exit(onDataUpdate(e)))
-
-  const auth = await emit(socket, 'authorize', {
-    client: 'web',
-    secret: null,
-    token: null,
-    history: 1
-  })
-  debug('Auth results %o', auth)
-  debug('Waiting for "dataUpdate" events')
-
-  await once(socket, 'close')
-  socket = null
-  debug('Socket closed. Establishing new connection')
-  return main()
+	const nightscout = await resolvedNightscout;
+
+	if (socket) {
+		debug('socket.close()');
+		socket.close();
+	}
+
+	debug('Creating socket.io connection %o', nightscout);
+	socket = sio.connect(nightscout);
+	socket.on('dataUpdate', e => exit(onDataUpdate(e)));
+
+	const auth = await emit(socket, 'authorize', {
+		client: 'web',
+		secret: null,
+		token: null,
+		history: 1
+	});
+	debug('Auth results %o', auth);
+	debug('Waiting for "dataUpdate" events');
+
+	await once(socket, 'close');
+	socket = null;
+	debug('Socket closed. Establishing new connection');
+	return main();
 }
diff --git a/package.json b/package.json
@@ -22,14 +22,27 @@
     "wake-event": "0.0.1"
   },
   "devDependencies": {
+    "@zeit/eslint-config-node": "0.2.13",
+    "@zeit/git-hooks": "^0.1.4",
+    "eslint": "4.19.1",
     "pkg": "^4.3.0-beta.5"
   },
   "scripts": {
-    "pack": "./pack.sh"
+    "pack": "./pack.sh",
+    "lint": "eslint --ext .jsx,.js . && ./scripts/lint.sh",
+    "lint-staged": "git diff --diff-filter=ACMRT --cached --name-only '*.js' '*.jsx' | xargs eslint"
   },
   "pkg": {
     "scripts": [
       "package.json"
     ]
+  },
+  "eslintConfig": {
+    "extends": [
+      "@zeit/eslint-config-node"
+    ]
+  },
+  "git": {
+    "pre-commit": "lint-staged"
   }
 }