christophermark

# Prints out the iOS version number
printIosVersion() {
  sed -n 'N;s/.*CFBundleShortVersionString.*>\([0-9]*\.[0-9]*\.[0-9]*\).*/\1/p' ios/Compass/Info.plist
}

# Sets the iOS version number
#
# {$1} The new version number to set
###### Documentation ######
# sed -i '' '                              # -i '' will modify the file and save it

christophermark

/**
 * Set the system time for our tests.
 * This ensures that our tests can't fail based on the local time of the CI machine.
 * This guards against app code where the behavior changes based on the device time.
 * For example, a test might fail if we attempt to set the search time "before now".
 */
beforeAll(() => {
  // @TODO: 'modern' is default once we upgrade to Jest 27 https://jestjs.io/blog/2020/05/05/jest-26#new-fake-timers
  jest.useFakeTimers("modern");
  const JS_DATE_11_AM = new Date(new Date().setHours(11, 0, 0, 0));

christophermark

On OS X:

brew install nmap
nmap --script ssl-enum-ciphers -p 443 example.server.com

Example output

Starting Nmap 7.40 ( https://nmap.org ) at 2017-05-18 15:34 CEST
Nmap scan report for example.server.com (1.2.3.4)
Host is up (0.036s latency).

christophermark

 git status | egrep -v '.js|.png'

christophermark

componentDidUpdate(prevProps) {
    console.log("Render update diff:");

    const now = Object.entries(this.props);
    const added = now.filter(([key, val]) => {
      if (prevProps[key] === undefined && val !== undefined) return true;
      if (prevProps[key] !== val) {
        console.log(`${key}
          + ${JSON.stringify(val)}
          - ${JSON.stringify(prevProps[key])}`);

christophermark

adb logcat '*:W' > logcatWarningsAndErrors.txt

christophermark

Some Google Play store research for setting up private beta channels for Managed Devices.
Note the difference between:

Play Store:    play.google.com/
Managed Play Store:    play.google.com/work

Creating a closed testing track

https://support.google.com/googleplay/android-developer/answer/3131213
Specifically the following section:

christophermark

Print ESLint Rules

./node_modules/eslint/bin/eslint.js --print-config .eslintrc.json > rules.json

Show all errors for a specific rule

// todo

christophermark

'use strict';

function getDependencies(funcs) {
  const dependencies = Array.isArray(funcs[0]) ? funcs[0] : funcs

  if (!dependencies.every(dep => typeof dep === 'function')) {
    const dependencyTypes = dependencies.map(
      dep => typeof dep
    ).join(', ')
    throw new Error(

christophermark

// List the full gradle dependencies for an Android app
./gradlew app:dependencies -q