yishn

const canIRun = navigator.mediaDevices.getDisplayMedia 

const takeScreenShot = async () => {
  const stream = await navigator.mediaDevices.getDisplayMedia({
    video: { mediaSource: 'screen' },
  })
  // get correct video track
  const track = stream.getVideoTracks()[0]
  // init Image Capture and not Video stream
  const imageCapture = new ImageCapture(track)

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

aespinosa

import jenkins.model.Jenkins;
import hudson.model.FreeStyleProject;
import hudson.tasks.Shell;

job = Jenkins.instance.createProject(FreeStyleProject, 'job-name')

job.buildersList.add(new Shell('echo hello world'))

job.save()

djoreilly

# http://docs.openstack.org/developer/keystoneauth/index.html
# http://www.jamielennox.net/blog/2014/09/15/how-to-use-keystoneclient-sessions/

# In iPython: execfile('path/to/this/file')

import os
import logging

from keystoneauth1.identity import v3
from keystoneauth1 import session

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

mattratleph

vimdiff cheat sheet

##git mergetool

In the middle file (future merged file), you can navigate between conflicts with ]c and [c.

Choose which version you want to keep with :diffget //2 or :diffget //3 (the //2 and //3 are unique identifiers for the target/master copy and the merge/branch copy file names).

:diffupdate (to remove leftover spacing issues)

:only (once you’re done reviewing all conflicts, this shows only the middle/merged file)