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Take a full page screenshot with Firefox on the command-line
...u can create a screenshot in headless mode like this:
firefox -screenshot https://developer.mozilla.com
Read more in the documentation.
Update 2017-06-15
As of Firefox 55 there is Firefox Screenshots as a more flexible alternative. As of Firefox 57 Screenshots can capture a full page, too.
Ori...
Many-to-many relationship with the same model in rails?
...o use, which is to copy what 'Community Engine' did.
You can refer to:
https://github.com/bborn/communityengine/blob/master/app/models/friendship.rb
and
https://github.com/bborn/communityengine/blob/master/app/models/user.rb
for more information.
TL;DR
# user.rb
has_many :friendships, :fore...
How do I assign a port mapping to an existing Docker container?
...s approach. You can also change the restart flag here.
P.S. You may visit https://docs.docker.com/engine/admin/ to learn how to correctly restart your docker engine as per your host machine. I used sudo systemctl restart docker to restart my docker engine that is running on Ubuntu 16.04
...
How to Execute a Python File in Notepad ++?
...
First install Python from https://www.python.org/downloads/
Run the installer
** IMPORTANT **
Be sure you check both :
Install launcher for all users
Add Python 3.6 to path
Click install now and finish the installation.
Open notepad++ and inst...
How to check version of a CocoaPods framework
...summary of dependencies which are out-of-date.
You can find it on Github: https://github.com/citruz/podchecker
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Why is the apt-get function not working in the terminal on Mac OS X v10.9 (Mavericks)?
...pe the following in your Mac OS X terminal:
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
After that, usage of Homebrew is brew install <package>.
One of the prerequisites for Homebrew are the XCode command line tools.
Install XCode from ...
Android: allow portrait and landscape for tablets, but force portrait on phone?
...an activity as setRequestedOrientation does if has to change orientation:
https://stackoverflow.com/a/27015879/1281930
Android - get children inside a View?
...or the children. The code is small and simple and can be found at github: https://github.com/jkincali/Android-LinearLayout-Parser
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Where to host an Open Source Project: CodePlex, Google Code, SourceForge? [closed]
...
This question seems like a duplicate of this one: https://stackoverflow.com/questions/10490/best-open-source-project-hosting-site
Here was my answer on that question: https://stackoverflow.com/questions/10490/best-open-source-project-hosting-site/3433969#3433969
In general...
rmagick gem install “Can't find Magick-config”
...izing a script for ImageMagick installation on github.
magick-installer ( https://github.com/maddox/magick-installer )
It made a fresh install of ImageMagick, and the RMagick 2.12.2 gem then installed perfectly via bundler.
Thanks to Hulihan Applications for confirming that it was most likely a m...