Roger Ramos rogerramosme

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

Install Terminator (shell)

sudo add-apt-repository ppa:gnome-terminator
sudo apt-get update
sudo apt-get install terminator

Terminator should be setup as default now. Restart your terminal (shortcut: "Ctrl+Alt+T").

Install ZSH

⇐ back to the gist-blog at jrw.fi

Advanced SCSS

Or, 16 cool things you may not have known your stylesheets could do. I'd rather have kept it to a nice round number like 10, but they just kept coming. Sorry.

I've been using SCSS/SASS for most of my styling work since 2009, and I'm a huge fan of Compass (by the great @chriseppstein). It really helped many of us through the darkest cross-browser crap. Even though browsers are increasingly playing nice with CSS, another problem has become very topical: managing the complexity in stylesheets as our in-browser apps get larger and larger. SCSS is an indispensable tool for dealing with this.

This isn't an introduction to the language by a long shot; many things probably won't make sense unless you have some SCSS under your belt already. That said, if you're not yet comfy with the basics, check out the aweso

	# Version key/value should be on his own line
	PACKAGE_VERSION=$(cat package.json \
	\| grep version \
	\| head -1 \
	\| awk -F: '{ print $2 }' \
	\| sed 's/[",]//g')

	echo $PACKAGE_VERSION


	// A thing I want to do
	// This flow only involves one promise, for example an ajax call
	// None of the subsequent `then` or `catch` calls, return new promises.



	var explode = false;
	var promise = new Promise(function(resolve, reject) {
	if (explode) {

-# delete local tag '12345'
-git tag -d 12345
-# delete remote tag '12345' (eg, GitHub version too)
-git push origin :refs/tags/12345
-# alternative approach
-git push --delete origin tagName
-git tag -d tagName

	# found at:
	# http://stackoverflow.com/questions/1895059/git-revert-to-a-commit-by-sha-hash

	# reset the index to the desired tree
	git reset --hard 56e05fced

	# move the branch pointer back to the previous HEAD
	git reset --soft HEAD@{1}

	git commit -m "Revert to 56e05fced"

	/**
	Problem:

	You have a javascript array that likely has some duplicate values and you would like a count of those values.
	Solution:

	Try this schnippet out.
	*/

	# Assuming an Ubuntu Docker image
	$ docker run -it <image> /bin/bash