Skip to content

Instantly share code, notes, and snippets.

View jhrr's full-sized avatar

jhrr

26 followers · 26 following
  • Paradise
View GitHub Profile
@jhrr
jhrr / fakecassandra.py
Created October 11, 2013 08:52 — forked from mmalone/fakecassandra.py
# In-memory Cassandra-ish thingy... useful for unit tests. Maybe useful for other
# stuff too? No support for SuperColumns, but that should be easy enough to add.
import bisect
import copy
from cassandra.ttypes import NotFoundException, Column, ColumnPath, ColumnOrSuperColumn
class SSTable(object):
@jhrr
jhrr / git_svn_bash_prompt.sh
Created January 15, 2014 04:07 — forked from woods/git_svn_bash_prompt.sh
#!/bin/bash
#
# DESCRIPTION:
#
# Set the bash prompt according to:
# * the branch/status of the current git repository
# * the branch of the current subversion repository
# * the return value of the previous command
#
# USAGE:
@jhrr
jhrr / emacsd-tile.el
Created February 21, 2014 19:48 — forked from mariusae/emacsd-tile.el
;; emacsd-tile.el -- tiling windows for emacs
(defun swap-with (dir)
(interactive)
(let ((other-window (windmove-find-other-window dir)))
(when other-window
(let* ((this-window (selected-window))
(this-buffer (window-buffer this-window))
(other-buffer (window-buffer other-window))
(this-start (window-start this-window))
@jhrr
jhrr / whiteboardCleaner.md
Created April 17, 2014 15:18 — forked from lelandbatey/whiteboardCleaner.md

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

@jhrr
jhrr / gist:a21519ccda7d6e34cc70
Created May 8, 2014 13:57 — forked from bitemyapp/gist:8739525

This is my recommended path for learning Haskell.

Something to keep in mind: don't sweat the stuff you don't understand immediately. Just keep moving.

Primary course

Installing Haskell

Ubuntu PPA

@jhrr
jhrr / erlang-resources.md
Created June 20, 2014 15:56 — forked from macintux/erlang-resources.md
@jhrr
jhrr / tmux.md
Created July 23, 2014 14:45 — forked from andreyvit/tmux.md

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

@jhrr
jhrr / node-and-npm-in-30-seconds.sh
Last active August 29, 2015 14:09 — forked from isaacs/node-and-npm-in-30-seconds.sh
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl https://www.npmjs.org/install.sh | sh
@jhrr
jhrr / README.md
Last active August 29, 2015 14:09 — forked from addyosmani/README.md

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

@jhrr
jhrr / gpg-import-and-export-instructions.md
Last active August 29, 2015 14:14 — forked from chrisroos/gpg-import-and-export-instructions.md

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...