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Bernhard Häussner bxt

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bxt / sinuosity.md
Created March 14, 2014 20:59
Rivier sinuosity

Nile. Length: 6852 km. Linear: 3700 km. Sinuosity: 1.85. Amazon. Length: 6448 km. Linear: 3000 km. Sinuosity: 2.15.

@bxt
bxt / build-coffeescript.sh
Last active August 29, 2015 14:00
Build coffeescript file
#!/bin/bash
if [ $# -ne 1 ]; then
echo "Usage: $(basename $0) COFFEEFILE"
echo " - Compile COFFEEFILE into a minified javascript on file changes."
exit 64
fi
COFFEE=coffee
UGLIFYJS=uglifyjs
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bxt / #SQL-Window-Functions-README.md
Last active August 29, 2015 14:00
SQL Window Functions Example Code

SQL Window Functions Example Code

This gist will contain some example code using SQL window functions. The code is made for PostgreSQL 9.1.9 and may or may not be compatible to other databases. MySQL is certainly not supported as it currently (2014) lacks support for window functions alltogether. The code creates, modifies and deletes some tables (see 05_cleanup.sql), so make sure to run it in a fresh db if you are not sure this does not mess with your existing data.

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bxt / hash_building.rb
Last active August 29, 2015 14:02
Building a hash in Ruby
# These three do the same thing:
[:type, :action].each_with_object({}) {|m,h| h[m] = order.send(m)}
[:type, :action].inject({}) {|h,m| h[m] = order.send(m); h}
Hash[[:type, :action].map {|m| [m, order.send(m)]}]
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bxt / .htaccess
Created November 26, 2014 17:35
Simple .htaccess file
<Files ~ "^\.(htaccess|htpasswd)$">
deny from all
</Files>
Options Indexes
AuthUserFile /etc/apache2/.htpasswd
AuthGroupFile /dev/null
AuthName "Temporarily blocked! Please contact your webmaster"
AuthType Basic
require valid-user
order deny,allow
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bxt / 20150202171513_switch_type_of_state_to_enum.rb
Created February 2, 2015 18:11
class SwitchTypeOfStateToEnum < ActiveRecord::Migration
class Order < ActiveRecord::Base
enum state: [ :pending, :running, :success, :failed ]
end
def change
rename_column :orders, :state, :state_old
add_column :orders, :state, :integer
reversible do |dir|
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bxt / higher-order-functions.js
Created February 4, 2015 02:41
Higher order functions chain (compose) and accessor for JS, highly useful for d3.js
function acc(i) {
return function(d) {
return d[i];
}
}
function ch(a,b) {
return function(d) {
return a(b(d));
}
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bxt / start-urxvt.sh
Last active September 22, 2015 10:22 — forked from anonymous/start-urxvt.sh
Starting urxvt with nice colors, size and position
urxvt -depth 32 -bg rgba:ff00/f900/db00/dddd -bd rgba:ff00/f800/d000/dddd -fg rgba:0000/0000/0000/eeee -sr -scrollstyle plain -geometry 140x37+$[ 50 + $[ RANDOM % 100 ]]+$[ 500 + $[ RANDOM % 200 ]]
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bxt / bxt_fileList.php
Created February 26, 2011 14:57
List all files into an array, no dirs, optianally filtered by extension (using scandir)
<?php
function bxt_fileList($d,$x=false){
foreach(scandir($d) as $f)if(is_file($d.'/'.$f)&&(!$x||preg_match('/'.$x.'$/i',$f)))$l[]=$f;
return $l;
}
// silly "ninja" comment code from
// http://de3.php.net/manual/en/function.scandir.php#90628
function file_list($d,$x){
foreach(array_diff(scandir($d),array('.','..')) as $f)if(is_file($d.'/'.$f)&&(($x)?ereg($x.'$',$f):1))$l[]=$f;
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bxt / javascript-multitester.js
Created February 26, 2011 15:29
Interesting method to do multi-value-testing in JS
({abc:1,def:1,jkl:1}[xyz])
// nearly the same as:
( xyz=="abc" || xyz=="def" || xyz=="jkl" )
// and....
(function(){switch(pn) {
case "prv":return "previous";
case "nxt":return "next";
}})()