remy

// MIT http://rem.mit-license.org

function trim(c) {
  var ctx = c.getContext('2d'),
    copy = document.createElement('canvas').getContext('2d'),
    pixels = ctx.getImageData(0, 0, c.width, c.height),
    l = pixels.data.length,
    i,
    bound = {
      top: null,

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)

andreadipersio

# inspired by
# Master NGINX - Dimitri Aivaliotis
# http://www.amazon.com/Mastering-NGINX-Dimitri-Aivaliotis-ebook/dp/B00B90PJR4
# Chapter 8 - Switching binaries at runtime

# We get the pid of the 'to be replaced' nginx master process
export nginx_old_pid=`cat /var/run/nginx.pid`

# we send an USR2 signal to tell 'to be replaced' process
# to start a new master process.

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

cinsk

#!/bin/bash

PATH=/bin:/usr/bin:/usr/local/bin

check-nfs () {
    local TMPFILE=/tmp/checknfs.$$ RET=0 ORPHAN SUBSHELLPID

    if [ "$#" -eq 0 ]; then
        cat<<EOF
usage: check-nfs NFS-DIRECTORY...

uupaa

1. Audio(url)
2. Audio(arraybuffer)
3. Audio(blob)
4. WebAudio(arraybuffer)
5. WebAudio(blob)

Audio file access with streaming

http://uupaa.net/issues/3/ の結果

kathawala

#!/bin/bash

( echo "PACKAGE SIZE(K)";

for A in /var/lib/pacman/local/*/desc; do
  egrep -A1 '%(NAME|SIZE)' $A  \
   | gawk '/^[a-z]/ { printf "%s ", $1 }; /^[0-9]/ { printf "%.0f\n", $1/1024 }'

done | sort -nrk2 ) | column -t

protrolium

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

spalladino

# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

evantoli

Configure Git to use a proxy

In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like: