erichsu

#!/bin/sh
# brew install qemu
# stop Docker daemon
rm -rf ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/Docker.qcow2
qemu-img create -f qcow2 -o lazy_refcounts ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/Docker.qcow2 4G
# restart Docker daemon
# done...
# brew rmtree qemu

erichsu

var w = $('#whiteboard iframe')[0].contentWindow;
$('#whiteboard iframe').load(function() {
    // $(this).focus();
    
    if (window.location.search.substring(1) == 'con=yes') {
        w.Reveal.addEventListener('slidechanged', function(event) {
            // event.previousSlide, event.currentSlide, event.indexh, event.indexv
            socket.emit('slide', w.Reveal.getIndices());
        });
        w.Reveal.addEventListener('fragmentshown', function() {

erichsu

#!/bin/sh
cd /root
export PATH=/root/depot_tools:$PATH \
export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64 \
export GYP_DEFINES="OS=android"

apt-get update && apt-get install -y openjdk-7-jdk git curl software-properties-common && \
add-apt-repository multiverse
git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git && \
mkdir chromium && cd chromium

erichsu

private String md5(String input) {
    String md5 = null;
    try {
        MessageDigest digest = MessageDigest.getInstance("MD5");
        digest.update(input.getBytes(), 0, input.length());
        md5 = new BigInteger(1, digest.digest()).toString(16);
    } catch (NoSuchAlgorithmException e) {
        Timber.e(e.getLocalizedMessage(), e);
    }
    return md5;

erichsu

- (UIImage *)drawImage:(UIImage *)profileImage withBadge:(UIImage *)badge withText:(NSString *)count {
    UIGraphicsBeginImageContextWithOptions(profileImage.size, NO, 0.0f);
    [profileImage drawInRect:CGRectMake(0, 0, profileImage.size.width, profileImage.size.height)];
    [badge drawInRect:CGRectMake(profileImage.size.width - badge.size.width, 0, badge.size.width, badge.size.height)];
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, badge.size.width, badge.size.height)];
    label.text = count;
    label.textAlignment = NSTextAlignmentCenter;
    label.font = [UIFont systemFontOfSize:11.f];
    label.textColor = [UIColor whiteColor];
    [label drawTextInRect:CGRectMake(profileImage.size.width - badge.size.width, 0, badge.size.width, badge.size.height)];

erichsu

######################
# Options
######################
NULL=

REVEAL_ARCHIVE_IN_FINDER=false

FRAMEWORK_NAME="StreamingFramework"
#"${PROJECT_NAME}"

erichsu

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

erichsu

#!/bin/bash -e
set -e

## fetch
function fetch() { #$1=srcPath, $2=dstPath
  srcPath="$1"; dstPath="$2"
  srcName=$(basename "$srcPath")
  dstName=$(basename "$dstPath")
  if cmp -s "$srcPath" "$dstPath"; then
    echo "$dstName is already up-to-date ($srcName)"

erichsu

#ipfw show
# 00010 fwd 127.0.0.1,80 tcp from any to me dst-port 80 in
ipfw delete 00100
ipfw add 00100 fwd 127.0.0.1,20559 tcp from any to 127.0.0.1 dst-port 80 in

erichsu

#P4USER=
#P4PORT=
#P4CLIENT=
### Git functions
function git_branch {
    ref=$(git symbolic-ref HEAD 2> /dev/null) || return;
    echo "("${ref#refs/heads/}") ";
}
function git_p4_integ {
    BRANCH=$1