ptsurko

import rosbag
import rospy
import s3fs

fs = s3fs.S3FileSystem(key="<access_key>", secret="<secret_key>")
with fs.open('<bag>/<key>', 'rb') as f:
    print('opened file')
    bag = rosbag.Bag(f, mode='r', allow_unindexed=True, skip_index=True)
    print('opened bag')
    print('version: ', bag.version)

ptsurko

Create homebrew formula

Create formula file for installation package

brew create https://github.com/bazelbuild/bazel/archive/0.2.0.tar.gz --no-fetch

This will create formula file in /usr/local/Library/Formula/<formula_name>.rb

Update formula file with installation instructions

ptsurko

Github pages autodeploy using Travis CI

Create an OAuth token

Use https://github.com/settings/tokens/new

Install Travis CLI

npm install pwmckenna/node-travis-encrypt -g

ptsurko

Auto-deploying built products to gh-pages with Travis

This is a set up for projects which want to check in only their source files, but have their gh-pages branch automatically updated with some compiled output every time they push.

Create a compile script

You want a script that does a local compile to e.g. an out/ directory. Let's call this compile.sh for our purposes, but for your project it might be npm build or gulp make-docs or anything similar.

The out/ directory should contain everything you want deployed to gh-pages. That almost always includes an index.html.

ptsurko

class classmethod(object):
    def __init__(self, func):
        self.func = func

    def __get__(self, instance, klass):
        if klass is None:
            klass = type(instance)

        def newfunc(*args, **kwargs):
            return self.func(klass, *args, **kwargs)

ptsurko

using System;
using System.Collections.Generic;

namespace TwitterTest
{

    public class Solver
    {
        private readonly int[] _walls;

ptsurko

var Animal = (function() {
    var heartRate;  //private variable available in prototype functions
    function Animal() {
        heartRate = 90;
        console.log('heart rate: ' + heartRate);
    };
    Animal.prototype = {
        constructor: Animal,
        doDance: function() {
            heartRate = 120;