Jobson: Webify CLI Applications

Oct 15, 2017

This is a post about Jobson, an application I developed and recently got permission to open-source along with its UI.

Do any of these problems sound familiar to you?:

I’d like my application to have a UI.

I want to trace my application’s usage.

I want to share my application.

They’re very common problems to have, and are almost always solved by building a UI in a framework (e.g. Qt, WPF), sprinkling on usage metrics, and packaging everything into a fat executable. In this post, I’d like to present an alternative.

Text Adventurer

Jul 30, 2017

One of the first things people learn when they start programming is how to write a text prompt. It’s a decades-old exercise that teaches new programmers input-output.

In order to inject a little excitement, learners are normally encouraged to write interactive games using standard IO. This helps them learn programming by interactively - they will need to learn conditional logic to handle the “Will you stab the monster with your sword or run away?” prompt.

This creative learning process is great but, unfortunately, it’s hard to show the creations to other people. Any players will have to undergo the nuisance of installing an interpreter, libraries, and the game in order to play. These deployment problems are alleviated on the web: javascript can be distributed and executed remotely in a browser with no effort required from the client.

Keep Side Projects Small

Jun 26, 2017

I’ve officially thrown a deployment of PlateyPlatey (PP) up onto plateyplatey.com (galley) along with its server and frontend source code. I previously explained PP in a blog post.

PP is missing many features I would of liked to have. However, a few weeks ago I took a long look in the mirror and decided to just tidy it then throw it up on the net. This let me start sharing it on sites such as reddit to gauge if anyone’s interested. After about a week of PP being up, I concluded that no, no one is interested and yes, I spent way too much time coming to that conclusion.

Low Level Programming

May 21, 2017

I haven’t posted in a while because I have been busy with a few random studies and projects.

Low level programming has always, to a high-level programmer like myself, felt like a mysterious playground where all the real hackers write graphics engines, password crackers, and operating systems. I have always had a fascination with people who can write something hardcore like an emulator. Sure, I can open a window, draw some graphics, and update the UI to reflect state changes. However, an application that does all that and some low-level wizardry is in an entirely different league of complexity.

Engineering Flexibility

Mar 14, 2017

It’s tempting to believe that having a flexible file format for a system’s configuration is enough to ensure forward-compatibility and flexibility as the system grows. The thought process is that with a suitable data format—for example, XML or JSON—extra information can be added without breaking existing systems. For adding new fields into the data, this is true. However, if you don’t engineer additional flexibility into the fields themselves then you may end up needing to make breaking changes anyway or, worse, end up with a much more complicated data file.

Imagine you are implementing an ecommerce server that exposes products. The spec for the server stipulates that there will only be a very small number of products. It also stipulates that rebooting the server to refresh the system with new products is fine. With that in mind, you add a products field to the server’s configuration:

port: 8080
products:
 - name: Acme Explosive
 - name: Fake Backdrop

The Cycle of Platform Maturity

Mar 4, 2017

In programming, “mature” is a funny word. When I first started programming, it had negative connotations. A “mature” programming language was boring, had complicated tools, over-complicated design patterns, and would likely die off soon. By contrast, non-mature languages were exciting, free-form, and carving out a new frontier in software.

My opinion has evolved since working as a programmer rather than studying as one. Mature now implies that a language will have have good debuggers and profilers. It will have an established build and testing systems for the language. Its core libraries won’t change midway through a critical project. Most importantly, though, mature languages (tend to) have moved past the same boring old problems that every language ecosystem encounters in its early days.

Just Make Stuff

Dec 17, 2016

Software development can be a bottomless well of languages, build environments, platforms, coding standards, and cat analysis algorithms. For someone who likes to study and learn new techniques, this is great. A bottomless well of stuff to better at. However, after almost ten years of doing just that, I’m willing to make a bold statement: curiosity can be maddening and knowledge can be hindrance.

Curiosity is maddening because the more I learn about assembler, linux, garbage collection, compiler theory, engineering techniques, software principles, functional programming, networking, etc. The more I’m convinced that I know almost nothing about computers.

PlateyPlatey

Oct 18, 2016

This blog post is about PlateyPlatey, a webapp I am developing to solve the (quite specific) problem I outline in this blog post. PlateyPlatey is in the very early prototype stages of development. I am having fun seeing how far I can develop it. If it saves even one researcher from the complete ballache of reorganizing research data, I will be ecstatic.

Once upon a time, I was a lab researcher. Boy, was it fun. This one time, I spent a month trying to crystallize a particularly annoying-to-crystallize molecule only to find that a decent proportion of the batch I was working with was actually silicone grease which, consequently, made crystallization impossible. Another time, my wrist twitched midway through adding LiAlH powder to a reaction and I managed to fill an entire schlenk line and vacuum pump with a mixture of corpse-scented phosphine and hazardous LiAlH powder. I now can’t smell phosphines without vomiting - fun.

Going Full Circle

Oct 3, 2016

Write code to control your application. Configure the code’s behavior using standard configuration files. After that, go full circle: write code to control the code that runs your application. In this blog post I’ll explain when you might want do that.

Free Online Courses

Sep 3, 2016

With the rise of free online courses, it’s becoming much easier to learn programming. Over time, more people will learn programming through those courses. Overall, this is a good thing. It means I’ll be able to buy a singing fridge sooner. However, beware of the dragons.

Big IT companies are suspiciously keen to provide free online software courses. Take bigdatauniversity.com for example. It’s a very slick site with lots of content. However, that content is tainted by the site’s ulterior motive: it doesn’t just want you to learn big data, it wants you to learn how IBM is the company to use if you’re working with big data.

So, instead of explaining abstract big data concepts, some of the material descends into the corporate agenda: how big data makes corporations’ wheels turn 15 % faster, improves customer turnover by a factor of 3, and how IBM could’ve gotten you all of that yesterday - for a small fee.