Posts
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Getting started with Wutch
Wutch is a python based live server that observes changes in the given directories and executes a shell command on each change. It also, optionally, renders the results in the default web browser, automatically refreshing each web page after every change.
You can use wutch with Sphinx, Jekyll, and other static site generators. On the GIF above you can see how wutch builds its own documentation. It behaves just like a live server. Adding any change causes a subprocess shell to run Sphinx (doc site generator used by wutch) to rebuild its docs in real time.
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Designing Twitter
This article describes several different approaches to designing a system like Twitter. The kind of task you could be asked to perform during a technical interview. Each presented architecture describes the system from a very high level, focusing on the main idea of the optimization or design rather than small details.
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Make Vim detect Pipenv based Python environment
Vim can be a great IDE. If I could you use just one word to describe it, that word would be “fast”. Vim can be easily configured to be a powerful IDE for Python development. However, as times change, as does the official recommended packaging tool for Python – it was Pip before, now it’s Pipenv, a high level wrapper around
pipandvirtualenv.
Setting up a proper integration between Vim and Pipenv may seem like a cumbersome task. It entirely depends on what you want to achieve. This article focuses on integration between Vim, Pipenv, and YouCompleteMe – a fast, fuzzy-search code completion engine for Vim. But some of the options described in the article are suitable for other setups as well.
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Perfect AWS CLI setup
I deploy to AWS a lot. I believe it’s fine to use AWS GUI when you explore things, but otherwise it is better to write scripts to achieve results. Be it Bash scripts that use AWS CLI or Python scripts that use boto3 library. Writing scripts guarantees that when you forget how to properly deploy a cluster of ElasticSearch instances and shards you will just use your script instead of researching AWS documentation again. AWS CLI is a Python library installed via pip.
I try to keep the installation of AWS CLI isolated from everything else. Making it possible to have multiple installations with different versions. Here is how I achieve that on MacOS.
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Choosing between Ruby environment managers: rbenv vs. RVM
Using a system’s default Ruby interpreter to develop projects and install required gemsets is a sure path to dependency nightmare. Each project needs its own environment independent from others. At the same time, the system’s installation of Ruby should be left intact.
This article gives a quick overview of the popular Ruby environment managers and provides a concise installation instruction for a painless setup on MacOS X.
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Writing an IntelliJ IDEA plugin to manage window layouts
There are many IntelliJ plugins out there. Still, existing SDK documentation does not cover every development step. Here I describe how a basic IntelliJ plugin with menu and import/export functionality can be developed.
