— Projects, Skill(Bash, ZSH, Shell), Skill(Docker), University-of-Waterloo — 1 min read
The university CS servers were down, so I built a Docker image and build-test script to let me keep working.
University of Waterloo's third year curriculum for Computer Science holds one of the more challenging courses of the program: CS350 Operating Systems (known by students as 'OS').
The OS course has students add core functionality to an existing operating system, Harvard's os161, written in C in 2000.
Given the bare bones nature of the OS, it has very specific build version requirements for GDB, G++, and Make that makes it very difficult to run locally on macOS.
With the school servers down at the beginning of the summer semester I was in a tight bind since I couldn't do my work for the first assignment. This led me to @Uberi's uw-cs350-development-environment repo which inspired me to build my own local setup.
My docker-cs350-os161 repo contains a lean Docker container built on Debian with all of the specific requirements to build os161. It is 24% smaller than any other images on Docker Hub.
I also built a comprehensive build script that includes many useful options and built in tests.
-b - only build, don't run after-c - continuous build loop-d - set debug mode to output debug text-m - only run, with gdb tmux panels-r - only run, don't build, don't run with gdb-t {} - run test {test alias}-l {} - loop all following tests {#} times and log result in logs/ directory-w - clear all logsIt was a fun project to keep adding in functionality that let me be more productive as I worked through assignments.
If you're going into CS350 soon, good luck! Feel free to use or fork my repo to get started faster.