Ali Murteza Yesil Blog

Setup exercism CLI

📅 Mon 18 January 2021
Notes
💯 Day 36 of #100DaysToOffload 🏷️ beginner code 100DaysToOffload

Exercism.io has exercises for testing your programming skill. There are mentors checking students' submissions for errors and guiding them to sharpen their skills. But I think its CLI only program for downloading and uploading your code can be a turn-off for new students. I am writing this blog post to help you with easing the use of exercism command.

Warning !

I am following Rust language track on Exercism and I used it for examples. Remember to replace it with language track you are following.

Installing exercism command

The first time you are using exercism, you should be guided on how to install it on your computer. You may find that guide here. I use Linux but don't have "snap" on my computer. I also don't want to compile it from source code. Thankfully I am using Solus and Exercism command is available in Software Center under the name exercism-cli. I suggest you to search "exercism" on Software Center since it can easier for you.

After installation, run exercism version command on terminal. If exercism was installed properly, you should see which version of exercism command is installed.

Setting up user token

Exercism command cannot know who is downloading or submitting code without an identifying information. Every account has a token for identification, which can be found in Exercism > Account Settings > CLI Token. Copy it.

Next, go to terminal and type exercism configure --token= and then paste the token. If you find that CTRL + V not pasting the token, try CTRL + Shift + V or right-click on terminal window and select Paste.

Press enter. It may take a second or two, then you should be presented with a message similar to this:

You have configured the Exercism command-line client:

Config dir:                       /home/$USER/.config/exercism
Token:         (-t, --token)      $TOKEN_YOU_JUST_COPY_PASTED
Workspace:     (-w, --workspace)  /home/$USER/exercism
API Base URL:  (-a, --api)        https://api.exercism.io/v1

Congradulations 🎉

Changing default workspace (optional)

By default, Exercism puts all exercises into ~/exercism directory. This is fine, but I like keeping my home directory tidy. That is why I have Projects directory for the codes I write. I want Exercism stuff go into ~/Projects/exercism directory instead.

exercism configure --workspace ~/Projects/exercism command will change its default workspace to /home/$USER/Projects/exercism. You will be presented with a message similar to message you received after configuring the token.

Downloading & Submitting exercises

Command for downloading exercises is exercism download --track rust --exercise hello-world and submitting is exercism submit --track rust --exercise hello-world. But remembering these long commands can be difficult. Thankfully we have alias system in terminal which allows us to replace long commands with a short ones. With aliases I can use exercism-down-rust hello-world and exercism-up-rust hello-world instead.

echo 'alias exercism-down-rust="exercism download --track rust --exercise "' >> ~/.bashrc
echo 'alias exercism-up-rust="exercism submit --track rust --exercise "' >> ~/.bashrc

From now on, you can type exercism-down-rust hello-world to download "hello-world" exercise or type exercism-up-rust hello-world to submit "hello-world" exercise. Please remember to replace language track according to your track (maybe python, java, bash, emacs-lisp etc) and exercise name according to exercise you are doing.

Day 36 of #100DaysToOffload


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