Today I Learned

A Hashrocket project

Shell Out With Elixir

Today I wrote a staging and production deploy script for Tilex, learning about System.cmd/3 along the way. The first argument to this function is the command, the second are arguments, and the third are options.

Here’s an example implementation from our script that deletes a Git tag and pushes that updated reference to origin:

System.cmd("git", ["tag", "-d", "staging"])
System.cmd("git", ["push", "origin", ":refs/tags/staging"])
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