Programming Elixir ≥ 1.6

Step 3: Make a Command-Line Executable

Although we can run our code by calling the run function via mix, it isn’t friendly for other users. So let’s create something we can run from the command line.

Mix can package our code, along with its dependencies, into a single file that can be run on any Unix-based platform. This uses Erlang’s escript utility, which can run precompiled programs stored as a Zip archive. In our case, the program will be run as issues.

When escript runs a program, it looks in your mix.exs file for the option escript. This should return a keyword list of escript configuration settings. The most important of these is main_module:, which must be set to the name of a module containing a main function. It passes the command-line ...