Having multiple main functions on Go

Question

As a Python and Django developer, I can run any piece of code in my project using a script independently.

I am not too sure how to achieve the same thing in Go, as it looks like each Go project should only have one main executable file.

I'd like to call a function in my project from cronjob, but I'm not too sure how to add that. Using flags in my main function is the only way I can think of doing this. But it will look pretty confusing if my script accepts additional flags by itself like the following:

go run server.go --debug --another-flag --script-name <MY-SCRIPT> --my-script-flag-one <FLAG-ONE> --my-script-flag-two <FLAG-TWO>

Is there any elegant way of doing this?

Answer 1

You can have multiple main function in go but the package should be declared main. This way you can have multiple go scripts/file inside package main where each file will have main function. To run a file, you can directly execute the file like go run file.go which will only execute the main function of file you called.