@U04V15CAJ what am I doing wrong here?

foo (shell {:extra-env {:FOO "BAR"}}
           "echo $FOO")             

$ bb foo
$FOO

user=> (-> (process '[sh -c "echo $FOO"] {:env {:FOO "BAR"}}) :out slurp)
"BAR\n"

echo $FOO

Ah, okay, I was confused in thinking bash syntax is okay there. Either "printenv FOO" or pass the command to the shell with -c. I'm not familiar with Runtime.exec() - didn't quite understand its execution context. Thanks @U04V15CAJ.

This uses ProcessBuilder, not Runtime.exec, but it's similar. There is nothing bash specific in this since it works cross platform

That makes sense seeing as clojure and shell both return a bb/process, which is a wrapper for ProcessBuilder. I think it's a little unclear because shell returns a process, and process has sh, but not shell, but there's also clojure.java.shell which has a sh and they all kinda perform.. just about the same thing, but not quite. There's a lot of name overloading going on, which I suppose is intentional to make things familiar, but still makes my brain 🤯 a little 🙂 Just my impression as someone fairly new to this machinery. I don't know if the docs could clarify this for a newbie like me. But for what it's worth, I did search for "environment variable" and similar terms in the book and couldn't find what I was looking for. Maybe it's common enough of an operation that it should get a ctrl+f friendly mention? Thanks for the help @U04V15CAJ. Just wanted to provide some feedback. Appreciate your work 🙏

@alex.sheluchin Yes, you are absolutely right and this is on my TODO list, but feel free to make a PR to the book if you want to have it in there sooner :)

Thank you for sponsoring!

@U011NGC5FFY do you mean documentation on setting env vars? I think I added a blurb when this came up. https://github.com/babashka/book/commit/28e24277ec6c5ecaaec01abe3b644433b7cd06cb Does that cover it?

no, on the fact that shell is not a bash shell - so it does not do expansion + example on how to do expansion.

Babashka is open to pull requests from the community if you're feeling up to it.

If you think docs should be improved, please create PRs and/or issues

yeah thanks. I learned to ask first. Not all my ideas are great.Neither all people open to accept them, good or not.