Has anyone written a CLI tool/script that when given a file path (to a .ex or .exs) file and a line number, will return the module name and function? i.e. $ extract_line_number.bash ~/code/my_cool_proj/lib/utils.ex:15 MyCoolProj.Utils.find_by_id/2 This could be probably be built using the Elixir t…

Ah, that’s a good idea. I’ll give that a try when I have a chance. Thanks!

I never tried ast-grep for that in particular but anything that uses TreeSitter (like that tool) should be able to do it.

It would have to be in conjunction with a scripting language. Maybe a terser way but I was thinking along these lines: ast-grep scan --inline-rules ' id: find-def language: Elixir rule: any: - pattern: def $$$ - pattern: def $$$() - pattern: def $$$($$$) ' --json=compact -- path/to/…

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CLI tool to get function name from line of source code

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sodapopcan November 21, 2025, 6:59pm 2

You should be able to use ast-grep for this.