Implement treefmt's stdin spec #358
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jfly
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Nov 13, 2025
| toTargets Nixfmt{files = [], filename} = pure [stdioTarget filename] | ||
| toTargets Nixfmt{files = ["-"], filename} = pure [stdioTarget filename] | ||
| toTargets Nixfmt{files = [], stdin_filepath = Just filepath} = pure [stdioTarget filepath] | ||
| toTargets Nixfmt{files = _ : _, stdin_filepath = Just _} = error "Cannot specify both positional files and --stdin-filepath" |
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This seems wrong to me. Should I instead change the return type of toTargets? Pointers appreciated.
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This pull request has been mentioned on NixOS Discourse. There might be relevant details there: https://discourse.nixos.org/t/formatting-team-meeting-2025-11-11/72019/4 |
This completes #305
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Full disclosure: the treefmt stdin spec is not yet finalized (see numtide/treefmt#586). However, nothing prevents us from implementing the version of it that I hope will be approved.
This completes #305.
I have very little haskell knowledge. I'm sure there are issues with this implementation. Be kind, I'm excited to learn more!