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Haskell in Nixpkgs/NixOS

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For discussions and questions about Haskell with Nix, cabal2nix and haskellPackages in nixpkgs | Current Docs: https://haskell4nix.readthedocs.io/143 Servers

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20 Feb 2026
@woobilicious:matrix.orgwoobilicious yeah I also don't know how it's sane to parse... I guess '' blah '' ${def} is invalid syntax, but still 00:10:26
@alexfmpe:matrix.orgalexfmpeneeds to know what goes after the '' to determine if it's the $ or we're ending the literal00:11:45
@woobilicious:matrix.orgwoobiliciousMentally parsing it definitely sucks, that has got to be the worst design idea beating space seperated lists by a tone. 00:13:42
@woobilicious:matrix.orgwoobilicious I guess it makes it easier to read than having like \\\\\\ -> ''\''\''\ 00:21:04
@woobilicious:matrix.orgwoobiliciousWho should I at in the PR?01:04:28
@woobilicious:matrix.orgwoobiliciousnevermind I think I found the list.01:07:57
@sternenseemann:systemli.orgsterni (he/him) woobilicious: we should run at least some of the tests with sbv given how much intervention it needs 10:44:46
@sternenseemann:systemli.orgsterni (he/him)45min test execution time is not really a problem in most cases10:45:08
@woobilicious:matrix.orgwoobilicious sterni: upstream recommends turning tests off, and I have zero clue how to disable test sets and a lot of them are broken due to nix paths being checked in the test suite. I don't know what you mean by "given how much intervention it needs", the package has been marked for 3 years as broken only due to missing optional binaries, the aforementioned path mismatches causing test failures. SBV seems to be working for me fine here. Note that sbv tests do code generation for SAT solvers, and then calls those SAT solves, these are not trivial fixes. 12:08:20
@magic_rb:matrix.redalder.orgmagic_rb alexfmpe
the escape character for "" is \, the escape character(s) for '''' is ''
12:39:32
@magic_rb:matrix.redalder.orgmagic_rbthey work exactly the same12:39:36
@sternenseemann:systemli.orgsterni (he/him) woobilicious: well you wrote a patch for the path issues, so it should work 12:54:02
@sternenseemann:systemli.orgsterni (he/him)the code gen and execution part means that we have little confidence it will work at runtime which the test suite helps with12:54:51
20 May 2021
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