GNU bug report logs -
#38946
guix import fails for cabal-helper
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bug#38946
; Package
guix
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(Sun, 05 Jan 2020 15:24:01 GMT)
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Sergiu Marton <brown121407 <at> gmail.com>
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
I've been trying to improve the Haskell tooling we have here on Guix, but
I ran into this problem: if I try to do ~guix import hackage
cabal-helper~ it fails with:
Syntax error: unexpected token : common (at line 76, column 0)
Syntax error: unexpected end of input
guix import: error: failed to download cabal file for package 'cabal-helper'
If I import ghc-mod (which depends on cabal-helper) recursively, I get this:
Syntax error: unexpected token : common (at line 76, column 0)
Syntax error: unexpected end of input
Backtrace:
13 (primitive-load "/home/brown/.config/guix/current/bin/g…")
In guix/ui.scm:
1806:12 12 (run-guix-command _ . _)
In guix/scripts/import.scm:
116:11 11 (guix-import . _)
In guix/scripts/import/hackage.scm:
132:26 10 (guix-import-hackage . _)
In guix/import/utils.scm:
425:7 9 (recursive-import _ _ #:repo->guix-package _ #:guix-name …)
397:31 8 (topological-sort _ #<procedure 7f74ceff4ed0 at guix/i…> …)
In srfi/srfi-1.scm:
592:29 7 (map1 _)
592:29 6 (map1 _)
592:29 5 (map1 _)
592:29 4 (map1 _)
592:29 3 (map1 ("monad-journal" "pipes" "cabal-helper"))
592:29 2 (map1 ("pipes" "cabal-helper"))
592:17 1 (map1 ("cabal-helper"))
In guix/import/utils.scm:
421:36 0 (lookup-node "cabal-helper")
guix/import/utils.scm:421:36: In procedure lookup-node:
Throw to key `vm-error' with args `(vm-run "Wrong number of values
returned to continuation (expected ~a)" (2))'.
Information forwarded
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bug-guix <at> gnu.org
:
bug#38946
; Package
guix
.
(Fri, 10 Jan 2020 17:41:01 GMT)
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Message #8 received at 38946 <at> debbugs.gnu.org (full text, mbox):
It appears that the guix cabal parser (in guix/import/cabal.scm) isn’t aware
of `common` stanzas.
https://www.haskell.org/cabal/users-guide/developing-packages.html#pkg-section-common-common
Note that there’s quite a few issues with the cabal parser, and the format is pretty
baroque, to the extent that I wonder whether it wouldn’t be better to delegate the
parsing to cabal itself.
E.g.:
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=35743
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=36690
I also remember some issue with braces instead of indentation, but can’t find a bug
report right now.
This bug report was last modified 4 years and 115 days ago.
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