Platform Builders,
The current tar-ball generator doesn’t work with the latest cabal-install
(0.14.0).
In build.hs we have
--
-- Too sleepy. Future: solve this via the cabal library
--
let cmd = "cabal install --dry-run --reinstall " ++ (
intercalate " " [ package
| (_, package) <- urls
] ) ++ " > platform.packages.raw"
--writeFile "platform.packages.cmd" cmd
system cmd
src <- readFile "platform.packages.raw"
let programs = drop 2 $ lines src
writeFile "platform.packages" (unlines programs)
The problem is that ' cabal install --dry-run --reinstall' has become too
loquacious for
our convenience and is annotating the output with extra context. The first word
of the output still contains what we need (the package) so I have replaced the
second `let` binding above with this,
let fw ln = case words ln of { [] -> ""; p:_ -> p; }
programs = map fw $ drop 2 $ lines src
to get a sensible content for platform.packages (for a while).
The modified Build.hs can be found here:
https://github.com/cdornan/haskell-platform/blob/pre-release/src/generic/Build.hs
Chris
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