[Haskell-cafe] Ported a Python script for use with Go to Haskell
andrew.gibiansky at gmail.com
Sat Apr 5 15:48:33 UTC 2014
The script itself looks pretty good to me, but you might want to take a
look at Shelly <https://hackage.haskell.org/package/shelly>  for Haskell
scripting in the future. It's a really nice library / DSL for "bash"-like
scripting directly in Haskell. If you try out Shelly, I suggest trying it
with ClassyPrelude and -XOverloadedStrings, which makes dealing with all
the Text and FilePath types bearable. (Heh, though it's annoying, having
FilePath as a separate type once prevented me from writing code that
deleted my home directory upon being run... fun story.)
On Sat, Apr 5, 2014 at 4:33 AM, Kim-Ee Yeoh <ky3 at atamo.com> wrote:
> On Sat, Apr 5, 2014 at 5:21 PM, Robert Vollmert <rvollmert-lists at gmx.net>wrote:
>> - clobbering the environment by prepending to an association list makes
>> me wonder if that's really what happens when the variable is already defined
> Yes, that does raise flags.
> The haskell here:
> installEnv <- getEnvironment >>= return . (:) ("GOBIN", gOBIN)
> which I'd probably write as
> installEnv <- (("GOBIN", gOBIN) :) <$> getEnvironment
> doesn't match the python here:
> GOBIN = tempfile.gettempdir()
> os.environ['GOBIN'] = GOBIN
> in the sense that the case for a predefined GOBIN in the environment will
> lead to different results. At least I'll be surprised if otherwise.
> To Matt: have you tested your haskell version? You might want to take a
> look at System.Posix.Env.putenv.
> -- Kim-Ee
> Haskell-Cafe mailing list
> Haskell-Cafe at haskell.org
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