Re: [Haskell-cafe] createProcess fails to find executable in Windows

25 Oct 2012

      On Thu, Oct 25, 2012 at 12:10 PM, Jesse Schalken wrote:
...
What if you ran the program from within the directory that contains
git.exe?
That seems to work.
...
Can you check that the PATH environment variable is set correctly from
within the program?
If I run `system "echo %PATH%"` it shows me the expected %PATH%, including
the directory
where the git binary lives.

Thanks,
Pedro
...
On Thu, Oct 25, 2012 at 10:05 PM, José Pedro Magalhães wrote:
...
Hi all,
Consider the following program:
module Test where
...
import System.Process (readProcess)
main :: IO ()
main = readProcess "git" ["describe", "--tags"] "" >>= putStr
In Windows I get the following behaviour:
...
git --version
git version 1.7.10.msysgit.1
...
ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.6.1
...
runghc Test
Test: git: createProcess: does not exist (No such file or directory)
The same happens with GHC 7.4.2. In Linux, however, it works as expected:
$ git --version
...
git version 1.7.9.5
$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.4.1
$ runghc Test.hs
Package-2.0-68-gacaf77a
Can anyone reproduce this result in Windows? Is this a bug or am I doing
something wrong?
Thanks,
Pedro
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