add back debug logging

Make Utility.Process wrap the parts of System.Process that I use,
and add debug logging to them.

Also wrote some higher-level code that allows running an action
with handles to a processes stdin or stdout (or both), and checking
its exit status, all in a single function call.

As a bonus, the debug logging now indicates whether the process
is being run to read from it, feed it data, chat with it (writing and
reading), or just call it for its side effect.
This commit is contained in:
Joey Hess 2012-07-19 00:43:36 -04:00
parent 549f861999
commit 1db7d27a45
17 changed files with 251 additions and 126 deletions

View file

@ -12,7 +12,6 @@ import qualified Annex
import Types.Backend
import Types.Key
import Types.KeySource
import System.Process
import qualified Build.SysConfig as SysConfig
import Data.Digest.Pure.SHA