[commit: ghc] wip/nfs-locking: Add support for both *.gz and *.bz2 archives, see #79. (fd3a1f8)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/nfs-locking
Link       : http://ghc.haskell.org/trac/ghc/changeset/fd3a1f89719fb551ed3f6579ef978ab304abe66c/ghc

>---------------------------------------------------------------

commit fd3a1f89719fb551ed3f6579ef978ab304abe66c
Author: Andrey Mokhov <andrey.mokhov at gmail.com>
Date:   Sun Jan 3 18:16:59 2016 +0000

    Add support for both *.gz and *.bz2 archives, see #79.


>---------------------------------------------------------------

fd3a1f89719fb551ed3f6579ef978ab304abe66c
 src/Settings/Builders/Tar.hs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Settings/Builders/Tar.hs b/src/Settings/Builders/Tar.hs
index 1f9f0ba..f59b1cf 100644
--- a/src/Settings/Builders/Tar.hs
+++ b/src/Settings/Builders/Tar.hs
@@ -1,10 +1,14 @@
 module Settings.Builders.Tar (tarBuilderArgs) where
 
+import Base
 import Expression
 import Predicates (builder)
 
 tarBuilderArgs :: Args
 tarBuilderArgs = builder Tar ? do
-    mconcat [ arg "-xzf"
-            , arg =<< getInput
+    input <- getInput
+    mconcat [ arg "-xf"
+            , ("*.gz"  ?== input) ? arg "--gzip"
+            , ("*.bz2" ?== input) ? arg "--bzip2"
+            , arg input
             , arg "-C", arg =<< getOutput ]