--- a/WebappConfig/ebuild.py	2006-12-30 19:38:36.000000000 +0100
+++ b/WebappConfig/ebuild.py	2009-11-22 18:12:55.000000000 +0100
@@ -24,6 +24,9 @@
 
 import os.path, re, pwd, grp
 
+from os import strerror
+from subprocess import PIPE, Popen
+from multiprocessing import Pipe
 from WebappConfig.debug     import OUT
 import WebappConfig.wrapper as wrapper
 from WebappConfig.sandbox   import Sandbox
@@ -93,6 +96,21 @@
 
     '''
 
+    class HookedScriptError(Exception):
+          ''' Exception thrown when a hook script fails '''
+
+          def __init__(self, script, errno):
+              self.errno = errno
+              self.script= script
+
+          def __str__(self):
+              cmd = "'" + self.script + "'"
+              if self.errno < 0:
+                 return cmd + " was terminated by signal " + repr(-self.errno)
+              else:
+                 return cmd + " terminated with error status " + repr(self.errno)
+
+
     def __init__(self, config):
 
         self.__root    = wrapper.get_root()
@@ -130,23 +148,32 @@
                     os.access(self.__hooksd + '/' + x, os.X_OK)):
 
                     OUT.debug('Running hook script', 7)
-
-                    fi, fo, fe = os.popen3(self.__hooksd + '/' + x + ' ' 
-                                           + type)
-                    fi.close()
-                    result_lines = fo.readlines()
-                    error_lines  = fe.readlines()
-                    fo.close()
-                    fe.close()
-
-                    if result_lines:
-                        for i in result_lines:
-                            OUT.notice(i)
-
-                    if error_lines:
-                        for i in error_lines:
-                            OUT.warn(i)
-
+                    cmd = self.__hooksd + '/' + x + ' '+ type
+                    try:
+                            p = Popen(cmd,shell=True,bufsize=1,stdin=None,
+                                      stdout=PIPE,stderr=PIPE,close_fds=True,
+                                      universal_newlines=True)
+
+                            (fo,fe) = p.communicate()
+
+                            if fo:
+                               OUT.notice(fo)
+
+                            if fe and p.returncode != 0:
+                               OUT.error(fe)
+                            else:
+                               OUT.warn(fe)
+
+                            if p.returncode:
+                               raise Ebuild.HookedScriptError(cmd, p.returncode)
+                               
+                    except Exception, e:
+                           sandbox.stop()
+                           # remove OUT.die when WebAppConfig finally
+                           # provides at least a catch-all exception handler
+                           # OUT.error(e) 
+                           OUT.die(e) 
+                           raise
         sandbox.stop()
 
     def show_post(self, filename, ptype, server = None):