[PATCH 1 of 3 V2] convert: Add support to common commandline to access stdin of the process

[daniel.atallah at gmail.com]

# HG changeset patch
# User Daniel Atallah <daniel.atallah at gmail.com>
# Date 1300906529 14400
# Branch stable
# Node ID 0fb617760b931cd25537e3362af52b2cfbd1a329
# Parent  913c2c66a555934cab9bcdac3412703256f9cdf2
convert: Add support to common commandline to access stdin of the process

diff --git a/hgext/convert/common.py b/hgext/convert/common.py
--- a/hgext/convert/common.py
+++ b/hgext/convert/common.py
@@ -233,6 +233,7 @@
     def __init__(self, ui, command):
         self.ui = ui
         self.command = command
+        self.redirectstdin = True
 
     def prerun(self):
         pass
@@ -257,16 +258,23 @@
         cmdline = [util.shellquote(arg) for arg in cmdline]
         if not self.ui.debugflag:
             cmdline += ['2>', util.nulldev]
-        cmdline += ['<', util.nulldev]
+        if self.redirectstdin:
+            cmdline += ['<', util.nulldev]
         cmdline = ' '.join(cmdline)
         return cmdline
 
     def _run(self, cmd, *args, **kwargs):
+        return self._dorun(util.popen, cmd, *args, **kwargs)
+
+    def _run2(self, cmd, *args, **kwargs):
+        return self._dorun(util.popen2, cmd, *args, **kwargs)
+
+    def _dorun(self, openfunc, cmd, *args, **kwargs):
         cmdline = self._cmdline(cmd, *args, **kwargs)
         self.ui.debug('running: %s\n' % (cmdline,))
         self.prerun()
         try:
-            return util.popen(cmdline)
+            return openfunc(cmdline)
         finally:
             self.postrun()