[Xen-changelog] [xen-unstable] Break out the Python path interrogation into a separate script. This has the

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Ewan Mellor <ewan@xxxxxxxxxxxxx>
# Date 1170334133 0
# Node ID afb41f6bc30a9bde738f355b401f7ae6bcaf3d7d
# Parent  f73e71aa0a9036e759f5fecadf5fbe4a511fda80
Break out the Python path interrogation into a separate script.  This has the
advantage that the temporary path manipulation cannot affect the main script,
and that it can be shared with other programs, such as xm-test.

Signed-off-by: Ewan Mellor <ewan@xxxxxxxxxxxxx>
---
 tools/misc/Makefile        |    2 +-
 tools/misc/xen-python-path |   41 +++++++++++++++++++++++++++++++++++++++++
 tools/misc/xend            |   22 ++++++----------------
 3 files changed, 48 insertions(+), 17 deletions(-)

diff -r f73e71aa0a90 -r afb41f6bc30a tools/misc/Makefile
--- a/tools/misc/Makefile       Thu Feb 01 11:55:31 2007 +0000
+++ b/tools/misc/Makefile       Thu Feb 01 12:48:53 2007 +0000
@@ -12,7 +12,7 @@ TARGETS  = xenperf xc_shadow
 TARGETS  = xenperf xc_shadow
 
 INSTALL_BIN  = $(TARGETS) xencons
-INSTALL_SBIN = netfix xm xen-bugtool xend xenperf
+INSTALL_SBIN = netfix xm xen-bugtool xen-python-path xend xenperf
 
 .PHONY: all
 all: build
diff -r f73e71aa0a90 -r afb41f6bc30a tools/misc/xen-python-path
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/misc/xen-python-path        Thu Feb 01 12:48:53 2007 +0000
@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+#  -*- mode: python; -*-
+#============================================================================
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of version 2.1 of the GNU Lesser General Public
+# License as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#============================================================================
+# Copyright (C) 2007 XenSource Inc.
+#============================================================================
+
+
+# Use the auxbin module in Xend to determine the correct Python path.  We
+# take the first installed instance of auxbin that we find, and then run it
+# to determine the correct path, appending that to sys.path.
+
+AUXBIN = 'xen/util/auxbin.py'
+
+import os
+import os.path
+import sys
+
+for p in ['python%s' % sys.version[:3], 'python']:
+    for l in ['/usr/lib64', '/usr/lib']:
+        d = os.path.join(l, p)
+        if os.path.exists(os.path.join(d, AUXBIN)):
+            sys.path.append(d)
+            import xen.util.auxbin
+            print os.path.join(xen.util.auxbin.libpath(), p)
+            sys.exit(0)
+
+print >>sys.stderr, "Cannot find Xen Python modules."
+sys.exit(1)
diff -r f73e71aa0a90 -r afb41f6bc30a tools/misc/xend
--- a/tools/misc/xend   Thu Feb 01 11:55:31 2007 +0000
+++ b/tools/misc/xend   Thu Feb 01 12:48:53 2007 +0000
@@ -31,23 +31,13 @@ import time
 import time
 import commands
 
+result = commands.getstatusoutput(os.path.join(os.path.dirname(sys.argv[0]),
+                                               'xen-python-path'))
+if result[0] != 0:
+    print >>sys.stderr, result[1]
+    sys.exit(1)
 
-# Use the auxbin module in Xend to determine the correct Python path.  We
-# take the first installed instance of auxbin that we find, and then run it
-# to determine the correct path, appending that to sys.path.
-
-AUXBIN = 'xen/util/auxbin.py'
-
-for p in ['python%s' % sys.version[:3], 'python']:
-    for l in ['/usr/lib64', '/usr/lib']:
-        d = os.path.join(l, p)
-        if os.path.exists(os.path.join(d, AUXBIN)):
-            sys.path.append(d)
-            import xen.util.auxbin
-            libpath = os.path.join(xen.util.auxbin.libpath(), p)
-            sys.path = sys.path[:-1]
-            sys.path.append(libpath)
-            break
+sys.path.append(result[1])
 
 from xen.xend.server import SrvDaemon
 

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