[PATCH] Allow to override sync source

[Jan Kiszka <jan.kiszka@web.de>]

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In order to allow sync'ing the kmod dir against arbitrary kernels trees,
extend the sync script to accept alternative paths and adjust the
Makefile accordingly.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---

 Makefile |    3 ++-
 sync     |   14 +++++++++++---
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 1e0420e..dad5f0b 100644
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,7 @@ ORIGMODDIR = $(patsubst %/build,%/kernel,$(KERNELDIR))
 
 rpmrelease = devel
 
+KVM_VERSION = kvm-devel
 LINUX = ./linux-2.6
 
 ifeq ($(EXT_CONFIG_KVM_TRACE),y)
@@ -38,7 +39,7 @@ include $(MAKEFILE_PRE)
 .PHONY: sync
 
 sync:
-	./sync $(KVM_VERSION)
+	./sync -v $(KVM_VERSION) -l $(LINUX)
 
 install:
 	mkdir -p $(DESTDIR)/$(INSTALLDIR)
diff --git a/sync b/sync
index 4a89296..2e53a31 100755
--- a/sync
+++ b/sync
@@ -1,6 +1,7 @@
 #!/usr/bin/python
 
 import sys, os, glob, os.path, shutil, re
+from optparse import OptionParser
 
 glob = glob.glob
 
@@ -8,12 +9,19 @@ def cmd(c):
     if os.system(c) != 0:
         raise Exception('command execution failed: ' + c)
 
-version = 'kvm-devel'
-if len(sys.argv) >= 2:
-    version = sys.argv[1]
+parser = OptionParser(usage='usage: %prog [-v version][-l linuxkernel]')
+parser.add_option('-v', action='store', type='string', dest='version')
+parser.add_option('-l', action='store', type='string', dest='linux')
+(options, args) = parser.parse_args()
 
+version = 'kvm-devel'
 linux = 'linux-2.6'
 
+if options.version:
+    version = options.version
+if options.linux:
+    linux = options.linux
+
 _re_cache = {}
 
 def re_cache(regexp):


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