[Xen-devel] [PATCH 07/13] tools/pygrub: store kernels in /var/run/xen/pygrub

[Olaf Hering <olaf@xxxxxxxxx>]

Move location of temporary bootfiles from /var/run/xend/boot to
/var/run/xen/pygrub. Create the subdirectory if does not exist.
The <dir> argument --output-directory must be an existing directory.

The reason for this change is that all entrys below /var/run have to be
created at runtime in case /var/run is cleared on every boot.

Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
---
 tools/pygrub/src/pygrub | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/pygrub/src/pygrub b/tools/pygrub/src/pygrub
index 2618e11..9d8c5a1 100644
--- a/tools/pygrub/src/pygrub
+++ b/tools/pygrub/src/pygrub
@@ -14,6 +14,7 @@
 #
 
 import os, sys, string, struct, tempfile, re, traceback
+import errno
 import copy
 import logging
 import platform
@@ -778,7 +779,7 @@ if __name__ == "__main__":
     debug = False
     not_really = False
     output_format = "sxp"
-    output_directory = "/var/run/xend/boot"
+    output_directory = "/var/run/xen/pygrub"
 
     # what was passed in
     incfg = { "kernel": None, "ramdisk": None, "args": "" }
@@ -829,11 +830,17 @@ if __name__ == "__main__":
                 sys.exit(1)
             output_format = a
         elif o in ("--output-directory",):
+            if not os.path.isdir(a):
+                print "%s is not an existing directory" % a
+                sys.exit(1)
             output_directory = a
 
     if debug:
        logging.basicConfig(level=logging.DEBUG)
 
+    if not os.path.isdir(output_directory):
+        os.mkdir(output_directory, 0700)
+
     if output is None or output == "-":
         fd = sys.stdout.fileno()
     else:

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