lvm2/lvm2-2_02_99-python-update-example-to-work-with-lvm-object-removal.patch

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commit 10ba799ab08001d5435425e65f039f20cadd306e
Author: Tony Asleson <tasleson@redhat.com>
Date: Mon Oct 15 13:54:19 2012 -0700
python-lvm: Update example to work with lvm object removal.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Signed-off-by: Andy Grover <agrover@redhat.com>
---
python/example.py | 35 +++++++++++++++--------------------
1 file changed, 15 insertions(+), 20 deletions(-)
diff --git a/python/example.py b/python/example.py
index 67bb7e4..5c14ee1 100644
--- a/python/example.py
+++ b/python/example.py
@@ -31,9 +31,9 @@ def print_pv(pv):
#Dump some information about a specific volume group
-def print_vg(h, vg_name):
+def print_vg(vg_name):
#Open read only
- vg = h.vgOpen(vg_name, 'r')
+ vg = lvm.vgOpen(vg_name, 'r')
print 'Volume group:', vg_name, 'Size: ', vg.getSize()
@@ -55,13 +55,13 @@ def print_vg(h, vg_name):
vg.close()
#Returns the name of a vg with space available
-def find_vg_with_free_space(h):
+def find_vg_with_free_space():
free_space = 0
rc = None
- vg_names = l.listVgNames()
+ vg_names = lvm.listVgNames()
for v in vg_names:
- vg = h.vgOpen(v, 'r')
+ vg = lvm.vgOpen(v, 'r')
c_free = vg.getFreeSize()
if c_free > free_space:
free_space = c_free
@@ -72,13 +72,13 @@ def find_vg_with_free_space(h):
#Walk through the volume groups and fine one with space in which we can
#create a new logical volume
-def create_delete_logical_volume(h):
- vg_name = find_vg_with_free_space(h)
+def create_delete_logical_volume():
+ vg_name = find_vg_with_free_space()
print 'Using volume group ', vg_name, ' for example'
if vg_name:
- vg = h.vgOpen(vg_name, 'w')
+ vg = lvm.vgOpen(vg_name, 'w')
lv = vg.createLvLinear('python_lvm_ok_to_delete', vg.getFreeSize())
if lv:
@@ -93,11 +93,11 @@ def create_delete_logical_volume(h):
#Remove tag
lv.removeTag(t)
+ lv.deactivate()
+
#Try to rename
- lv.rename("python_lvm_ok_to_be_removed_shortly")
+ lv.rename("python_lvm_renamed")
print 'LV name= ', lv.getName()
-
- lv.deactivate()
lv.remove()
vg.close()
@@ -105,21 +105,16 @@ def create_delete_logical_volume(h):
print 'No free space available to create demo lv!'
if __name__ == '__main__':
- #Create a new LVM instance
- l = lvm.Liblvm()
-
#What version
- print 'lvm version=', l.getVersion()
+ print 'lvm version=', lvm.getVersion()
#Get a list of volume group names
- vg_names = l.listVgNames()
+ vg_names = lvm.listVgNames()
#For each volume group display some information about each of them
for vg_i in vg_names:
- print_vg(l, vg_i)
+ print_vg(vg_i)
#Demo creating a logical volume
- create_delete_logical_volume(l)
+ create_delete_logical_volume()
- #Close
- l.close()