def changeVGTags(self, vgName, delTags=(), addTags=()):
try:
vg_md = self.vgmd[vgName]
except KeyError:
raise se.VolumeGroupReplaceTagError("VG %s does not exist" %
vgName)
# Adding an existing tag or removing a nonexistent tag are ignored
tags = set(vg_md['tags'])
tags |= set(addTags)
tags -= set(delTags)
vg_md['tags'] = tuple(tags)
def changeVGTags(vgName, delTags=(), addTags=()):
delTags = set(delTags)
addTags = set(addTags)
if delTags.intersection(addTags):
raise se.VolumeGroupReplaceTagError(
"Cannot add and delete the same tag vg: `%s` tags: `%s`" %
(vgName, ", ".join(delTags.intersection(addTags))))
cmd = ["vgchange"]
for tag in delTags:
cmd.extend(("--deltag", tag))
for tag in addTags:
cmd.extend(("--addtag", tag))
cmd.append(vgName)
rc, out, err = _lvminfo.cmd(cmd, _lvminfo._getVGDevs((vgName, )))
_lvminfo._invalidatevgs(vgName)
if rc != 0:
raise se.VolumeGroupReplaceTagError(
"vg:%s del:%s add:%s (%s)" %
(vgName, ", ".join(delTags), ", ".join(addTags), err[-1]))
