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Only update key/value files if necessary

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update_key_val_in_file() shouldn't try and write to
a file if the key is already set to the given value
in the file

Rationale here is that if we write these files out
while building a system image, ipa-server-install
shouldn't need to re-write them and, therefore,
they don't need to be writable.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
This commit is contained in:
Mark McLoughlin 2007-12-13 09:31:28 +00:00
parent 2a036abe7a
commit 7ba901d777
1 changed files with 8 additions and 0 deletions
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8
ipa-server/ipaserver/krbinstance.py
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@ -58,6 +58,14 @@ def ldap_mod(fd, dn, pwd):
def update_key_val_in_file(filename, key, val):
if os.path.exists(filename):
pattern = "^[\s#]*%s\s*=\s*%s\s*" % (re.escape(key), re.escape(val))
p = re.compile(pattern)
for line in fileinput.input(filename):
if p.search(line):
fileinput.close()
return
fileinput.close()
pattern = "^[\s#]*%s\s*=" % re.escape(key)
p = re.compile(pattern)
for line in fileinput.input(filename, inplace=1):