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Folder-Maildir.savemessageflags(): Only parse file name if flags changed

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Rather than always parsing the filename, we only need to do so if the flags
have actually changed, otherwise we can keep the filename.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
This commit is contained in:
Sebastian Spaeth 2011-08-30 10:43:10 +02:00
parent de537dc09c
commit ff50585007
1 changed files with 13 additions and 11 deletions
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24
offlineimap/folder/Maildir.py
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@ -287,22 +287,24 @@ class MaildirFolder(BaseFolder):
"""Sets the specified message's flags to the given set.
This function moves the message to the cur or new subdir,
depending on the Seen flag."""
# TODO: This function could be improved to only parse the
# filenames if the flags actually changed.
depending on the 'S'een flag."""
oldfilename = self.messagelist[uid]['filename']
dir_prefix, filename = os.path.split(oldfilename)
# If a message has been seen, it goes into 'cur'
dir_prefix = 'cur' if 'S' in flags else 'new'
# Strip off existing infostring (preserving small letter flags that
# dovecot uses)
infomatch = self.flagmatchre.search(filename)
if infomatch:
filename = filename[:-len(infomatch.group())] #strip off
infostr = '%s2,%s' % (self.infosep, ''.join(sorted(flags)))
filename += infostr
newfilename = os.path.join(dir_prefix, filename)
if flags != self.messagelist[uid]['flags']:
# Flags have actually changed, construct new filename
# Strip off existing infostring (preserving small letter flags that
# dovecot uses)
infomatch = self.flagmatchre.search(filename)
if infomatch:
filename = filename[:-len(infomatch.group())] #strip off
infostr = '%s2,%s' % (self.infosep, ''.join(sorted(flags)))
filename += infostr
newfilename = os.path.join(dir_prefix, filename)
if (newfilename != oldfilename):
try:
os.rename(os.path.join(self.getfullname(), oldfilename),