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"""Implement interface to MH folders."""
from slime_abstract import *
import os
import mhlib2
mhlib = mhlib2 # kludge until Python accepts my modified mhlib.py
import StringIO2
StringIO = StringIO2
default_mh = None
def mh_top_folder():
"""Return SlimeFolder with top level MH folders."""
global default_mh
if not default_mh:
default_mh = mhlib.MH()
mhroot = SlimeFolder_MHroot(default_mh)
mhroot.open()
mhroot.rescan_subfolders()
if mhroot.list_all_subfolders():
mhroot.close()
return mhroot
mhroot.close()
return None
class SlimeFolder_MHroot(SlimeFolder):
"""Root of all MH folders."""
def __init__(self, mh):
SlimeFolder.__init__(self)
self._mh = mh
self._name = mh.getpath()
self._subfolders = []
def open(self):
self._is_open = 1
self.rescan_subfolders()
def close(self):
self._is_open = 0
def commit_changes(self):
self._assert_open()
def rescan_messages(self):
pass
def rescan_subfolders(self):
self._assert_open()
list = []
for name in self._mh.listfolders():
if not os.path.isabs(name):
name = os.path.join(self._mh.getpath(), name)
new = None
for subfolder in self._subfolders:
if name == repr(subfolder):
new = subfolder
break
if new is None:
new = SlimeFolder_MH(name, self._mh)
list.append(new)
self._subfolders = list
class SlimeFolder_MH(SlimeFolder):
"""Abstract interface to an MH mail folder."""
def __init__(self, name, mh):
SlimeFolder.__init__(self)
self.mh = mh
self._subfolders = []
self._name = os.path.join(mh.getpath(), name)
self.mh_folder = self.mh.openfolder(self._name)
self._last_message_scan = 0
def open(self):
self._is_open = 1
self._old_numbers = []
def close(self):
"""Close the folder."""
for msg in self._messages:
msg.uncache_headers()
self._is_open = 0
def rescan_messages(self):
self._assert_open()
dirname = self.mh_folder.getfullname()
dirmtime = os.stat(dirname)[8]
if dirmtime == self._last_message_scan:
return
self._last_message_scan = dirmtime
seq = self.mh_folder.getsequences()
if seq.has_key("unseen"):
unseen = seq["unseen"]
else:
unseen = []
numbers = self.mh_folder.listmessages()
list = []
for n in numbers:
if n in self._old_numbers:
for msg in self._messages:
if msg._id == n:
list.append(msg)
break
else:
msg = SlimeMessage_MH(self, n)
if n in unseen:
msg.set_status("N")
list.append(msg)
self._messages = list
self._old_numbers = numbers
self._threads = []
def rescan_subfolders(self):
oldlist = []
for old in self._subfolders:
oldlist.append(repr(old))
list = []
for name in self.mh_folder.listsubfolders():
fullname = os.path.join(self.mh.getpath(), name)
try:
i = oldlist.index(fullname)
new = self._subfolders[i]
except ValueError:
new = SlimeFolder_MH(name, self.mh)
list.append(new)
self._subfolders = list
def add_message(self, file):
self._assert_open()
f = self.mh_folder
n = f.getlast() + 1
f.createmessage(n, file)
msg = SlimeMessage_MH(self, n)
self._messages.append(msg)
self._old_numbers.append(n)
return msg
def commit_changes(self):
if self._dirty:
self._assert_open()
unseen = []
list = []
for msg in self._messages:
if msg.has_status("D"):
list.append(msg._id)
elif msg.has_status("N"):
unseen.append(msg._id)
self.mh_folder.removemessages(list)
seq = self.mh_folder.getsequences()
if seq.has_key("unseen"):
unseen.sort()
seq["unseen"] = unseen
self.mh_folder.putsequences(seq)
self._dirty = 0
self.rescan_messages()
class SlimeMessage_MH(SlimeMessage):
"""A SlimeMessage interface to mhlib.Message."""
def __init__(self, folder, id):
SlimeMessage.__init__(self, folder)
self._msg = None
self._id = id
def _open(self):
self._folder._assert_open()
self._open_count = self._open_count + 1
if not self._msg:
self._msg = mhlib.Message(self._folder.mh_folder,
self._id)
# make sure stuff is cached
if not self._cached_date:
self._cache_headers()
def _close(self):
self._folder._assert_open()
self._open_count = self._open_count - 1
if self._open_count == 0:
self._msg = None
def change_text(self, file):
self._folder._assert_open()
if self._open_count != 0:
raise Error, "change_text needs closed message"
filename = self._folder.mh_folder.getmessagefilename(self._id)
newname = filename + '.new'
f = open(newname, "w")
while 1:
buf = file.read(16*1024)
if not buf:
break
f.write(buf)
f.close()
os.rename(newname, filename)
self.uncache_headers()
def main():
root = mh_top_folder()
if not root:
print "no MH root"
else:
# root.open()
# root.rescan_subfolders()
# print root.list_all_subfolders()
# root.close()
foo(root)
def foo(folder):
folder.open()
folder.rescan_subfolders()
folder.close()
folder.open()
folder.rescan_subfolders()
print folder
for sub in folder.list_all_subfolders():
foo(sub)
folder.close()
def profile_main():
import time
f = mh_top_folder()
f.open()
f.rescan_subfolders()
for sub in f.list_all_subfolders():
if sub.get_nice_name() == "cola-incoming":
sub.open()
print "computing threads"
start = time.time()
sub.rescan_messages()
sub.list_all_threads()
end = time.time()
print "threads computed", end - start
sub.close()
f.close()
if __name__ == "__main__":
main()
|
