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annotate mercurial/changelog.py @ 1677:11d12bd6e1dc

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cleanup of revlog.group when repository is local revlog.group cached every chunk from the revlog, the behaviour was needed to minimize the roundtrip with old-http. The patch export the information that the repository is local or not from the repository object down to the revlog. Then it uses the workaround for old-http only if the repository is non-local. The memory used server side when pulling goes down to less than 30Mo maximum whereas without the patch more than 160Mo was used when cloning the linux kernel repository. The time used by cloning is roughly the same (although some caching could be implemented if needed): before 110.25user 20.90system 2:52.00elapsed 76%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+708707minor)pagefaults 0swaps after 112.85user 22.98system 2:50.66elapsed 79%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+862862minor)pagefaults 0swaps
author Benoit Boissinot <benoit.boissinot@ens-lyon.org>
date Thu, 08 Dec 2005 15:12:02 +0100
parents 9d2c2e6b32b5
children b345cc4c22c0
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1 # changelog.py - changelog class for mercurial
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2 #
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3 # Copyright 2005 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7
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8 from revlog import *
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9 from i18n import gettext as _
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10 from demandload import demandload
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11 demandload(globals(), "os time util")
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12
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13 class changelog(revlog):
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14 def __init__(self, opener, local=True):
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15 revlog.__init__(self, opener, "00changelog.i", "00changelog.d",
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16 local=local)
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17
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18 def extract(self, text):
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19 if not text:
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20 return (nullid, "", (0, 0), [], "")
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21 last = text.index("\n\n")
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22 desc = text[last + 2:]
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23 l = text[:last].splitlines()
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24 manifest = bin(l[0])
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25 user = l[1]
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26 date = l[2].split(' ')
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27 time = float(date.pop(0))
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28 try:
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29 # various tools did silly things with the time zone field.
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30 timezone = int(date[0])
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31 except:
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32 timezone = 0
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33 files = l[3:]
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34 return (manifest, user, (time, timezone), files, desc)
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35
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36 def read(self, node):
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37 return self.extract(self.revision(node))
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38
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39 def add(self, manifest, list, desc, transaction, p1=None, p2=None,
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40 user=None, date=None):
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41 if date:
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42 # validate explicit (probably user-specified) date and
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43 # time zone offset. values must fit in signed 32 bits for
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44 # current 32-bit linux runtimes.
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45 try:
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46 when, offset = map(int, date.split(' '))
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47 except ValueError:
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48 raise ValueError(_('invalid date: %r') % date)
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49 if abs(when) > 0x7fffffff:
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50 raise ValueError(_('date exceeds 32 bits: %d') % when)
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51 if abs(offset) >= 43200:
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52 raise ValueError(_('impossible time zone offset: %d') % offset)
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53 else:
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54 date = "%d %d" % util.makedate()
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55 list.sort()
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56 l = [hex(manifest), user, date] + list + ["", desc]
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57 text = "\n".join(l)
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58 return self.addrevision(text, transaction, self.count(), p1, p2)