##// END OF EJS Templates
localrepo.commit: normalize commit message even for rawcommit....
localrepo.commit: normalize commit message even for rawcommit. This normalization consists of: - stripping trailing whitespace - always using "\n" as the line separator I think the main reason rawcommit was skipping this normalization was an attempt to preserve hashes during an hg->hg conversion. While this is a nice goal, it's not particularly interesting in practice. Since SHA-1 is so strong, the only safe way to do it is to have absolutely identical revisions. But: - if the original revision was created with a recent version of hg, the commit message will be the same, with or without that normalization - if it was created with an ancient version of hg that didn't do any normalization, even if the commit message is identical, the file list in the changelog is likely to be different (e.g. no removed files), and there were some old issues with e.g. extra file merging, which will end up changing the hash anyway - in any case, if one *really* has to preserve hashes, it's easier (and faster) to fake a partial conversion using something like: hg clone -U -r rev orig-repo new-repo hg -R new-repo log --template '#node# #node#\n' > new-repo/.hg/shamap Additionally, we've had some reports of problems arising from this lack of normalization - e.g. issue871, and a user that was wondering why hg export/hg import was not preserving hashes when there was nothing unusual going on (it was just import doing the normalization that had been skipped). This also means that it's even more unlikely to get identical revisions when going $VCS->hg->$VCS.

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statichttprepo.py
86 lines | 2.7 KiB | text/x-python | PythonLexer
# statichttprepo.py - simple http repository class for mercurial
#
# This provides read-only repo access to repositories exported via static http
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
from i18n import _
import changelog, httprangereader
import repo, localrepo, manifest, util
import urllib, urllib2, errno
class rangereader(httprangereader.httprangereader):
def read(self, size=None):
try:
return httprangereader.httprangereader.read(self, size)
except urllib2.HTTPError, inst:
num = inst.code == 404 and errno.ENOENT or None
raise IOError(num, inst)
except urllib2.URLError, inst:
raise IOError(None, inst.reason[1])
def opener(base):
"""return a function that opens files over http"""
p = base
def o(path, mode="r"):
f = "/".join((p, urllib.quote(path)))
return rangereader(f)
return o
class statichttprepository(localrepo.localrepository):
def __init__(self, ui, path):
self._url = path
self.ui = ui
self.path = path.rstrip('/') + "/.hg"
self.opener = opener(self.path)
# find requirements
try:
requirements = self.opener("requires").read().splitlines()
except IOError, inst:
if inst.errno == errno.ENOENT:
msg = _("'%s' does not appear to be an hg repository") % path
raise repo.RepoError(msg)
else:
requirements = []
# check them
for r in requirements:
if r not in self.supported:
raise repo.RepoError(_("requirement '%s' not supported") % r)
# setup store
if "store" in requirements:
self.encodefn = util.encodefilename
self.decodefn = util.decodefilename
self.spath = self.path + "/store"
else:
self.encodefn = lambda x: x
self.decodefn = lambda x: x
self.spath = self.path
self.sopener = util.encodedopener(opener(self.spath), self.encodefn)
self.manifest = manifest.manifest(self.sopener)
self.changelog = changelog.changelog(self.sopener)
self.tagscache = None
self.nodetagscache = None
self.encodepats = None
self.decodepats = None
def url(self):
return 'static-' + self._url
def dev(self):
return -1
def local(self):
return False
def instance(ui, path, create):
if create:
raise util.Abort(_('cannot create new static-http repository'))
return statichttprepository(ui, path[7:])