Mercurial > hg > mercurial-crew-with-dirclash
view hgext/win32text.py @ 5369:7530334bf301
revlog: generate trivial deltas against null revision
To avoid extra memory usage and performance issues with large files,
generate a trivial delta header for deltas against the null revision
rather than calling the usual delta generator.
We append the delta header to meta rather than prepending it to data
to avoid a large allocate and copy.
author | Matt Mackall <mpm@selenic.com> |
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date | Wed, 03 Oct 2007 17:17:27 -0500 |
parents | 8c5aca855b5d |
children |
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from mercurial import util, ui from mercurial.i18n import gettext as _ import re # regexp for single LF without CR preceding. re_single_lf = re.compile('(^|[^\r])\n', re.MULTILINE) def dumbdecode(s, cmd): # warn if already has CRLF in repository. # it might cause unexpected eol conversion. # see issue 302: # http://www.selenic.com/mercurial/bts/issue302 if '\r\n' in s: u = ui.ui() u.warn(_('WARNING: file in repository already has CRLF line ending \n' ' which does not need eol conversion by win32text plugin.\n' ' Please reconsider encode/decode setting in' ' mercurial.ini or .hg/hgrc\n' ' before next commit.\n')) # replace single LF to CRLF return re_single_lf.sub('\\1\r\n', s) def dumbencode(s, cmd): return s.replace('\r\n', '\n') def clevertest(s, cmd): if '\0' in s: return False return True def cleverdecode(s, cmd): if clevertest(s, cmd): return dumbdecode(s, cmd) return s def cleverencode(s, cmd): if clevertest(s, cmd): return dumbencode(s, cmd) return s util.filtertable.update({ 'dumbdecode:': dumbdecode, 'dumbencode:': dumbencode, 'cleverdecode:': cleverdecode, 'cleverencode:': cleverencode, })