localrepo: fix deprecation warning version of wfile The patch lingered a bit too long in my local clone and I messed up when I updated the version number. Since nobody caught it, I'm fixing the version after the fact.

util: explicitly tests for None Changeset 8b6927eb7efd removed the mutable default value, but did not explicitly tested for None. Such implicit checking can introduce semantic and performance issue. We move to an explicit check for None as recommended by PEP8: https://www.python.org/dev/peps/pep-0008/#programming-recommendations

context: simplify call to icase matcher in 'match()' The two function takes the very same arguments. We make this clearer and less error prone by dispatching on the function only and having a single call point in the code.

py3: make sure using bytes status char rather than ascii values 'MAR!?IC' is converted to their ascii values when slicing through it. This patch uses pycompat.iterbytestr() to get bytes value.

shelve: get rid of ui.backupconfig

rebase: get rid of ui.backupconfig

mq: get rid of ui.backupconfig

histedit: get rid of ui.backupconfig

record: get rid of ui.backupconfig

import: get rid of ui.backupconfig

clone: get rid of ui.backupconfig

commit: get rid of ui.backupconfig

branchmap: handle nullrev in setcachedata 906be86990 recently changed to switch from: self._rbcrevs[rbcrevidx:rbcrevidx + _rbcrecsize] = rec to pack_into(_rbcrecfmt, self._rbcrevs, rbcrevidx, node, branchidx) This causes an exception if rbcrevidx is -1 (i.e. the nullrev). The old code handled this because python handles out of bound sets to arrays gracefully. The new code throws because the self._rbcrevs buffer isn't long enough to write 8 bytes to. Normally it would've been resized by the immediately preceding line, but because the 0 length buffer is greater than the idx (-1) times the size, no resize happens. Setting the branch for the nullrev doesn't make sense anyway, so let's skip it. This was caught by external tests in the Facebook extensions repo, but I've added a test here that catches the issue.

py3: call codecs.escape_encode() directly string_escape doesn't exist on Python 3, but fortunately the undocumented codecs.escape_encode() function exists on CPython 2.6, 2.7, 3.5 and PyPy 5.6. So let's use it for now. http://stackoverflow.com/a/23151714

templatekw: make join() escape values of extras (BC) (issue5504) Since extras may contain blob, the default template escapes its values: 'extra': '{key}={value|stringescape}' join() should follow the output style of the default template.