thirdparty: vendor cbor2 python library
CBOR stands for Concise Binary Object Representation, which is a data format
which is very compact and extensible.
This patch moves the python library which can serilaize and deserialize python
objects to/from cbor formats. The library is taken from
https://github.com/agronholm/cbor2/ from commit
84181540f6eb650437e3f73cd104a65661fe8e67.
Unrequired files from the cbor library - docs/, tests/, setup.py, setup.cfg,
and tox.ini - have not been vendored.
There is another python library for cbor at
https://github.com/brianolson/cbor_py/ which is used in evolve extension and was
imported in initial version of this series. That library though contains C code
and is bit faster, but has known bugs around serializing nested structures, is
unmaintained, raises an Exception object instead of a more dedicated Error type.
So, it's better to use a bug free and actively maintained library.
This library is not yet used and will be used in later commits.
# no-check-commit because we are importing a third library module
Differential Revision: https://phab.mercurial-scm.org/D2750
merge: deprecate accessing update results by index
Now that we have named attributes, let's convert the code base to use
them. We also add deprecation warnings so legacy consumers are aware
of their transgressions.
``stats.unresolvedcount`` is much easier to read than ``stats[3]``,
don't you think?
Differential Revision: https://phab.mercurial-scm.org/D2694
procutil: introduce context-manager interface for protect/restorestdio
The code looks slightly cleaner since it was pretty easy to pass arguments
in wrong order.
procutil: move protectio/restoreio from commandserver
Some variants of this will be useful for stdio-based servers such as
sshserver.
commandserver: rewrite protectio/restoreio to not depend on ui
Prepares for porting to utils.procutil, in which ui shouldn't be known.
ui.flush() is replaced with ui.fout.flush() since ui.ferr wasn't involved.
util: deprecate procutil proxy functions (API)
Several functions are re-exported by utils.procutil, which require explicit
modname parameter.
.. api::
Utility functions related to process/executable management have been moved
to utils.procutil module.
procutil: move process/executable management functions to new module
std* files, pipe helpers, and findexe()s are moved as well since they are
likely to be used with sub processes.
util: stop using readfile() in tempfilter()
To unblock code move to utils.*. It's merely two lines of very Pythonic code.
No helper function should be needed.