tests: make test-config-env.py a little less hacky Overriding os.path.isdir to always returns False is very confusing. Let's make it more explicit by specifically not returning any defaultrc/ configs. Differential Revision: https://phab.mercurial-scm.org/D7623

help: get helptext/ data from `resources` module if available For PyOxidizer, we need to read configs using the `resources` module. This patch makes it so we use that module if available (i.e. Python >= 3.7). It does that by adding a new `open_resource()` function to our `resourceutil` module. Tested by running `$PYTHON ./hg help pager` for each $PYTHON in {python2, python3.6, python3.7}. Differential Revision: https://phab.mercurial-scm.org/D7622

pycompat: allow pycompat.sysbytes() even if input already is bytes pycompat.sysstr() on py3 accepts an input that's already str (i.e. unicode). This patch makes it so pycompat.sysbytes() on py3 accepts an input that's already bytes. Allowing that makes it possible to do pycompat.sysbytes(fp.name) where fp.name is either bytes or unicode, as we'll get when fp can come from either open() or resources.open_binary(). Differential Revision: https://phab.mercurial-scm.org/D7621

merge with stable

rust-cpython: do not convert warning pattern to utf-8 bytes On Unix, both Rust Path and Mercurial expect a locale-dependent bytes, and we don't support Windows yet. Differential Revision: https://phab.mercurial-scm.org/D7614

rust-cpython: import utils::files::* function at module level IIRC, it's common in Rust to call functions with the module prefix. Differential Revision: https://phab.mercurial-scm.org/D7613

py3: send bytes from Rust-created warning patterns Python code expects bytes in both Python 2 and Python 3, so we should send bytes. Differential Revision: https://phab.mercurial-scm.org/D7612

py3: pass bytes to `configint` and `configbool` Both functions require bytes, even in Python 3. Differential Revision: https://phab.mercurial-scm.org/D7611