osutil: allow disabling setprocname via a define passed to the compiler
In some situations, we run a custom python launcher that appears to not set up
Py_GetArgcArgv correctly. We then proceed to promptly crash when we attempt to
dereference NULL. Being able to completely disable setprocname is beneficial in
these situations, since we won't even attempt to use it, even if the case that
causes the crash is fixed.
Right now, if I compile osutil.so with -DSETPROCNAME_USE_NONE, the compilation
fails on python3 due to SETPROCNAME_USE_NONE redefinition. I could possibly
work around that, but it's likely helpful to have a way of disabling this
completely without it being brittle (i.e. if python3 ever gains the ability to
perform this operation).
Differential Revision: https://phab.mercurial-scm.org/D6865
stack: use repo.revs() instead of revsetlang.formatspec() + scmutil.revrange()
Using scmutil.revrange() it's possible to use multiple revsets at the same
time, but we're not using that functionality in stack.
I thought maybe that function could be used to make stack definition
customizable (by combining various parts into one set), but scmutil.revrange()
gives the union of all provided revsets, which is not very useful in stack's
case (we want "and" between parts, not "or").
merge: back out changeset
a4ca0610c754 (parents order when grafting a merge)
Turns out it's not enough to just swap parents, because when we do, there are
unexpected bad side effects, such as a tracked file becoming untracked. These
side effects need more code to be handled properly, but it's not written yet.
Let's back this feature out from stable for now and some day implement it on
default instead.
rust-hgpath: replace all paths and filenames with HgPath/HgPathBuf
Differential Revision: https://phab.mercurial-scm.org/D6774
rust-hgpath: add HgPath and HgPathBuf structs to encapsulate handling of paths
This change is a direct consequence of this discussion on the mailing list:
https://www.mercurial-scm.org/pipermail/mercurial-devel/2019-August/133574.html
The implementations of `HgPath` and `HgPathBuf` are, for the most part, taken
directly from `OsStr` and `OsString` respectively from the standard library.
What this change does *not* yet do is implement the Windows MBCS to WTF8
conversion, but it lays the basis for a very flexible interface for paths.
Differential Revision: https://phab.mercurial-scm.org/D6773