setup: drop legacy osx compiler tuning to enable universal builds
This was triggering deprecation warnings about migrating to `packaging.version`
from `distutils` Version classes with `make local`. But rather than migrate
that code, let's just get rid of some ~10-12 year old workarounds. As a bonus,
the cext libraries that are built are now universal binaries containing x86_64
and arm64 images (at least when built on macOS 11.4 with Xcode 12.5 and the
universal version of Python 3.9.13).
Several things to note here:
- Apple dropped support for 10.15 in Nov 2022, and OS X Lion that is
referenced is 10.7 (unsupported since late 2014)
- `xcode4` was basically always True because of the `>=` check (10.8 used
Xcode 5, and I have Xcode 10.2 on 10.14)
- `xcode51` was always False for modern-ish Xcode, because of the exact
version string matching
- Python 3.8 only supports OS X 10.9+; the Python 3.9.1+ universal installer
is macOS 11+ only, and Python 3.10 drops the x86_64 installer to deliver
only the universal installer.
All of this is to say, the only thing lost by dropping this code on modern Xcode
is that `os.environ['ARCHFLAGS'] = ''` is no longer set. But we probably
shouldn't be setting that anymore, as shown by the universal libraries now being
generated. I was able to `make local` and `python3 run-tests.py --local` with
python 3.9.9, Xcode 10.2, and macOS 10.14.6, and didn't incur any more than the
usual few test errors, so this should still work on some older versions of
macOS.
#!/usr/bin/env python3
# Dump revlogs as raw data stream
# $ find .hg/store/ -name "*.i" | xargs dumprevlog > repo.dump
import sys
from mercurial.node import hex
from mercurial import (
encoding,
pycompat,
revlog,
)
from mercurial.utils import procutil
from mercurial.revlogutils import (
constants as revlog_constants,
)
for fp in (sys.stdin, sys.stdout, sys.stderr):
procutil.setbinary(fp)
def binopen(path, mode=b'rb'):
if b'b' not in mode:
mode = mode + b'b'
return open(path, pycompat.sysstr(mode))
binopen.options = {}
def printb(data, end=b'\n'):
sys.stdout.flush()
procutil.stdout.write(data + end)
for f in sys.argv[1:]:
localf = encoding.strtolocal(f)
if not localf.endswith(b'.i'):
print("file:", f, file=sys.stderr)
print(" invalid filename", file=sys.stderr)
r = revlog.revlog(
binopen,
target=(revlog_constants.KIND_OTHER, b'dump-revlog'),
radix=localf[:-2],
)
print("file:", f)
for i in r:
n = r.node(i)
p = r.parents(n)
d = r.revision(n)
printb(b"node: %s" % hex(n))
printb(b"linkrev: %d" % r.linkrev(i))
printb(b"parents: %s %s" % (hex(p[0]), hex(p[1])))
printb(b"length: %d" % len(d))
printb(b"-start-")
printb(d)
printb(b"-end-")