tests/test-narrow-clone-no-ellipsis.t

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.

  $ . "$TESTDIR/narrow-library.sh"

  $ hg init master
  $ cd master
  $ mkdir dir
  $ mkdir dir/src
  $ cd dir/src
  $ for x in `$TESTDIR/seq.py 20`; do echo $x > "f$x"; hg add "f$x"; hg commit -m "Commit src $x"; done
  $ cd ..
  $ mkdir tests
  $ cd tests
  $ for x in `$TESTDIR/seq.py 20`; do echo $x > "t$x"; hg add "t$x"; hg commit -m "Commit test $x"; done
  $ cd ../../..

narrow clone a file, f10

  $ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/f10"
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 40 changesets with 1 changes to 1 files
  new changesets *:* (glob)
  $ cd narrow
  $ hg debugrequires | grep -v generaldelta
  dotencode
  dirstate-v2 (dirstate-v2 !)
  fncache
  narrowhg-experimental
  persistent-nodemap (rust !)
  revlog-compression-zstd (zstd !)
  revlogv1
  share-safe
  sparserevlog
  store
  testonly-simplestore (reposimplestore !)

  $ hg tracked
  I path:dir/src/f10
  $ hg update
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ find * | sort
  dir
  dir/src
  dir/src/f10
  $ cat dir/src/f10
  10

  $ cd ..

narrow clone a directory, tests/, except tests/t19

  $ hg clone --narrow ssh://user@dummy/master narrowdir --noupdate --include "dir/tests/" --exclude "dir/tests/t19"
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 40 changesets with 19 changes to 19 files
  new changesets *:* (glob)
  $ cd narrowdir
  $ hg tracked
  I path:dir/tests
  X path:dir/tests/t19
  $ hg update
  19 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ find * | sort
  dir
  dir/tests
  dir/tests/t1
  dir/tests/t10
  dir/tests/t11
  dir/tests/t12
  dir/tests/t13
  dir/tests/t14
  dir/tests/t15
  dir/tests/t16
  dir/tests/t17
  dir/tests/t18
  dir/tests/t2
  dir/tests/t20
  dir/tests/t3
  dir/tests/t4
  dir/tests/t5
  dir/tests/t6
  dir/tests/t7
  dir/tests/t8
  dir/tests/t9

  $ cd ..

narrow clone everything but a directory (tests/)

  $ hg clone --narrow ssh://user@dummy/master narrowroot --noupdate --exclude "dir/tests"
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 40 changesets with 20 changes to 20 files
  new changesets *:* (glob)
  $ cd narrowroot
  $ hg tracked
  I path:.
  X path:dir/tests
  $ hg update
  20 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ find * | sort
  dir
  dir/src
  dir/src/f1
  dir/src/f10
  dir/src/f11
  dir/src/f12
  dir/src/f13
  dir/src/f14
  dir/src/f15
  dir/src/f16
  dir/src/f17
  dir/src/f18
  dir/src/f19
  dir/src/f2
  dir/src/f20
  dir/src/f3
  dir/src/f4
  dir/src/f5
  dir/src/f6
  dir/src/f7
  dir/src/f8
  dir/src/f9

  $ cd ..

Testing the --narrowspec flag to clone

  $ cat >> narrowspecs <<EOF
  > %include foo
  > [include]
  > path:dir/tests/
  > path:dir/src/f12
  > EOF

  $ hg clone ssh://user@dummy/master specfile --narrowspec narrowspecs
  reading narrowspec from '$TESTTMP/narrowspecs'
  config error: cannot specify other files using '%include' in narrowspec
  [30]

  $ cat > narrowspecs <<EOF
  > [include]
  > path:dir/tests/
  > path:dir/src/f12
  > EOF

  $ hg clone ssh://user@dummy/master specfile --narrowspec narrowspecs
  reading narrowspec from '$TESTTMP/narrowspecs'
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 40 changesets with 21 changes to 21 files
  new changesets 681085829a73:26ce255d5b5d
  updating to branch default
  21 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd specfile
  $ hg tracked
  I path:dir/src/f12
  I path:dir/tests
  $ cd ..