black: merge config into main pyproject.toml now that we have it

This means that naive contributors who just run `black` on a source file
will get reasonable behavior as long as they have a recent black. Yay!

This was previously D9834 but was rolled back due to test
failures. nbjoerg thinks it's time to try again, so let's give it a
shot.

Differential Revision: https://phab.mercurial-scm.org/D10185

contrib/examples/fix.hgrc

@@ -1,14 +1,14 b''
 [fix]
 clang-format:command = clang-format --style file
 clang-format:pattern = set:(**.c or **.cc or **.h) and not "include:contrib/clang-format-ignorelist"
 
 rustfmt:command = rustfmt +nightly
 rustfmt:pattern = set:"**.rs" - "mercurial/thirdparty/**"
 
-black:command = black --config=black.toml -
+black:command = black
 black:pattern = set:**.py - mercurial/thirdparty/**
 
 # Mercurial doesn't have any Go code, but if we did this is how we
 # would configure `hg fix` for Go:
 go:command = gofmt
 go:pattern = set:**.go

pyproject.toml

@@ -1,3 +1,18 b''
 [build-system]
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
+
+[tool.black]
+line-length = 80
+exclude = '''
+build/
+| wheelhouse/
+| dist/
+| packages/
+| \.hg/
+| \.mypy_cache/
+| \.venv/
+| mercurial/thirdparty/
+'''
+skip-string-normalization = true
+quiet = true

tests/test-check-code.t

@@ -1,97 +1,96 b''
 #require test-repo
 
   $ . "$TESTDIR/helpers-testrepo.sh"
   $ check_code="$TESTDIR"/../contrib/check-code.py
   $ cd "$TESTDIR"/..
 
 New errors are not allowed. Warnings are strongly discouraged.
 (The writing "no-che?k-code" is for not skipping this file when checking.)
 
   $ testrepohg locate \
   > -X contrib/python-zstandard \
   > -X hgext/fsmonitor/pywatchman \
   > -X mercurial/thirdparty \
   > -X mercurial/pythoncapi_compat.h \
   > | sed 's-\\-/-g' | "$check_code" --warnings --per-file=0 - || false
   Skipping contrib/automation/hgautomation/__init__.py it has no-che?k-code (glob)
   Skipping contrib/automation/hgautomation/aws.py it has no-che?k-code (glob)
   Skipping contrib/automation/hgautomation/cli.py it has no-che?k-code (glob)
   Skipping contrib/automation/hgautomation/linux.py it has no-che?k-code (glob)
   Skipping contrib/automation/hgautomation/pypi.py it has no-che?k-code (glob)
   Skipping contrib/automation/hgautomation/ssh.py it has no-che?k-code (glob)
   Skipping contrib/automation/hgautomation/try_server.py it has no-che?k-code (glob)
   Skipping contrib/automation/hgautomation/windows.py it has no-che?k-code (glob)
   Skipping contrib/automation/hgautomation/winrm.py it has no-che?k-code (glob)
   Skipping contrib/fuzz/FuzzedDataProvider.h it has no-che?k-code (glob)
   Skipping contrib/fuzz/standalone_fuzz_target_runner.cc it has no-che?k-code (glob)
   Skipping contrib/packaging/hgpackaging/cli.py it has no-che?k-code (glob)
   Skipping contrib/packaging/hgpackaging/downloads.py it has no-che?k-code (glob)
   Skipping contrib/packaging/hgpackaging/inno.py it has no-che?k-code (glob)
   Skipping contrib/packaging/hgpackaging/py2exe.py it has no-che?k-code (glob)
   Skipping contrib/packaging/hgpackaging/pyoxidizer.py it has no-che?k-code (glob)
   Skipping contrib/packaging/hgpackaging/util.py it has no-che?k-code (glob)
   Skipping contrib/packaging/hgpackaging/wix.py it has no-che?k-code (glob)
   Skipping i18n/polib.py it has no-che?k-code (glob)
   Skipping mercurial/statprof.py it has no-che?k-code (glob)
   Skipping tests/badserverext.py it has no-che?k-code (glob)
 
 @commands in debugcommands.py should be in alphabetical order.
 
   >>> import re
   >>> commands = []
   >>> with open('mercurial/debugcommands.py', 'rb') as fh:
   ...     for line in fh:
   ...         m = re.match(br"^@command\('([a-z]+)", line)
   ...         if m:
   ...             commands.append(m.group(1))
   >>> scommands = list(sorted(commands))
   >>> for i, command in enumerate(scommands):
   ...     if command != commands[i]:
   ...         print('commands in debugcommands.py not sorted; first differing '
   ...               'command is %s; expected %s' % (commands[i], command))
   ...         break
 
 Prevent adding new files in the root directory accidentally.
 
   $ testrepohg files 'glob:*'
   .arcconfig
   .clang-format
   .editorconfig
   .hgignore
   .hgsigs
   .hgtags
   .jshintrc
   CONTRIBUTING
   CONTRIBUTORS
   COPYING
   Makefile
   README.rst
-  black.toml
   hg
   hgeditor
   hgweb.cgi
   pyproject.toml
   rustfmt.toml
   setup.py
 
 Prevent adding modules which could be shadowed by ancient .so/.dylib.
 
   $ testrepohg files \
   > mercurial/base85.py \
   > mercurial/bdiff.py \
   > mercurial/diffhelpers.py \
   > mercurial/mpatch.py \
   > mercurial/osutil.py \
   > mercurial/parsers.py \
   > mercurial/zstd.py
   [1]
 
 Keep python3 tests sorted:
   $ sort < contrib/python3-whitelist > $TESTTMP/py3sorted
   $ cmp contrib/python3-whitelist $TESTTMP/py3sorted || echo 'Please sort passing tests!'
 
 Keep Windows line endings in check
 
   $ testrepohg files 'set:eol(dos)'
   contrib/win32/hg.bat
   contrib/win32/mercurial.ini

tests/test-check-format.t

@@ -1,5 +1,5 b''
 #require black test-repo
 
   $ cd $RUNTESTDIR/..
-  $ black --config=black.toml --check --diff `hg files 'set:(**.py + grep("^#!.*python")) - mercurial/thirdparty/**'`
+  $ black --check --diff `hg files 'set:(**.py + grep("^#!.*python")) - mercurial/thirdparty/**'`