make: switch the PYTHON default to `py.exe -3` on Windows
Python3 _is_ named `python.exe` on Windows, but that isn't necessarily on PATH
when installing from python.org. I do happen to have a python.exe on PATH in
`$LOCALAPPDATA/Microsoft/WindowsApps`, but it appears to be 0 bytes (likely
because of permission issues), and doesn't run:
$ python -V
- Cannot open
Pulkit hit the same error as I did though, so it isn't just my system:
$ make -C . local
make: Entering directory `/home/Dell/repos/hg-committed`
python setup.py \
build_py -c -d . \
build_ext -i \
build_hgexe -i \
build_mo
- Cannot openmake: *** [local] Error 1
The `py.exe` dispatcher lives in the Windows directory (so it is on PATH), looks
up the python.org installation, and invokes that interpreter directly. I get a
warning with py39, but if it's our issue, it was an existing one:
$ make -C .. local
make: Entering directory `/c/Users/Matt/hg'
py -3 setup.py \
build_py -c -d . \
build_ext -i \
build_hgexe -i \
build_mo
C:\Users\Matt\AppData\Local\Programs\Python\Python39\lib\site-packages\setuptools\distutils_patch.py:25:
UserWarning: Distutils was imported before Setuptools. This usage is discouraged and may
exhibit undesirable behaviors or errors. Please use Setuptools' objects directly or at least
import Setuptools first.
warnings.warn(
The end result is a py3 based hg.exe that annoyingly won't run because it can't
find python39.dll. It will run tests (the ones without the `python3` shbang
line anyway), because the test runner adjusts PATH to include the python running
it.
Differential Revision: https://phab.mercurial-scm.org/D9361
#!/usr/bin/env python3
#
# checkseclevel - checking section title levels in each online help document
from __future__ import absolute_import
import optparse
import os
import sys
# import from the live mercurial repo
os.environ['HGMODULEPOLICY'] = 'py'
sys.path.insert(0, "..")
from mercurial import demandimport
demandimport.enable()
from mercurial import (
commands,
extensions,
help,
minirst,
ui as uimod,
)
table = commands.table
helptable = help.helptable
level2mark = [b'"', b'=', b'-', b'.', b'#']
reservedmarks = [b'"']
mark2level = {}
for m, l in zip(level2mark, range(len(level2mark))):
if m not in reservedmarks:
mark2level[m] = l
initlevel_topic = 0
initlevel_cmd = 1
initlevel_ext = 1
initlevel_ext_cmd = 3
def showavailables(ui, initlevel):
avail = ' available marks and order of them in this help: %s\n' % (
', '.join(['%r' % (m * 4) for m in level2mark[initlevel + 1 :]])
)
ui.warn(avail.encode('utf-8'))
def checkseclevel(ui, doc, name, initlevel):
ui.notenoi18n('checking "%s"\n' % name)
if not isinstance(doc, bytes):
doc = doc.encode('utf-8')
blocks, pruned = minirst.parse(doc, 0, ['verbose'])
errorcnt = 0
curlevel = initlevel
for block in blocks:
if block[b'type'] != b'section':
continue
mark = block[b'underline']
title = block[b'lines'][0]
if (mark not in mark2level) or (mark2level[mark] <= initlevel):
ui.warn(
(
'invalid section mark %r for "%s" of %s\n'
% (mark * 4, title, name)
).encode('utf-8')
)
showavailables(ui, initlevel)
errorcnt += 1
continue
nextlevel = mark2level[mark]
if curlevel < nextlevel and curlevel + 1 != nextlevel:
ui.warnnoi18n(
'gap of section level at "%s" of %s\n' % (title, name)
)
showavailables(ui, initlevel)
errorcnt += 1
continue
ui.notenoi18n(
'appropriate section level for "%s %s"\n'
% (mark * (nextlevel * 2), title)
)
curlevel = nextlevel
return errorcnt
def checkcmdtable(ui, cmdtable, namefmt, initlevel):
errorcnt = 0
for k, entry in cmdtable.items():
name = k.split(b"|")[0].lstrip(b"^")
if not entry[0].__doc__:
ui.notenoi18n(
'skip checking %s: no help document\n' % (namefmt % name)
)
continue
errorcnt += checkseclevel(
ui, entry[0].__doc__, namefmt % name, initlevel
)
return errorcnt
def checkhghelps(ui):
errorcnt = 0
for h in helptable:
names, sec, doc = h[0:3]
if callable(doc):
doc = doc(ui)
errorcnt += checkseclevel(
ui, doc, '%s help topic' % names[0], initlevel_topic
)
errorcnt += checkcmdtable(ui, table, '%s command', initlevel_cmd)
for name in sorted(
list(extensions.enabled()) + list(extensions.disabled())
):
mod = extensions.load(ui, name, None)
if not mod.__doc__:
ui.notenoi18n(
'skip checking %s extension: no help document\n' % name
)
continue
errorcnt += checkseclevel(
ui, mod.__doc__, '%s extension' % name, initlevel_ext
)
cmdtable = getattr(mod, 'cmdtable', None)
if cmdtable:
errorcnt += checkcmdtable(
ui,
cmdtable,
'%%s command of %s extension' % name,
initlevel_ext_cmd,
)
return errorcnt
def checkfile(ui, filename, initlevel):
if filename == '-':
filename = 'stdin'
doc = sys.stdin.read()
else:
with open(filename) as fp:
doc = fp.read()
ui.notenoi18n(
'checking input from %s with initlevel %d\n' % (filename, initlevel)
)
return checkseclevel(ui, doc, 'input from %s' % filename, initlevel)
def main():
optparser = optparse.OptionParser(
"""%prog [options]
This checks all help documents of Mercurial (topics, commands,
extensions and commands of them), if no file is specified by --file
option.
"""
)
optparser.add_option(
"-v", "--verbose", help="enable additional output", action="store_true"
)
optparser.add_option(
"-d", "--debug", help="debug mode", action="store_true"
)
optparser.add_option(
"-f",
"--file",
help="filename to read in (or '-' for stdin)",
action="store",
default="",
)
optparser.add_option(
"-t",
"--topic",
help="parse file as help topic",
action="store_const",
dest="initlevel",
const=0,
)
optparser.add_option(
"-c",
"--command",
help="parse file as help of core command",
action="store_const",
dest="initlevel",
const=1,
)
optparser.add_option(
"-e",
"--extension",
help="parse file as help of extension",
action="store_const",
dest="initlevel",
const=1,
)
optparser.add_option(
"-C",
"--extension-command",
help="parse file as help of extension command",
action="store_const",
dest="initlevel",
const=3,
)
optparser.add_option(
"-l",
"--initlevel",
help="set initial section level manually",
action="store",
type="int",
default=0,
)
(options, args) = optparser.parse_args()
ui = uimod.ui.load()
ui.setconfig(b'ui', b'verbose', options.verbose, b'--verbose')
ui.setconfig(b'ui', b'debug', options.debug, b'--debug')
if options.file:
if checkfile(ui, options.file, options.initlevel):
sys.exit(1)
else:
if checkhghelps(ui):
sys.exit(1)
if __name__ == "__main__":
main()