demandimport: don't delay _distutils_hack import
test-demandimport.py would fail on 'import distutils.msvc9compiler' because
warnings:
/usr/lib/python3.11/site-packages/_distutils_hack/__init__.py:18: UserWarning: Distutils was imported before Setuptools, but importing Setuptools also replaces the `distutils` module in `sys.modules`. This may lead to undesirable behaviors or errors. To avoid these issues, avoid using distutils directly, ensure that setuptools is installed in the traditional way (e.g. not an editable install), and/or make sure that setuptools is always imported before distutils.
warnings.warn(
/usr/lib/python3.11/site-packages/_distutils_hack/__init__.py:33: UserWarning: Setuptools is replacing distutils.
warnings.warn("Setuptools is replacing distutils.")
Telling demandimport to ignore this module will allow the hack to work as
intended.
Note:
The test for distutils.msvc9compiler comes from 2205d00b6d2b. But since then,
distutils is going away, and setuptools has moved forward and is replacing it.
It is unclear exactly what is being tested here and how setuptools should
depended on msvc9compiler. The test might no longer be relevant.
#!/usr/bin/env python3
"""usage: %s DOC ...
where DOC is the name of a document
"""
import os
import sys
import textwrap
try:
import msvcrt
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
except ImportError:
pass
# This script is executed during installs and may not have C extensions
# available. Relax C module requirements.
os.environ['HGMODULEPOLICY'] = 'allow'
# import from the live mercurial repo
sys.path.insert(0, os.path.abspath(".."))
from mercurial import demandimport
demandimport.enable()
from mercurial import (
commands,
encoding,
extensions,
fancyopts,
help,
minirst,
pycompat,
ui as uimod,
)
from mercurial.i18n import (
gettext,
_,
)
from mercurial.utils import stringutil
table = commands.table
globalopts = commands.globalopts
helptable = help.helptable
loaddoc = help.loaddoc
def get_desc(docstr):
if not docstr:
return b"", b""
# sanitize
docstr = docstr.strip(b"\n")
docstr = docstr.rstrip()
shortdesc = docstr.splitlines()[0].strip()
i = docstr.find(b"\n")
if i != -1:
desc = docstr[i + 2 :]
else:
desc = shortdesc
desc = textwrap.dedent(desc.decode('latin1')).encode('latin1')
return (shortdesc, desc)
def get_opts(opts):
for opt in opts:
if len(opt) == 5:
shortopt, longopt, default, desc, optlabel = opt
else:
shortopt, longopt, default, desc = opt
optlabel = _(b"VALUE")
allopts = []
if shortopt:
allopts.append(b"-%s" % shortopt)
if longopt:
allopts.append(b"--%s" % longopt)
if isinstance(default, list):
allopts[-1] += b" <%s[+]>" % optlabel
elif (default is not None) and not isinstance(default, bool):
allopts[-1] += b" <%s>" % optlabel
if b'\n' in desc:
# only remove line breaks and indentation
desc = b' '.join(l.lstrip() for l in desc.split(b'\n'))
if isinstance(default, fancyopts.customopt):
default = default.getdefaultvalue()
if default:
default = stringutil.forcebytestr(default)
desc += _(b" (default: %s)") % default
yield (b", ".join(allopts), desc)
def get_cmd(cmd, cmdtable):
d = {}
attr = cmdtable[cmd]
cmds = cmd.lstrip(b"^").split(b"|")
d[b'cmd'] = cmds[0]
d[b'aliases'] = cmd.split(b"|")[1:]
d[b'desc'] = get_desc(gettext(pycompat.getdoc(attr[0])))
d[b'opts'] = list(get_opts(attr[1]))
s = b'hg ' + cmds[0]
if len(attr) > 2:
if not attr[2].startswith(b'hg'):
s += b' ' + attr[2]
else:
s = attr[2]
d[b'synopsis'] = s.strip()
return d
def showdoc(ui):
# print options
ui.write(minirst.section(_(b"Options")))
multioccur = False
for optstr, desc in get_opts(globalopts):
ui.write(b"%s\n %s\n\n" % (optstr, desc))
if optstr.endswith(b"[+]>"):
multioccur = True
if multioccur:
ui.write(_(b"\n[+] marked option can be specified multiple times\n"))
ui.write(b"\n")
# print cmds
ui.write(minirst.section(_(b"Commands")))
commandprinter(ui, table, minirst.subsection, minirst.subsubsection)
# print help topics
# The config help topic is included in the hgrc.5 man page.
helpprinter(ui, helptable, minirst.section, exclude=[b'config'])
ui.write(minirst.section(_(b"Extensions")))
ui.write(
_(
b"This section contains help for extensions that are "
b"distributed together with Mercurial. Help for other "
b"extensions is available in the help system."
)
)
ui.write(
(
b"\n\n"
b".. contents::\n"
b" :class: htmlonly\n"
b" :local:\n"
b" :depth: 1\n\n"
)
)
for extensionname in sorted(allextensionnames()):
mod = extensions.load(ui, extensionname, None)
ui.write(minirst.subsection(extensionname))
ui.write(b"%s\n\n" % gettext(pycompat.getdoc(mod)))
cmdtable = getattr(mod, 'cmdtable', None)
if cmdtable:
ui.write(minirst.subsubsection(_(b'Commands')))
commandprinter(
ui,
cmdtable,
minirst.subsubsubsection,
minirst.subsubsubsubsection,
)
def showtopic(ui, topic):
extrahelptable = [
([b"common"], b'', loaddoc(b'common'), help.TOPIC_CATEGORY_MISC),
([b"hg.1"], b'', loaddoc(b'hg.1'), help.TOPIC_CATEGORY_CONFIG),
([b"hg-ssh.8"], b'', loaddoc(b'hg-ssh.8'), help.TOPIC_CATEGORY_CONFIG),
(
[b"hgignore.5"],
b'',
loaddoc(b'hgignore.5'),
help.TOPIC_CATEGORY_CONFIG,
),
([b"hgrc.5"], b'', loaddoc(b'hgrc.5'), help.TOPIC_CATEGORY_CONFIG),
(
[b"hgignore.5.gendoc"],
b'',
loaddoc(b'hgignore'),
help.TOPIC_CATEGORY_CONFIG,
),
(
[b"hgrc.5.gendoc"],
b'',
loaddoc(b'config'),
help.TOPIC_CATEGORY_CONFIG,
),
]
helpprinter(ui, helptable + extrahelptable, None, include=[topic])
def helpprinter(ui, helptable, sectionfunc, include=[], exclude=[]):
for h in helptable:
names, sec, doc = h[0:3]
if exclude and names[0] in exclude:
continue
if include and names[0] not in include:
continue
for name in names:
ui.write(b".. _%s:\n" % name)
ui.write(b"\n")
if sectionfunc:
ui.write(sectionfunc(sec))
if callable(doc):
doc = doc(ui)
ui.write(doc)
ui.write(b"\n")
def commandprinter(ui, cmdtable, sectionfunc, subsectionfunc):
"""Render restructuredtext describing a list of commands and their
documentations, grouped by command category.
Args:
ui: UI object to write the output to
cmdtable: a dict that maps a string of the command name plus its aliases
(separated with pipes) to a 3-tuple of (the command's function, a list
of its option descriptions, and a string summarizing available
options). Example, with aliases added for demonstration purposes:
'phase|alias1|alias2': (
<function phase at 0x7f0816b05e60>,
[ ('p', 'public', False, 'set changeset phase to public'),
...,
('r', 'rev', [], 'target revision', 'REV')],
'[-p|-d|-s] [-f] [-r] [REV...]'
)
sectionfunc: minirst function to format command category headers
subsectionfunc: minirst function to format command headers
"""
h = {}
for c, attr in cmdtable.items():
f = c.split(b"|")[0]
f = f.lstrip(b"^")
h[f] = c
cmds = h.keys()
def helpcategory(cmd):
"""Given a canonical command name from `cmds` (above), retrieve its
help category. If helpcategory is None, default to CATEGORY_NONE.
"""
fullname = h[cmd]
details = cmdtable[fullname]
helpcategory = details[0].helpcategory
return helpcategory or help.registrar.command.CATEGORY_NONE
cmdsbycategory = {category: [] for category in help.CATEGORY_ORDER}
for cmd in cmds:
# If a command category wasn't registered, the command won't get
# rendered below, so we raise an AssertionError.
if helpcategory(cmd) not in cmdsbycategory:
raise AssertionError(
"The following command did not register its (category) in "
"help.CATEGORY_ORDER: %s (%s)" % (cmd, helpcategory(cmd))
)
cmdsbycategory[helpcategory(cmd)].append(cmd)
# Print the help for each command. We present the commands grouped by
# category, and we use help.CATEGORY_ORDER as a guide for a helpful order
# in which to present the categories.
for category in help.CATEGORY_ORDER:
categorycmds = cmdsbycategory[category]
if not categorycmds:
# Skip empty categories
continue
# Print a section header for the category.
# For now, the category header is at the same level as the headers for
# the commands in the category; this is fixed in the next commit.
ui.write(sectionfunc(help.CATEGORY_NAMES[category]))
# Print each command in the category
for f in sorted(categorycmds):
if f.startswith(b"debug"):
continue
d = get_cmd(h[f], cmdtable)
ui.write(subsectionfunc(d[b'cmd']))
# short description
ui.write(d[b'desc'][0])
# synopsis
ui.write(b"::\n\n")
synopsislines = d[b'synopsis'].splitlines()
for line in synopsislines:
# some commands (such as rebase) have a multi-line
# synopsis
ui.write(b" %s\n" % line)
ui.write(b'\n')
# description
ui.write(b"%s\n\n" % d[b'desc'][1])
# options
opt_output = list(d[b'opts'])
if opt_output:
opts_len = max([len(line[0]) for line in opt_output])
ui.write(_(b"Options:\n\n"))
multioccur = False
for optstr, desc in opt_output:
if desc:
s = b"%-*s %s" % (opts_len, optstr, desc)
else:
s = optstr
ui.write(b"%s\n" % s)
if optstr.endswith(b"[+]>"):
multioccur = True
if multioccur:
ui.write(
_(
b"\n[+] marked option can be specified"
b" multiple times\n"
)
)
ui.write(b"\n")
# aliases
if d[b'aliases']:
# Note the empty comment, this is required to separate this
# (which should be a blockquote) from any preceding things (such
# as a definition list).
ui.write(
_(b"..\n\n aliases: %s\n\n") % b" ".join(d[b'aliases'])
)
def allextensionnames():
return set(extensions.enabled().keys()) | set(extensions.disabled().keys())
if __name__ == "__main__":
doc = b'hg.1.gendoc'
if len(sys.argv) > 1:
doc = encoding.strtolocal(sys.argv[1])
ui = uimod.ui.load()
# Trigger extensions to load. This is disabled by default because it uses
# the current user's configuration, which is often not what is wanted.
if encoding.environ.get(b'GENDOC_LOAD_CONFIGURED_EXTENSIONS', b'0') != b'0':
extensions.loadall(ui)
if doc == b'hg.1.gendoc':
showdoc(ui)
else:
showtopic(ui, encoding.strtolocal(sys.argv[1]))