#

# This is the mercurial setup script.

#

# 'python setup.py install', or

# 'python setup.py --help' for more options

import os

# Mercurial will never work on Python 3 before 3.5 due to a lack

# of % formatting on bytestrings, and can't work on 3.6.0 or 3.6.1

# due to a bug in % formatting in bytestrings.

# We cannot support Python 3.5.0, 3.5.1, 3.5.2 because of bug in

# codecs.escape_encode() where it raises SystemError on empty bytestring

# bug link: https://bugs.python.org/issue25270

supportedpy = ','.join(

    [

        '>=3.5.3',

        '!=3.6.0',

        '!=3.6.1',

    ]

)

import sys, platform

import sysconfig

def sysstr(s):

    return s.decode('latin-1')

import ssl

# ssl.HAS_TLSv1* are preferred to check support but they were added in Python

# 3.7. Prior to CPython commit 6e8cda91d92da72800d891b2fc2073ecbc134d98

# (backported to the 3.7 branch), ssl.PROTOCOL_TLSv1_1 / ssl.PROTOCOL_TLSv1_2

# were defined only if compiled against a OpenSSL version with TLS 1.1 / 1.2

# support. At the mentioned commit, they were unconditionally defined.

_notset = object()

has_tlsv1_1 = getattr(ssl, 'HAS_TLSv1_1', _notset)

if has_tlsv1_1 is _notset:

    has_tlsv1_1 = getattr(ssl, 'PROTOCOL_TLSv1_1', _notset) is not _notset

has_tlsv1_2 = getattr(ssl, 'HAS_TLSv1_2', _notset)

if has_tlsv1_2 is _notset:

    has_tlsv1_2 = getattr(ssl, 'PROTOCOL_TLSv1_2', _notset) is not _notset

if not (has_tlsv1_1 or has_tlsv1_2):

    error = """

The `ssl` module does not advertise support for TLS 1.1 or TLS 1.2.

Please make sure that your Python installation was compiled against an OpenSSL

version enabling these features (likely this requires the OpenSSL version to

be at least 1.0.1).

"""

    print(error, file=sys.stderr)

    sys.exit(1)

DYLIB_SUFFIX = sysconfig.get_config_vars()['EXT_SUFFIX']

# Solaris Python packaging brain damage

try:

    import hashlib

    sha = hashlib.sha1()

except ImportError:

    try:

        import sha

        sha.sha  # silence unused import warning

    except ImportError:

        raise SystemExit(

            "Couldn't import standard hashlib (incomplete Python install)."

        )

try:

    import zlib

    zlib.compressobj  # silence unused import warning

except ImportError:

    raise SystemExit(

        "Couldn't import standard zlib (incomplete Python install)."

    )

# The base IronPython distribution (as of 2.7.1) doesn't support bz2

isironpython = False

try:

    isironpython = (

        platform.python_implementation().lower().find("ironpython") != -1

    )

except AttributeError:

    pass

if isironpython:

    sys.stderr.write("warning: IronPython detected (no bz2 support)\n")

else:

    try:

        import bz2

        bz2.BZ2Compressor  # silence unused import warning

    except ImportError:

        raise SystemExit(

            "Couldn't import standard bz2 (incomplete Python install)."

        )

ispypy = "PyPy" in sys.version

import ctypes

import errno

import stat, subprocess, time

import re

import shutil

import tempfile

# We have issues with setuptools on some platforms and builders. Until

# those are resolved, setuptools is opt-in except for platforms where

# we don't have issues.

issetuptools = os.name == 'nt' or 'FORCE_SETUPTOOLS' in os.environ

if issetuptools:

    from setuptools import setup

else:

    from distutils.core import setup

from distutils.ccompiler import new_compiler

from distutils.core import Command, Extension

from distutils.dist import Distribution

from distutils.command.build import build

from distutils.command.build_ext import build_ext

from distutils.command.build_py import build_py

from distutils.command.build_scripts import build_scripts

from distutils.command.install import install

from distutils.command.install_lib import install_lib

from distutils.command.install_scripts import install_scripts

from distutils import log

from distutils.spawn import spawn, find_executable

from distutils import file_util

from distutils.errors import (

    CCompilerError,

    DistutilsError,

    DistutilsExecError,

)

from distutils.sysconfig import get_python_inc, get_config_var

from distutils.version import StrictVersion

# Explain to distutils.StrictVersion how our release candidates are versioned

StrictVersion.version_re = re.compile(r'^(\d+)\.(\d+)(\.(\d+))?-?(rc(\d+))?$')

def write_if_changed(path, content):

    """Write content to a file iff the content hasn't changed."""

    if os.path.exists(path):

        with open(path, 'rb') as fh:

            current = fh.read()

    else:

        current = b''

    if current != content:

        with open(path, 'wb') as fh:

            fh.write(content)

scripts = ['hg']

if os.name == 'nt':

    # We remove hg.bat if we are able to build hg.exe.

    scripts.append('contrib/win32/hg.bat')

def cancompile(cc, code):

    tmpdir = tempfile.mkdtemp(prefix='hg-install-')

    devnull = oldstderr = None

    try:

        fname = os.path.join(tmpdir, 'testcomp.c')

        f = open(fname, 'w')

        f.write(code)

        f.close()

        # Redirect stderr to /dev/null to hide any error messages

        # from the compiler.

        # This will have to be changed if we ever have to check

        # for a function on Windows.

        devnull = open('/dev/null', 'w')

        oldstderr = os.dup(sys.stderr.fileno())

        os.dup2(devnull.fileno(), sys.stderr.fileno())

        objects = cc.compile([fname], output_dir=tmpdir)

        cc.link_executable(objects, os.path.join(tmpdir, "a.out"))

        return True

    except Exception:

        return False

    finally:

        if oldstderr is not None:

            os.dup2(oldstderr, sys.stderr.fileno())

        if devnull is not None:

            devnull.close()

        shutil.rmtree(tmpdir)

# simplified version of distutils.ccompiler.CCompiler.has_function

# that actually removes its temporary files.

def hasfunction(cc, funcname):

    code = 'int main(void) { %s(); }\n' % funcname

    return cancompile(cc, code)

def hasheader(cc, headername):

    code = '#include <%s>\nint main(void) { return 0; }\n' % headername

    return cancompile(cc, code)

# py2exe needs to be installed to work

try:

    import py2exe

    py2exe.Distribution  # silence unused import warning

    py2exeloaded = True

    # import py2exe's patched Distribution class

    from distutils.core import Distribution

except ImportError:

    py2exeloaded = False

def runcmd(cmd, env, cwd=None):

    p = subprocess.Popen(

        cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env, cwd=cwd

    )

    out, err = p.communicate()

    return p.returncode, out, err

class hgcommand(object):

    def __init__(self, cmd, env):

        self.cmd = cmd

        self.env = env

    def run(self, args):

        cmd = self.cmd + args

        returncode, out, err = runcmd(cmd, self.env)

        err = filterhgerr(err)

        if err or returncode != 0:

            print("stderr from '%s':" % (' '.join(cmd)), file=sys.stderr)

            print(err, file=sys.stderr)

            return b''

        return out

def filterhgerr(err):

    # If root is executing setup.py, but the repository is owned by

    # another user (as in "sudo python setup.py install") we will get

    # trust warnings since the .hg/hgrc file is untrusted. That is

    # fine, we don't want to load it anyway.  Python may warn about

    # a missing __init__.py in mercurial/locale, we also ignore that.

    err = [

        e

        for e in err.splitlines()

        if (

            not e.startswith(b'not trusting file')

            and not e.startswith(b'warning: Not importing')

            and not e.startswith(b'obsolete feature not enabled')

            and not e.startswith(b'*** failed to import extension')

            and not e.startswith(b'devel-warn:')

            and not (

                e.startswith(b'(third party extension')

                and e.endswith(b'or newer of Mercurial; disabling)')

            )

        )

    ]

    return b'\n'.join(b'  ' + e for e in err)

def findhg():

    """Try to figure out how we should invoke hg for examining the local

    repository contents.

    Returns an hgcommand object."""

    # By default, prefer the "hg" command in the user's path.  This was

    # presumably the hg command that the user used to create this repository.

    #

    # This repository may require extensions or other settings that would not

    # be enabled by running the hg script directly from this local repository.

    hgenv = os.environ.copy()

    # Use HGPLAIN to disable hgrc settings that would change output formatting,

    # and disable localization for the same reasons.

    hgenv['HGPLAIN'] = '1'

    hgenv['LANGUAGE'] = 'C'

    hgcmd = ['hg']

    # Run a simple "hg log" command just to see if using hg from the user's

    # path works and can successfully interact with this repository.  Windows

    # gives precedence to hg.exe in the current directory, so fall back to the

    # python invocation of local hg, where pythonXY.dll can always be found.

    check_cmd = ['log', '-r.', '-Ttest']

    if os.name != 'nt' or not os.path.exists("hg.exe"):

        try:

            retcode, out, err = runcmd(hgcmd + check_cmd, hgenv)

        except EnvironmentError:

            retcode = -1

        if retcode == 0 and not filterhgerr(err):

            return hgcommand(hgcmd, hgenv)

    # Fall back to trying the local hg installation.

    hgenv = localhgenv()

    hgcmd = [sys.executable, 'hg']

    try:

        retcode, out, err = runcmd(hgcmd + check_cmd, hgenv)

    except EnvironmentError:

        retcode = -1

    if retcode == 0 and not filterhgerr(err):

        return hgcommand(hgcmd, hgenv)

    raise SystemExit(

        'Unable to find a working hg binary to extract the '

        'version from the repository tags'

    )

def localhgenv():

    """Get an environment dictionary to use for invoking or importing

    mercurial from the local repository."""

    # Execute hg out of this directory with a custom environment which takes

    # care to not use any hgrc files and do no localization.

    env = {

        'HGMODULEPOLICY': 'py',

        'HGRCPATH': '',

        'LANGUAGE': 'C',

        'PATH': '',

    }  # make pypi modules that use os.environ['PATH'] happy

    if 'LD_LIBRARY_PATH' in os.environ:

        env['LD_LIBRARY_PATH'] = os.environ['LD_LIBRARY_PATH']

    if 'SystemRoot' in os.environ:

        # SystemRoot is required by Windows to load various DLLs.  See:

        # https://bugs.python.org/issue13524#msg148850

        env['SystemRoot'] = os.environ['SystemRoot']

    return env

version = ''

if os.path.isdir('.hg'):

    hg = findhg()

    cmd = ['log', '-r', '.', '--template', '{tags}\n']

    numerictags = [t for t in sysstr(hg.run(cmd)).split() if t[0:1].isdigit()]

    hgid = sysstr(hg.run(['id', '-i'])).strip()

    if not hgid:

        # Bail out if hg is having problems interacting with this repository,

        # rather than falling through and producing a bogus version number.

        # Continuing with an invalid version number will break extensions

        # that define minimumhgversion.

        raise SystemExit('Unable to determine hg version from local repository')

    if numerictags:  # tag(s) found

        version = numerictags[-1]

        if hgid.endswith('+'):  # propagate the dirty status to the tag

            version += '+'

    else:  # no tag found

        ltagcmd = ['parents', '--template', '{latesttag}']

        ltag = sysstr(hg.run(ltagcmd))

        changessincecmd = ['log', '-T', 'x\n', '-r', "only(.,'%s')" % ltag]

        changessince = len(hg.run(changessincecmd).splitlines())

        version = '%s+hg%s.%s' % (ltag, changessince, hgid)

    if version.endswith('+'):

        version = version[:-1] + 'local' + time.strftime('%Y%m%d')

elif os.path.exists('.hg_archival.txt'):

    kw = dict(

        [[t.strip() for t in l.split(':', 1)] for l in open('.hg_archival.txt')]

    )

    if 'tag' in kw:

        version = kw['tag']

    elif 'latesttag' in kw:

        if 'changessincelatesttag' in kw:

            version = (

                '%(latesttag)s+hg%(changessincelatesttag)s.%(node).12s' % kw

            )

        else:

            version = '%(latesttag)s+hg%(latesttagdistance)s.%(node).12s' % kw

    else:

        version = '0+hg' + kw.get('node', '')[:12]

elif os.path.exists('mercurial/__version__.py'):

    with open('mercurial/__version__.py') as f:

        data = f.read()

    version = re.search('version = b"(.*)"', data).group(1)

if version:

    versionb = version

    if not isinstance(versionb, bytes):

        versionb = versionb.encode('ascii')

    write_if_changed(

        'mercurial/__version__.py',

        b''.join(

            [

                b'# this file is autogenerated by setup.py\n'

                b'version = b"%s"\n' % versionb,

            ]

        ),