Skip to content
Snippets Groups Projects
setup.py 59 KiB
Newer Older
mpm's avatar
mpm committed
#
# This is the mercurial setup script.
# 'python setup.py install', or
# 'python setup.py --help' for more options
# Mercurial can't work on 3.6.0 or 3.6.1 due to a bug in % formatting
# in bytestrings.
supportedpy = ','.join(
    [
        '>=3.6.2',
def sysstr(s):
    return s.decode('latin-1')
def eprint(*args, **kwargs):
    kwargs['file'] = sys.stderr
    print(*args, **kwargs)


# 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)
DYLIB_SUFFIX = sysconfig.get_config_vars()['EXT_SUFFIX']
# Solaris Python packaging brain damage
try:
    import hashlib
    sha = hashlib.sha1()

        sha.sha  # silence unused import warning
            "Couldn't import standard hashlib (incomplete Python install)."
        )

    zlib.compressobj  # silence unused import warning
        "Couldn't import standard zlib (incomplete Python install)."
    )
# The base IronPython distribution (as of 2.7.1) doesn't support bz2
isironpython = False
    isironpython = (
        platform.python_implementation().lower().find("ironpython") != -1
    )
except AttributeError:
    sys.stderr.write("warning: IronPython detected (no bz2 support)\n")

        bz2.BZ2Compressor  # silence unused import warning
            "Couldn't import standard bz2 (incomplete Python install)."
        )
ispypy = "PyPy" in sys.version

import stat, subprocess, time
# 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
    from setuptools import setup
else:
    try:
        from distutils.core import setup
    except ModuleNotFoundError:
        from setuptools 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.spawn import spawn, find_executable
from distutils.errors import (
    CCompilerError,
    DistutilsError,
    DistutilsExecError,
)
from distutils.sysconfig import get_python_inc
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')
Matt Mackall's avatar
Matt Mackall committed

def cancompile(cc, code):
    tmpdir = tempfile.mkdtemp(prefix='hg-install-')
        fname = os.path.join(tmpdir, 'testcomp.c')
        f = open(fname, 'w')
        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"))
    except Exception:
        return False
        if oldstderr is not None:
            os.dup2(oldstderr, sys.stderr.fileno())
        if devnull is not None:
            devnull.close()
# 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.patch_distutils()
    # import py2exe's patched Distribution class
    from distutils.core import Distribution
def runcmd(cmd, env, cwd=None):
    p = subprocess.Popen(
        cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env, cwd=cwd
    )
Matt Harbison's avatar
Matt Harbison committed
    out, err = p.communicate()
    return p.returncode, out, err
    def __init__(self, cmd, env):
        self.cmd = cmd
        self.env = env
    def __repr__(self):
        return f"<hgcommand cmd={self.cmd} env={self.env}>"

    def run(self, args):
        cmd = self.cmd + args
        returncode, out, err = runcmd(cmd, self.env)
            print("stderr from '%s':" % (' '.join(cmd)), file=sys.stderr)
            print(err, file=sys.stderr)
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']
        try:
            retcode, out, err = runcmd(hgcmd + check_cmd, hgenv)
            res = (True, retcode, out, err)
            if retcode == 0 and not filterhgerr(err):
                return True
        except EnvironmentError as e:
            res = (False, e)
        attempts.append((cmd, res))
        return False

    if os.name != 'nt' or not os.path.exists("hg.exe"):
        if attempt(hgcmd + check_cmd, hgenv):
    # Fall back to trying the local hg installation (pure python)
    repo_hg = os.path.join(os.path.dirname(__file__), 'hg')
    hgcmd = [sys.executable, repo_hg]
    if attempt(hgcmd + check_cmd, hgenv):
        return hgcommand(hgcmd, hgenv)
    # Fall back to trying the local hg installation (whatever we can)
    hgenv = localhgenv(pure_python=False)
    hgcmd = [sys.executable, repo_hg]
    eprint("/!\\")
    eprint(r"/!\ Unable to find a working hg binary")
    eprint(r"/!\ Version cannot be extracted from the repository")
    eprint(r"/!\ Re-run the setup once a first version is built")
    eprint(r"/!\ Attempts:")
    for i, e in enumerate(attempts):
        eprint(r"/!\   attempt #%d:" % (i))
        eprint(r"/!\     cmd:        ", e[0])
        res = e[1]
        if res[0]:
            eprint(r"/!\     return code:", res[1])
            eprint("/!\\     std output:\n%s" % (res[2].decode()), end="")
            eprint("/!\\     std error:\n%s" % (res[3].decode()), end="")
        else:
            eprint(r"/!\     exception:  ", res[1])
    """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 = {
        'HGRCPATH': '',
        'LANGUAGE': 'C',
        'PATH': '',
    }  # make pypi modules that use os.environ['PATH'] happy
    if pure_python:
        env['HGMODULEPOLICY'] = 'py'
    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']
Jun Wu's avatar
Jun Wu committed
    return env
    if hg is None:
        return ''
    hgid = None
    numerictags = []
    cmd = ['log', '-r', '.', '--template', '{tags}\n']
    pieces = sysstr(hg.run(cmd)).split()
    numerictags = [t for t in pieces if t[0:1].isdigit()]
    hgid = sysstr(hg.run(['id', '-i'])).strip()
    if hgid.count('+') == 2:
        hgid = hgid.replace("+", ".", 1)
        eprint("/!\\")
        eprint(r"/!\ Unable to determine hg version from local repository")
        eprint(r"/!\ Failed to retrieve current revision tags")
        return ''
    if numerictags:  # tag(s) found
        version = numerictags[-1]
        if hgid.endswith('+'):  # propagate the dirty status to the tag
    else:  # no tag found on the checked out revision
        ltagcmd = ['log', '--rev', 'wdir()', '--template', '{latesttag}']
        ltag = sysstr(hg.run(ltagcmd))
            eprint("/!\\")
            eprint(r"/!\ Unable to determine hg version from local repository")
            eprint(
                r"/!\ Failed to retrieve current revision distance to lated tag"
            )
            return ''
        changessincecmd = [
            'log',
            '-T',
            'x\n',
            '-r',
            "only(parents(),'%s')" % ltag,
        ]
        changessince = len(hg.run(changessincecmd).splitlines())
        version = '%s+hg%s.%s' % (ltag, changessince, hgid)
        version = version[:-1] + 'local' + time.strftime('%Y%m%d')
    return version


if os.path.isdir('.hg'):
    version = _try_get_version()
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 'changessincelatesttag' in kw:
            version = (
                '%(latesttag)s+hg%(changessincelatesttag)s.%(node).12s' % kw
            version = '%(latesttag)s+hg%(latesttagdistance)s.%(node).12s' % kw
        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 not version:
    if os.environ.get("MERCURIAL_SETUP_MAKE_LOCAL") == "1":
        version = "0.0+0"
        eprint("/!\\")
        eprint(r"/!\ Using '0.0+0' as the default version")
        eprint(r"/!\ Re-run make local once that first version is built")
        eprint("/!\\")
    else:
        eprint("/!\\")
        eprint(r"/!\ Could not determine the Mercurial version")
        eprint(r"/!\ You need to build a local version first")
        eprint(r"/!\ Run `make local` and try again")
        eprint("/!\\")
        msg = "Run `make local` first to get a working local version"
        raise SystemExit(msg)
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,
        ]
    ),
)
class hgbuild(build):
    # Insert hgbuildmo first so that files in mercurial/locale/ are found
    # when build_py is run next.
    sub_commands = [('build_mo', None)] + build.sub_commands
Matt Mackall's avatar
Matt Mackall committed
class hgbuildmo(build):

    description = "build translations (.mo files)"

    def run(self):
        if not find_executable('msgfmt'):
            self.warn(
                "could not find msgfmt executable, no translations "
                "will be built"
            )
            return

        podir = 'i18n'
        if not os.path.isdir(podir):
            self.warn("could not find %s/ directory" % podir)
            return

        join = os.path.join
        for po in os.listdir(podir):
            if not po.endswith('.po'):
                continue
            pofile = join(podir, po)
            modir = join('locale', po[:-3], 'LC_MESSAGES')
            mofile = join(modir, 'hg.mo')
            mobuildfile = join('mercurial', mofile)
            cmd = ['msgfmt', '-v', '-o', mobuildfile, pofile]
            if sys.platform != 'sunos5':
                # msgfmt on Solaris does not know about -c
                cmd.append('-c')
            self.mkpath(join('mercurial', modir))
            self.make_file([pofile], mobuildfile, spawn, (cmd,))
class hgdist(Distribution):
    rust = False
    no_rust = False
    global_options = Distribution.global_options + [
        ('pure', None, "use pure (slow) Python code instead of C extensions"),
        ('rust', None, "use Rust extensions additionally to C extensions"),
        (
            'no-rust',
            None,
            "do not use Rust extensions additionally to C extensions",
        ),
    negative_opt = Distribution.negative_opt.copy()
    boolean_options = ['pure', 'rust', 'no-rust']
    negative_opt['no-rust'] = 'rust'

    def _set_command_options(self, command_obj, option_dict=None):
        # Not all distutils versions in the wild have boolean_options.
        # This should be cleaned up when we're Python 3 only.
        command_obj.boolean_options = (
            getattr(command_obj, 'boolean_options', []) + self.boolean_options
        )
        return Distribution._set_command_options(
            self, command_obj, option_dict=option_dict
        )

    def parse_command_line(self):
        ret = Distribution.parse_command_line(self)
        if not (self.rust or self.no_rust):
            hgrustext = os.environ.get('HGWITHRUSTEXT')
            # TODO record it for proper rebuild upon changes
            # (see mercurial/__modulepolicy__.py)
            if hgrustext != 'cpython' and hgrustext is not None:
                if hgrustext:
                    msg = 'unknown HGWITHRUSTEXT value: %s' % hgrustext
                    print(msg, file=sys.stderr)
                hgrustext = None
            self.rust = hgrustext is not None
            self.no_rust = not self.rust
        return ret

    def has_ext_modules(self):
        # self.ext_modules is emptied in hgbuildpy.finalize_options which is
        # too late for some cases
        return not self.pure and Distribution.has_ext_modules(self)

# This is ugly as a one-liner. So use a variable.
buildextnegops = dict(getattr(build_ext, 'negative_options', {}))
buildextnegops['no-zstd'] = 'zstd'
buildextnegops['no-rust'] = 'rust'
class hgbuildext(build_ext):
    user_options = build_ext.user_options + [
        ('zstd', None, 'compile zstd bindings [default]'),
        ('no-zstd', None, 'do not compile zstd bindings'),
        (
            'rust',
            None,
            'compile Rust extensions if they are in use '
            '(requires Cargo) [default]',
        ),
        ('no-rust', None, 'do not compile Rust extensions'),
    boolean_options = build_ext.boolean_options + ['zstd', 'rust']
    negative_opt = buildextnegops

    def initialize_options(self):
        self.zstd = True
        self.rust = True

        return build_ext.initialize_options(self)

    def finalize_options(self):
        # Unless overridden by the end user, build extensions in parallel.
        # Only influences behavior on Python 3.5+.
        if getattr(self, 'parallel', None) is None:
            self.parallel = True

        return build_ext.finalize_options(self)

    def build_extensions(self):
        ruststandalones = [
            e for e in self.extensions if isinstance(e, RustStandaloneExtension)
        ]
        self.extensions = [
            e for e in self.extensions if e not in ruststandalones
        ]
        # Filter out zstd if disabled via argument.
        if not self.zstd:
            self.extensions = [
                e for e in self.extensions if e.name != 'mercurial.zstd'
            ]
        # Build Rust standalone extensions if it'll be used
        # and its build is not explicitly disabled (for external build
        # as Linux distributions would do)
        if self.distribution.rust and self.rust:
            if not sys.platform.startswith('linux'):
                self.warn(
                    "rust extensions have only been tested on Linux "
                    "and may not behave correctly on other platforms"
                )

            for rustext in ruststandalones:
                rustext.build('' if self.inplace else self.build_lib)
        return build_ext.build_extensions(self)

    def build_extension(self, ext):
        if (
            self.distribution.rust
            and self.rust
            and isinstance(ext, RustExtension)
        ):
            ext.rustbuild()
        try:
            build_ext.build_extension(self, ext)
        except CCompilerError:
            if not getattr(ext, 'optional', False):
            log.warn(
                "Failed to build optional extension '%s' (skipping)", ext.name
            )

class hgbuildscripts(build_scripts):
    def run(self):
        if os.name != 'nt' or self.distribution.pure:
            return build_scripts.run(self)

        exebuilt = False
        try:
            self.run_command('build_hgexe')
            exebuilt = True
        except (DistutilsError, CCompilerError):
            log.warn('failed to build optional hg.exe')

        if exebuilt:
            # Copying hg.exe to the scripts build directory ensures it is
            # installed by the install_scripts command.
            hgexecommand = self.get_finalized_command('build_hgexe')
            dest = os.path.join(self.build_dir, 'hg.exe')
            self.mkpath(self.build_dir)
            self.copy_file(hgexecommand.hgexepath, dest)

            # Remove hg.bat because it is redundant with hg.exe.
            self.scripts.remove('contrib/win32/hg.bat')

        return build_scripts.run(self)

class hgbuildpy(build_py):
    def finalize_options(self):
        build_py.finalize_options(self)

        if self.distribution.pure:
            self.distribution.ext_modules = []
            from mercurial.cffi import (
                bdiffbuild,
                mpatchbuild,

            exts = [
                mpatchbuild.ffi.distutils_extension(),
                bdiffbuild.ffi.distutils_extension(),
            ]
            if sys.platform == 'darwin':
                from mercurial.cffi import osutilbuild
                exts.append(osutilbuild.ffi.distutils_extension())
            h = os.path.join(get_python_inc(), 'Python.h')
            if not os.path.exists(h):
                raise SystemExit(
                    'Python headers are required to build '
                    'Mercurial but weren\'t found in %s' % h
                )
    def run(self):
        basepath = os.path.join(self.build_lib, 'mercurial')
        self.mkpath(basepath)

        rust = self.distribution.rust
        if self.distribution.pure:
            modulepolicy = 'py'
        elif self.build_lib == '.':
            # in-place build should run without rebuilding and Rust extensions
            modulepolicy = 'rust+c-allow' if rust else 'allow'
            modulepolicy = 'rust+c' if rust else 'c'
        content = b''.join(
            [
                b'# this file is autogenerated by setup.py\n',
                b'modulepolicy = b"%s"\n' % modulepolicy.encode('ascii'),
            ]
        )
        write_if_changed(os.path.join(basepath, '__modulepolicy__.py'), content)
        build_py.run(self)
class buildhgextindex(Command):
    description = 'generate prebuilt index of hgext (for frozen package)'
    user_options = []
    _indexfilename = 'hgext/__index__.py'

    def initialize_options(self):
        pass

    def finalize_options(self):
        pass

    def run(self):
        if os.path.exists(self._indexfilename):
timeless's avatar
timeless committed
            with open(self._indexfilename, 'w') as f:
                f.write('# empty\n')

        # here no extension enabled, disabled() lists up everything
        code = (
            'import pprint; from mercurial import extensions; '
            'ext = extensions.disabled();'
            'ext.pop("__index__", None);'
            'pprint.pprint(ext)'
        )
        returncode, out, err = runcmd(
            [sys.executable, '-c', code], localhgenv()
        )
        if err or returncode != 0:
            raise DistutilsExecError(err)

        with open(self._indexfilename, 'wb') as f:
            f.write(b'# this file is autogenerated by setup.py\n')
            f.write(b'docs = ')
timeless's avatar
timeless committed
            f.write(out)
Adrian Buehlmann's avatar
Adrian Buehlmann committed
class buildhgexe(build_ext):
    description = 'compile hg.exe from mercurial/exewrapper.c'
    LONG_PATHS_MANIFEST = """\
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
    <security>
      <requestedPrivileges>
        <requestedExecutionLevel
          level="asInvoker"
          uiAccess="false"
        />
      </requestedPrivileges>
    </security>
  </trustInfo>
  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
    <application>
      <!-- Windows Vista -->
      <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
      <!-- Windows 7 -->
      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
      <!-- Windows 8 -->
      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
      <!-- Windows 8.1 -->
      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
      <!-- Windows 10 and Windows 11 -->
      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
    </application>
  </compatibility>
  <application xmlns="urn:schemas-microsoft-com:asm.v3">
    <windowsSettings
        xmlns:ws2="http://schemas.microsoft.com/SMI/2016/WindowsSettings">
      <ws2:longPathAware>true</ws2:longPathAware>
    </windowsSettings>
  </application>
  <dependency>
    <dependentAssembly>
      <assemblyIdentity type="win32"
                        name="Microsoft.Windows.Common-Controls"
                        version="6.0.0.0"
                        processorArchitecture="*"
                        publicKeyToken="6595b64144ccf1df"
                        language="*" />
    </dependentAssembly>
  </dependency>
</assembly>
"""

    def initialize_options(self):
        build_ext.initialize_options(self)
Adrian Buehlmann's avatar
Adrian Buehlmann committed

    def build_extensions(self):
        if os.name != 'nt':
            return
        if isinstance(self.compiler, HackedMingw32CCompiler):
            self.compiler.compiler_so = self.compiler.compiler  # no -mdll
            self.compiler.dll_libraries = []  # no -lmsrvc90
        dirname = os.path.dirname(self.get_ext_fullpath('dummy'))
        self.hgtarget = os.path.join(dirname, 'hg')
        if getattr(sys, 'dllhandle', None):
            # Different Python installs can have different Python library
            # names. e.g. the official CPython distribution uses pythonXY.dll
            # and MinGW uses libpythonX.Y.dll.
            _kernel32 = ctypes.windll.kernel32
            _kernel32.GetModuleFileNameA.argtypes = [
                ctypes.c_void_p,
                ctypes.c_void_p,
                ctypes.c_ulong,
            ]
            _kernel32.GetModuleFileNameA.restype = ctypes.c_ulong
            size = 1000
            buf = ctypes.create_string_buffer(size + 1)
            filelen = _kernel32.GetModuleFileNameA(
                sys.dllhandle, ctypes.byref(buf), size
            )

            if filelen > 0 and filelen != size:
                dllbasename = os.path.basename(buf.value)
                if not dllbasename.lower().endswith(b'.dll'):
                    raise SystemExit(
                        'Python DLL does not end with .dll: %s' % dllbasename
                    )
                pythonlib = dllbasename[:-4]

                # Copy the pythonXY.dll next to the binary so that it runs
                # without tampering with PATH.
                dest = os.path.join(
                    os.path.dirname(self.hgtarget),
                )

                if not os.path.exists(dest):
                    shutil.copy(buf.value, dest)

                # Also overwrite python3.dll so that hgext.git is usable.
                # TODO: also handle the MSYS flavor
                python_x = os.path.join(
                    os.path.dirname(os.fsdecode(buf.value)),
                    "python3.dll",
                )

                if os.path.exists(python_x):
                    dest = os.path.join(
                        os.path.dirname(self.hgtarget),
                        os.path.basename(python_x),
                    shutil.copy(python_x, dest)
            log.warn(
                'could not determine Python DLL filename; assuming pythonXY'
            pythonlib = b'python%d%d' % (hv >> 24, (hv >> 16) & 0xFF)

        log.info('using %s as Python library name' % pythonlib)
timeless's avatar
timeless committed
        with open('mercurial/hgpythonlib.h', 'wb') as f:
            f.write(b'/* this file is autogenerated by setup.py */\n')
            f.write(b'#define HGPYTHONLIB "%s"\n' % pythonlib)
        objects = self.compiler.compile(
            ['mercurial/exewrapper.c'],
            output_dir=self.build_temp,
            macros=[('_UNICODE', None), ('UNICODE', None)],
        )
        self.compiler.link_executable(
            objects, self.hgtarget, libraries=[], output_dir=self.build_temp
        )
        """Add manifest pieces so that hg.exe understands long paths

        Why resource #1 should be used for .exe manifests? I don't know and
        wasn't able to find an explanation for mortals. But it seems to work.
        """
        exefname = self.compiler.executable_filename(self.hgtarget)
        fdauto, manfname = tempfile.mkstemp(suffix='.hg.exe.manifest')
        os.close(fdauto)
        with open(manfname, 'w', encoding="UTF-8") as f:
            f.write(self.LONG_PATHS_MANIFEST)
        log.info("long paths manifest is written to '%s'" % manfname)
        outputresource = '-outputresource:%s;#1' % exefname
        log.info("running mt.exe to update hg.exe's manifest in-place")
        self.spawn(
            [
                '-nologo',
                '-manifest',
                manfname,
                outputresource,
            ]
        )
        log.info("done updating hg.exe's manifest")
        os.remove(manfname)
    @property
    def hgexepath(self):
        dir = os.path.dirname(self.get_ext_fullpath('dummy'))
        return os.path.join(self.build_temp, dir, 'hg.exe')

class hgbuilddoc(Command):
    description = 'build documentation'
    user_options = [
        ('man', None, 'generate man pages'),
        ('html', None, 'generate html pages'),
    ]

    def initialize_options(self):
        self.man = None
        self.html = None

    def finalize_options(self):
        # If --man or --html are set, only generate what we're told to.
        # Otherwise generate everything.
        have_subset = self.man is not None or self.html is not None

        if have_subset:
            self.man = True if self.man else False
            self.html = True if self.html else False
        else:
            self.man = True
            self.html = True

    def run(self):
        def normalizecrlf(p):
            with open(p, 'rb') as fh:
                orig = fh.read()

            if b'\r\n' not in orig:
                return

            log.info('normalizing %s to LF line endings' % p)
            with open(p, 'wb') as fh:
                fh.write(orig.replace(b'\r\n', b'\n'))

        def gentxt(root):
            txt = 'doc/%s.txt' % root
            log.info('generating %s' % txt)
            res, out, err = runcmd(
                [sys.executable, 'gendoc.py', root], os.environ, cwd='doc'
            )
                raise SystemExit(
                    'error running gendoc.py: %s'
                    % '\n'.join([sysstr(out), sysstr(err)])

            with open(txt, 'wb') as fh:
                fh.write(out)

        def gengendoc(root):
            gendoc = 'doc/%s.gendoc.txt' % root

            log.info('generating %s' % gendoc)
            res, out, err = runcmd(
                [sys.executable, 'gendoc.py', '%s.gendoc' % root],
                os.environ,
                raise SystemExit(
                    'error running gendoc: %s'
                    % '\n'.join([sysstr(out), sysstr(err)])

            with open(gendoc, 'wb') as fh:
                fh.write(out)

        def genman(root):
            log.info('generating doc/%s' % root)
            res, out, err = runcmd(
                [
                    sys.executable,
                    'runrst',
                    'hgmanpage',
                    '--halt',
                    'warning',
                    '--strip-elements-with-class',
                    'htmlonly',
                    '%s.txt' % root,
                    root,
                ],
                os.environ,
                raise SystemExit(
                    'error running runrst: %s'
                    % '\n'.join([sysstr(out), sysstr(err)])

            normalizecrlf('doc/%s' % root)