contrib/packaging/hgpackaging/inno.py

packaging: remove hg.exe.local file

<exe>.local files are used by Windows to set up DLL
redirection. But these files are ignored if you embed an
application manifest in your binary, which we do.

So the existence of this file serves no purpose. So we remove
it.

Differential Revision: https://phab.mercurial-scm.org/D7160

# inno.py - Inno Setup functionality.
#
# Copyright 2019 Gregory Szorc <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

# no-check-code because Python 3 native.

import os
import pathlib
import shutil
import subprocess

import jinja2

from .py2exe import (
    build_py2exe,
    stage_install,
)
from .util import find_vc_runtime_files

EXTRA_PACKAGES = {
    'dulwich',
    'keyring',
    'pygments',
    'win32ctypes',
}

PACKAGE_FILES_METADATA = {
    'ReadMe.html': 'Flags: isreadme',
}


def build(
    source_dir: pathlib.Path,
    build_dir: pathlib.Path,
    python_exe: pathlib.Path,
    iscc_exe: pathlib.Path,
    version=None,
):
    """Build the Inno installer.

    Build files will be placed in ``build_dir``.

    py2exe's setup.py doesn't use setuptools. It doesn't have modern logic
    for finding the Python 2.7 toolchain. So, we require the environment
    to already be configured with an active toolchain.
    """
    if not iscc_exe.exists():
        raise Exception('%s does not exist' % iscc_exe)

    vc_x64 = r'\x64' in os.environ.get('LIB', '')
    arch = 'x64' if vc_x64 else 'x86'
    inno_source_dir = source_dir / 'contrib' / 'packaging' / 'inno'
    inno_build_dir = build_dir / ('inno-%s' % arch)
    staging_dir = inno_build_dir / 'stage'

    requirements_txt = (
        source_dir / 'contrib' / 'packaging' / 'inno' / 'requirements.txt'
    )

    inno_build_dir.mkdir(parents=True, exist_ok=True)

    build_py2exe(
        source_dir,
        build_dir,
        python_exe,
        'inno',
        requirements_txt,
        extra_packages=EXTRA_PACKAGES,
    )

    # Purge the staging directory for every build so packaging is
    # pristine.
    if staging_dir.exists():
        print('purging %s' % staging_dir)
        shutil.rmtree(staging_dir)

    # Now assemble all the packaged files into the staging directory.
    stage_install(source_dir, staging_dir)

    # hg.exe depends on VC9 runtime DLLs. Copy those into place.
    for f in find_vc_runtime_files(vc_x64):
        if f.name.endswith('.manifest'):
            basename = 'Microsoft.VC90.CRT.manifest'
        else:
            basename = f.name

        dest_path = staging_dir / basename

        print('copying %s to %s' % (f, dest_path))
        shutil.copyfile(f, dest_path)

    # The final package layout is simply a mirror of the staging directory.
    package_files = []
    for root, dirs, files in os.walk(staging_dir):
        dirs.sort()

        root = pathlib.Path(root)

        for f in sorted(files):
            full = root / f
            rel = full.relative_to(staging_dir)
            if str(rel.parent) == '.':
                dest_dir = '{app}'
            else:
                dest_dir = '{app}\\%s' % rel.parent

            package_files.append(
                {
                    'source': rel,
                    'dest_dir': dest_dir,
                    'metadata': PACKAGE_FILES_METADATA.get(str(rel), None),
                }
            )

    print('creating installer')

    # Install Inno files by rendering a template.
    jinja_env = jinja2.Environment(
        loader=jinja2.FileSystemLoader(str(inno_source_dir)),
        # Need to change these to prevent conflict with Inno Setup.
        comment_start_string='{##',
        comment_end_string='##}',
    )

    try:
        template = jinja_env.get_template('mercurial.iss')
    except jinja2.TemplateSyntaxError as e:
        raise Exception(
            'template syntax error at %s:%d: %s'
            % (e.name, e.lineno, e.message,)
        )

    content = template.render(package_files=package_files)

    with (inno_build_dir / 'mercurial.iss').open('w', encoding='utf-8') as fh:
        fh.write(content)

    # Copy additional files used by Inno.
    for p in ('mercurial.ico', 'postinstall.txt'):
        shutil.copyfile(
            source_dir / 'contrib' / 'win32' / p, inno_build_dir / p
        )

    args = [str(iscc_exe)]

    if vc_x64:
        args.append('/dARCH=x64')

    if version:
        args.append('/dVERSION=%s' % version)

    args.append('/Odist')
    args.append(str(inno_build_dir / 'mercurial.iss'))

    subprocess.run(args, cwd=str(source_dir), check=True)