# The following variables can be passed in as parameters:

#

# VERSION

#   Version string of program being produced.

#

# MSI_NAME

#   Root name of MSI installer.

#

# EXTRA_MSI_FEATURES

#   ; delimited string of extra features to advertise in the built MSA.

#

# SIGNING_PFX_PATH

#   Path to code signing certificate to use.

#

# SIGNING_PFX_PASSWORD

#   Password to code signing PFX file defined by SIGNING_PFX_PATH.

#

# SIGNING_SUBJECT_NAME

#   String fragment in code signing certificate subject name used to find

#   code signing certificate in Windows certificate store.

#

# TIME_STAMP_SERVER_URL

#   URL of time-stamp token authority (RFC 3161) servers to stamp code signatures.

ROOT = CWD + "/../.."

VERSION = VARS.get("VERSION", "0.0")

MSI_NAME = VARS.get("MSI_NAME", "mercurial")

EXTRA_MSI_FEATURES = VARS.get("EXTRA_MSI_FEATURES")

SIGNING_PFX_PATH = VARS.get("SIGNING_PFX_PATH")

SIGNING_PFX_PASSWORD = VARS.get("SIGNING_PFX_PASSWORD", "")

SIGNING_SUBJECT_NAME = VARS.get("SIGNING_SUBJECT_NAME")

TIME_STAMP_SERVER_URL = VARS.get("TIME_STAMP_SERVER_URL", "http://timestamp.digicert.com")

IS_WINDOWS = "windows" in BUILD_TARGET_TRIPLE

# Use in-memory resources for all resources. If false, most of the Python

# stdlib will be in memory, but other things such as Mercurial itself will not

# be. See the comment in resource_callback, below.

USE_IN_MEMORY_RESOURCES = not IS_WINDOWS

# Code to run in Python interpreter.

RUN_CODE = """

import os

import sys

extra_path = os.environ.get('PYTHONPATH')

if extra_path is not None:

    # extensions and hooks expect a working python environment

    # We do not prepend the values because the Mercurial library wants to be in

    # the front of the sys.path to avoid picking up other installations.

    sys.path.extend(extra_path.split(os.pathsep))

# Add user site to sys.path to load extensions without the full path

if os.name == 'nt':

    vi = sys.version_info

    appdata = os.environ.get('APPDATA')

    if appdata:

        sys.path.append(

            os.path.join(

                appdata,

                'Python',

                'Python%d%d' % (vi[0], vi[1]),

                'site-packages',

            )

        )

elif sys.platform == "darwin":

    vi = sys.version_info

    def joinuser(*args):

        return os.path.expanduser(os.path.join(*args))

    # Note: site.py uses `sys._framework` instead of hardcoding "Python" as the

    #   3rd arg, but that is set to an empty string in an oxidized binary.  It

    #   has a fallback to ~/.local when `sys._framework` isn't set, but we want

    #   to match what the system python uses, so it sees pip installed stuff.

    usersite = joinuser("~", "Library", "Python",

                        "%d.%d" % vi[:2], "lib/python/site-packages")

    sys.path.append(usersite)

import hgdemandimport;

hgdemandimport.enable();

from mercurial import dispatch;

dispatch.run();

"""

set_build_path(ROOT + "/build/pyoxidizer")

def make_distribution():

    return default_python_distribution(python_version = "3.9")

def resource_callback(policy, resource):

    if USE_IN_MEMORY_RESOURCES:

        resource.add_location = "in-memory"

        return

    # We use a custom resource routing policy to influence where things are loaded

    # from.

    #

    # For Python modules and resources, we load from memory if they are in

    # the standard library and from the filesystem if not. This is because

    # parts of Mercurial and some 3rd party packages aren't yet compatible

    # with memory loading.

    #

    # For Python extension modules, we load from the filesystem because

    # this yields greatest compatibility.

    if type(resource) in ("PythonModuleSource", "PythonPackageResource", "PythonPackageDistributionResource"):

        if resource.is_stdlib:

            resource.add_location = "in-memory"

        else:

            resource.add_location = "filesystem-relative:lib"

    elif type(resource) == "PythonExtensionModule":

        resource.add_location = "filesystem-relative:lib"

def make_exe(dist):

    """Builds a Rust-wrapped Mercurial binary."""

    packaging_policy = dist.make_python_packaging_policy()

    # Extension may depend on any Python functionality. Include all

    # extensions.

    packaging_policy.extension_module_filter = "all"

    packaging_policy.resources_location = "in-memory"

    if not USE_IN_MEMORY_RESOURCES:

        packaging_policy.resources_location_fallback = "filesystem-relative:lib"

    packaging_policy.register_resource_callback(resource_callback)

    config = dist.make_python_interpreter_config()

    config.allocator_backend = "default"

    config.run_command = RUN_CODE

    # We want to let the user load extensions from the file system

    config.filesystem_importer = True

    # We need this to make resourceutil happy, since it looks for sys.frozen.

    config.sys_frozen = True

    config.legacy_windows_stdio = True

    exe = dist.to_python_executable(

        name = "hg",

        packaging_policy = packaging_policy,

        config = config,

    )

    # Add Mercurial to resources.

    exe.add_python_resources(exe.pip_install(["--verbose", "--no-use-pep517", ROOT]))

    # On Windows, we install extra packages for convenience.

    if IS_WINDOWS:

        exe.add_python_resources(

            exe.pip_install(["-r", ROOT + "/contrib/packaging/requirements-windows-py3.txt"]),

        )

    extra_packages = VARS.get("extra_py_packages", "")

    if extra_packages:

        for extra in extra_packages.split(","):

            extra_src, pkgs = extra.split("=")

            pkgs = pkgs.split(":")

            exe.add_python_resources(exe.read_package_root(extra_src, pkgs))

    return exe

def make_manifest(dist, exe):

    m = FileManifest()

    m.add_python_resource(".", exe)

    return m

# This adjusts the InstallManifest produced from exe generation to provide

# additional files found in a Windows install layout.

def make_windows_install_layout(manifest):

    # Copy various files to new install locations. This can go away once

    # we're using the importlib resource reader.

    RECURSIVE_COPIES = {

        "lib/mercurial/locale/": "locale/",

        "lib/mercurial/templates/": "templates/",

    }

    for (search, replace) in RECURSIVE_COPIES.items():

        for path in manifest.paths():

            if path.startswith(search):

                new_path = path.replace(search, replace)

                print("copy %s to %s" % (path, new_path))

                file = manifest.get_file(path)

                manifest.add_file(file, path = new_path)

    # Similar to above, but with filename pattern matching.

    # lib/mercurial/helptext/**/*.txt -> helptext/

    # lib/mercurial/defaultrc/*.rc -> defaultrc/

    for path in manifest.paths():

        if path.startswith("lib/mercurial/helptext/") and path.endswith(".txt"):

            new_path = path[len("lib/mercurial/"):]

        elif path.startswith("lib/mercurial/defaultrc/") and path.endswith(".rc"):

            new_path = path[len("lib/mercurial/"):]

        else:

            continue

        print("copying %s to %s" % (path, new_path))

        manifest.add_file(manifest.get_file(path), path = new_path)

    extra_install_files = VARS.get("extra_install_files", "")

    if extra_install_files:

        for extra in extra_install_files.split(","):

            print("adding extra files from %s" % extra)

            # TODO: I expected a ** glob to work, but it didn't.

            #

            # TODO: I know this has forward-slash paths. As far as I can tell,

            # backslashes don't ever match glob() expansions in 

            # tugger-starlark, even on Windows.

            manifest.add_manifest(glob(include=[extra + "/*/*"], strip_prefix=extra+"/"))

    # We also install a handful of additional files.

    EXTRA_CONTRIB_FILES = [

        "bash_completion",

        "hgweb.fcgi",

        "hgweb.wsgi",

        "logo-droplets.svg",

        "mercurial.el",

        "mq.el",

        "tcsh_completion",

        "tcsh_completion_build.sh",

        "xml.rnc",

        "zsh_completion",

    ]

    for f in EXTRA_CONTRIB_FILES:

        manifest.add_file(FileContent(path = ROOT + "/contrib/" + f), directory = "contrib")

    # Individual files with full source to destination path mapping.

    EXTRA_FILES = {

        "contrib/hgk": "contrib/hgk.tcl",

        "contrib/win32/postinstall.txt": "ReleaseNotes.txt",

        "contrib/win32/ReadMe.html": "ReadMe.html",

        "doc/style.css": "doc/style.css",

        "COPYING": "Copying.txt",

    }

    for source, dest in EXTRA_FILES.items():

        print("adding extra file %s" % dest)

        manifest.add_file(FileContent(path = ROOT + "/" + source), path = dest)

    # And finally some wildcard matches.

    manifest.add_manifest(glob(

        include = [ROOT + "/contrib/vim/*"],

        strip_prefix = ROOT + "/"

    ))

    manifest.add_manifest(glob(

        include = [ROOT + "/doc/*.html"],

        strip_prefix = ROOT + "/"

    ))

    # But we don't ship hg-ssh on Windows, so exclude its documentation.

    manifest.remove("doc/hg-ssh.8.html")

    return manifest

def make_msi(manifest):

    manifest = make_windows_install_layout(manifest)

    if "x86_64" in BUILD_TARGET_TRIPLE:

        platform = "x64"

    else:

        platform = "x86"

    manifest.add_file(

        FileContent(path = ROOT + "/contrib/packaging/wix/COPYING.rtf"),

        path = "COPYING.rtf",

    )

    manifest.remove("Copying.txt")

    manifest.add_file(

        FileContent(path = ROOT + "/contrib/win32/mercurial.ini"),

        path = "defaultrc/mercurial.rc",

    )

    manifest.add_file(

        FileContent(filename = "editor.rc", content = "[ui]\neditor = notepad\n"),

        path = "defaultrc/editor.rc",

    )

    wix = WiXInstaller(

        "hg",

        "%s-%s-%s.msi" % (MSI_NAME, VERSION, platform),

        arch = platform,

    )

    # Materialize files in the manifest to the install layout.

    wix.add_install_files(manifest)

    # From mercurial.wxs.

    wix.install_files_root_directory_id = "INSTALLDIR"

    # Pull in our custom .wxs files.

    defines = {

        "PyOxidizer": "1",

        "Platform": platform,

        "Version": VERSION,

        "Comments": "Installs Mercurial version %s" % VERSION,

        "PythonVersion": "3",

        "MercurialHasLib": "1",

    }

    if EXTRA_MSI_FEATURES:

        defines["MercurialExtraFeatures"] = EXTRA_MSI_FEATURES

    wix.add_wxs_file(

        ROOT + "/contrib/packaging/wix/mercurial.wxs",

        preprocessor_parameters=defines,

    )

    # Our .wxs references to other files. Pull those into the build environment.

    for f in ("defines.wxi", "guids.wxi", "COPYING.rtf"):

        wix.add_build_file(f, ROOT + "/contrib/packaging/wix/" + f)

    wix.add_build_file("mercurial.ico", ROOT + "/contrib/win32/mercurial.ico")

    return wix

def register_code_signers():

    if not IS_WINDOWS:

        return

    if SIGNING_PFX_PATH:

        signer = code_signer_from_pfx_file(SIGNING_PFX_PATH, SIGNING_PFX_PASSWORD)

    elif SIGNING_SUBJECT_NAME:

        signer = code_signer_from_windows_store_subject(SIGNING_SUBJECT_NAME)

    else:

        signer = None

    if signer:

        signer.set_time_stamp_server(TIME_STAMP_SERVER_URL)

        signer.activate()

register_code_signers()

register_target("distribution", make_distribution)

register_target("exe", make_exe, depends = ["distribution"])

register_target("app", make_manifest, depends = ["distribution", "exe"], default = True)

register_target("msi", make_msi, depends = ["app"])

resolve_targets()