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# -*- Mode: Python -*- vi:si:et:sw=4:sts=4:ts=4:syntax=python
import shutil
from cerbero.errors import FatalError
from cerbero.tools.libtool import LibtoolLibrary
from cerbero.tools.libtool import get_libtool_versions

GLIB_CONFIG_UNVERSAL='''\
#ifdef __i386__
#include "i386/glibconfig.h"
#elif defined(__ppc__)
#include "ppc/glibconfig.h"
#elif defined(__x86_64__)
#include "x86_64/glibconfig.h"
#elif defined(__arm__)
#include "arm/glibconfig.h"
#elif defined(__arm64__)
#include "arm64/glibconfig.h"
#else
#error "Unsupported Architecture"
#endif
'''

class Recipe(recipe.Recipe):
    name = 'glib'
    version = '2.56.1'
    stype = SourceType.TARBALL
    maj_ver = '.'.join(version.split('.')[0:2])
    url = 'https://download.gnome.org/sources/{0}/{1}/{0}-{2}.tar.xz'.format(name, maj_ver, version)
    licenses = [License.LGPLv2Plus]
    btype = BuildType.MESON
    meson_options = {'gtk_doc': 'false', 'internal_pcre': 'true', 'libmount': 'false',
                     'dtrace': 'false'}
    deps = ['libffi', 'zlib']

    patches = ["glib/0003-Add-support-for-loading-GIO-modules-from-the-distro-.patch",
               "glib/0004-Allow-for-a-second-distro-GIO-module-path-as-used-on.patch",
               "glib/0005-Blacklist-the-bamf-GIO-module.patch",
               "glib/0006-giomodule-do-not-try-to-load-modules-from-gio-module.patch",
               "glib/0008-Unhide-_g_io_modules_ensure_extension_points_registe.patch",
               'glib/0009-Implementation-of-Cocoa-event-loop-integration-in-GM.patch',
               'glib/0013-gmain-Fix-erroneous-if-condition-when-dtrace-is-disa.patch',
               'glib/0001-DO-NOT-UPSTREAM-Prototypes-missing-in-Cerbero-s-anci.patch',
               # All these patches are upstream and can be removed on version bump
               'glib/glib-2.57-meson-backported-fixes.patch',
               'glib/0001-meson-Add-exception-for-atomic-ops-test-for-Android.patch',
               'glib/0001-gengiotypefuncs.py-Read-and-parse-files-in-binary-mo.patch',
               'glib/0001-Use-a-real-test-for-G_HAVE_GNUC_VISIBILITY.patch',
               # Under discussion upstream: https://gitlab.gnome.org/GNOME/glib/issues/1413
               'glib/0001-meson-Always-set-G_MODULE_SUFFIX-to-so-on-macOS.patch',
              ]

    files_libs = [
        'libglib-2.0', 'libgio-2.0', 'libgmodule-2.0', 'libgobject-2.0',
        'libgthread-2.0']
    files_bins = ['gsettings', 'gdbus', 'gio-querymodules', 'glib-compile-schemas']
    platform_files_schemas = {
        Platform.WINDOWS: ['share/glib-2.0/schemas'],
        Platform.DARWIN: ['share/glib-2.0/schemas'],
        Platform.IOS: ['share/glib-2.0/schemas'],
    }
    #FIXME: Fill it when needed
    #files_gio = ['lib/gio/modules']
    files_devel = [
        'bin/glib-gettextize',
        'bin/glib-mkenums',
        'bin/glib-compile-resources%(bext)s',
        'bin/glib-genmarshal',
        'bin/gresource%(bext)s',
        'bin/gdbus-codegen',
        'lib/glib-2.0/include',
        'lib/pkgconfig/gio-2.0.pc',
        'lib/pkgconfig/glib-2.0.pc',
        'lib/pkgconfig/gmodule-2.0.pc',
        'lib/pkgconfig/gmodule-export-2.0.pc',
        'lib/pkgconfig/gmodule-no-export-2.0.pc',
        'lib/pkgconfig/gobject-2.0.pc',
        'lib/pkgconfig/gthread-2.0.pc',
        'include/glib-2.0',
        'share/aclocal/glib-2.0.m4',
        'share/aclocal/glib-gettext.m4'
        ]
    platform_files_devel = {
        Platform.WINDOWS: ['lib/pkgconfig/gio-windows-2.0.pc', 'include/gio-win32-2.0'],
        Platform.LINUX: ['lib/pkgconfig/gio-unix-2.0.pc', 'include/gio-unix-2.0'],
        Platform.ANDROID: ['lib/pkgconfig/gio-unix-2.0.pc', 'include/gio-unix-2.0'],
        Platform.DARWIN: ['lib/pkgconfig/gio-unix-2.0.pc', 'include/gio-unix-2.0'],
        Platform.IOS: ['lib/pkgconfig/gio-unix-2.0.pc', 'include/gio-unix-2.0'],
    }

    files_lang = ['glib20']

    def _set_gio_flags(self, path1=None, path2=None, use_old_uri_scheme=False):
        self.append_env('CFLAGS', *self._gio_flags(path1, path2, use_old_uri_scheme))

    def _gio_flags(self, path1=None, path2=None, use_old_uri_scheme=False):
        flags = []
        def escape(path):
            return '\\"%s\\"' % path
        if path1 is not None:
            flags.append('-DGST_SDK_GLIB_GIO_DISTRO_GIO_MODULE_PATH=' + escape(path1))
        if path2 is not None:
            flags.append('-DGST_SDK_GLIB_GIO_DISTRO_GIO_MODULE_PATH2=' + escape(path2))
        if use_old_uri_scheme:
            flags.append('-DGST_SDK_GLIB_GIO_OLD_URI_SCHEME_HANDLERS=1')
        return flags

    def prepare(self):
        # Glib doesn't support static libraries on Windows yet
        if self.config.target_platform == Platform.WINDOWS:
            self.meson_default_library = 'shared'

        if self.config.target_platform != Platform.LINUX:
            # Disable valgrind code on non-Linux, in the best case it just
            # gives us compiler errors :)
            self.append_env('CFLAGS', '-DNVALGRIND=1')
            self.meson_options.update({'xattr': 'false'})
            self.deps.append('proxy-libintl')

        # macOS provides libiconv as a separate library
        if self.config.target_platform == Platform.DARWIN:
            self.meson_options.update({'iconv': 'native'})
        # linux and BSD provide iconv as a part of libc
        elif self.config.target_platform == Platform.LINUX:
            self.meson_options.update({'iconv': 'libc'})
        # On Windows, glib uses an internal copy of libiconv
        elif self.config.target_platform == Platform.WINDOWS:
            self.meson_options.update({'iconv': 'native'})
        # Other platforms don't provide libiconv, so we build it
        else: 
            self.deps.append('libiconv')
            self.meson_options.update({'iconv': 'gnu'})

        if self.config.target_platform == Platform.ANDROID:
            v = DistroVersion.get_android_api_version(self.config.target_distro_version)
            if self.config.target_arch in [Architecture.ARM, Architecture.ARMv7, Architecture.X86] and v < 21:
                # FIXME: HACK to make projects using mmap compile with NDK 16
                # we fail to compile with -D_FILE_OFFSET_BITS=64
                # because we don't use clang and we use a platform < 21 (Lollipop)
                # See $NDK_ROOT/sysroot/usr/include/sys/mman.h as one example
                self.append_env('CFLAGS', '-U_FILE_OFFSET_BITS')
        elif self.config.target_platform == Platform.WINDOWS:
            # Want secure versions of stdlib functions. Glib already defines
            # _WIN32_WINNT, so undefine it on the cmdline to avoid warnings
            self.append_env('CFLAGS', '-DMINGW_HAS_SECURE_API=1', '-U_WIN32_WINNT')
        elif self.config.target_platform in [Platform.DARWIN, Platform.IOS]:
            self.files_devel.append(os.path.join('lib', 'glib-2.0', 'include', '*', 'glibconfig.h'))
            arch = self.config.target_arch
            if arch == Architecture.X86:
                arch = 'i386'
            elif arch == Architecture.ARM64:
                arch = 'arm64'
            elif Architecture.is_arm(arch):
                arch = 'arm'
            extra_flags = []
            if self.config.target_platform == Platform.IOS:
                # Disable mac OS X specifics
                extra_flags = ['-DGST_SDK_IOS=1']
                # XXX: Why did we disable these for iOS?
                #self.configure_options += ' --disable-carbon --disable-modular-tests --disable-cocoa'
            self.append_env('CFLAGS', *extra_flags)

        elif self.config.target_platform == Platform.LINUX:
            path1 = '/usr/lib/gio/modules'
            path2 = None
            use_old_uri_scheme = False
            self.meson_options.update({'selinux': 'false'})
            # Old Debian/Ubuntu
            if self.config.target_distro_version in [DistroVersion.DEBIAN_SQUEEZE,
                                                     DistroVersion.UBUNTU_LUCID,
                                                     DistroVersion.UBUNTU_MAVERICK]:
                use_old_uri_scheme = True
            # Ubuntu, cannot check self.config.target_distro here because it's
            # set to Distro.DEBIAN
            elif self.config.target_distro_version.startswith('ubuntu_'):
                if self.config.target_arch == Architecture.X86:
                    path2 = '/usr/lib/i386-linux-gnu/gio/modules'
                elif self.config.target_arch == Architecture.X86_64:
                    path2 = '/usr/lib/x86_64-linux-gnu/gio/modules'
            # Debian
            elif self.config.target_distro == Distro.DEBIAN:
                if self.config.target_arch == Architecture.X86:
                    path1 = '/usr/lib/i386-linux-gnu/gio/modules'
                elif self.config.target_arch == Architecture.X86_64:
                    path1 = '/usr/lib/x86_64-linux-gnu/gio/modules'
            # RedHat
            elif self.config.target_distro == Distro.REDHAT:
                if self.config.target_arch == Architecture.X86_64:
                    path1 = '/usr/lib64/gio/modules/'
            # Suse
            elif self.config.target_distro == Distro.SUSE:
                if self.config.target_arch == Architecture.X86_64:
                    path1 = '/usr/lib64/gio/modules/'
            # Arch
            elif self.config.target_distro == Distro.ARCH:
                path1 = '/usr/lib/gio/modules/'
            # Gentoo
            elif self.config.target_distro == Distro.GENTOO:
                path1 = '/usr/lib/gio/modules/'
            elif self.config.target_distro == Distro.NONE:
                if self.config.target_distro_version == DistroVersion.NONE_UCLIBC:
                    self.deps += ('gettext', 'libiconv')
            else:
                raise FatalError(_("Add specific for other Linux distributions here"))
            self._set_gio_flags(path1, path2, use_old_uri_scheme)

    def post_install(self):
        if self.config.target_platform in [Platform.IOS, Platform.DARWIN]:
            # For the universal build we need to ship glibconfig.h of both
            # architectures in a subfolder and include the correct one depending
            # on the compiler architecture
            arch = self.config.target_arch
            if arch == Architecture.X86:
                arch = 'i386'
            elif arch == Architecture.ARM64:
                arch = 'arm64'
            elif Architecture.is_arm(arch):
                arch = 'arm'

            arch_dir = os.path.join(self.config.prefix, 'lib', 'glib-2.0',
                                     'include', arch)
            if not os.path.exists(arch_dir):
                os.makedirs(arch_dir)
            shutil.copyfile(os.path.join(self.meson_dir, 'glib', 'glibconfig.h'),
                        os.path.join(arch_dir, 'glibconfig.h'))
            with open(os.path.join(self.config.prefix, 'lib', 'glib-2.0',
                                   'include', 'glibconfig.h'), 'w+') as f:
                f.write(GLIB_CONFIG_UNVERSAL)
        major, minor, micro = get_libtool_versions(self.version)
        # Meson does not generate la files
        LibtoolLibrary('glib-2.0', major, minor, micro,
                self.config.libdir, self.config.target_platform).save()
        LibtoolLibrary('gobject-2.0', major, minor, micro,
                self.config.libdir, self.config.target_platform,
                deps=['glib-2.0', 'ffi']).save()
        LibtoolLibrary('gmodule-2.0', major, minor, micro,
                self.config.libdir, self.config.target_platform,
                deps=['glib-2.0']).save()
        LibtoolLibrary('gio-2.0', major, minor, micro,
                self.config.libdir, self.config.target_platform,
                deps=['gobject-2.0', 'gmodule-2.0', 'z']).save()