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build: Support cross-building for Apple silicon

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This commit is contained in:
Matt Borgerson 2021-05-30 15:50:01 -07:00 committed by mborgerson
parent f72f9be767
commit 357907013f
5 changed files with 372 additions and 82 deletions
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95
.github/workflows/build.yml vendored
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@ -123,21 +123,34 @@ jobs:
path: ${{ matrix.artifact_filename }}
macOS:
name: Build for macOS
name: Build for ${{ matrix.arch }} macOS (${{ matrix.configuration }})
runs-on: macOS-latest
needs: Init
strategy:
matrix:
arch: ["x86_64", "arm64"]
configuration: ["Debug", "Release"]
include:
- configuration: Debug
build_param: --debug
artifact_name: xemu-macos-debug
artifact_filename: xemu-macos-debug.zip
- configuration: Release
build_param:
artifact_name: xemu-macos-release
artifact_filename: xemu-macos-release.zip
- arch: x86_64
configuration: Debug
build_param: --debug -a x86_64
artifact_name: xemu-macos-x86_64-debug
artifact_filename: xemu-macos-x86_64-debug.zip
- arch: x86_64
configuration: Release
build_param: -a x86_64
artifact_name: xemu-macos-x86_64-release
artifact_filename: xemu-macos-x86_64-release.zip
- arch: arm64
configuration: Debug
build_param: --debug -a arm64
artifact_name: xemu-macos-arm64-debug
artifact_filename: xemu-macos-arm64-debug.zip
- arch: arm64
configuration: Release
build_param: -a arm64
artifact_name: xemu-macos-arm64-release
artifact_filename: xemu-macos-arm64-release.zip
steps:
- name: Clone Tree
uses: actions/checkout@v2
@ -162,11 +175,7 @@ jobs:
ccache \
coreutils \
dylibbundler \
libepoxy \
pixman \
pkg-config \
libsamplerate \
sdl2 \
ninja
- name: Initialize Compiler Cache
id: cache
@ -174,8 +183,8 @@ jobs:
uses: actions/cache@v1
with:
path: /tmp/xemu-ccache
key: cache-${{ runner.os }}-${{ matrix.configuration }}-${{ github.sha }}
restore-keys: cache-${{ runner.os }}-${{ matrix.configuration }}-
key: cache-${{ runner.os }}-${{ matrix.arch }}-${{ matrix.configuration }}-${{ github.sha }}
restore-keys: cache-${{ runner.os }}-${{ matrix.arch }}-${{ matrix.configuration }}-
- name: Compile
run: |
export CCACHE_DIR=/tmp/xemu-ccache
@ -193,10 +202,54 @@ jobs:
name: ${{ matrix.artifact_name }}
path: ${{ matrix.artifact_filename }}
macOSBuildUniversal:
name: Build for Universal macOS (${{ matrix.configuration }})
runs-on: macOS-latest
needs: [macOS]
strategy:
matrix:
configuration: ["debug", "release"]
env:
BUILD_TAG:
steps:
- name: Download x86_64 Build
uses: actions/download-artifact@v2
with:
name: xemu-macos-x86_64-${{ matrix.configuration }}
path: xemu-macos-x86_64-${{ matrix.configuration }}
- name: Download arm64 Build
uses: actions/download-artifact@v2
with:
name: xemu-macos-arm64-${{ matrix.configuration }}
path: xemu-macos-arm64-${{ matrix.configuration }}
- name: Build Universal bundle
run: |
mkdir dist
for arch in x86_64 arm64; do
pushd xemu-macos-${arch}-${{ matrix.configuration }}
unzip xemu-macos-${arch}-${{ matrix.configuration }}.zip
popd
pushd dist
unzip -o ../xemu-macos-${arch}-${{ matrix.configuration }}/xemu-macos-${arch}-${{ matrix.configuration }}.zip
popd
done
pushd dist
rm xemu.app/Contents/MacOS/xemu
lipo -create -output xemu.app/Contents/MacOS/xemu \
../xemu-macos-x86_64-${{ matrix.configuration }}/xemu.app/Contents/MacOS/xemu \
../xemu-macos-arm64-${{ matrix.configuration }}/xemu.app/Contents/MacOS/xemu
zip -r ../xemu-macos-universal-${{ matrix.configuration }}.zip *
popd
- name: Upload Build Artifact
uses: actions/upload-artifact@v2
with:
name: xemu-macos-universal-${{ matrix.configuration }}
path: xemu-macos-universal-${{ matrix.configuration }}.zip
Release:
if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/xemu-v'))
runs-on: ubuntu-latest
needs: [Ubuntu, macOS, UbuntuWinCross]
needs: [Ubuntu, macOSBuildUniversal, UbuntuWinCross]
env:
BUILD_TAG:
steps:
@ -244,8 +297,8 @@ jobs:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
with:
upload_url: ${{ steps.create_release.outputs.upload_url }}
asset_name: xemu-macos-release.zip
asset_path: dist/xemu-macos-release/xemu-macos-release.zip
asset_name: xemu-macos-universal-release.zip
asset_path: dist/xemu-macos-universal-release/xemu-macos-universal-release.zip
asset_content_type: application/zip
- name: Upload Release Assets (macOS Debug Build)
id: upload-release-asset-macos-debug
@ -254,8 +307,8 @@ jobs:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
with:
upload_url: ${{ steps.create_release.outputs.upload_url }}
asset_name: xemu-macos-debug.zip
asset_path: dist/xemu-macos-debug/xemu-macos-debug.zip
asset_name: xemu-macos-universal-debug.zip
asset_path: dist/xemu-macos-universal-debug/xemu-macos-universal-debug.zip
asset_content_type: application/zip
# Sync archive version of source (including submodule code) to the
@ -264,7 +317,7 @@ jobs:
# package creation.
PushToPPA:
if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/xemu-v'))
needs: [Ubuntu, macOS, UbuntuWinCross]
needs: [Ubuntu, macOSBuildUniversal, UbuntuWinCross]
runs-on: ubuntu-latest
steps:
- name: Clone Tree

36
Info.plist Normal file
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@ -0,0 +1,36 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>xemu</string>
<key>CFBundleIconFile</key>
<string>xemu.icns</string>
<key>CFBundleIdentifier</key>
<string>xemu.app.0</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>xemu</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1</string>
<key>CFBundleSignature</key>
<string>xemu</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSApplicationCategoryType</key>
<string>public.app-category.games</string>
<key>LSMinimumSystemVersion</key>
<string>10.6</string>
<key>NSPrincipalClass</key>
<string>NSApplication</string>
<key>NSHighResolutionCapable</key>
<true/>
<key>com.apple.security.cs.allow-jit</key>
<true/>
</dict>
</plist>

129
build.sh
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@ -6,6 +6,8 @@ set -o physical # Resolve symlinks when changing directory
project_source_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
target_arch=$(uname -m)
package_windows() {
rm -rf dist
mkdir -p dist
@ -26,20 +28,37 @@ package_wincross() {
}
package_macos() {
#
# Create bundle
#
rm -rf dist
# Copy in executable
mkdir -p dist/xemu.app/Contents/MacOS/
cp build/qemu-system-i386 dist/xemu.app/Contents/MacOS/xemu
exe_path=dist/xemu.app/Contents/MacOS/xemu
lib_path=dist/xemu.app/Contents/Libraries/${target_arch}
lib_rpath=../Libraries/${target_arch}
cp build/qemu-system-i386 ${exe_path}
# Copy in in executable dylib dependencies
mkdir -p dist/xemu.app/Contents/Frameworks
dylibbundler -cd -of -b -x dist/xemu.app/Contents/MacOS/xemu \
-d dist/xemu.app/Contents/Frameworks/ \
-p '@executable_path/../Frameworks/'
-d ${lib_path}/ \
-p "@executable_path/${lib_rpath}/" \
-s ${PWD}/macos-libs/${target_arch}/opt/local/lib/openssl-1.0/ \
-s ${PWD}/macos-libs/${target_arch}/opt/local/lib/
# Fixup some paths dylibbundler missed
for dep in $(otool -L "$exe_path" | grep -e '/opt/local/' | cut -d' ' -f1); do
dep_basename="$(basename $dep)"
new_path="@executable_path/${lib_rpath}/${dep_basename}"
echo "Fixing $exe_path dependency $dep_basename -> $new_path"
install_name_tool -change "$dep" "$new_path" "$exe_path"
done
for lib_path in ${lib_path}/*.dylib; do
for dep in $(otool -L "$lib_path" | grep -e '/opt/local/' | cut -d' ' -f1); do
dep_basename="$(basename $dep)"
new_path="@rpath/${dep_basename}"
echo "Fixing $lib_path dependency $dep_basename -> $new_path"
install_name_tool -change "$dep" "$new_path" "$lib_path"
done
done
# Copy in runtime resources
mkdir -p dist/xemu.app/Contents/Resources
@ -50,45 +69,8 @@ package_macos() {
for r in 16 32 128 256 512; do cp "${project_source_dir}/ui/icons/xemu_${r}x${r}.png" "xemu.iconset/icon_${r}x${r}.png"; done
iconutil --convert icns --output dist/xemu.app/Contents/Resources/xemu.icns xemu.iconset
# Generate Info.plist file
cat <<EOF > dist/xemu.app/Contents/Info.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>xemu</string>
<key>CFBundleIconFile</key>
<string>xemu.icns</string>
<key>CFBundleIdentifier</key>
<string>xemu.app.0</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>xemu</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1</string>
<key>CFBundleSignature</key>
<string>xemu</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSApplicationCategoryType</key>
<string>public.app-category.games</string>
<key>LSMinimumSystemVersion</key>
<string>10.6</string>
<key>NSPrincipalClass</key>
<string>NSApplication</string>
<key>NSHighResolutionCapable</key>
<true/>
</dict>
</plist>
EOF
python3 ./scripts/gen-license.py > dist/LICENSE.txt
cp Info.plist dist/xemu.app/Contents/
python3 ./scripts/gen-license.py --version-file=macos-libs/$target_arch/INSTALLED > dist/LICENSE.txt
}
package_linux() {
@ -162,6 +144,10 @@ do
platform="${2}"
shift 2
;;
'-a'*)
target_arch="${2}"
shift 2
;;
*)
break
;;
@ -185,14 +171,51 @@ case "$platform" in # Adjust compilation options based on platform
postbuild='package_linux'
;;
Darwin)
echo 'Compiling for MacOS...'
sys_cflags='-march=ivybridge'
echo "Compiling for MacOS for $target_arch..."
sdk_base=/Library/Developer/CommandLineTools/SDKs/
sdk_macos_10_14="${sdk_base}/MacOSX10.14.sdk"
sdk_macos_10_15="${sdk_base}/MacOSX10.15.sdk"
sdk_macos_11_1="${sdk_base}/MacOSX11.1.sdk"
if [ "$target_arch" == "arm64" ]; then
macos_min_ver=11.1
if test -d "$sdk_macos_11_1"; then
sdk="$sdk_macos_11_1"
else
echo "SDK not found. Install Xcode Command Line Tools"
exit 1
fi
elif [ "$target_arch" == "x86_64" ]; then
macos_min_ver=10.13
if test -d "$sdk_macos_11_1"; then
sdk="$sdk_macos_11_1"
elif test -d "$sdk_macos_10_15"; then
sdk="$sdk_macos_10_15"
elif test -d "$sdk_macos_10_14"; then
sdk="$sdk_macos_10_14"
else
echo "SDK not found. Install Xcode Command Line Tools"
exit 1
fi
else
echo "Unsupported arch $target_arch"
exit 1
fi
python3 ./scripts/download-macos-libs.py ${target_arch}
lib_prefix=${PWD}/macos-libs/${target_arch}/opt/local
export CFLAGS="-arch ${target_arch} \
-target ${target_arch}-apple-macos${macos_min_ver} \
-isysroot ${sdk} \
-I${lib_prefix}/include \
-mmacosx-version-min=$macos_min_ver"
export LDFLAGS="-arch ${target_arch} \
-isysroot ${sdk}"
if [ "$target_arch" == "x86_64" ]; then
sys_cflags='-march=ivybridge'
fi
sys_ldflags='-headerpad_max_install_names'
opts="$opts --disable-cocoa"
# necessary to find libffi, which is required by gobject
export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}/usr/local/opt/libffi/lib/pkgconfig"
export PKG_CONFIG_PATH="/usr/local/opt/openssl@1.1/lib/pkgconfig:${PKG_CONFIG_PATH}"
echo $PKG_CONFIG_PATH
export PKG_CONFIG_PATH="${lib_prefix}/lib/pkgconfig"
export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:${lib_prefix}/lib/openssl-1.0/pkgconfig/"
opts="$opts --disable-cocoa --cross-prefix="
postbuild='package_macos'
;;
CYGWIN*|MINGW*|MSYS*)

173
scripts/download-macos-libs.py Executable file
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@ -0,0 +1,173 @@
#!/usr/bin/env python3
"""
Downloads required libraries for xemu builds on macOS from MacPorts repositories
"""
# Based on https://github.com/tpoechtrager/osxcross/blob/master/tools/osxcross-macports
# which is based on https://github.com/maci0/pmmacports
from urllib.request import urlopen
import re
import os.path
from tarfile import TarFile
import subprocess
# MIRROR = 'http://packages.macports.org/macports/packages'
MIRROR = 'http://nue.de.packages.macports.org/macports/packages'
class LibInstaller:
DARWIN_TARGET_X64="darwin_17" # macOS 10.13
DARWIN_TARGET_ARM64="darwin_20" # macOS 11.x
def __init__(self, arch):
self._queue = []
self._installed = []
if arch == 'x86_64':
self._darwin_target = self.DARWIN_TARGET_X64
elif arch == 'arm64':
self._darwin_target = self.DARWIN_TARGET_ARM64
else:
assert False, "Add arch"
self._arch = arch
self._extract_path = os.path.realpath(f'./macos-libs/{self._arch}')
if not os.path.exists(self._extract_path):
os.makedirs(self._extract_path)
self._installed_path = os.path.join(self._extract_path, 'INSTALLED')
self._pkgs_path = os.path.realpath(os.path.join(f'./macos-pkgs'))
if not os.path.exists(self._pkgs_path):
os.makedirs(self._pkgs_path)
def get_latest_pkg_filename_url(self, pkg_name):
pkg_base_name = pkg_name.split('-')[0]
pkg_base_url = f'{MIRROR}/{pkg_base_name}'
pkg_list = urlopen(pkg_base_url).read().decode('utf-8')
pkgs = re.findall(pkg_name + r'[\w\.\-\_\+]*?\.' + self._darwin_target + r'\.' + self._arch + r'\.tbz2', pkg_list)
pkg_filename = pkgs[-1]
return pkg_filename, f'{pkg_base_url}/{pkg_filename}'
def is_pkg_installed(self, pkg_name):
if not os.path.exists(self._installed_path):
return False
with open(self._installed_path) as f:
installed = [l.strip().split('=')[0] for l in f.readlines()]
return pkg_name in installed
def mark_pkg_installed(self, pkg_name, pkg_version):
if self.is_pkg_installed(pkg_name):
return
with open(os.path.join(self._extract_path, 'INSTALLED'), 'a+') as f:
f.write(f'{pkg_name}={pkg_version}\n')
def download_file(self, desc, url, dst):
if os.path.exists(dst):
print(f' [+] Already have {desc}')
else:
print(f' [+] Downloading {desc}')
with open(dst, 'wb') as f:
f.write(urlopen(url).read())
def verify_pkg(self, pkg_path, sig_path):
PUBKEYURL="https://svn.macports.org/repository/macports/trunk/base/macports-pubkey.pem"
PUBKEYRMD160="d3a22f5be7184d6575afcc1be6fdb82fd25562e8"
PUBKEYSHA1="214baa965af76ff71187e6c1ac91c559547f48ab"
key_filename = 'macports-pubkey.pem'
dst_key_filename = os.path.join(self._pkgs_path, key_filename)
self.download_file('MacPorts key', PUBKEYURL, dst_key_filename)
rmd160 = subprocess.run('openssl rmd160 "' + dst_key_filename + "\" | awk '{print $2}'",
capture_output=True, shell=True,
check=True).stdout.decode('utf-8').strip()
sha1 = subprocess.run('openssl sha1 "' + dst_key_filename + "\" | awk '{print $2}'",
capture_output=True, shell=True,
check=True).stdout.decode('utf-8').strip()
assert (rmd160 == PUBKEYRMD160 and sha1 == PUBKEYSHA1), 'Invalid MacPorts key'
sha1 = subprocess.run('openssl dgst -ripemd160 '
f'-verify "{dst_key_filename}" '
f'-signature "{sig_path}" "{pkg_path}"',
shell=True, check=True)
def install_pkg(self, pkg_name):
if self.is_pkg_installed(pkg_name):
return
print(f'[*] Fetching {pkg_name}')
pkg_filename, pkg_url = self.get_latest_pkg_filename_url(pkg_name)
pkg_version = re.match(r'^[\w_]+-([\w\.\-\_\+]*?)\.' + self._darwin_target, pkg_filename).groups(1)[0]
dst_pkg_filename = os.path.join(self._pkgs_path, pkg_filename)
print(f' [*] Found package {pkg_filename}')
self.download_file(pkg_filename, pkg_url, dst_pkg_filename)
dst_pkg_sig_filename = dst_pkg_filename + '.rmd160'
pkg_sig_url = pkg_url + '.rmd160'
self.download_file('package signature', pkg_sig_url, dst_pkg_sig_filename)
print(f' [+] Verifying package')
self.verify_pkg(dst_pkg_filename, dst_pkg_sig_filename)
print(f' [+] Looking for dependencies')
tb = TarFile.open(dst_pkg_filename)
pkg_contents_file = tb.extractfile('./+CONTENTS').read().decode('utf-8')
for dep in re.findall(r'@pkgdep (.+)', pkg_contents_file):
print(f' [>] {dep}')
dep = dep.split('-')[0]
self._queue.append(dep)
for dep in re.findall(r'@pkgdep (.+)', pkg_contents_file):
print(f' [>] {dep}')
dep = dep.split('-')[0]
self._queue.append(dep)
print(f' [*] Checking tarball...')
for fpath in tb.getnames():
extracted_path = os.path.realpath(os.path.join(self._extract_path, fpath))
assert extracted_path.startswith(self._extract_path), f'tarball has a global file: {fname}'
print(f' [*] Extracting to {self._extract_path}')
tb.extractall(self._extract_path, numeric_owner=True)
for fpath in tb.getnames():
extracted_path = os.path.realpath(os.path.join(self._extract_path, fpath))
if extracted_path.endswith('.pc'):
print(f' [*] Fixing {extracted_path}')
with open(extracted_path, 'r') as f:
lines = f.readlines()
for i, l in enumerate(lines):
if l.strip().startswith('prefix'):
lines[i] = f'prefix={self._extract_path}/opt/local\n'
break
with open(extracted_path, 'w') as f:
f.write(''.join(lines))
if pkg_name == 'glib2':
fpath = './opt/local/include/glib-2.0/glib/gi18n.h'
extracted_path = os.path.realpath(os.path.join(self._extract_path, fpath))
print(f' [*] Fixing {extracted_path}')
with open(extracted_path, 'r') as f:
lines = f.read()
s = '/opt/local/include/libintl.h'
lines = lines.replace(s, self._extract_path + s)
with open(extracted_path, 'w') as f:
f.write(lines)
self.mark_pkg_installed(pkg_name, pkg_version)
def install_pkgs(self, requested):
self._queue.extend(requested)
while len(self._queue) > 0:
pkg_name = self._queue.pop(0)
self.install_pkg(pkg_name)
def main():
import argparse
ap = argparse.ArgumentParser()
ap.add_argument('arch', choices=('arm64', 'x86_64'))
args = ap.parse_args()
li = LibInstaller(args.arch)
li.install_pkgs([
'libsdl2',
'glib2',
'libsamplerate',
'libpixman',
'libepoxy',
'openssl10'])
if __name__ == '__main__':
main()

21
scripts/gen-license.py
View File

@ -29,6 +29,7 @@ linux = 'linux'
all_platforms = { windows, macos, linux }
current_platform = linux
versions = {}
def banner(s):
space = 1
@ -81,9 +82,7 @@ class Lib:
check=True).stdout.decode('utf-8').strip()
return self._version
elif current_platform == macos and self.pkg_mac:
self._version = subprocess.run(r"brew info " + self.pkg_mac + " | head -n1",
capture_output=True, shell=True,
check=True).stdout.decode('utf-8').strip()
self._version = versions[self.pkg_mac]
return self._version
elif current_platform == linux and self.pkg_ubuntu:
self._version = subprocess.run(r"dpkg -s " + self.pkg_ubuntu + " | grep Version | cut -d: -f2",
@ -246,15 +245,15 @@ Lib('pcre', 'http://pcre.org/',
# glib dep
Lib('gettext', 'https://www.gnu.org/software/gettext/',
lgplv2_1, 'https://git.savannah.gnu.org/gitweb/?p=gettext.git;a=blob_plain;f=gettext-runtime/intl/COPYING.LIB;hb=HEAD',
ships_static={windows}, ships_dynamic={macos}, platform={windows},
ships_static={windows}, ships_dynamic={macos},
pkg_win='gettext', pkg_mac='gettext',
),
# glib dep
Lib('iconv', 'https://www.gnu.org/software/libiconv/',
lgplv2_1, 'https://git.savannah.gnu.org/gitweb/?p=libiconv.git;a=blob_plain;f=COPYING.LIB;hb=HEAD',
ships_static={windows}, platform={windows},
pkg_win='libiconv'
ships_static={windows}, ships_dynamic={macos},
pkg_win='libiconv', pkg_mac='libiconv'
),
Lib('libepoxy', 'https://github.com/anholt/libepoxy',
@ -292,7 +291,7 @@ Lib('openssl', 'https://www.openssl.org/',
# openssl dep
Lib('zlib', 'https://zlib.net/',
zlib, 'https://raw.githubusercontent.com/madler/zlib/master/README', license_lines=(87,106),
ships_static={windows},
ships_static={windows}, ships_dynamic={macos},
pkgconfig=PkgConfig('zlib'), pkg_win='zlib', pkg_mac='zlib', pkg_ubuntu='zlib1g-dev'
),
@ -304,7 +303,7 @@ Lib('libmingw32', 'http://mingw-w64.org/',
Lib('gtk', 'https://www.gtk.org/',
lgplv2_1, 'https://gitlab.gnome.org/GNOME/gtk/-/raw/master/COPYING',
platform=linux,
platform={linux},
pkgconfig=PkgConfig('gtk+-3.0'), pkg_ubuntu='libgtk-3-dev'
),
]
@ -344,12 +343,18 @@ def main():
import argparse
ap = argparse.ArgumentParser()
ap.add_argument('--platform', default='')
ap.add_argument('--version-file', default='')
args = ap.parse_args()
if args.platform == '':
args.platform = sys.platform.lower()
global current_platform
current_platform = args.platform
if args.version_file != '':
with open(args.version_file, 'r') as f:
global versions
versions = {pkg: ver
for pkg, ver in map(lambda l: l.strip().split('='), f.readlines())}
gen_license()
if __name__ == '__main__':