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# This will build a FreeType binary for bundling with freetype-py on Windows,
# Linux and macOS. The environment determines if it's a 32 or 64 bit build (on
# Windows, set $env:PYTHON_ARCH="64" for a x64 build; on Linux, set it to "32"
# to explicitly make a 32 bit build).
# It can be used stand-alone, in conjunction with setup.py and on CI services
# like Travis and Appveyor. You need CMake and some C/C++ compiler suite (e.g.
# GCC, Visual Studio Community 2017, ...)
import distutils.dir_util
import distutils.file_util
import distutils.spawn
import glob
import hashlib
import os
import shutil
import ssl
import subprocess
import sys
import tarfile
import urllib.request
from os import path
import platform
# Needed for the GitHub Actions macOS CI runner, which appears to come without CAs.
import certifi
FREETYPE_HOST = "https://mirrors.sarata.com/non-gnu/freetype/"
FREETYPE_TARBALL = "freetype-2.13.2.tar.xz"
FREETYPE_URL = FREETYPE_HOST + FREETYPE_TARBALL
FREETYPE_SHA256 = "12991c4e55c506dd7f9b765933e62fd2be2e06d421505d7950a132e4f1bb484d"
HARFBUZZ_HOST = "https://github.com/harfbuzz/harfbuzz/releases/download/8.3.0/"
HARFBUZZ_TARBALL = "harfbuzz-8.3.0.tar.xz"
HARFBUZZ_URL = HARFBUZZ_HOST + HARFBUZZ_TARBALL
HARFBUZZ_SHA256 = "109501eaeb8bde3eadb25fab4164e993fbace29c3d775bcaa1c1e58e2f15f847"
root_dir = "."
build_dir = path.join(root_dir, "build")
# CMake requires an absolute path to a prefix.
prefix_dir = path.abspath(path.join(build_dir, "local"))
lib_dir = path.join(prefix_dir, "lib")
build_dir_ft = path.join(build_dir, FREETYPE_TARBALL.split(".tar")[0], "build")
build_dir_hb = path.join(build_dir, HARFBUZZ_TARBALL.split(".tar")[0], "build")
CMAKE_GLOBAL_SWITCHES = (
"-DCMAKE_COLOR_MAKEFILE=false "
'-DCMAKE_PREFIX_PATH="{}" '
'-DCMAKE_INSTALL_PREFIX="{}" '
).format(prefix_dir, prefix_dir)
# Try to use Ninja to build things if it's available. Much faster.
# On Windows, I first need to figure out how to make it aware of VC, bitness,
# etc.
if sys.platform != "win32" and distutils.spawn.find_executable("ninja"):
CMAKE_GLOBAL_SWITCHES += "-G Ninja "
bitness = None
if sys.platform == "win32":
if os.environ.get("PYTHON_ARCH", "") == "64":
print("# Making a 64 bit build.")
bitness = 64
CMAKE_GLOBAL_SWITCHES += (
"-DCMAKE_GENERATOR_PLATFORM=x64 " '-DCMAKE_GENERATOR_TOOLSET="host=x64" '
)
else:
print("# Making a 32 bit build.")
bitness = 32
if sys.platform == "darwin":
print("# Making a 64 bit build.")
CMAKE_GLOBAL_SWITCHES += (
'-DCMAKE_OSX_ARCHITECTURES="x86_64;arm64" '
'-DCMAKE_OSX_DEPLOYMENT_TARGET="10.9" '
'-DCMAKE_C_FLAGS="-O2" '
'-DCMAKE_CXX_FLAGS="-O2" '
)
bitness = 64
if "linux" in sys.platform:
c_flags = cxx_flags = "-O2"
ld_flags = ""
if platform.machine() == "x86_64":
if (
os.environ.get("PYTHON_ARCH", "") == "32"
or platform.architecture() == "32bit"
):
print("# Making a 32 bit build.")
# On a 64 bit Debian/Ubuntu, this needs gcc-multilib and g++-multilib.
# On a 64 bit Fedora, install glibc-devel and libstdc++-devel.
c_flags = "-m32 {}".format(c_flags)
cxx_flags = "-m32 {}".format(cxx_flags)
ld_flags = "-m32"
bitness = 32
else:
print("# Making a 64 bit build.")
c_flags = "-m64 {}".format(c_flags)
cxx_flags = "-m64 {}".format(cxx_flags)
ld_flags = "-m64"
bitness = 64
else:
print("# Making a '{}' build.".format(platform.machine()))
if platform.architecture() == "32bit":
bitness = 32
else:
bitness = 64
CMAKE_GLOBAL_SWITCHES += (
'-DCMAKE_C_FLAGS="{}" '.format(c_flags) +
'-DCMAKE_CXX_FLAGS="{}" '.format(cxx_flags) +
'-DCMAKE_LD_FLAGS="{}" '.format(ld_flags)
)
def shell(cmd, cwd=None):
"""Run a shell command specified by cmd string."""
subprocess.run(cmd, shell=True, check=True, cwd=cwd)
def download(url, target_path):
"""Download url to target_path."""
print("Downloading {}...".format(url))
# Create a custom context and fill in certifi CAs because GitHub Action's macOS CI
# runners don't seem to have certificates installed, leading to a download
# failure...
context = ssl.create_default_context(
ssl.Purpose.SERVER_AUTH, cafile=certifi.where()
)
with urllib.request.urlopen(url, context=context) as response, open(
target_path, "wb"
) as f:
shutil.copyfileobj(response, f)
def ensure_downloaded(url, sha256_sum):
"""Download .tar.bz2 tarball at url unless already present, extract."""
filename = path.basename(url)
tarball = path.join(build_dir, filename)
tarball_dir = filename.split(".tar")[0]
if not path.exists(tarball):
download(url, tarball)
if not path.exists(path.join(build_dir, tarball_dir, "CMakeLists.txt")):
hasher = hashlib.sha256()
with open(tarball, "rb") as tb:
hasher.update(tb.read())
assert hasher.hexdigest() == sha256_sum
with tarfile.open(tarball, "r:xz") as tb:
tb.extractall(build_dir)
distutils.dir_util.mkpath(build_dir)
distutils.dir_util.mkpath(prefix_dir)
distutils.dir_util.mkpath(build_dir_ft)
distutils.dir_util.mkpath(build_dir_hb)
ensure_downloaded(FREETYPE_URL, FREETYPE_SHA256)
ensure_downloaded(HARFBUZZ_URL, HARFBUZZ_SHA256)
print("# First, build FreeType without Harfbuzz support")
shell(
"cmake -DBUILD_SHARED_LIBS=OFF "
"-DCMAKE_DISABLE_FIND_PACKAGE_HarfBuzz=TRUE -DFT_WITH_HARFBUZZ=OFF "
"-DCMAKE_DISABLE_FIND_PACKAGE_PNG=TRUE "
"-DCMAKE_DISABLE_FIND_PACKAGE_BZip2=TRUE "
"-DCMAKE_DISABLE_FIND_PACKAGE_ZLIB=TRUE "
"-DCMAKE_DISABLE_FIND_PACKAGE_BrotliDec=TRUE "
"{} ..".format(CMAKE_GLOBAL_SWITCHES),
cwd=build_dir_ft,
)
shell("cmake --build . --config Release --target install --parallel", cwd=build_dir_ft)
print("\n# Next, build Harfbuzz and point it to the FreeType we just build.")
shell(
"cmake -DBUILD_SHARED_LIBS=OFF " +
# https://stackoverflow.com/questions/3961446
("-DCMAKE_POSITION_INDEPENDENT_CODE=ON " if bitness > 32 else "")
+ "-DHB_HAVE_FREETYPE=ON -DHB_HAVE_GLIB=OFF -DHB_HAVE_CORETEXT=OFF "
"{} ..".format(CMAKE_GLOBAL_SWITCHES),
cwd=build_dir_hb,
)
shell("cmake --build . --config Release --target install --parallel", cwd=build_dir_hb)
print("\n# Lastly, rebuild FreeType, this time with Harfbuzz support.")
harfbuzz_includes = path.join(prefix_dir, "include", "harfbuzz")
shell(
"cmake -DBUILD_SHARED_LIBS=ON "
"-DCMAKE_DISABLE_FIND_PACKAGE_HarfBuzz=FALSE -DFT_WITH_HARFBUZZ=ON "
"-DCMAKE_DISABLE_FIND_PACKAGE_PNG=TRUE "
"-DCMAKE_DISABLE_FIND_PACKAGE_BZip2=TRUE "
"-DCMAKE_DISABLE_FIND_PACKAGE_ZLIB=TRUE "
"-DCMAKE_DISABLE_FIND_PACKAGE_BrotliDec=TRUE "
'-DPKG_CONFIG_EXECUTABLE="" ' # Prevent finding system libraries
'-DHARFBUZZ_INCLUDE_DIRS="{}" '
"-DSKIP_INSTALL_HEADERS=ON "
"{} ..".format(harfbuzz_includes, CMAKE_GLOBAL_SWITCHES),
cwd=build_dir_ft,
)
shell("cmake --build . --config Release --target install --parallel", cwd=build_dir_ft)
# Move libraries from PREFIX/bin to PREFIX/lib if need be (Windows DLLs are
# treated as runtimes and may end up in bin/). This keeps setup.py simple.
target_dir = path.join(prefix_dir, "lib")
bin_so = glob.glob(path.join(prefix_dir, "bin", "*freetype*"))
bin_so.extend(glob.glob(path.join(prefix_dir, "lib64", "*freetype*")))
bin_so.extend(glob.glob(path.join(prefix_dir, "lib", "freetype*.dll")))
for so in bin_so:
so_target_name = path.basename(so)
if not so_target_name.startswith("lib"):
so_target_name = "lib" + so_target_name
lib_path = path.join(target_dir, so_target_name)
print("# Moving '{}' to '{}'".format(so, lib_path))
if not path.exists(target_dir):
os.makedirs(target_dir)
os.replace(so, lib_path)
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