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Pillow/setup.py
Andrew Murray 1105256f2b Added type hints to setup.py
2024-09-07 18:25:44 +10:00

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# > pyroma .
# ------------------------------
# Checking .
# Found Pillow
# ------------------------------
# Final rating: 10/10
# Your cheese is so fresh most people think it's a cream: Mascarpone
# ------------------------------
from __future__ import annotations
import os
import re
import shutil
import struct
import subprocess
import sys
import warnings
from collections.abc import Iterator
from typing import Any
from setuptools import Extension, setup
from setuptools.command.build_ext import build_ext
def get_version() -> str:
version_file = "src/PIL/_version.py"
with open(version_file, encoding="utf-8") as f:
return f.read().split('"')[1]
configuration: dict[str, list[str]] = {}
PILLOW_VERSION = get_version()
FREETYPE_ROOT = None
HARFBUZZ_ROOT = None
FRIBIDI_ROOT = None
IMAGEQUANT_ROOT = None
JPEG2K_ROOT = None
JPEG_ROOT = None
LCMS_ROOT = None
RAQM_ROOT = None
TIFF_ROOT = None
WEBP_ROOT = None
ZLIB_ROOT = None
FUZZING_BUILD = "LIB_FUZZING_ENGINE" in os.environ
if sys.platform == "win32" and sys.version_info >= (3, 14):
import atexit
atexit.register(
lambda: warnings.warn(
f"Pillow {PILLOW_VERSION} does not support Python "
f"{sys.version_info.major}.{sys.version_info.minor} and does not provide "
"prebuilt Windows binaries. We do not recommend building from source on "
"Windows.",
RuntimeWarning,
)
)
_IMAGING = ("decode", "encode", "map", "display", "outline", "path")
_LIB_IMAGING = (
"Access",
"AlphaComposite",
"Resample",
"Reduce",
"Bands",
"BcnDecode",
"BitDecode",
"Blend",
"Chops",
"ColorLUT",
"Convert",
"ConvertYCbCr",
"Copy",
"Crop",
"Dib",
"Draw",
"Effects",
"EpsEncode",
"File",
"Fill",
"Filter",
"FliDecode",
"Geometry",
"GetBBox",
"GifDecode",
"GifEncode",
"HexDecode",
"Histo",
"JpegDecode",
"JpegEncode",
"Matrix",
"ModeFilter",
"Negative",
"Offset",
"Pack",
"PackDecode",
"Palette",
"Paste",
"Quant",
"QuantOctree",
"QuantHash",
"QuantHeap",
"PcdDecode",
"PcxDecode",
"PcxEncode",
"Point",
"RankFilter",
"RawDecode",
"RawEncode",
"Storage",
"SgiRleDecode",
"SunRleDecode",
"TgaRleDecode",
"TgaRleEncode",
"Unpack",
"UnpackYCC",
"UnsharpMask",
"XbmDecode",
"XbmEncode",
"ZipDecode",
"ZipEncode",
"TiffDecode",
"Jpeg2KDecode",
"Jpeg2KEncode",
"BoxBlur",
"QuantPngQuant",
"codec_fd",
)
DEBUG = False
class DependencyException(Exception):
pass
class RequiredDependencyException(Exception):
pass
PLATFORM_MINGW = os.name == "nt" and "GCC" in sys.version
def _dbg(s: str, tp: Any = None) -> None:
if DEBUG:
if tp:
print(s % tp)
return
print(s)
def _find_library_dirs_ldconfig() -> list[str]:
# Based on ctypes.util from Python 2
ldconfig = "ldconfig" if shutil.which("ldconfig") else "/sbin/ldconfig"
args: list[str]
env: dict[str, str]
expr: str
if sys.platform.startswith("linux") or sys.platform.startswith("gnu"):
if struct.calcsize("l") == 4:
machine = os.uname()[4] + "-32"
else:
machine = os.uname()[4] + "-64"
mach_map = {
"x86_64-64": "libc6,x86-64",
"ppc64-64": "libc6,64bit",
"sparc64-64": "libc6,64bit",
"s390x-64": "libc6,64bit",
"ia64-64": "libc6,IA-64",
}
abi_type = mach_map.get(machine, "libc6")
# Assuming GLIBC's ldconfig (with option -p)
# Alpine Linux uses musl that can't print cache
args = [ldconfig, "-p"]
expr = rf".*\({abi_type}.*\) => (.*)"
env = dict(os.environ)
env["LC_ALL"] = "C"
env["LANG"] = "C"
elif sys.platform.startswith("freebsd"):
args = [ldconfig, "-r"]
expr = r".* => (.*)"
env = {}
try:
p = subprocess.Popen(
args, stderr=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env, text=True
)
except OSError: # E.g. command not found
return []
data = p.communicate()[0]
dirs = []
for dll in re.findall(expr, data):
dir = os.path.dirname(dll)
if dir not in dirs:
dirs.append(dir)
return dirs
def _add_directory(
path: list[str], subdir: str | None, where: int | None = None
) -> None:
if subdir is None:
return
subdir = os.path.realpath(subdir)
if os.path.isdir(subdir) and subdir not in path:
if where is None:
_dbg("Appending path %s", subdir)
path.append(subdir)
else:
_dbg("Inserting path %s", subdir)
path.insert(where, subdir)
elif subdir in path and where is not None:
path.remove(subdir)
path.insert(where, subdir)
def _find_include_file(self: pil_build_ext, include: str) -> int:
for directory in self.compiler.include_dirs:
_dbg("Checking for include file %s in %s", (include, directory))
if os.path.isfile(os.path.join(directory, include)):
_dbg("Found %s", include)
return 1
return 0
def _find_library_file(self: pil_build_ext, library: str) -> str | None:
ret = self.compiler.find_library_file(self.compiler.library_dirs, library)
if ret:
_dbg("Found library %s at %s", (library, ret))
else:
_dbg("Couldn't find library %s in %s", (library, self.compiler.library_dirs))
return ret
def _find_include_dir(self: pil_build_ext, dirname: str, include: str) -> bool | str:
for directory in self.compiler.include_dirs:
_dbg("Checking for include file %s in %s", (include, directory))
if os.path.isfile(os.path.join(directory, include)):
_dbg("Found %s in %s", (include, directory))
return True
subdir = os.path.join(directory, dirname)
_dbg("Checking for include file %s in %s", (include, subdir))
if os.path.isfile(os.path.join(subdir, include)):
_dbg("Found %s in %s", (include, subdir))
return subdir
return False
def _cmd_exists(cmd: str) -> bool:
if "PATH" not in os.environ:
return False
return any(
os.access(os.path.join(path, cmd), os.X_OK)
for path in os.environ["PATH"].split(os.pathsep)
)
def _pkg_config(name: str) -> tuple[list[str], list[str]] | None:
command = os.environ.get("PKG_CONFIG", "pkg-config")
for keep_system in (True, False):
try:
command_libs = [command, "--libs-only-L", name]
command_cflags = [command, "--cflags-only-I", name]
stderr = None
if keep_system:
command_libs.append("--keep-system-libs")
command_cflags.append("--keep-system-cflags")
stderr = subprocess.DEVNULL
if not DEBUG:
command_libs.append("--silence-errors")
command_cflags.append("--silence-errors")
libs = re.split(
r"(^|\s+)-L",
subprocess.check_output(command_libs, stderr=stderr)
.decode("utf8")
.strip(),
)[::2][1:]
cflags = re.split(
r"(^|\s+)-I",
subprocess.check_output(command_cflags).decode("utf8").strip(),
)[::2][1:]
return libs, cflags
except Exception:
pass
return None
class pil_build_ext(build_ext):
class ext_feature:
features = [
"zlib",
"jpeg",
"tiff",
"freetype",
"raqm",
"lcms",
"webp",
"jpeg2000",
"imagequant",
"xcb",
]
required = {"jpeg", "zlib"}
vendor: set[str] = set()
def __init__(self) -> None:
self._settings: dict[str, str | bool | None] = {}
for f in self.features:
self.set(f, None)
def require(self, feat: str) -> bool:
return feat in self.required
def get(self, feat: str) -> str | bool | None:
return self._settings[feat]
def set(self, feat: str, value: str | bool | None) -> None:
self._settings[feat] = value
def want(self, feat: str) -> bool:
return self._settings[feat] is None
def want_vendor(self, feat: str) -> bool:
return feat in self.vendor
def __iter__(self) -> Iterator[str]:
yield from self.features
feature = ext_feature()
user_options = (
build_ext.user_options
+ [(f"disable-{x}", None, f"Disable support for {x}") for x in feature]
+ [(f"enable-{x}", None, f"Enable support for {x}") for x in feature]
+ [
(f"vendor-{x}", None, f"Use vendored version of {x}")
for x in ("raqm", "fribidi")
]
+ [
("disable-platform-guessing", None, "Disable platform guessing on Linux"),
("debug", None, "Debug logging"),
]
+ [("add-imaging-libs=", None, "Add libs to _imaging build")]
)
@staticmethod
def check_configuration(option: str, value: str) -> bool | None:
return True if value in configuration.get(option, []) else None
def initialize_options(self) -> None:
self.disable_platform_guessing = self.check_configuration(
"platform-guessing", "disable"
)
self.add_imaging_libs = ""
build_ext.initialize_options(self)
for x in self.feature:
setattr(self, f"disable_{x}", self.check_configuration(x, "disable"))
setattr(self, f"enable_{x}", self.check_configuration(x, "enable"))
for x in ("raqm", "fribidi"):
setattr(self, f"vendor_{x}", self.check_configuration(x, "vendor"))
if self.check_configuration("debug", "true"):
self.debug = True
self.parallel = configuration.get("parallel", [None])[-1]
def finalize_options(self) -> None:
build_ext.finalize_options(self)
if self.debug:
global DEBUG
DEBUG = True
if not self.parallel:
# If --parallel (or -j) wasn't specified, we want to reproduce the same
# behavior as before, that is, auto-detect the number of jobs.
self.parallel = None
cpu_count = os.cpu_count()
if cpu_count is not None:
try:
self.parallel = int(
os.environ.get("MAX_CONCURRENCY", min(4, cpu_count))
)
except TypeError:
pass
for x in self.feature:
if getattr(self, f"disable_{x}"):
setattr(self.feature, x, False)
self.feature.required.discard(x)
_dbg("Disabling %s", x)
if getattr(self, f"enable_{x}"):
msg = f"Conflicting options: --enable-{x} and --disable-{x}"
raise ValueError(msg)
if x == "freetype":
_dbg("--disable-freetype implies --disable-raqm")
if getattr(self, "enable_raqm"):
msg = (
"Conflicting options: --enable-raqm and --disable-freetype"
)
raise ValueError(msg)
setattr(self, "disable_raqm", True)
if getattr(self, f"enable_{x}"):
_dbg("Requiring %s", x)
self.feature.required.add(x)
if x == "raqm":
_dbg("--enable-raqm implies --enable-freetype")
self.feature.required.add("freetype")
for x in ("raqm", "fribidi"):
if getattr(self, f"vendor_{x}"):
if getattr(self, "disable_raqm"):
msg = f"Conflicting options: --vendor-{x} and --disable-raqm"
raise ValueError(msg)
if x == "fribidi" and not getattr(self, "vendor_raqm"):
msg = f"Conflicting options: --vendor-{x} and not --vendor-raqm"
raise ValueError(msg)
_dbg("Using vendored version of %s", x)
self.feature.vendor.add(x)
def _update_extension(
self,
name: str,
libraries: list[str] | list[str | bool | None],
define_macros: list[tuple[str, str | None]] | None = None,
sources: list[str] | None = None,
) -> None:
for extension in self.extensions:
if extension.name == name:
extension.libraries += libraries
if define_macros is not None:
extension.define_macros += define_macros
if sources is not None:
extension.sources += sources
if FUZZING_BUILD:
extension.language = "c++"
extension.extra_link_args = ["--stdlib=libc++"]
break
def _remove_extension(self, name: str) -> None:
for extension in self.extensions:
if extension.name == name:
self.extensions.remove(extension)
break
def get_macos_sdk_path(self) -> str | None:
try:
sdk_path = (
subprocess.check_output(["xcrun", "--show-sdk-path"])
.strip()
.decode("latin1")
)
except Exception:
sdk_path = None
if (
not sdk_path
or sdk_path == "/Applications/Xcode.app/Contents/Developer"
"/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk"
):
commandlinetools_sdk_path = (
"/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
)
if os.path.exists(commandlinetools_sdk_path):
sdk_path = commandlinetools_sdk_path
return sdk_path
def build_extensions(self) -> None:
library_dirs: list[str] = []
include_dirs: list[str] = []
pkg_config = None
if _cmd_exists(os.environ.get("PKG_CONFIG", "pkg-config")):
pkg_config = _pkg_config
#
# add configured kits
for root_name, lib_name in {
"JPEG_ROOT": "libjpeg",
"JPEG2K_ROOT": "libopenjp2",
"TIFF_ROOT": ("libtiff-5", "libtiff-4"),
"ZLIB_ROOT": "zlib",
"FREETYPE_ROOT": "freetype2",
"HARFBUZZ_ROOT": "harfbuzz",
"FRIBIDI_ROOT": "fribidi",
"RAQM_ROOT": "raqm",
"WEBP_ROOT": "libwebp",
"LCMS_ROOT": "lcms2",
"IMAGEQUANT_ROOT": "libimagequant",
}.items():
root = globals()[root_name]
if root is None and root_name in os.environ:
root_prefix = os.environ[root_name]
root = (
os.path.join(root_prefix, "lib"),
os.path.join(root_prefix, "include"),
)
if root is None and pkg_config:
if isinstance(lib_name, str):
_dbg(f"Looking for `{lib_name}` using pkg-config.")
root = pkg_config(lib_name)
else:
for lib_name2 in lib_name:
_dbg(f"Looking for `{lib_name2}` using pkg-config.")
root = pkg_config(lib_name2)
if root:
break
if isinstance(root, tuple):
lib_root, include_root = root
else:
lib_root = include_root = root
if lib_root is not None:
if not isinstance(lib_root, (tuple, list)):
lib_root = (lib_root,)
for lib_dir in lib_root:
_add_directory(library_dirs, lib_dir)
if include_root is not None:
if not isinstance(include_root, (tuple, list)):
include_root = (include_root,)
for include_dir in include_root:
_add_directory(include_dirs, include_dir)
# respect CFLAGS/CPPFLAGS/LDFLAGS
for k in ("CFLAGS", "CPPFLAGS", "LDFLAGS"):
if k in os.environ:
for match in re.finditer(r"-I([^\s]+)", os.environ[k]):
_add_directory(include_dirs, match.group(1))
for match in re.finditer(r"-L([^\s]+)", os.environ[k]):
_add_directory(library_dirs, match.group(1))
# include, rpath, if set as environment variables:
for k in ("C_INCLUDE_PATH", "CPATH", "INCLUDE"):
if k in os.environ:
for d in os.environ[k].split(os.path.pathsep):
_add_directory(include_dirs, d)
for k in ("LD_RUN_PATH", "LIBRARY_PATH", "LIB"):
if k in os.environ:
for d in os.environ[k].split(os.path.pathsep):
_add_directory(library_dirs, d)
_add_directory(library_dirs, os.path.join(sys.prefix, "lib"))
_add_directory(include_dirs, os.path.join(sys.prefix, "include"))
#
# add platform directories
if self.disable_platform_guessing:
pass
elif sys.platform == "cygwin":
# pythonX.Y.dll.a is in the /usr/lib/pythonX.Y/config directory
self.compiler.shared_lib_extension = ".dll.a"
_add_directory(
library_dirs,
os.path.join(
"/usr/lib", "python{}.{}".format(*sys.version_info), "config"
),
)
elif sys.platform == "darwin":
# attempt to make sure we pick freetype2 over other versions
_add_directory(include_dirs, "/sw/include/freetype2")
_add_directory(include_dirs, "/sw/lib/freetype2/include")
# fink installation directories
_add_directory(library_dirs, "/sw/lib")
_add_directory(include_dirs, "/sw/include")
# darwin ports installation directories
_add_directory(library_dirs, "/opt/local/lib")
_add_directory(include_dirs, "/opt/local/include")
# if Homebrew is installed, use its lib and include directories
try:
prefix = (
subprocess.check_output(["brew", "--prefix"])
.strip()
.decode("latin1")
)
except Exception:
# Homebrew not installed
prefix = None
ft_prefix = None
if prefix:
# add Homebrew's include and lib directories
_add_directory(library_dirs, os.path.join(prefix, "lib"))
_add_directory(include_dirs, os.path.join(prefix, "include"))
_add_directory(
include_dirs, os.path.join(prefix, "opt", "zlib", "include")
)
ft_prefix = os.path.join(prefix, "opt", "freetype")
if ft_prefix and os.path.isdir(ft_prefix):
# freetype might not be linked into Homebrew's prefix
_add_directory(library_dirs, os.path.join(ft_prefix, "lib"))
_add_directory(include_dirs, os.path.join(ft_prefix, "include"))
else:
# fall back to freetype from XQuartz if
# Homebrew's freetype is missing
_add_directory(library_dirs, "/usr/X11/lib")
_add_directory(include_dirs, "/usr/X11/include")
sdk_path = self.get_macos_sdk_path()
if sdk_path:
_add_directory(library_dirs, os.path.join(sdk_path, "usr", "lib"))
_add_directory(include_dirs, os.path.join(sdk_path, "usr", "include"))
for extension in self.extensions:
extension.extra_compile_args = ["-Wno-nullability-completeness"]
elif (
sys.platform.startswith("linux")
or sys.platform.startswith("gnu")
or sys.platform.startswith("freebsd")
):
for dirname in _find_library_dirs_ldconfig():
_add_directory(library_dirs, dirname)
if sys.platform.startswith("linux") and os.environ.get("ANDROID_ROOT"):
# termux support for android.
# system libraries (zlib) are installed in /system/lib
# headers are at $PREFIX/include
# user libs are at $PREFIX/lib
_add_directory(
library_dirs,
os.path.join(
os.environ["ANDROID_ROOT"],
"lib" if struct.calcsize("l") == 4 else "lib64",
),
)
elif sys.platform.startswith("netbsd"):
_add_directory(library_dirs, "/usr/pkg/lib")
_add_directory(include_dirs, "/usr/pkg/include")
elif sys.platform.startswith("sunos5"):
_add_directory(library_dirs, "/opt/local/lib")
_add_directory(include_dirs, "/opt/local/include")
# FIXME: check /opt/stuff directories here?
# standard locations
if not self.disable_platform_guessing:
_add_directory(library_dirs, "/usr/local/lib")
_add_directory(include_dirs, "/usr/local/include")
_add_directory(library_dirs, "/usr/lib")
_add_directory(include_dirs, "/usr/include")
# alpine, at least
_add_directory(library_dirs, "/lib")
if sys.platform == "win32":
# on Windows, look for the OpenJPEG libraries in the location that
# the official installer puts them
program_files = os.environ.get("ProgramFiles", "")
best_version = (0, 0)
best_path = None
for name in os.listdir(program_files):
if name.startswith("OpenJPEG "):
version = tuple(int(x) for x in name[9:].strip().split("."))
if version > best_version:
best_version = version
best_path = os.path.join(program_files, name)
if best_path:
_dbg("Adding %s to search list", best_path)
_add_directory(library_dirs, os.path.join(best_path, "lib"))
_add_directory(include_dirs, os.path.join(best_path, "include"))
#
# insert new dirs *before* default libs, to avoid conflicts
# between Python PYD stub libs and real libraries
self.compiler.library_dirs = library_dirs + self.compiler.library_dirs
self.compiler.include_dirs = include_dirs + self.compiler.include_dirs
#
# look for available libraries
feature = self.feature
if feature.want("zlib"):
_dbg("Looking for zlib")
if _find_include_file(self, "zlib.h"):
if _find_library_file(self, "z"):
feature.set("zlib", "z")
elif sys.platform == "win32" and _find_library_file(self, "zlib"):
feature.set("zlib", "zlib") # alternative name
if feature.want("jpeg"):
_dbg("Looking for jpeg")
if _find_include_file(self, "jpeglib.h"):
if _find_library_file(self, "jpeg"):
feature.set("jpeg", "jpeg")
elif sys.platform == "win32" and _find_library_file(self, "libjpeg"):
feature.set("jpeg", "libjpeg") # alternative name
feature.set("openjpeg_version", None)
if feature.want("jpeg2000"):
_dbg("Looking for jpeg2000")
best_version: tuple[int, ...] | None = None
best_path = None
# Find the best version
for directory in self.compiler.include_dirs:
_dbg("Checking for openjpeg-#.# in %s", directory)
try:
listdir = os.listdir(directory)
except Exception:
# OSError, FileNotFoundError
continue
for name in listdir:
if name.startswith("openjpeg-") and os.path.isfile(
os.path.join(directory, name, "openjpeg.h")
):
_dbg("Found openjpeg.h in %s/%s", (directory, name))
version = tuple(int(x) for x in name[9:].split("."))
if best_version is None or version > best_version:
best_version = version
best_path = os.path.join(directory, name)
_dbg(
"Best openjpeg version %s so far in %s",
(best_version, best_path),
)
if best_version and _find_library_file(self, "openjp2"):
# Add the directory to the include path so we can include
# <openjpeg.h> rather than having to cope with the versioned
# include path
_add_directory(self.compiler.include_dirs, best_path, 0)
feature.set("jpeg2000", "openjp2")
feature.set("openjpeg_version", ".".join(str(x) for x in best_version))
if feature.want("imagequant"):
_dbg("Looking for imagequant")
if _find_include_file(self, "libimagequant.h"):
if _find_library_file(self, "imagequant"):
feature.set("imagequant", "imagequant")
elif _find_library_file(self, "libimagequant"):
feature.set("imagequant", "libimagequant")
if feature.want("tiff"):
_dbg("Looking for tiff")
if _find_include_file(self, "tiff.h"):
if _find_library_file(self, "tiff"):
feature.set("tiff", "tiff")
if sys.platform in ["win32", "darwin"] and _find_library_file(
self, "libtiff"
):
feature.set("tiff", "libtiff")
if feature.want("freetype"):
_dbg("Looking for freetype")
if _find_library_file(self, "freetype"):
# look for freetype2 include files
freetype_version = 0
for subdir in self.compiler.include_dirs:
_dbg("Checking for include file %s in %s", ("ft2build.h", subdir))
if os.path.isfile(os.path.join(subdir, "ft2build.h")):
_dbg("Found %s in %s", ("ft2build.h", subdir))
freetype_version = 21
subdir = os.path.join(subdir, "freetype2")
break
subdir = os.path.join(subdir, "freetype2")
_dbg("Checking for include file %s in %s", ("ft2build.h", subdir))
if os.path.isfile(os.path.join(subdir, "ft2build.h")):
_dbg("Found %s in %s", ("ft2build.h", subdir))
freetype_version = 21
break
if freetype_version:
feature.set("freetype", "freetype")
if subdir:
_add_directory(self.compiler.include_dirs, subdir, 0)
if feature.get("freetype") and feature.want("raqm"):
if not feature.want_vendor("raqm"): # want system Raqm
_dbg("Looking for Raqm")
if _find_include_file(self, "raqm.h"):
if _find_library_file(self, "raqm"):
feature.set("raqm", "raqm")
elif _find_library_file(self, "libraqm"):
feature.set("raqm", "libraqm")
else: # want to build Raqm from src/thirdparty
_dbg("Looking for HarfBuzz")
feature.set("harfbuzz", None)
hb_dir = _find_include_dir(self, "harfbuzz", "hb.h")
if hb_dir:
if isinstance(hb_dir, str):
_add_directory(self.compiler.include_dirs, hb_dir, 0)
if _find_library_file(self, "harfbuzz"):
feature.set("harfbuzz", "harfbuzz")
if feature.get("harfbuzz"):
if not feature.want_vendor("fribidi"): # want system FriBiDi
_dbg("Looking for FriBiDi")
feature.set("fribidi", None)
fribidi_dir = _find_include_dir(self, "fribidi", "fribidi.h")
if fribidi_dir:
if isinstance(fribidi_dir, str):
_add_directory(
self.compiler.include_dirs, fribidi_dir, 0
)
if _find_library_file(self, "fribidi"):
feature.set("fribidi", "fribidi")
feature.set("raqm", True)
else: # want to build FriBiDi shim from src/thirdparty
feature.set("raqm", True)
if feature.want("lcms"):
_dbg("Looking for lcms")
if _find_include_file(self, "lcms2.h"):
if _find_library_file(self, "lcms2"):
feature.set("lcms", "lcms2")
elif _find_library_file(self, "lcms2_static"):
# alternate Windows name.
feature.set("lcms", "lcms2_static")
if feature.want("webp"):
_dbg("Looking for webp")
if all(
_find_include_file(self, "webp/" + include)
for include in ("encode.h", "decode.h", "mux.h", "demux.h")
):
# In Google's precompiled zip it is called "libwebp"
for prefix in ("", "lib"):
if all(
_find_library_file(self, prefix + library)
for library in ("webp", "webpmux", "webpdemux")
):
feature.set("webp", prefix + "webp")
break
if feature.want("xcb"):
_dbg("Looking for xcb")
if _find_include_file(self, "xcb/xcb.h"):
if _find_library_file(self, "xcb"):
feature.set("xcb", "xcb")
for f in feature:
if not feature.get(f) and feature.require(f):
if f in ("jpeg", "zlib"):
raise RequiredDependencyException(f)
raise DependencyException(f)
#
# core library
libs: list[str | bool | None] = []
libs.extend(self.add_imaging_libs.split())
defs: list[tuple[str, str | None]] = []
if feature.get("tiff"):
libs.append(feature.get("tiff"))
defs.append(("HAVE_LIBTIFF", None))
if sys.platform == "win32":
# This define needs to be defined if-and-only-if it was defined
# when compiling LibTIFF. LibTIFF doesn't expose it in `tiffconf.h`,
# so we have to guess; by default it is defined in all Windows builds.
# See #4237, #5243, #5359 for more information.
defs.append(("USE_WIN32_FILEIO", None))
if feature.get("jpeg"):
libs.append(feature.get("jpeg"))
defs.append(("HAVE_LIBJPEG", None))
if feature.get("jpeg2000"):
libs.append(feature.get("jpeg2000"))
defs.append(("HAVE_OPENJPEG", None))
if sys.platform == "win32" and not PLATFORM_MINGW:
defs.append(("OPJ_STATIC", None))
if feature.get("zlib"):
libs.append(feature.get("zlib"))
defs.append(("HAVE_LIBZ", None))
if feature.get("imagequant"):
libs.append(feature.get("imagequant"))
defs.append(("HAVE_LIBIMAGEQUANT", None))
if feature.get("xcb"):
libs.append(feature.get("xcb"))
defs.append(("HAVE_XCB", None))
if sys.platform == "win32":
libs.extend(["kernel32", "user32", "gdi32"])
if struct.unpack("h", b"\0\1")[0] == 1:
defs.append(("WORDS_BIGENDIAN", None))
defs.append(("PILLOW_VERSION", f'"{PILLOW_VERSION}"'))
self._update_extension("PIL._imaging", libs, defs)
#
# additional libraries
if feature.get("freetype"):
srcs = []
libs = ["freetype"]
defs = []
if feature.get("raqm"):
if not feature.want_vendor("raqm"): # using system Raqm
defs.append(("HAVE_RAQM", None))
defs.append(("HAVE_RAQM_SYSTEM", None))
libs.append(feature.get("raqm"))
else: # building Raqm from src/thirdparty
defs.append(("HAVE_RAQM", None))
srcs.append("src/thirdparty/raqm/raqm.c")
libs.append(feature.get("harfbuzz"))
if not feature.want_vendor("fribidi"): # using system FriBiDi
defs.append(("HAVE_FRIBIDI_SYSTEM", None))
libs.append(feature.get("fribidi"))
else: # building FriBiDi shim from src/thirdparty
srcs.append("src/thirdparty/fribidi-shim/fribidi.c")
self._update_extension("PIL._imagingft", libs, defs, srcs)
else:
self._remove_extension("PIL._imagingft")
if feature.get("lcms"):
libs = [feature.get("lcms")]
if sys.platform == "win32":
libs.extend(["user32", "gdi32"])
self._update_extension("PIL._imagingcms", libs)
else:
self._remove_extension("PIL._imagingcms")
webp = feature.get("webp")
if isinstance(webp, str):
libs = [webp, webp + "mux", webp + "demux"]
self._update_extension("PIL._webp", libs)
else:
self._remove_extension("PIL._webp")
tk_libs = ["psapi"] if sys.platform in ("win32", "cygwin") else []
self._update_extension("PIL._imagingtk", tk_libs)
build_ext.build_extensions(self)
#
# sanity checks
self.summary_report(feature)
def summary_report(self, feature: ext_feature) -> None:
print("-" * 68)
print("PIL SETUP SUMMARY")
print("-" * 68)
print(f"version Pillow {PILLOW_VERSION}")
version = sys.version.split("[")
print(f"platform {sys.platform} {version[0].strip()}")
for v in version[1:]:
print(f" [{v.strip()}")
print("-" * 68)
raqm_extra_info = ""
if feature.want_vendor("raqm"):
raqm_extra_info += "bundled"
if feature.want_vendor("fribidi"):
raqm_extra_info += ", FriBiDi shim"
options = [
(feature.get("jpeg"), "JPEG"),
(
feature.get("jpeg2000"),
"OPENJPEG (JPEG2000)",
feature.get("openjpeg_version"),
),
(feature.get("zlib"), "ZLIB (PNG/ZIP)"),
(feature.get("imagequant"), "LIBIMAGEQUANT"),
(feature.get("tiff"), "LIBTIFF"),
(feature.get("freetype"), "FREETYPE2"),
(feature.get("raqm"), "RAQM (Text shaping)", raqm_extra_info),
(feature.get("lcms"), "LITTLECMS2"),
(feature.get("webp"), "WEBP"),
(feature.get("xcb"), "XCB (X protocol)"),
]
all = 1
for option in options:
if option[0]:
extra_info = ""
if len(option) >= 3 and option[2]:
extra_info = f" ({option[2]})"
print(f"--- {option[1]} support available{extra_info}")
else:
print(f"*** {option[1]} support not available")
all = 0
print("-" * 68)
if not all:
print("To add a missing option, make sure you have the required")
print("library and headers.")
print(
"See https://pillow.readthedocs.io/en/latest/installation."
"html#building-from-source"
)
print("")
print("To check the build, run the selftest.py script.")
print("")
def debug_build() -> bool:
return hasattr(sys, "gettotalrefcount") or FUZZING_BUILD
files = ["src/_imaging.c"]
for src_file in _IMAGING:
files.append("src/" + src_file + ".c")
for src_file in _LIB_IMAGING:
files.append(os.path.join("src/libImaging", src_file + ".c"))
ext_modules = [
Extension("PIL._imaging", files),
Extension("PIL._imagingft", ["src/_imagingft.c"]),
Extension("PIL._imagingcms", ["src/_imagingcms.c"]),
Extension("PIL._webp", ["src/_webp.c"]),
Extension("PIL._imagingtk", ["src/_imagingtk.c", "src/Tk/tkImaging.c"]),
Extension("PIL._imagingmath", ["src/_imagingmath.c"]),
Extension("PIL._imagingmorph", ["src/_imagingmorph.c"]),
]
# parse configuration from _custom_build/backend.py
while sys.argv[-1].startswith("--pillow-configuration="):
_, key, value = sys.argv.pop().split("=", 2)
configuration.setdefault(key, []).append(value)
try:
setup(
cmdclass={"build_ext": pil_build_ext},
ext_modules=ext_modules,
zip_safe=not (debug_build() or PLATFORM_MINGW),
)
except RequiredDependencyException as err:
msg = f"""
The headers or library files could not be found for {str(err)},
a required dependency when compiling Pillow from source.
Please see the install instructions at:
https://pillow.readthedocs.io/en/latest/installation/basic-installation.html
"""
sys.stderr.write(msg)
raise RequiredDependencyException(msg)
except DependencyException as err:
msg = f"""
The headers or library files could not be found for {str(err)},
which was requested by the option flag --enable-{str(err)}
"""
sys.stderr.write(msg)
raise DependencyException(msg)
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