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Merge pull request #1790 from wiredfool/setup_cleanup

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Setup cleanup
This commit is contained in:
wiredfool 2016-04-10 10:15:43 +01:00
commit 80758e1bd7
2 changed files with 106 additions and 48 deletions
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5
docs/installation.rst
View File

@ -202,6 +202,11 @@ Build Options
the libraries are not found. Webpmux (WebP metadata) relies on WebP
support. Tcl and Tk also must be used together.
* Build flags: ``--debug``. Adds a debugging flag to the include and
library search process to dump all paths searched for and found to
stdout.
Sample Usage::
$ MAX_CONCURRENCY=1 python setup.py build_ext --enable-[feature] install

149
setup.py
View File

@ -37,21 +37,35 @@ _LIB_IMAGING = (
"XbmEncode", "ZipDecode", "ZipEncode", "TiffDecode", "Incremental",
"Jpeg2KDecode", "Jpeg2KEncode", "BoxBlur")
DEBUG = False
def _add_directory(path, dir, where=None):
if dir is None:
def _dbg(s, tp=None):
if DEBUG:
if tp:
print(s % tp)
return
print(s)
def _add_directory(path, subdir, where=None):
if subdir is None:
return
dir = os.path.realpath(dir)
if os.path.isdir(dir) and dir not in path:
subdir = os.path.realpath(subdir)
if os.path.isdir(subdir) and subdir not in path:
if where is None:
path.append(dir)
_dbg('Appending path %s', subdir)
path.append(subdir)
else:
path.insert(where, dir)
_dbg('Inserting path %s', subdir)
path.insert(where, subdir)
def _find_include_file(self, include):
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
@ -61,15 +75,22 @@ def _find_library_file(self, library):
# lib extension, not the system shared lib extension: e.g. .cpython-33.so
# vs .so. See Python bug http://bugs.python.org/16754
if 'cpython' in self.compiler.shared_lib_extension:
_dbg('stripping cpython from shared library extension %s',
self.compiler.shared_lib_extension)
existing = self.compiler.shared_lib_extension
self.compiler.shared_lib_extension = "." + existing.split('.')[-1]
ret = self.compiler.find_library_file(self.compiler.library_dirs,
library)
self.compiler.shared_lib_extension = existing
return ret
else:
return self.compiler.find_library_file(self.compiler.library_dirs,
library)
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 _lib_include(root):
@ -100,10 +121,15 @@ LCMS_ROOT = None
class pil_build_ext(build_ext):
class feature:
zlib = jpeg = tiff = freetype = tcl = tk = lcms = webp = webpmux = None
jpeg2000 = None
features = ['zlib', 'jpeg', 'tiff', 'freetype', 'tcl', 'tk', 'lcms',
'webp', 'webpmux', 'jpeg2000']
required = set(['jpeg', 'zlib'])
def __init__(self):
for f in self.features:
setattr(self, f, None)
def require(self, feat):
return feat in self.required
@ -111,9 +137,8 @@ class pil_build_ext(build_ext):
return getattr(self, feat) is None
def __iter__(self):
for x in dir(self):
if x[1] != '_':
yield x
for x in self.features:
yield x
feature = feature()
@ -121,7 +146,7 @@ class pil_build_ext(build_ext):
('disable-%s' % x, None, 'Disable support for %s' % x) for x in feature
] + [
('enable-%s' % x, None, 'Enable support for %s' % x) for x in feature
]
] + [('debug', None, 'Debug logging')]
def initialize_options(self):
build_ext.initialize_options(self)
@ -131,15 +156,20 @@ class pil_build_ext(build_ext):
def finalize_options(self):
build_ext.finalize_options(self)
if self.debug:
global DEBUG
DEBUG = True
for x in self.feature:
if getattr(self, 'disable_%s' % x):
setattr(self.feature, x, False)
self.feature.required.discard(x)
_dbg('Disabling %s', x)
if getattr(self, 'enable_%s' % x):
raise ValueError(
'Conflicting options: --enable-%s and --disable-%s' %
(x, x))
if getattr(self, 'enable_%s' % x):
_dbg('Requiring %s', x)
self.feature.required.add(x)
def build_extensions(self):
@ -314,6 +344,9 @@ class pil_build_ext(build_ext):
if _tkinter:
TCL_VERSION = _tkinter.TCL_VERSION[:3]
_dbg('Tkinter found, will check for Tcl/Tk')
else:
_dbg('Tkinter not found')
if _tkinter and not TCL_ROOT:
# we have Tkinter but the TCL_ROOT variable was not set;
@ -334,6 +367,7 @@ class pil_build_ext(build_ext):
]
for TCL_ROOT in roots:
TCL_ROOT = os.path.abspath(TCL_ROOT)
_dbg('Checking %s for tk.h', TCL_ROOT)
if os.path.isfile(os.path.join(TCL_ROOT, "include", "tk.h")):
# FIXME: use distutils logging (?)
print("--- using Tcl/Tk libraries at", TCL_ROOT)
@ -342,6 +376,7 @@ class pil_build_ext(build_ext):
break
else:
TCL_ROOT = None
_dbg('Tcl/tk not found')
# add standard directories
@ -373,6 +408,7 @@ class pil_build_ext(build_ext):
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'))
@ -390,6 +426,7 @@ class pil_build_ext(build_ext):
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.zlib = "z"
@ -398,6 +435,7 @@ class pil_build_ext(build_ext):
feature.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.jpeg = "jpeg"
@ -407,11 +445,13 @@ class pil_build_ext(build_ext):
feature.openjpeg_version = None
if feature.want('jpeg2000'):
_dbg('Looking for jpeg2000')
best_version = 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:
@ -421,10 +461,13 @@ class pil_build_ext(build_ext):
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
@ -436,34 +479,42 @@ class pil_build_ext(build_ext):
best_version])
if feature.want('tiff'):
if _find_library_file(self, "tiff"):
feature.tiff = "tiff"
if sys.platform == "win32" and _find_library_file(self, "libtiff"):
feature.tiff = "libtiff"
if (sys.platform == "darwin" and
_find_library_file(self, "libtiff")):
feature.tiff = "libtiff"
_dbg('Looking for tiff')
if _find_include_file(self, 'tiff.h'):
if _find_library_file(self, "tiff"):
feature.tiff = "tiff"
if sys.platform == "win32" and _find_library_file(self, "libtiff"):
feature.tiff = "libtiff"
if (sys.platform == "darwin" and
_find_library_file(self, "libtiff")):
feature.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 dir in self.compiler.include_dirs:
if os.path.isfile(os.path.join(dir, "ft2build.h")):
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
dir = os.path.join(dir, "freetype2")
subdir = os.path.join(subdir, "freetype2")
break
dir = os.path.join(dir, "freetype2")
if os.path.isfile(os.path.join(dir, "ft2build.h")):
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.freetype = "freetype"
feature.freetype_version = freetype_version
if dir:
_add_directory(self.compiler.include_dirs, dir, 0)
if subdir:
_add_directory(self.compiler.include_dirs, subdir, 0)
if feature.want('lcms'):
_dbg('Looking for lcms')
if _find_include_file(self, "lcms2.h"):
if _find_library_file(self, "lcms2"):
feature.lcms = "lcms2"
@ -475,17 +526,20 @@ class pil_build_ext(build_ext):
# the library names may vary somewhat (e.g. tcl85 or tcl8.5)
version = TCL_VERSION[0] + TCL_VERSION[2]
if feature.want('tcl'):
_dbg('Looking for TCL')
if _find_library_file(self, "tcl" + version):
feature.tcl = "tcl" + version
elif _find_library_file(self, "tcl" + TCL_VERSION):
feature.tcl = "tcl" + TCL_VERSION
if feature.want('tk'):
_dbg('Looking for TK')
if _find_library_file(self, "tk" + version):
feature.tk = "tk" + version
elif _find_library_file(self, "tk" + TCL_VERSION):
feature.tk = "tk" + TCL_VERSION
if feature.want('webp'):
_dbg('Looking for webp')
if (_find_include_file(self, "webp/encode.h") and
_find_include_file(self, "webp/decode.h")):
# In Google's precompiled zip it is call "libwebp":
@ -495,6 +549,7 @@ class pil_build_ext(build_ext):
feature.webp = "libwebp"
if feature.want('webpmux'):
_dbg('Looking for webpmux')
if (_find_include_file(self, "webp/mux.h") and
_find_include_file(self, "webp/demux.h")):
if (_find_library_file(self, "webpmux") and
@ -518,10 +573,10 @@ class pil_build_ext(build_ext):
# core library
files = ["_imaging.c"]
for file in _IMAGING:
files.append(file + ".c")
for file in _LIB_IMAGING:
files.append(os.path.join("libImaging", file + ".c"))
for src_file in _IMAGING:
files.append(src_file + ".c")
for src_file in _LIB_IMAGING:
files.append(os.path.join("libImaging", src_file + ".c"))
libs = []
defs = []
@ -557,7 +612,7 @@ class pil_build_ext(build_ext):
["_imagingft.c"],
libraries=["freetype"]))
if os.path.isfile("_imagingcms.c") and feature.lcms:
if feature.lcms:
extra = []
if sys.platform == "win32":
extra.extend(["user32", "gdi32"])
@ -565,7 +620,7 @@ class pil_build_ext(build_ext):
["_imagingcms.c"],
libraries=[feature.lcms] + extra))
if os.path.isfile("_webp.c") and feature.webp:
if feature.webp:
libs = [feature.webp]
defs = []
@ -586,16 +641,17 @@ class pil_build_ext(build_ext):
framework_roots = [
"/Library/Frameworks", "/System/Library/Frameworks"
]
_dbg('Looking for TclTk Framework Build')
for root in framework_roots:
root_tcl = os.path.join(root, "Tcl.framework")
root_tk = os.path.join(root, "Tk.framework")
if (os.path.exists(root_tcl) and os.path.exists(root_tk)):
print("--- using frameworks at %s" % root)
frameworks = ["-framework", "Tcl", "-framework", "Tk"]
dir = os.path.join(root_tcl, "Headers")
_add_directory(self.compiler.include_dirs, dir, 0)
dir = os.path.join(root_tk, "Headers")
_add_directory(self.compiler.include_dirs, dir, 1)
subdir = os.path.join(root_tcl, "Headers")
_add_directory(self.compiler.include_dirs, subdir, 0)
subdir = os.path.join(root_tk, "Headers")
_add_directory(self.compiler.include_dirs, subdir, 1)
break
if frameworks:
exts.append(Extension("PIL._imagingtk",
@ -607,11 +663,8 @@ class pil_build_ext(build_ext):
["_imagingtk.c", "Tk/tkImaging.c"],
libraries=[feature.tcl, feature.tk]))
if os.path.isfile("_imagingmath.c"):
exts.append(Extension("PIL._imagingmath", ["_imagingmath.c"]))
if os.path.isfile("_imagingmorph.c"):
exts.append(Extension("PIL._imagingmorph", ["_imagingmorph.c"]))
exts.append(Extension("PIL._imagingmath", ["_imagingmath.c"]))
exts.append(Extension("PIL._imagingmorph", ["_imagingmorph.c"]))
self.extensions[:] = exts
@ -680,8 +733,8 @@ class pil_build_ext(build_ext):
if not all:
print("To add a missing option, make sure you have the required")
print("library, and set the corresponding ROOT variable in the")
print("setup.py script.")
print("library and headers.")
print("See https://pillow.readthedocs.org/en/latest/installation.html#building-from-source")
print("")
print("To check the build, run the selftest.py script.")
@ -689,8 +742,8 @@ class pil_build_ext(build_ext):
def check_zlib_version(self, include_dirs):
# look for unsafe versions of zlib
for dir in include_dirs:
zlibfile = os.path.join(dir, "zlib.h")
for subdir in include_dirs:
zlibfile = os.path.join(subdir, "zlib.h")
if os.path.isfile(zlibfile):
break
else: