273 lines
11 KiB
Ruby
273 lines
11 KiB
Ruby
require 'formula'
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class TkCheck < Requirement
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def message; <<-EOS.undent
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Tk.framework was detected in /Library/Frameworks
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This can cause Python builds to fail. See:
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https://github.com/mxcl/homebrew/issues/11602
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EOS
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end
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def fatal?; false; end
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def satisfied?
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not File.exist? '/Library/Frameworks/Tk.framework'
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end
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end
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class Distribute < Formula
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url 'http://pypi.python.org/packages/source/d/distribute/distribute-0.6.32.tar.gz'
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sha1 '65ae88517ac47bd4e0fb449b3b9a9bf85e8366c8'
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end
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class Pip < Formula
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url 'http://pypi.python.org/packages/source/p/pip/pip-1.2.1.tar.gz'
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sha1 '35db84983ef3f66a8a161d320e61d192afc233d9'
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end
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class Python < Formula
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homepage 'http://www.python.org'
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url 'http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2'
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sha1 '842c4e2aff3f016feea3c6e992c7fa96e49c9aa0'
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depends_on TkCheck.new
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depends_on 'pkg-config' => :build
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depends_on 'readline' => :recommended
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depends_on 'sqlite' => :recommended
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depends_on 'gdbm' => :recommended
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depends_on 'openssl' if build.include? 'with-brewed-openssl'
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option :universal
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option 'quicktest', 'Run `make quicktest` after the build'
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option 'with-brewed-openssl', "Use Homebrew's openSSL instead of the one from OS X"
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option 'with-poll', 'Enable select.poll, which is not fully implemented on OS X (http://bugs.python.org/issue5154)'
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# --with-dtrace relies on CLT as dtrace hard-codes paths to /usr
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# http://bugs.python.org/issue13405
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option 'with-dtrace', 'Install with DTrace support' if MacOS::CLT.installed?
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def patches
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'https://raw.github.com/gist/3415636/2365dea8dc5415daa0148e98c394345e1191e4aa/pythondtrace-patch.diff'
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end if build.include? 'with-dtrace'
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def site_packages_cellar
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prefix/"Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages"
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end
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# The HOMEBREW_PREFIX location of site-packages.
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def site_packages
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HOMEBREW_PREFIX/"lib/python2.7/site-packages"
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end
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# Where distribute/pip will install executable scripts.
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def scripts_folder
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HOMEBREW_PREFIX/"share/python"
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end
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def install
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opoo 'The given option --with-poll enables a somewhat broken poll() on OS X (http://bugs.python.org/issue5154).' if build.include? 'with-poll'
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# Unset these so that installing pip and distribute puts them where we want
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# and not into some other Python the user has installed.
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ENV['PYTHONPATH'] = nil
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ENV['PYTHONHOME'] = nil
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args = %W[
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--prefix=#{prefix}
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--enable-ipv6
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--datarootdir=#{share}
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--datadir=#{share}
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--enable-framework=#{prefix}/Frameworks
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]
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args << '--without-gcc' if ENV.compiler == :clang
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args << '--with-dtrace' if build.include? 'with-dtrace'
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distutils_fix_superenv(args)
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distutils_fix_stdenv
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if build.universal?
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ENV.universal_binary
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args << "--enable-universalsdk=/" << "--with-universal-archs=intel"
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end
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# Allow sqlite3 module to load extensions: http://docs.python.org/library/sqlite3.html#f1
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inreplace "setup.py", 'sqlite_defines.append(("SQLITE_OMIT_LOAD_EXTENSION", "1"))', ''
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system "./configure", *args
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# HAVE_POLL is "broken" on OS X
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# See: http://trac.macports.org/ticket/18376 and http://bugs.python.org/issue5154
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inreplace 'pyconfig.h', /.*?(HAVE_POLL[_A-Z]*).*/, '#undef \1' unless build.include? "with-poll"
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system "make"
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ENV.deparallelize # Installs must be serialized
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# Tell Python not to install into /Applications (default for framework builds)
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system "make", "install", "PYTHONAPPSDIR=#{prefix}"
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# Demos and Tools
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(HOMEBREW_PREFIX/'share/python').mkpath
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system "make", "frameworkinstallextras", "PYTHONAPPSDIR=#{share}/python"
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system "make", "quicktest" if build.include? 'quicktest'
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# Post-install, fix up the site-packages and install-scripts folders
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# so that user-installed Python software survives minor updates, such
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# as going from 2.7.0 to 2.7.1:
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# Remove the site-packages that Python created in its Cellar.
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site_packages_cellar.rmtree
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# Create a site-packages in HOMEBREW_PREFIX/lib/python/site-packages
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site_packages.mkpath
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# Symlink the prefix site-packages into the cellar.
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ln_s site_packages, site_packages_cellar
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# Teach python not to use things from /System
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# and tell it about the correct site-package dir because we moved it
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sitecustomize = site_packages_cellar/"sitecustomize.py"
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rm sitecustomize if File.exist? sitecustomize
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sitecustomize.write <<-EOF.undent
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# This file is created by `brew install python` and is executed on each
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# python startup. Don't print from here, or else universe will collapse.
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import sys
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import site
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# Only do fix 1 and 2, if the currently run python is a brewed one.
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if sys.executable.startswith('#{HOMEBREW_PREFIX}'):
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# Fix 1)
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# A setuptools.pth and/or easy-install.pth sitting either in
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# /Library/Python/2.7/site-packages or in
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# ~/Library/Python/2.7/site-packages can inject the
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# /System's Python site-packages. People then report
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# "OSError: [Errno 13] Permission denied" because pip/easy_install
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# attempts to install into
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# /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python
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# See: https://github.com/mxcl/homebrew/issues/14712
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sys.path = [ p for p in sys.path if not p.startswith('/System') ]
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# Fix 2)
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# Remove brewed Python's hard-coded site-packages
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sys.path.remove('#{site_packages_cellar}')
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# Fix 3)
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# For all Pythons: Tell about homebrew's site-packages location.
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# This is needed for Python to parse *.pth files.
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site.addsitedir('#{site_packages}')
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EOF
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# Install distribute and pip
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# It's important to have these installers in our bin, because some users
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# forget to put #{script_folder} in PATH, then easy_install'ing
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# into /Library/Python/X.Y/site-packages with /usr/bin/easy_install.
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mkdir_p scripts_folder unless scripts_folder.exist?
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setup_args = ["-s", "setup.py", "--no-user-cfg", "install", "--force", "--verbose", "--install-lib=#{site_packages_cellar}", "--install-scripts=#{bin}" ]
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Distribute.new.brew { system "#{bin}/python", *setup_args }
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Pip.new.brew { system "#{bin}/python", *setup_args }
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# Tell distutils-based installers where to put scripts and python modules
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(prefix/"Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/distutils.cfg").write <<-EOF.undent
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[install]
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install-scripts=#{scripts_folder}
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install-lib=#{site_packages}
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EOF
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unless MacOS::CLT.installed?
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makefile = prefix/'Frameworks/Python.framework/Versions/2.7/lib/python2.7/config/Makefile'
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inreplace makefile do |s|
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s.gsub!(/^CC=.*$/, "CC=xcrun clang")
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s.gsub!(/^CXX=.*$/, "CXX=xcrun clang++")
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s.gsub!(/^AR=.*$/, "AR=xcrun ar")
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s.gsub!(/^RANLIB=.*$/, "RANLIB=xcrun ranlib")
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end
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end
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end
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def distutils_fix_superenv(args)
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if superenv?
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# To allow certain Python bindings to find brewed software:
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cflags = "CFLAGS=-I#{HOMEBREW_PREFIX}/include"
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ldflags = "LDFLAGS=-L#{HOMEBREW_PREFIX}/lib"
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unless MacOS::CLT.installed?
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# Help Python's build system (distribute/pip) to build things on Xcode-only systems
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# The setup.py looks at "-isysroot" to get the sysroot (and not at --sysroot)
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cflags += " -isysroot #{MacOS.sdk_path}"
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# For the Xlib.h, Python needs this header dir
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cflags += " -I#{MacOS.sdk_path}/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers"
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ldflags += " -isysroot #{MacOS.sdk_path}"
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# Same zlib.h-not-found-bug as in env :std (see below)
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args << "CPPFLAGS=-I#{MacOS.sdk_path}/usr/include"
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end
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args << cflags
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args << ldflags
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# Avoid linking to libgcc http://code.activestate.com/lists/python-dev/112195/
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args << "MACOSX_DEPLOYMENT_TARGET=#{MacOS.version}"
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# We want our readline! This is just to outsmart the detection code,
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# superenv handles that cc finds includes/libs!
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inreplace "setup.py",
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"do_readline = self.compiler.find_library_file(lib_dirs, 'readline')",
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"do_readline = '#{HOMEBREW_PREFIX}/opt/readline/lib/libhistory.dylib'"
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end
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end
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def distutils_fix_stdenv()
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if not superenv?
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# Python scans all "-I" dirs but not "-isysroot", so we add
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# the needed includes with "-I" here to avoid this err:
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# building dbm using ndbm
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# error: /usr/include/zlib.h: No such file or directory
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ENV.append 'CPPFLAGS', "-I#{MacOS.sdk_path}/usr/include" unless MacOS::CLT.installed?
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# Don't use optimizations other than "-Os" here, because Python's distutils
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# remembers (hint: `python3-config --cflags`) and reuses them for C
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# extensions which can break software (such as scipy 0.11 fails when
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# "-msse4" is present.)
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ENV.minimal_optimization
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# We need to enable warnings because the configure.in uses -Werror to detect
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# "whether gcc supports ParseTuple" (https://github.com/mxcl/homebrew/issues/12194)
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ENV.enable_warnings
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if ENV.compiler == :clang
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# http://docs.python.org/devguide/setup.html#id8 suggests to disable some Warnings.
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ENV.append_to_cflags '-Wno-unused-value'
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ENV.append_to_cflags '-Wno-empty-body'
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ENV.append_to_cflags '-Qunused-arguments'
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end
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end
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end
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def caveats
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<<-EOS.undent
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Homebrew's Python framework
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#{prefix}/Frameworks/Python.framework
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Python demo
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#{HOMEBREW_PREFIX}/share/python/Extras
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Distribute and Pip have been installed. To update them
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pip install --upgrade distribute
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pip install --upgrade pip
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To symlink "Idle" and the "Python Launcher" to ~/Applications
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`brew linkapps`
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You can install Python packages with (the outdated easy_install or)
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`pip install <your_favorite_package>`
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They will install into the site-package directory
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#{site_packages}
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Executable python scripts will be put in:
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#{scripts_folder}
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so you may want to put "#{scripts_folder}" in your PATH, too.
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See: https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python
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EOS
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end
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def test
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# Check if sqlite is ok, because we build with --enable-loadable-sqlite-extensions
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# and it can occur that building sqlite silently fails if OSX's sqlite is used.
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system "#{bin}/python", "-c", "import sqlite3"
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# Check if some other modules import. Then the linked libs are working.
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system "#{bin}/python", "-c", "import Tkinter"
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end
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end
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