diff options
author | Ilya Kulakov <kulakov.ilya@gmail.com> | 2013-01-09 17:41:02 +0400 |
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committer | Ilya Kulakov <kulakov.ilya@gmail.com> | 2013-01-09 17:41:02 +0400 |
commit | 22c63a2c89a6fb7e97def7e88c98244007d21af3 (patch) | |
tree | 9ceb2168ce9311c03e1af7dd893d773bf599f7b7 /scripts | |
parent | 08835dde009425e7f1b19211b937e59ae92430b4 (diff) |
Add formula to create appropriate python build.
Diffstat (limited to 'scripts')
-rw-r--r-- | scripts/darwin/python.rb | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/scripts/darwin/python.rb b/scripts/darwin/python.rb new file mode 100644 index 0000000000..bef3bb66f5 --- /dev/null +++ b/scripts/darwin/python.rb @@ -0,0 +1,273 @@ +require 'formula' + +class TkCheck < Requirement + def message; <<-EOS.undent + Tk.framework was detected in /Library/Frameworks + This can cause Python builds to fail. See: + https://github.com/mxcl/homebrew/issues/11602 + EOS + end + + def fatal?; false; end + + def satisfied? + not File.exist? '/Library/Frameworks/Tk.framework' + end +end + +class Distribute < Formula + url 'http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz' + sha1 '709bd97d46050d69865d4b588c7707768dfe6711' +end + +class Pip < Formula + url 'http://pypi.python.org/packages/source/p/pip/pip-1.2.1.tar.gz' + sha1 '35db84983ef3f66a8a161d320e61d192afc233d9' +end + +class Python < Formula + homepage 'http://www.python.org' + url 'http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2' + sha1 '842c4e2aff3f016feea3c6e992c7fa96e49c9aa0' + + depends_on TkCheck.new + depends_on 'pkg-config' => :build + depends_on 'readline' => :recommended + depends_on 'sqlite' => :recommended + depends_on 'gdbm' => :recommended + depends_on 'openssl' if build.include? 'with-brewed-openssl' + + option :universal + option 'quicktest', 'Run `make quicktest` after the build' + option 'with-brewed-openssl', "Use Homebrew's openSSL instead of the one from OS X" + option 'with-poll', 'Enable select.poll, which is not fully implemented on OS X (http://bugs.python.org/issue5154)' + + # --with-dtrace relies on CLT as dtrace hard-codes paths to /usr + # http://bugs.python.org/issue13405 + option 'with-dtrace', 'Install with DTrace support' if MacOS::CLT.installed? + + def patches + 'https://raw.github.com/gist/3415636/2365dea8dc5415daa0148e98c394345e1191e4aa/pythondtrace-patch.diff' + end if build.include? 'with-dtrace' + + def site_packages_cellar + prefix/"Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages" + end + + # The HOMEBREW_PREFIX location of site-packages. + def site_packages + HOMEBREW_PREFIX/"lib/python2.7/site-packages" + end + + # Where distribute/pip will install executable scripts. + def scripts_folder + HOMEBREW_PREFIX/"share/python" + end + + def install + opoo 'The given option --with-poll enables a somewhat broken poll() on OS X (http://bugs.python.org/issue5154).' if build.include? 'with-poll' + + # Unset these so that installing pip and distribute puts them where we want + # and not into some other Python the user has installed. + ENV['PYTHONPATH'] = nil + ENV['PYTHONHOME'] = nil + + args = %W[ + --prefix=#{prefix} + --enable-ipv6 + --datarootdir=#{share} + --datadir=#{share} + --enable-framework=#{prefix}/Frameworks + MACOSX_DEPLOYMENT_TARGET=10.6 + ] + + args << '--without-gcc' if ENV.compiler == :clang + args << '--with-dtrace' if build.include? 'with-dtrace' + + distutils_fix_superenv(args) + distutils_fix_stdenv + + if build.universal? + ENV.universal_binary + args << "--enable-universalsdk=/" << "--with-universal-archs=intel" + end + + # Allow sqlite3 module to load extensions: http://docs.python.org/library/sqlite3.html#f1 + inreplace "setup.py", 'sqlite_defines.append(("SQLITE_OMIT_LOAD_EXTENSION", "1"))', '' + + system "./configure", *args + + # HAVE_POLL is "broken" on OS X + # See: http://trac.macports.org/ticket/18376 and http://bugs.python.org/issue5154 + inreplace 'pyconfig.h', /.*?(HAVE_POLL[_A-Z]*).*/, '#undef \1' unless build.include? "with-poll" + + system "make" + + ENV.deparallelize # Installs must be serialized + # Tell Python not to install into /Applications (default for framework builds) + system "make", "install", "PYTHONAPPSDIR=#{prefix}" + # Demos and Tools + (HOMEBREW_PREFIX/'share/python').mkpath + system "make", "frameworkinstallextras", "PYTHONAPPSDIR=#{share}/python" + system "make", "quicktest" if build.include? 'quicktest' + + # Post-install, fix up the site-packages and install-scripts folders + # so that user-installed Python software survives minor updates, such + # as going from 2.7.0 to 2.7.1: + + # Remove the site-packages that Python created in its Cellar. + site_packages_cellar.rmtree + # Create a site-packages in HOMEBREW_PREFIX/lib/python/site-packages + site_packages.mkpath + # Symlink the prefix site-packages into the cellar. + ln_s site_packages, site_packages_cellar + + # Teach python not to use things from /System + # and tell it about the correct site-package dir because we moved it + sitecustomize = site_packages_cellar/"sitecustomize.py" + rm sitecustomize if File.exist? sitecustomize + sitecustomize.write <<-EOF.undent + # This file is created by `brew install python` and is executed on each + # python startup. Don't print from here, or else universe will collapse. + import sys + import site + + # Only do fix 1 and 2, if the currently run python is a brewed one. + if sys.executable.startswith('#{HOMEBREW_PREFIX}'): + # Fix 1) + # A setuptools.pth and/or easy-install.pth sitting either in + # /Library/Python/2.7/site-packages or in + # ~/Library/Python/2.7/site-packages can inject the + # /System's Python site-packages. People then report + # "OSError: [Errno 13] Permission denied" because pip/easy_install + # attempts to install into + # /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python + # See: https://github.com/mxcl/homebrew/issues/14712 + sys.path = [ p for p in sys.path if not p.startswith('/System') ] + + # Fix 2) + # Remove brewed Python's hard-coded site-packages + sys.path.remove('#{site_packages_cellar}') + + # Fix 3) + # For all Pythons: Tell about homebrew's site-packages location. + # This is needed for Python to parse *.pth files. + site.addsitedir('#{site_packages}') + EOF + + # Install distribute and pip + # It's important to have these installers in our bin, because some users + # forget to put #{script_folder} in PATH, then easy_install'ing + # into /Library/Python/X.Y/site-packages with /usr/bin/easy_install. + mkdir_p scripts_folder unless scripts_folder.exist? + setup_args = ["-s", "setup.py", "--no-user-cfg", "install", "--force", "--verbose", "--install-lib=#{site_packages_cellar}", "--install-scripts=#{bin}" ] + Distribute.new.brew { system "#{bin}/python", *setup_args } + Pip.new.brew { system "#{bin}/python", *setup_args } + + # Tell distutils-based installers where to put scripts and python modules + (prefix/"Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/distutils.cfg").write <<-EOF.undent + [install] + install-scripts=#{scripts_folder} + install-lib=#{site_packages} + EOF + + unless MacOS::CLT.installed? + makefile = prefix/'Frameworks/Python.framework/Versions/2.7/lib/python2.7/config/Makefile' + inreplace makefile do |s| + s.gsub!(/^CC=.*$/, "CC=xcrun clang") + s.gsub!(/^CXX=.*$/, "CXX=xcrun clang++") + s.gsub!(/^AR=.*$/, "AR=xcrun ar") + s.gsub!(/^RANLIB=.*$/, "RANLIB=xcrun ranlib") + end + end + + end + + def distutils_fix_superenv(args) + if superenv? + # To allow certain Python bindings to find brewed software: + cflags = "CFLAGS=-I#{HOMEBREW_PREFIX}/include" + ldflags = "LDFLAGS=-L#{HOMEBREW_PREFIX}/lib" + unless MacOS::CLT.installed? + # Help Python's build system (distribute/pip) to build things on Xcode-only systems + # The setup.py looks at "-isysroot" to get the sysroot (and not at --sysroot) + cflags += " -isysroot #{MacOS.sdk_path}" + # For the Xlib.h, Python needs this header dir + cflags += " -I#{MacOS.sdk_path}/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers" + ldflags += " -isysroot #{MacOS.sdk_path}" + # Same zlib.h-not-found-bug as in env :std (see below) + args << "CPPFLAGS=-I#{MacOS.sdk_path}/usr/include" + end + args << cflags + args << ldflags + # Avoid linking to libgcc http://code.activestate.com/lists/python-dev/112195/ + # We want our readline! This is just to outsmart the detection code, + # superenv handles that cc finds includes/libs! + inreplace "setup.py", + "do_readline = self.compiler.find_library_file(lib_dirs, 'readline')", + "do_readline = '#{HOMEBREW_PREFIX}/opt/readline/lib/libhistory.dylib'" + end + end + + def distutils_fix_stdenv() + if not superenv? + # Python scans all "-I" dirs but not "-isysroot", so we add + # the needed includes with "-I" here to avoid this err: + # building dbm using ndbm + # error: /usr/include/zlib.h: No such file or directory + ENV.append 'CPPFLAGS', "-I#{MacOS.sdk_path}/usr/include" unless MacOS::CLT.installed? + + # Don't use optimizations other than "-Os" here, because Python's distutils + # remembers (hint: `python3-config --cflags`) and reuses them for C + # extensions which can break software (such as scipy 0.11 fails when + # "-msse4" is present.) + ENV.minimal_optimization + + # We need to enable warnings because the configure.in uses -Werror to detect + # "whether gcc supports ParseTuple" (https://github.com/mxcl/homebrew/issues/12194) + ENV.enable_warnings + if ENV.compiler == :clang + # http://docs.python.org/devguide/setup.html#id8 suggests to disable some Warnings. + ENV.append_to_cflags '-Wno-unused-value' + ENV.append_to_cflags '-Wno-empty-body' + ENV.append_to_cflags '-Qunused-arguments' + end + end + end + + def caveats + <<-EOS.undent + Homebrew's Python framework + #{prefix}/Frameworks/Python.framework + + Python demo + #{HOMEBREW_PREFIX}/share/python/Extras + + Distribute and Pip have been installed. To update them + pip install --upgrade distribute + pip install --upgrade pip + + To symlink "Idle" and the "Python Launcher" to ~/Applications + `brew linkapps` + + You can install Python packages with (the outdated easy_install or) + `pip install <your_favorite_package>` + + They will install into the site-package directory + #{site_packages} + Executable python scripts will be put in: + #{scripts_folder} + so you may want to put "#{scripts_folder}" in your PATH, too. + + See: https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python + EOS + end + + def test + # Check if sqlite is ok, because we build with --enable-loadable-sqlite-extensions + # and it can occur that building sqlite silently fails if OSX's sqlite is used. + system "#{bin}/python", "-c", "import sqlite3" + # Check if some other modules import. Then the linked libs are working. + system "#{bin}/python", "-c", "import Tkinter" + end +end |