homebrew-core/Formula/cvs2svn.rb
Samuel John f6e80bdea2 Python 2.x and 3.x support
New `depends_on :python` Dependency.
New `depends_on :python3` Dependency.

To avoid having multiple formulae with endings -py2 and -py3,
we will handle support for different pythons (2.x vs. 3.x)
in the same formula.
Further brewed vs. external python will be transparently supported.

The formula also gets a new object `python`, which is false if
no Python is available or the user has disabled it. Otherwise
it is defined and provides several support methods:

python.site_packages # the site-packages in the formula's Cellar
python.global_site_packages
python.binary # the full path to the python binary
python.prefix
python.version
python.version.major
python.version.minor
python.xy # => e.g. "python2.7"
python.incdir # includes of python
python.libdir # the python dylib library
python.pkg_config_path # used internally by brew
python.from_osx?
python.framework?
python.universal?
python.pypy?
python.standard_caveats # Text to set PYTHONPATH for python.from_osx?
python.if3then3 # => "" for 2.x and to "3" for 3.x.

Further, to avoid code duplication, `python` takes an optional
block that is run twice if the formula defines depends_on
:python AND :python3.

python do
  system python, 'setup.py', "--prefix=#{prefix}"
end

Read more in the Homebrew wiki.
2013-06-03 17:29:43 +02:00

50 lines
1.4 KiB
Ruby

require 'formula'
class PythonWithGdbm < Requirement
fatal true
satisfy(:build_env => false) { quiet_system "python", "-c", "import gdbm" }
def message; <<-EOS.undent
The Python being used does not include gdbm support,
but it is required to build this formula:
#{which 'python'}
Homebrew's Python includes gdbm support.
EOS
end
end
class Cvs2svn < Formula
homepage 'http://cvs2svn.tigris.org/'
url 'http://trac.macports.org/export/70472/distfiles/cvs2svn/cvs2svn-2.3.0.tar.gz'
sha1 '545237805ddb241054ba40b105b9c29b705539b8'
depends_on :python
depends_on PythonWithGdbm
def install
python do
system python, "setup.py", "install", "--prefix=#{prefix}"
system "make man"
man1.install gzip('cvs2svn.1', 'cvs2git.1', 'cvs2bzr.1')
prefix.install %w[ BUGS COMMITTERS HACKING
cvs2bzr-example.options
cvs2git-example.options
cvs2hg-example.options
cvs2svn-example.options contrib ]
end
doc.install Dir['{doc,www}/*']
end
def caveats; <<-EOS.undent
NOTE: man pages have been installed, but for better documentation see:
#{HOMEBREW_PREFIX}/share/doc/cvs2svn/cvs2svn.html
or http://cvs2svn.tigris.org/cvs2svn.html.
Contrib scripts and example options files are installed in:
#{opt_prefix}
EOS
end
end