Merge pull request #255 from zllak/feature/python/install_data

python: customize the --install-data option for setup.py

lib/fpm/package/python.rb

@@ -47,6 +47,8 @@ class FPM::Package::Python < FPM::Package
     "Want to what your target platform is using? Run this: " \
     "python -c 'from distutils.sysconfig import get_python_lib; " \
     "print get_python_lib()'"
+  option "--install-data", "DATA_PATH", "The path to where data should be " \
+    "installed to."
 
   private
 
@@ -188,13 +190,16 @@ def install_to_staging(setup_py)
       @logger.info("Setting default :python_install_lib attribute",
                    :value => attributes[:python_install_lib])
     end
+    if attributes[:python_install_data].nil?
+      attributes[:python_install_data] = attributes[:python_install_lib]
+    end
     # Some setup.py's assume $PWD == current directory of setup.py, so let's
     # chdir first.
     ::Dir.chdir(project_dir) do
       safesystem(attributes[:python_bin], "setup.py", "install",
                  "--root", staging_path, 
                  "--install-lib", File.join(prefix, attributes[:python_install_lib]),
-                 "--install-data", File.join(prefix, attributes[:python_install_lib]),
+                 "--install-data", File.join(prefix, attributes[:python_install_data]),
                  "--install-scripts", File.join(prefix, attributes[:python_install_bin]))
     end
   end # def install_to_staging