# %%gem_unpack macro unpacks a gem file into %%{_builddir}
#
# example:
#   %prep
#   %gem_unpack %{SOURCE0}
#   %patch1 -p1
#
%gem_unpack(s:) \
  source=%{-s:%{-s*}}%{!-s:%{SOURCE0}} \
  %{?gem_binary}%{!?gem_binary:/usr/bin/gem} unpack --verbose $source \
  cd %{mod_name}-%{version} \
  chmod og-w -R . \
  %{?gem_binary}%{!?gem_binary:/usr/bin/gem} specification --ruby $source > %{mod_name}-%{version}.gemspec \
%{nil}

# %%gem_build macro ...
#
%gem_build() \
GEMSPEC_SOURCE_DIR=`find . -maxdepth 2 -type f -name %{mod_name}-%{version}.gemspec | xargs dirname` \
cd $GEMSPEC_SOURCE_DIR && %{?gem_binary}%{!?gem_binary:/usr/bin/gem} build --verbose %{mod_name}-%{version}.gemspec \
%{nil}

# %%gem_install macro ...
#
# When invoked with a single parameter, the macro retains the old macro behavior, i.e.
# building the upstream gem directly in $RPM_BUILD_ROOT without unpacking to %{_builddir} first.
#
%gem_install /usr/lib/rpm/gem_install.sh --default-gem %{mod_name}-%{version}.gem --build-root %{buildroot} %{?gem_binary:--gem-binary %{gem_binary}}

# we need to copy parts of the %fdupes macro as rpm can't expand parameters in macro "calls" ;(
%gem_cleanup() \
/usr/lib/rpm/gem_build_cleanup.sh %{buildroot}%{_libdir}/ruby/gems/%{rb_ver}/ \
fdupes -q -p -n -r %{buildroot}%{gem_base} | \
  while read _file; do \
    if test -z "$_target" ; then \
      _target="$_file"; \
    else \
      if test -z "$_file" ; then \
        _target=""; \
        continue ; \
      fi ; \
      ln -sf "${_target#%{buildroot}}" "$_file"; \
    fi ; \
 done \
%{nil}

# this is used in older gems - but it's pointless with newer ruby/rpm versions
%rubygems_requires %{nil}

%gem_base %(%{rb_binary} -rrubygems -e 'print Gem::Specification.new.base_dir' )
%gem_extensions %(%{rb_binary} -rrubygems -e 'print Gem::Specification.new.extensions_dir' || echo %{_libdir}/ruby/gems/%{rb_ver}/gems )
%gem_doc_ext %(%{rb_binary} -r rubygems -e 'bs = Gem::Specification.new; rp = bs.extensions_dir.rpartition(bs.base_dir); print rp[1]+"/doc"+rp[2]' )
%gem_platform %(%{rb_binary} -r rubygems -r rbconfig -e 'print Gem::Platform.new(RbConfig::CONFIG["arch"]).to_s' )