rpm 5.4.15

Change from using berkeley-db 5.3 to 6.1 (the default version).
Everything else now uses the internal versions (where available),
to avoid external dependencies: beecrypt, neon, pcre, lua, syck.

The internal file and popt are currently missing or broken, so
they cannot be used. The mandatory libtasn1 and uuid are not
available as internal yet, so they also be have to be external.

Also make sure to set the right macros, for prefix / rpmbuild.
The rpm installation should go into prefix (in HOMEBREW_CELLAR),
while any rpms built by rpmbuild should go into HOMEBREW_PREFIX.

Disable the use of scriptlet depends, needs bash --rpm-requires.
This means that scripts won't automatically pick up executables.

Test rpm by quering the rpmdb (var/lib/rpm/Packages), creating
the database - if one doesn't exist already. Include a trivial
test package for testing rpmbuild functionality, creating rpms.
(will build under "var/lib/rpmbuild", if nothing else is set)

To use another top directory, set it in ~/.rpmmacros:
%_topdir        %(echo $HOME)/rpmbuild

Closes: Homebrew/homebrew#35062.

Closes Homebrew/homebrew#39054.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Formula/rpm.rb

@@ -15,30 +15,29 @@ end
 
 class Rpm < Formula
   homepage 'http://www.rpm5.org/'
-  url 'http://rpm5.org/files/rpm/rpm-5.4/rpm-5.4.14-0.20131024.src.rpm',
+  url 'http://rpm5.org/files/rpm/rpm-5.4/rpm-5.4.15-0.20140824.src.rpm',
       :using => RpmDownloadStrategy
-  version '5.4.14'
-  sha1 'ea1a5f073ba4923d32f98b4e95a3f2555824f22c'
+  version '5.4.15'
+  sha1 '5e94f4679759c36ce76a4847401b22b660a97227'
 
   depends_on 'berkeley-db'
   depends_on 'libmagic'
   depends_on 'popt'
-  depends_on 'beecrypt'
   depends_on 'libtasn1'
-  depends_on 'neon'
   depends_on 'gettext'
   depends_on 'xz'
   depends_on 'ossp-uuid'
-  depends_on 'pcre'
   depends_on 'rpm2cpio' => :build
 
   def install
+    # only rpm should go into HOMEBREW_CELLAR, not rpms built
+    inreplace "macros/macros.in", '@prefix@', HOMEBREW_PREFIX
     args = %W[
         --prefix=#{prefix}
         --localstatedir=#{var}
         --with-path-cfg=#{etc}/rpm
         --with-path-magic=#{HOMEBREW_PREFIX}/share/misc/magic
-        --with-extra-path-macros=#{lib}/rpm/macros.*
+        --with-path-sources=#{HOMEBREW_PREFIX}/var/lib/rpmbuild
         --with-libiconv-prefix=/usr
         --disable-openmp
         --disable-nls
@@ -47,23 +46,65 @@ class Rpm < Formula
         --with-sqlite=external
         --with-file=external
         --with-popt=external
-        --with-beecrypt=external
+        --with-beecrypt=internal
         --with-libtasn1=external
-        --with-neon=external
+        --with-neon=internal
         --with-uuid=external
-        --with-pcre=external
+        --with-pcre=internal
         --with-lua=internal
         --with-syck=internal
         --without-apidocs
         varprefix=#{var}
     ]
 
-    inreplace "configure", "db-6.0", "db-5.3"
-    inreplace "configure", "db_sql-6.0", "db_sql-5.3"
     system "./configure", *args
     inreplace "Makefile", "--tag=CC", "--tag=CXX"
     inreplace "Makefile", "--mode=link $(CCLD)", "--mode=link $(CXX)"
     system "make"
+    # enable rpmbuild macros, for building *.rpm packages
+    inreplace "macros/macros", "#%%{load:%{_usrlibrpm}/macros.rpmbuild}", "%{load:%{_usrlibrpm}/macros.rpmbuild}"
+    # using __scriptlet_requires needs bash --rpm-requires
+    inreplace "macros/macros.rpmbuild", "%_use_internal_dependency_generator\t2", "%_use_internal_dependency_generator\t1"
     system "make install"
   end
+
+  def spec
+    <<-EOS.undent
+      Summary:   Test package
+      Name:      test
+      Version:   1.0
+      Release:   1
+      License:   Public Domain
+      Group:     Development/Tools
+      BuildArch: noarch
+
+      %description
+      Trivial test package
+
+      %prep
+      %build
+      %install
+      mkdir -p $RPM_BUILD_ROOT/tmp
+      touch $RPM_BUILD_ROOT/tmp/test
+
+      %files
+      /tmp/test
+
+      %changelog
+
+    EOS
+  end
+
+  def rpmdir macro
+    return Pathname.new(`#{bin}/rpm --eval #{macro}`.chomp)
+  end
+
+  test do
+    system "#{bin}/rpm", "-vv", "-qa"
+    rpmdir('%_builddir').mkpath
+    specfile = rpmdir('%_specdir')+'test.spec'
+    specfile.unlink if specfile.exist?
+    (specfile).write(spec)
+    system "#{bin}/rpmbuild", "-ba", specfile
+  end
 end