path: root/Library/Formula/postgres-xc.rb

require 'formula'

class PostgresXc < Formula
  homepage 'http://postgres-xc.sourceforge.net/'
  url 'http://downloads.sourceforge.net/project/postgres-xc/Version_1.0/pgxc-v1.0.3.tar.gz'
  sha1 '76774cf32810dfa14b2174f2e939d3b28eb211a9'

  depends_on :arch => :x86_64
  depends_on :python => :recommended
  depends_on 'readline'
  depends_on 'libxml2' if MacOS.version <= :leopard # Leopard libxml is too old
  depends_on 'ossp-uuid' => :recommended

  conflicts_with 'postgresql',
    :because => 'postgres-xc and postgresql install the same binaries.'

  option 'no-perl', 'Build without Perl support'
  option 'enable-dtrace', 'Build with DTrace support'

  fails_with :clang do
    build 211
    cause 'Miscompilation resulting in segfault on queries'
  end

  # Fix PL/Python build: https://github.com/Homebrew/homebrew/issues/11162
  # Fix uuid-ossp build issues: http://archives.postgresql.org/pgsql-general/2012-07/msg00654.php
  def patches
    DATA
  end

  def install
    ENV.libxml2 if MacOS.version >= :snow_leopard

    # See http://sourceforge.net/mailarchive/forum.php?thread_name=82E44F89-543A-44F2-8AF8-F6909B5DC561%40uniud.it&forum_name=postgres-xc-bugs
    ENV.append 'CFLAGS', '-D_FORTIFY_SOURCE=0 -O2' if MacOS.version >= :mavericks

    args = ["--disable-debug",
            "--prefix=#{prefix}",
            "--datadir=#{share}/#{name}",
            "--docdir=#{doc}",
            "--enable-thread-safety",
            "--with-bonjour",
            "--with-gssapi",
            "--with-krb5",
            "--with-openssl",
            "--with-libxml",
            "--with-libxslt"]

    args << "--with-ossp-uuid" unless build.without? 'ossp-uuid'
    args << "--with-python" if build.with? 'python'
    args << "--with-perl" unless build.include? 'no-perl'
    args << "--enable-dtrace" if build.include? 'enable-dtrace'
    args << "ARCHFLAGS='-arch x86_64'"

    unless build.without? 'ossp-uuid'
      ENV.append 'CFLAGS', `uuid-config --cflags`.strip
      ENV.append 'LDFLAGS', `uuid-config --ldflags`.strip
      ENV.append 'LIBS', `uuid-config --libs`.strip
    end

    check_python_arch if build.with? 'python'

    system "./configure", *args
    system "make install-world"

    plist_path('gtm').write gtm_startup_plist('gtm')
    plist_path('gtm').chmod 0644
    plist_path('gtm_proxy').write gtm_proxy_startup_plist('gtm_proxy')
    plist_path('gtm_proxy').chmod 0644
    plist_path('coord').write coordinator_startup_plist('coord')
    plist_path('coord').chmod 0644
    plist_path('datanode').write datanode_startup_plist('datanode')
    plist_path('datanode').chmod 0644

    mkpath var+'postgres-xc' # Create data directory
  end

  def check_python_arch
    # On 64-bit systems, we need to avoid a 32-bit Framework Python.
    if python.framework?
      unless archs_for_command(python.binary).include? :x86_64
        opoo "Detected a framework Python that does not have 64-bit support in:"
        puts <<-EOS.undent
          #{python.prefix}

          The configure script seems to prefer this version of Python over any others,
          so you may experience linker problems as described in:
            http://osdir.com/ml/pgsql-general/2009-09/msg00160.html

          To fix this issue, you may need to either delete the version of Python
          shown above, or move it out of the way before brewing PostgreSQL.

          Note that a framework Python in /Library/Frameworks/Python.framework is
          the "MacPython" version, and not the system-provided version which is in:
            /System/Library/Frameworks/Python.framework
        EOS
      end
    end
  end

  def caveats; <<-EOS.undent
    To get started with Postgres-XC, read the documents at
      http://sourceforge.net/projects/postgres-xc/files/Publication/
      http://postgres-xc.sourceforge.net/docs/1_0/tutorial-start.html

    For a first cluster, you may start with a single GTM (Global Transaction Manager),
    a pair of Data Nodes and a single Coordinator, all on the same machine:

      initgtm -Z gtm -D #{var}/postgres-xc/gtm
      initdb -D #{var}/postgres-xc/datanode1 --nodename datanode1
      initdb -D #{var}/postgres-xc/datanode2 --nodename datanode2
      initdb -D #{var}/postgres-xc/coord --nodename coord

    Then edit:

      #{var}/postgres-xc/datanode1/postgresql.conf
      #{var}/postgres-xc/datanode2/postgresql.conf

    and change the port to 15432 and 15433, respectively.

    Then, launch the nodes and connect to the coordinator:

      gtm -D #{var}/postgres-xc/gtm -l #{var}/postgres-xc/gtm/server.log &
      postgres -i -X -D #{var}/postgres-xc/datanode1 -r #{var}/postgres-xc/datanode1/server.log &
      postgres -i -X -D #{var}/postgres-xc/datanode2 -r #{var}/postgres-xc/datanode2/server.log &
      postgres -i -C -D #{var}/postgres-xc/coord -r #{var}/postgres-xc/coord/server.log &
      psql postgres
        create node datanode1 with (type='datanode', port=15432);
        create node datanode2 with (type='datanode', port=15433);
        select * from pgxc_node;
        select pgxc_pool_reload();

    To shutdown everything, kill the processes in reverse order:

      kill -SIGTERM `head -1 #{var}/postgres-xc/coord/postmaster.pid`
      kill -SIGTERM `head -1 #{var}/postgres-xc/datanode1/postmaster.pid`
      kill -SIGTERM `head -1 #{var}/postgres-xc/datanode2/postmaster.pid`
      kill -SIGTERM `head -1 #{var}/postgres-xc/gtm/gtm.pid`

    If you get the following error:
      FATAL:  could not create shared memory segment: Cannot allocate memory
    then you need to tweak your system's shared memory parameters:
      http://www.postgresql.org/docs/current/static/kernel-resources.html#SYSVIPC
    EOS
  end

  # Override Formula#plist_name
  def plist_name(extra = nil)
    (extra) ? super()+'-'+extra : super()+'-gtm'
  end

  # Override Formula#plist_path
  def plist_path(extra = nil)
    (extra) ? super().dirname+(plist_name(extra)+'.plist') : super()
  end

  def gtm_startup_plist(name); <<-EOPLIST.undent
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
    <dict>
      <key>KeepAlive</key>
      <true/>
      <key>Label</key>
      <string>#{plist_name(name)}</string>
      <key>ProgramArguments</key>
      <array>
        <string>#{opt_prefix}/bin/gtm</string>
        <string>-D</string>
        <string>#{var}/postgres-xc/#{name}</string>
        <string>-l</string>
        <string>#{var}/postgres-xc/#{name}/server.log</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
      <key>WorkingDirectory</key>
      <string>#{HOMEBREW_PREFIX}</string>
      <key>StandardErrorPath</key>
      <string>#{var}/postgres-xc/#{name}/server.log</string>
    </dict>
    </plist>
    EOPLIST
  end

  def gtm_proxy_startup_plist(name); <<-EOPLIST.undent
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
    <dict>
      <key>KeepAlive</key>
      <true/>
      <key>Label</key>
      <string>#{plist_name(name)}</string>
      <key>ProgramArguments</key>
      <array>
        <string>#{opt_prefix}/bin/gtm_proxy</string>
        <string>-D</string>
        <string>#{var}/postgres-xc/#{name}</string>
        <string>-n</string>
        <string>2</string>
        <string>-s</string>
        <string>localhost</string>
        <string>-t</string>
        <string>6666</string>
        <string>-l</string>
        <string>#{var}/postgres-xc/#{name}/server.log</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
      <key>WorkingDirectory</key>
      <string>#{HOMEBREW_PREFIX}</string>
      <key>StandardErrorPath</key>
      <string>#{var}/postgres-xc/#{name}/server.log</string>
    </dict>
    </plist>
    EOPLIST
  end

  def coordinator_startup_plist(name); <<-EOPLIST.undent
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
    <dict>
      <key>KeepAlive</key>
      <true/>
      <key>Label</key>
      <string>#{plist_name(name)}</string>
      <key>ProgramArguments</key>
      <array>
        <string>#{opt_prefix}/bin/postgres</string>
        <string>-i</string>
        <string>-C</string>
        <string>-D</string>
        <string>#{var}/postgres-xc/#{name}</string>
        <string>-r</string>
        <string>#{var}/postgres-xc/#{name}/server.log</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
      <key>WorkingDirectory</key>
      <string>#{HOMEBREW_PREFIX}</string>
      <key>StandardErrorPath</key>
      <string>#{var}/postgres-xc/#{name}/server.log</string>
    </dict>
    </plist>
    EOPLIST
  end

  def datanode_startup_plist(name); <<-EOPLIST.undent
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
    <dict>
      <key>KeepAlive</key>
      <true/>
      <key>Label</key>
      <string>#{plist_name(name)}</string>
      <key>ProgramArguments</key>
      <array>
        <string>#{opt_prefix}/bin/postgres</string>
        <string>-i</string>
        <string>-X</string>
        <string>-D</string>
        <string>#{var}/postgres-xc/#{name}</string>
        <string>-r</string>
        <string>#{var}/postgres-xc/#{name}/server.log</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
      <key>WorkingDirectory</key>
      <string>#{HOMEBREW_PREFIX}</string>
      <key>StandardErrorPath</key>
      <string>#{var}/postgres-xc/#{name}/server.log</string>
    </dict>
    </plist>
    EOPLIST
  end

end


__END__
--- a/src/pl/plpython/Makefile	2011-09-23 08:03:52.000000000 +1000
+++ b/src/pl/plpython/Makefile	2011-10-26 21:43:40.000000000 +1100
@@ -24,8 +24,6 @@
 # Darwin (OS X) has its own ideas about how to do this.
 ifeq ($(PORTNAME), darwin)
 shared_libpython = yes
-override python_libspec = -framework Python
-override python_additional_libs =
 endif

 # If we don't have a shared library and the platform doesn't allow it
--- a/contrib/uuid-ossp/uuid-ossp.c	2012-07-30 18:34:53.000000000 -0700
+++ b/contrib/uuid-ossp/uuid-ossp.c	2012-07-30 18:35:03.000000000 -0700
@@ -9,6 +9,8 @@
  *-------------------------------------------------------------------------
  */

+#define _XOPEN_SOURCE
+
 #include "postgres.h"
 #include "fmgr.h"
 #include "utils/builtins.h"