class Postgresql < Formula
  desc "Object-relational database system"
  homepage "https://www.postgresql.org/"

  stable do
    url "https://ftp.postgresql.org/pub/source/v9.4.4/postgresql-9.4.4.tar.bz2"
    sha256 "538ed99688d6fdbec6fd166d1779cf4588bf2f16c52304e5ef29f904c43b0013"
  end

  devel do
    url "https://ftp.postgresql.org/pub/source/v9.5alpha2/postgresql-9.5alpha2.tar.bz2"
    sha256 "87a55f39fb465ffe47701251665d3bff431760d9941f884be7f5ff67435ba485"
    version "9.5alpha2"
  end

  bottle do
    sha256 "c300df1c732b749654f507498ae77531842dbb3bebc1083fe05cb191e5ee6bb3" => :el_capitan
    sha256 "25c2e16deaf18141e48f7b567ef02f8c426cc4978a41e1ee0f7f2484d8ddf2c9" => :yosemite
    sha256 "553b8e7f01b436a9152a737f66addbd7062bb90dc711e1e50a86a6dfa3f3a673" => :mavericks
    sha256 "78638d3488658f86664b3b98ce78d127dedbe2273e50e2bd4ac7b0af550c20c8" => :mountain_lion
  end

  option "32-bit"
  option "without-perl", "Build without Perl support"
  option "without-tcl", "Build without Tcl support"
  option "with-dtrace", "Build with DTrace support"

  deprecated_option "no-perl" => "without-perl"
  deprecated_option "no-tcl" => "without-tcl"
  deprecated_option "enable-dtrace" => "with-dtrace"

  depends_on "openssl"
  depends_on "readline"
  depends_on "libxml2" if MacOS.version <= :leopard # Leopard libxml is too old
  depends_on :python => :optional

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

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

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

    args = %W[
      --disable-debug
      --prefix=#{prefix}
      --datadir=#{share}/#{name}
      --docdir=#{doc}
      --enable-thread-safety
      --with-bonjour
      --with-gssapi
      --with-ldap
      --with-openssl
      --with-pam
      --with-libxml
      --with-libxslt
    ]

    args << "--with-python" if build.with? "python"
    args << "--with-perl" if build.with? "perl"

    # The CLT is required to build Tcl support on 10.7 and 10.8 because
    # tclConfig.sh is not part of the SDK
    if build.with?("tcl") && (MacOS.version >= :mavericks || MacOS::CLT.installed?)
      args << "--with-tcl"

      if File.exist?("#{MacOS.sdk_path}/usr/lib/tclConfig.sh")
        args << "--with-tclconfig=#{MacOS.sdk_path}/usr/lib"
      end
    end

    args << "--enable-dtrace" if build.with? "dtrace"
    args << "--with-uuid=e2fs"

    if build.build_32_bit?
      ENV.append %w[CFLAGS LDFLAGS], "-arch #{Hardware::CPU.arch_32_bit}"
    end

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

  def post_install
    unless File.exist? "#{var}/postgres"
      system "#{bin}/initdb", "#{var}/postgres"
    end
  end

  def caveats; <<-EOS.undent
    If builds of PostgreSQL 9 are failing and you have version 8.x installed,
    you may need to remove the previous version first. See:
      https://github.com/Homebrew/homebrew/issues/2510

    To migrate existing data from a previous major version (pre-9.4) of PostgreSQL, see:
      https://www.postgresql.org/docs/9.4/static/upgrading.html
    EOS
  end

  plist_options :manual => "postgres -D #{HOMEBREW_PREFIX}/var/postgres"

  def plist; <<-EOS.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}</string>
      <key>ProgramArguments</key>
      <array>
        <string>#{opt_bin}/postgres</string>
        <string>-D</string>
        <string>#{var}/postgres</string>
        <string>-r</string>
        <string>#{var}/postgres/server.log</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
      <key>WorkingDirectory</key>
      <string>#{HOMEBREW_PREFIX}</string>
      <key>StandardErrorPath</key>
      <string>#{var}/postgres/server.log</string>
    </dict>
    </plist>
    EOS
  end

  test do
    system "#{bin}/initdb", testpath/"test"
  end
end