Local godoc server for private packages. You will need to build the search index (periodically) to use search functionality.

org.golang.doc.example.plist

?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN
           http://www.apple.com/DTDs/PropertyList-1.0.dtd >
<plist version="1.0">
    <dict>
        <key>EnvironmentVariables</key>
        <dict>
            <key>GOPATH</key>
            <string>{YOUR GOPATH}</string>
            <key>GOROOT</key>
            <string>/usr/local/go</string>
        </dict>
      <key>Label</key>
      <string>org.golang.doc.example</string>
      <key>ProgramArguments</key>
      <array>
          <string>/usr/local/go/bin/godoc</string>
          <string>-v</string>
          <string>-goroot=/usr/local/go</string>
          <string>-http=:6060</string>
          <string>-index</string>
          <string>-index_files=/tmp/godoc_index.db</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
  </dict>
</plist>

To build the search index use:

godoc -goroot=/usr/local/go -index -index_files=/tmp/godoc_index.db -write_index