NAME

       rel - Release resource file

DESCRIPTION

       The  release  resource  file  specifies  which  applications are are included in a release
       (system) based on Erlang/OTP.

       This file is used by the functions in systools when  generating  start  scripts  (.script,
       .boot) and release upgrade files (relup).

FILE SYNTAX

       The release resource file should be called Name.rel.

       The  .rel  file  contains one single Erlang term, which is called a release specification.
       The file has the following syntax:

       {release, {RelName,Vsn}, {erts, EVsn},
         [{Application, AppVsn} |
          {Application, AppVsn, Type} |
          {Application, AppVsn, IncApps} |
          {Application, AppVsn, Type, IncApps}]}.

         * RelName = string() is the name of the release.

         * Vsn = string() is the version of the release.

         * EVsn = string() is the version of ERTS the release is intended for.

         * Application = atom() is the name of an application included in the release.

         * AppVsn = string() is the version of an application included in the release.

         * Type = permanent | transient | temporary | load  |  none  is  the  start  type  of  an
           application included in the release.

           If  Type  =  permanent  |  transient  |  temporary, the application will be loaded and
           started in  the  corresponding  way,  see  application(3erl).  If  Type  =  load,  the
           application  will  only  be  loaded.  If  Type = none, the application will be neither
           loaded nor started, although the code for its modules  will  be  loaded.  Defaults  to
           permanent

         * IncApps  =  [atom()]  is  a  list  of applications that are included by an application
           included in the release.

           The list must be a subset of the included applications specified  in  the  application
           resource  file  (Application.app) and overrides this value. Defaults to the same value
           as in the application resource file.

   Note:
       The list of applications must contain the kernel and stdlib applications.

SEE ALSO

       application(3erl), relup(5), systools(3erl)