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rel(5)


NAME

   rel - Release resource file

DESCRIPTION

   The  release resource file specifies which applications 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 is to 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():
       Release name.

     Vsn = string():
       Release version.

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

     Application = atom():
       Name of an application included in the release.

     AppVsn = string():
       Version of an application included in the release.

     Type = permanent | transient | temporary | load | none:
       Start type of an application included in the release.

       If Type = permanent | transient |  temporary,  the  application  is
       loaded and started in the corresponding way, see application(3erl).

       If Type = load, the application is only loaded.

       If  Type  =  none,  the  application is not loaded and not started,
       although the code for its modules is loaded.

       Defaults to permanent

     IncApps = [atom()]:
       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)



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