Without tooling this will be difficult.  If we wanted to use the big hammer
approach the we would have the API tooling (or plain old PDE) mark exports
without versions as a warning/error by default or update each project
settings in eclipse to make it an error.  Now the question is what version
would all the well established packages use?  Most eclipse packages do not
specify a version which means they have been using the default version of
0.0.0.  If a package is being versioned for the first time what should its
version be?

- Start off using 1.0.0
- Use the Bundle-Version

I favor using the Bundle-Version for well established packages because if
we decide to add versions to the maintenance streams then we have room to
downgrade the versions as appropriate.  Completely new packages in a
release should start off with version 1.0.

I have been trying to version the exports of org.eclipse.osgi for the past
few releases.  It is hard to keep track of without tooling.  Just look at
how many times we forget to increment the bundle versions in Eclipse and
that is just one version number per bundle to maintain.  Now we will have
to maintain each package version individually which is a much bigger task.
Hopefully more advanced API tooling could detect that the API package has
changed since last release and needs to be incremented.  Does the new API
tooling currently do something like this for Bundle-Version?


  From:       Jeff McAffer <[EMAIL PROTECTED]>                   
  To:         equinox-dev@eclipse.org                                  
  Date:       01/11/2008 02:17 PM                                      
  Subject:    [equinox-dev] Fw: [Bug 214801] [api tools] consider 
Export-Package      as API

Tom raises a good point that we keep letting slide.  Are we going to ensure
that all export package statements have version numbers for 3.4?  If we
have API tooling for this then it would likely be reasonable to start
doing.  Even without tooling today, we could introduce version numbers
based on the bundle version number for this release and then evolve from
there (with tooling that will come in the future).


----- Forwarded by Jeff McAffer/Ottawa/IBM on 01/11/2008 01:22 PM -----
 [EMAIL PROTECTED]                                             
 01/11/2008 10:50 AM                 Jeff McAffer/Ottawa/[EMAIL PROTECTED]     
                                     [Bug 214801] [api tools] consider 
                                     Export-Package as API             

Product/Component: PDE / Incubators

--- Comment #2 from Thomas Watson <[EMAIL PROTECTED]>  2008-01-11
10:50:13 -0400 ---
I agree with the concept.  All exported packages which are not marked
x-internal:=true should be versioned.  Without this it makes using
Import-Package very limiting because you cannot specify what version of the
package you require.  Packages marked as x-friends are questionable, but I
see friend bundles depending on a particular friend package version.

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