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Re: [cross-project-issues-dev] Are about.ini, about.mappings and about.properties obsolete?
On Tue, Aug 20, 2013 at 7:00 AM, Ed Willink <ed@xxxxxxxxxxxxx> wrote:

While checking why a rebuild refreshed a JAR file, I discovered that an about.mappings file gets rewritten during a build to contain the build-id. This was perhaps useful 5 years ago. Has it gone obsolete? Is it used anywhere?

about.mappings in a branding plugin contains the build id (and any other parameterizations) that are applied in the  about.properties file.  ex, org.eclipse.rcp/about.properties contains lines:
blurb=Eclipse RCP\n\
\n\
Version: {featureVersion}\n\
Build id: {0}\n\
...

If you don't have any parameterizations in your about.properties, you don't need the about.mappings.

In the Eclipse SDK, we still use it, and so every build must generate a new jar with a new qualifier [1]



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