automatically modifying scriptlets (included files) at package build time

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Hello,



        I would like to know if there is a way to do this:

        <eddyp_work>    is there a way to generate the maintainer scripts out
        of .in scriptlets, at build time (i.e. use templates for the maintainer
        scriptlets and run some tool to generate the ones that should end up in
        the package)
        <f13>   eddyp_work: that gets in the way of scripted rebuilds and such
        <eddyp_work>    f13: why would it?
        <f13>   eddyp_work: because scripts expect a .spec file, not a .spec.in
        <eddyp_work>    f13: spec files can use includes....
        <eddyp_work>    f13: I was thinking of generating those before the
        package build; something like a configure stage, but for the package
        itself
        <f13>   eddyp_work: *shrug* would be worth posting to fedora-devel-list
        with an example of what you want to do
        <eddyp_work>    f13: debian can do that in the debian/rules file
        <eddyp_work>    f13: I want to be able to have a variable set in the
        scripts with some contents that is got from the source
        <eddyp_work>    s/scripts/maintainer scriptlets/



        The main idea is that I am maintaing the packages for our antivirus
        product and we have some automated builder for the packages and the
        upstream part of the packages.

        There can be multiple releases/day of the upstream package and the rpm
        packages are updated automatically to follow the upstream packages'
        versions.

        Now, here follows the tricky part, so please pay attention: the upstream
        package itself contains some file that specifies the version of the
        package (we needed this to be able to tell which version over which
        version we're upgrading/installing, since rpm doesn't pass this
        information to the {pre,post}{,rm} scripts).

        (I am using includes already and have the scriptlets separated into
        scripts.)


        So the thing is that the file in the package can have a different
        version than the one of the package or the tarball, so the scripts need
        to use/know the version that is placed in the files themselves.


        That's why I need some kind of configuration step of the package that
        can be always ran after the package was unpacked, but before the package
        is generated so I can generate the scriptlets with the filled
        information so the upgrade part works correctly.


        Is rpm able to do such a thing?


-- 
Regards,
EddyP
=============================================
"Imagination is more important than knowledge" A.Einstein

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