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Add documentation and example for greedy_method

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Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
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Lubomír Sedlář 2017-01-19 09:24:54 +01:00
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doc/configuration.rst
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@ -501,7 +501,29 @@ Options
following build dependencies. Only use when ``gather_method = "deps"``. following build dependencies. Only use when ``gather_method = "deps"``.
**greedy_method** **greedy_method**
(*str*) -- see :doc:`gather`, recommended value: "build" (*str*) -- This option controls how package requirements are satisfied in
case a particular ``Requires`` has multiple candidates.
* ``none`` -- the best packages is selected to satisfy the dependency and
only that one is pulled into the compose
* ``all`` -- packages that provide the symbol are pulled in
* ``build`` -- the best package is selected, and then all packages from the
same build that provide the symbol are pulled in
.. note::
As an example let's work with this situation: a package in the compose
has ``Requires: foo``. There are three packages with ``Provides: foo``:
``pkg-a``, ``pkg-b-provider-1`` and ``pkg-b-provider-2``. The
``pkg-b-*`` packages are build from the same source package. Best match
determines ``pkg-b-provider-1`` as best matching package.
* With ``greedy_method = "none"`` only ``pkg-b-provider-1`` will be
pulled in.
* With ``greedy_method = "all"`` all three packages will be
pulled in.
* With ``greedy_method = "build" ``pkg-b-provider-1`` and
``pkg-b-provider-2`` will be pulled in.
**multilib_methods** [deprecated] **multilib_methods** [deprecated]
([*str*]) -- use ``multilib`` instead to configure this per-variant ([*str*]) -- use ``multilib`` instead to configure this per-variant