RE: [PATCH v1 1/1] usertools: add DPDK build directory setup script

["Morten Brørup" <mb@smartsharesystems.com>]

> From: Anatoly Burakov [mailto:anatoly.burakov@intel.com]
> 
> Currently, the only way to set up a build directory for DPDK development
> is through running Meson directly. This has a number of drawbacks.
> 
> For one, the default configuration is very "fat", meaning everything gets
> enabled and built (aside from examples, which have to be enabled
> manually), so while Meson is very good at minimizing work needed to rebuild
> DPDK, for any change that affects a lot of components (such as editing an
> EAL header), there's a lot of rebuilding to do.
> 
> It is of course possible to reduce the number of components built through
> meson options, but this mechanism isn't perfect, as the user needs to
> remember exact spelling of all the options and components, and currently
> it doesn't handle inter-component dependencies very well (e.g. if net/ice
> is enabled, common/iavf is not automatically enabled, so net/ice can't be
> built unless user also doesn't forget to specify common/iavf).
> 
> Enter this script. It relies on Meson's introspection capabilities as well
> as the dependency graphs generated by our build system to display all
> available components, and handle any dependencies for them automatically,
> while also not forcing user to remember any command-line options and lists
> of drivers, and instead relying on interactive TUI to display list of
> available options. It can also produce builds that are as minimal as
> possible (including cutting down libraries being built) by utilizing the
> fact that our dependency graphs report which dependency is mandatory and
> which one is optional.
> 
> Because it is not meant to replace native Meson build configuration but
> is rather targeted at users who are not intimately familiar wtih DPDK's
> build system, it is run in interactive mode by default. However, it is
> also possible to run it without interaction, in which case it will pass
> all its parameters to Meson directly, with added benefit of dependency
> tracking and producing minimal builds if desired.
> 
> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>

Acked-by: Morten Brørup <mb@smartsharesystems.com>