Remove caches#77
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Base#initialize calls #clear which in turns calls #update already
…kgConfig The #update method so far was keeping all pkg-config objects, instead of extracting the (very limited) information it needs and keeping only that. This uses an updated Utilrb::PkgConfig class which allows to load pkg-config files only partially
The real problem is that #update loads everything, which is really optimizing for the corner case (discovery) versus the common case (loading) This refactoring makes all loading lazy, and updates the test suite to achieve a 95%+ coverage.
This is needed for rock-inspect and rock-browse.
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This pull request removes the two main caches that were present, related to orogen loading
It depends on orocos-toolchain/utilrb#30.
rock-core/tools-orocosrb#94 must be applied at the same time, as some private APIs of Loaders::PkgConfig is used by Orocos::Process.
These two caches were meant to work around bad orogen loading behaviour in the pre-loaders days, that is the fact that orogen had a tendency to load the same package over and over again. This has been fixed by the orogen loaders.
Their side effect - and why I remove them - was that we ended up with more than 250k objects in the Ruby heap in a typical Syskit application, that were only related to these - and never used. That's more than 50% of the total.