* Fix handling targets with specified db
Handle it in a similar way to handling targets with unspecified db.
Also refactored GraphSyncPkg method to make stuff more DRY.
* update go-mod
* Fix excluding of packages with unsatisfied deps
When dependency is unsatisfied, add to the graph not only a dep node,
but relationship with parent too.
* Remove excess(duplicate) logic
* Add test cases of upgrading with unsatisfied deps
Before this fix dependencies for AUR targets were added to the graph
after each addition of a target node. Now dependencies are added only
after all target nodes are added to the graph.
Also added some tests for previously bugged cases.
* fix dep graph, existing in graph
* do not change from same dep reason
* roll up layer installs in case of fail
* re-use pacman exclude mechanism
should finish the reimplementation of the missing guards from the legacy
engine.
* include update in debug log
* test rollups
* use logger in dep graph
* use logger in dep graph
* use logger in dep graph
* only query for AUR packages once per tier. useful for rpc
* fix performance regression for ros-melodic
* prefer name search first
* implement needed at target gathering
* set default config
* fixup tests for needed
* show new packages in upgrade form if they exist
* refactor up select
* remove unused graph parts
* readd len
* Complete upgrade graphing
* Extract to upgrade pkg
* remove unused dep method
* remove uneeded dep
* cleanup method
* specify io Reader for testing
* use specified input vector
* fix non-active devel
* test base cases
* add devel test cases
* add range tests
* add logger struct
* use logger struct in upgrade
* follow golangci recommendations
* update deps
* update golangci
* make config into parameter
* test(new engine): local install test
* test(keys): fix test keys
* complete integration test for local install
* add simple mising mechanism
