Query: new "graphless" implementation

This is the initial commit of a new query implementation that does not
copy parts of the graph into a Digraph instance. Initially, this only
works for unordered output.

This is significantly faster than the current implementation, especially
for use cases where the caller only wants to dump package information,
e.g., bazel query <package>:*, which are commonly done by tools that
want to work with packages but do not use any advanced query
functionality.

PiperOrigin-RevId: 251191861
19 files changed
tree: 4a064849e84b9afa27ea8286c182033179f0d8dc
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .bazelrc
  9. .gitattributes
  10. .gitignore
  11. AUTHORS
  12. BUILD
  13. CHANGELOG.md
  14. CODEOWNERS
  15. combine_distfiles.py
  16. combine_distfiles_to_tar.sh
  17. compile.sh
  18. CONTRIBUTING.md
  19. CONTRIBUTORS
  20. distdir.bzl
  21. ISSUE_TEMPLATE.md
  22. LICENSE
  23. README.md
  24. WORKSPACE
README.md

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