[lucicfg] Check that the graph has no dangling edges when finalizing it.

Also:
  1. Make all graph errors implement BacktracableError.
  2. Forbid querying non-finalized graphs.

R=nodir@chromium.org
BUG=833946

Change-Id: Ic912f5379a09cf12490fe3b16d547ad695e01639
Reviewed-on: https://chromium-review.googlesource.com/c/1361576
Commit-Queue: Vadim Shtayura <vadimsh@chromium.org>
Reviewed-by: Nodir Turakulov <nodir@chromium.org>
11 files changed
tree: 0f7323c48755082a40d6bb2bfcd39969a2829f2f
  1. appengine/
  2. auth/
  3. buildbucket/
  4. cipd/
  5. client/
  6. common/
  7. config/
  8. dm/
  9. examples/
  10. gce/
  11. grpc/
  12. hardcoded/
  13. infra/
  14. logdog/
  15. luci_notify/
  16. lucicfg/
  17. lucictx/
  18. machine-db/
  19. milo/
  20. mmutex/
  21. mp/
  22. scheduler/
  23. scripts/
  24. server/
  25. starlark/
  26. tokenserver/
  27. tools/
  28. tumble/
  29. vpython/
  30. web/
  31. .travis.yml
  32. AUTHORS
  33. codereview.settings
  34. CONTRIBUTING.md
  35. CONTRIBUTORS
  36. LICENSE
  37. OWNERS
  38. pre-commit-go.yml
  39. PRESUBMIT.py
  40. README.md
README.md

luci-go: LUCI services and tools in Go

GoDoc

Installing

LUCI Go code is meant to be worked on from an Chromium infra.git checkout, which enforces packages versions and Go toolchain version. First get fetch via depot_tools.git then run:

fetch infra
cd infra/go
eval `./env.py`
cd src/go.chromium.org/luci

Contributing

Contributing uses the same flow as Chromium contributions.