Prevent concurrent fetches on the same repository

Running multiple fetches concurrently on the same repository
is unnecessary and often counterproductive, as one or more of
them are likely to fail.

To avoid this, ensure that only one fetch is executed at a time
per repository.

Bug: Issue 437805590
Change-Id: I7883e680e018705fcc0d307356b1c541fe8ecc93
2 files changed
tree: 1e4c27577ad92fc8d5bf37f25ddc7383de79f67b
  1. example-setup/
  2. src/
  3. .gitignore
  4. BUILD
  5. Jenkinsfile
  6. LICENSE