check-bazel-targets.sh

#!/usr/bin/env bash
# Print commands
# set -x
# Extracted from https://github.com/bazelbuild/bazel/blob/master/scripts/ci/ci.sh

COMMIT_RANGE=${COMMIT_RANGE:-"HEAD^..HEAD"}

echo "${COMMIT_RANGE}"

# Go to the root of the repo
cd "$(git rev-parse --show-toplevel)" || true

# Get list of affected files by the diff
affected_files=$(git diff --name-only "${COMMIT_RANGE}")

# Get a list of the current targets in package form by querying Bazel.
bazel_targets=()
for bazel_target in $affected_files ; do
  bazel_targets+=($(bazel query "$bazel_target"))
done

if (( ${#bazel_targets[@]} == 0 )); then
  echo "No bazel targets found after checking the diff."
  exit 0
fi

# Now check if we need to run some tests based on this change
# E.g. A change in Grid needs to trigger remote tests in other bindings
echo "Checking test targets..."
bazel_targets+=($(bazel query \
    --keep_going \
    --noshow_progress \
    "kind(test, rdeps(//..., set(${bazel_targets[*]})))"))

echo "bazel-targets='${bazel_targets[*]}'" | tee -a "$GITHUB_OUTPUT"