CodeQL #57

	name: CodeQL

	on:
	# Disabled for push/PR due to Scala/SBT compatibility issues with CodeQL tracer
	# See: https://github.com/github/codeql-action/issues/859
	# push:
	# branches: [ master, main ]
	# pull_request:
	# branches: [ master, main ]
	schedule:
	- cron: "0 6 * * 1"
	workflow_dispatch:

	permissions:
	actions: read
	contents: read
	security-events: write

	env:
	JAVA_VERSION: "17"
	SCALA_VERSION: "2.13.14"
	SPARK_VERSION: "3.5.1"

	jobs:
	analyze:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-java@v4
	with:
	distribution: temurin
	java-version: ${{ env.JAVA_VERSION }}

	- uses: sbt/setup-sbt@v1

	# Cache speeds up dependency resolution so CodeQL has more time to analyze.
	- name: Cache Ivy / Coursier / SBT
	uses: actions/cache@v4
	with:
	path: \|
	~/.ivy2/cache
	~/.sbt
	~/.cache/coursier
	key: ${{ runner.os }}-codeql-${{ hashFiles('*/.sbt', 'project/**') }}
	restore-keys: \|
	${{ runner.os }}-codeql-

	# Initialize CodeQL for the JVM extractor (covers Java/Kotlin/Scala bytecode)
	- uses: github/codeql-action/init@v3
	with:
	languages: java
	queries: security-and-quality
	# Use manual build-mode for Scala to avoid autobuild
	build-mode: manual

	# MANUAL BUILD: compile Scala so the CodeQL tracer can extract the build
	- name: Compile (Scala -> JVM bytecode)
	run: \|
	sbt ++${{ env.SCALA_VERSION }} -Dspark.version=${{ env.SPARK_VERSION }} \
	clean compile Test/compile

	# Run the analysis after classes exist
	- uses: github/codeql-action/analyze@v3
	with:
	category: "/language:java"

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