[workflow:nightly] Rebuild CI infra, add nightly workflow.

.devcontainer/make_devcontainers.sh

@@ -74,6 +74,7 @@ while [[ $# -gt 0 ]]; do
 done
 
 MATRIX_FILE="../ci/matrix.yaml"
+COMPUTE_MATRIX="../.github/actions/workflow-build/build-workflow.py"
 
 # Enable verbose mode if requested
 if [ "$VERBOSE" = true ]; then
@@ -82,16 +83,17 @@ if [ "$VERBOSE" = true ]; then
 fi
 
 # Read matrix.yaml and convert it to json
-matrix_json=$(yq -o json ${MATRIX_FILE})
+matrix_json=$(python3 ${COMPUTE_MATRIX} ${MATRIX_FILE} --devcontainer-info)
 
-# Exclude Windows environments
-readonly matrix_json=$(echo "$matrix_json" | jq 'del(.pull_request.nvcc[] | select(.os | contains("windows")))')
+if [ "$VERBOSE" = true ]; then
+    echo "$matrix_json"
+fi
 
 # Get the devcontainer image version and define image tag root
 readonly DEVCONTAINER_VERSION=$(echo "$matrix_json" | jq -r '.devcontainer_version')
 
 # Get unique combinations of cuda version, compiler name/version, and Ubuntu version
-readonly combinations=$(echo "$matrix_json" | jq -c '[.pull_request.nvcc[] | {cuda: .cuda, compiler_name: .compiler.name, compiler_exe: .compiler.exe, compiler_version: .compiler.version, os: .os}] | unique | .[]')
+readonly combinations=$(echo "$matrix_json" | jq -c '.combinations[]')
 
 # Update the base devcontainer with the default values
 # The root devcontainer.json file is used as the default container as well as a template for all

.github/actions/workflow-build/action.yml

@@ -0,0 +1,95 @@
+name: "CCCL Build Workflow"
+description: "Parses a matrix definition and exports a set of dispatchable build/test/etc jobs."
+
+inputs:
+  workflows:
+    description: "Space separated list of workflows in matrix file to run"
+    required: true
+  skip_tests:
+    description: "Skip running tests"
+    default: "false"
+    required: false
+  inspect_changes_script:
+    description: "If defined, run this script to determine which projects/deps need to be tested."
+    default: ""
+    required: false
+  inspect_changes_base_sha:
+    description: "If defined, use this base ref for inspect-changes script."
+    default: ""
+    required: false
+  matrix_file:
+    description: "Path to the matrix file in the consumer repository."
+    default: "ci/matrix.yaml"
+    required: false
+  matrix_parser:
+    description: "Path to the matrix parser script (default if blank: build-workflow.py from action dir)"
+    default: ""
+    required: false
+
+outputs:
+  workflow:
+    description: "The dispatchable workflow matrix"
+    value: ${{ steps.build-workflow.outputs.workflow }}
+  workflow_keys:
+    description: "The keys of the parsed workflow"
+    value: ${{ steps.build-workflow.outputs.workflow_keys }}
+
+runs:
+  using: "composite"
+  steps:
+
+    - name: Inspect changes
+      if: ${{ inputs.inspect_changes_script != '' && inputs.inspect_changes_base_sha != '' }}
+      id: inspect-changes
+      shell: bash --noprofile --norc -euo pipefail {0}
+      env:
+        base_ref: ${{ inputs.inspect_changes_base_sha }}
+      run: |
+        echo "Running inspect-changes script..."
+        ${{ inputs.inspect_changes_script }} ${base_ref} ${GITHUB_SHA}
+        echo "Exporting summary..."
+        mkdir workflow
+        cp ${GITHUB_STEP_SUMMARY} workflow/changes.md
+
+    - name: Parse matrix file into a workflow
+      id: build-workflow
+      shell: bash --noprofile --norc -euo pipefail {0}
+      env:
+        skip_tests: ${{ inputs.skip_tests == 'true' && '--skip-tests' || ''}}
+        dirty_projects_flag: ${{ steps.inspect-changes.outputs.dirty_projects != '' && '--dirty-projects' || ''}}
+        dirty_projects: ${{ steps.inspect-changes.outputs.dirty_projects }}
+        matrix_parser: ${{ inputs.matrix_parser && inputs.matrix_parser || '${GITHUB_ACTION_PATH}/build-workflow.py' }}
+      run: |
+        echo "Parsing matrix file into a workflow..."
+
+        ${{ env.matrix_parser }} ${{ inputs.matrix_file }}           \
+            --workflows ${{ inputs.workflows }}                      \
+            ${{ env.skip_tests }}                                    \
+            ${{ env.dirty_projects_flag }} ${{ env.dirty_projects }}
+
+        echo "::group::Workflow"
+        cat workflow/workflow.json
+        echo "::endgroup::"
+
+        echo "::group::Runners"
+        cat workflow/runner_summary.json | jq -r '"# \(.heading)\n\n\(.body)"' | tee -a "${GITHUB_STEP_SUMMARY}"
+        echo "::endgroup::"
+
+        echo "::group::Job List"
+        cat workflow/job_list.txt
+        echo "::endgroup::"
+
+        echo "Setting outputs..."
+        echo "::group::GHA Output: WORKFLOW"
+        printf "WORKFLOW=%s\n" "$(cat workflow/workflow.json | jq -c '.')" | tee -a "${GITHUB_OUTPUT}"
+        echo "::endgroup::"
+
+        echo "::group::GHA Output: WORKFLOW_KEYS"
+        printf "WORKFLOW_KEYS=%s\n" "$(cat workflow/workflow_keys.json | jq -c '.')" | tee -a "${GITHUB_OUTPUT}"
+        echo "::endgroup::"
+
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v3
+      with:
+        name: workflow
+        path: workflow/