Add JET workflow

.github/workflows/JET.yml

@@ -0,0 +1,55 @@
+name: JET
+
+on:
+  push:
+    branches:
+      - master
+      - release-*
+    tags: ['*']
+  pull_request:
+  workflow_dispatch:
+
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+jobs:
+  test:
+    name: Julia ${{ matrix.julia-version }}-${{ matrix.julia-arch }} - ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    permissions: # needed to allow julia-actions/cache to proactively delete old caches that it has created
+      actions: write
+      contents: read
+    strategy:
+      fail-fast: false
+      matrix:
+        julia-version: ['lts', '1']
+        os: [ubuntu-latest]
+        julia-arch: [x64]
+
+    steps:
+      - uses: actions/checkout@v7
+      - name: "Set up Julia"
+        uses: julia-actions/setup-julia@v3
+        with:
+          version: ${{ matrix.julia-version }}
+          arch: ${{ matrix.julia-arch }}
+      - uses: julia-actions/cache@v3
+      - uses: julia-actions/julia-buildpkg@v1
+      - name: Install JET
+        run: |
+          julia -e '
+            using Pkg; Pkg.add("JET");
+            Pkg.status(; mode=PKGMODE_MANIFEST)'
+      - name: Run JET testing
+        run: |
+          julia --project=. --color=yes -e '
+            using JET, Test
+            using FixedPointNumbers
+            println("report_package(FixedPointNumbers, toplevel_logger=nothing)")
+            show(JET.report_package(FixedPointNumbers, toplevel_logger=nothing))
+            @testset "JET" begin
+                JET.test_package(FixedPointNumbers; target_modules=(FixedPointNumbers,))
+            end'