try caching precompilation

Author: jumerckx

.github/workflows/CI.yml

@@ -33,8 +33,6 @@ jobs:
     timeout-minutes: 90
     name: Julia ${{ matrix.version }} - ${{ matrix.test_group }} - ${{ matrix.os }} - ${{ matrix.runtime }} - assertions=${{ matrix.assertions }} - ${{ github.event_name }}
     runs-on: ${{ matrix.os }}
-    container:
-      image: ${{ contains(matrix.os, 'linux') && 'ghcr.io/enzymead/reactant-docker-images:main' || '' }}
     strategy:
       fail-fast: false
       matrix:
@@ -52,7 +50,9 @@ jobs:
           # - macOS-13
           - macOS-latest
         test_group:
-          - core
+          - basic
+          - control_flow
+          - reduced_core
           - neural_networks
           - integration
         runtime:
@@ -61,11 +61,6 @@ jobs:
         assertions:
           - false
         include:
-          - os: linux-x86-ct6e-180-4tpu
-            version: "1.11"
-            assertions: false
-            test_group: core
-            runtime: "IFRT"
           - os: ubuntu-24.04
             version: "1.10"
             assertions: true
@@ -93,17 +88,25 @@ jobs:
           #   libReactant: packaged
           #   version: '1.10'
           #   test_group: integration
+    env:
+        TMPDIR: ${{ github.workspace }}/tmp
+        JULIA_DEPOT_PATH: "${{ github.workspace }}/.julia_depot:"
     steps:
-      - name: Set TMPDIR
-        # We have to use `${GITHUB_WORKSPACE}` instead of `github.workspace` because GitHub
-        # is terrible and the two don't match inside containers:
-        # https://github.com/actions/runner/issues/2058
-        run: |
-          echo "TMPDIR=${GITHUB_WORKSPACE}/tmp" >> ${GITHUB_ENV}
       - uses: actions/checkout@v4
       - name: Create TMPDIR
         run: |
           mkdir -p ${{ env.TMPDIR }}
+      - name: Create Julia Depot Directory
+        run: |
+            mkdir -p ${{ github.workspace }}/.julia_depot
+      - name: Cache Julia Depot
+        uses: actions/cache@v4
+        with:
+            path: ${{ github.workspace }}/.julia_depot
+            key: julia-depot-${{ runner.os }}-${{ runner.arch }}-${{ matrix.version }}-${{ hashFiles('**/Project.toml', '**/Manifest.toml') }}
+            restore-keys: |
+                julia-depot-${{ runner.os }}-${{ runner.arch }}-${{ matrix.version }}-
+                julia-depot-${{ runner.os }}-${{ runner.arch }}-
       - uses: julia-actions/setup-julia@v2
         if: ${{ ! matrix.assertions }}
         with:
@@ -170,4 +173,4 @@ jobs:
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v5
         with:
-          files: lcov.info
+          files: lcov.info