Merge branch 'main' into finite_markov_nparray

Author: mmcky

.github/workflows/cache.yml

@@ -0,0 +1,29 @@
+name: Build Cache [using jupyter-book]
+on:
+  push:
+    branches:
+      - main
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup Anaconda
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          auto-update-conda: true
+          auto-activate-base: true
+          miniconda-version: 'latest'
+          python-version: 3.8
+          environment-file: environment.yml
+          activate-environment: quantecon
+      - name: Build HTML
+        shell: bash -l {0}
+        run: |
+          jb build lectures --path-output ./ -W --keep-going
+      - name: Upload "_build" folder (cache)
+        uses: actions/upload-artifact@v2
+        with:
+          name: build-cache
+          path: _build

.github/workflows/ci.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Download "build" folder (cache)
         uses: dawidd6/action-download-artifact@v2
         with:
-          workflow: publish.yml
+          workflow: cache.yml
           branch: main
           name: build-cache
           path: _build

.github/workflows/publish.yml

@@ -36,6 +36,13 @@ jobs:
       - name: Display Pip Versions
         shell: bash -l {0}
         run: pip list
+      # - name: Download "build" folder (cache)
+      #   uses: dawidd6/action-download-artifact@v2
+      #   with:
+      #     workflow: cache.yml
+      #     branch: main
+      #     name: build-cache
+      #     path: _build
       # Build Assets (Download Notebooks and PDF via LaTeX)
       - name: Build PDF from LaTeX
         shell: bash -l {0}
@@ -71,11 +78,6 @@ jobs:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: _build/html/
           cname: python.quantecon.org
-      - name: Upload "_build" folder (cache)
-        uses: actions/upload-artifact@v2
-        with:
-          name: build-cache
-          path: _build
       - name: Prepare lecture-python.notebooks sync
         shell: bash -l {0}
         run: |