Use GitHub Actions instead of Netlify (#2462)

Signed-off-by: Daniel Gray <dngray@privacyguides.org>

.github/workflows/build-offline.yml

@@ -0,0 +1,114 @@
+# Copyright (c) 2024 Jonah Aragon <jonah@triplebit.net>
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+name: Build Offline Website
+
+on:
+  workflow_call:
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: 'false'
+
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: repo-*
+          path: modules
+
+      - run: |
+          rmdir modules/mkdocs-material
+          mv modules/repo-mkdocs-material-insiders modules/mkdocs-material
+          rmdir theme/assets/brand
+          mv modules/repo-brand theme/assets/brand
+
+      - name: Python setup
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.8'
+          cache: 'pipenv'
+
+      - uses: actions/cache/restore@v4.0.2
+        with:
+          key: site-cache-${{ github.repository }}-en-${{ github.ref }}-${{ hashfiles('.cache/**') }}
+          path: .cache
+          restore-keys: |
+            site-cache-${{ github.repository }}-en-${{ github.ref }}-
+            site-cache-${{ github.repository }}-en-
+
+      - name: Install Python dependencies
+        run: |
+          pip install pipenv
+          pipenv install
+          sudo apt install pngquant
+
+      - name: Build website
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CARDS: false
+        run: |
+          pipenv run mkdocs build --config-file config/mkdocs-offline.yml
+          pipenv run mkdocs --version
+
+      - name: Package website
+        run: |
+          tar -czvf offline.tar.gz site
+          zip -r -q offline.zip site
+
+      - uses: actions/cache/save@v4.0.2
+        with:
+          key: site-cache-${{ github.repository }}-en-${{ github.ref }}-${{ hashfiles('.cache/**') }}
+          path: .cache
+
+      - name: Upload tar.gz file
+        uses: actions/upload-artifact@v4
+        with:
+          name: offline.tar.gz
+          path: offline.tar.gz
+
+      - name: Upload zip file
+        uses: actions/upload-artifact@v4
+        with:
+          name: offline.zip
+          path: offline.zip
+
+      - name: Create ZIM File
+        uses: addnab/docker-run-action@v3
+        with:
+          image: ghcr.io/openzim/zim-tools:3.1.3
+          options: -v ${{ github.workspace }}:/data
+          run: |
+            zimwriterfs -w index.html -I assets/brand/logos/png/square/pg-yellow.png -l eng -t "Privacy Guides" -d "Your central privacy and security resource to protect yourself online." -c "Privacy Guides" -p "Jonah Aragon" -n "Privacy Guides" -e "https://github.com/privacyguides/privacyguides.org" /data/site /data/privacy_guides.zim
+
+      - name: Upload ZIM file
+        uses: actions/upload-artifact@v4
+        with:
+          name: offline-privacy_guides.zim
+          path: offline-privacy_guides.zim