rm old wf

.github/workflows/CI.yml

@@ -22,7 +22,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
@@ -42,4 +42,31 @@ jobs:
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v1
         with:
-          file: lcov.info
+          file: lcov.info
+  docs:
+    name: Documentation
+    runs-on: ubuntu-latest
+    permissions:
+      actions: write # needed to allow julia-actions/cache to proactively delete old caches that it has created
+      contents: write
+      statuses: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: '1'
+      - run: sudo apt-get update && sudo apt-get install -y xorg-dev mesa-utils xvfb libgl1 freeglut3-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxext-dev
+      - run: |
+          julia --project=docs -e '
+            using Pkg
+            Pkg.develop(PackageSpec(path=pwd()))
+            Pkg.instantiate()'
+      - run: |
+          DISPLAY=:0 xvfb-run -s '-screen 0 1024x768x24' julia --project=docs -e '
+            using Documenter: doctest
+            using SpectralIndices
+            doctest(SpectralIndices)'
+      - run: xvfb-run -s '-screen 0 1024x768x24' julia --project=docs docs/make.jl
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }}