Add sphinx image

.github/workflows/docker-image.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        tag: ["alpine", "clang-tools", "cpp", "package", "qt", "snap", "docker-cli"]
+        tag: ["alpine", "clang-tools", "cpp", "package", "qt", "snap", "docker-cli", "sphinx"]
     permissions:
       contents: read
       packages: write

Dockerfile.sphinx

@@ -0,0 +1,22 @@
+FROM ubuntu:latest
+
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y \
+        curl \
+        fonts-inconsolata \
+        fonts-lato \
+        git \
+        latexmk \
+        locales \
+        make \
+        python3 \
+        python3-pip \
+        texlive \
+        texlive-fonts-extra \
+        texlive-fonts-recommended \
+        texlive-lang-cjk \
+        texlive-latex-extra \
+        texlive-latex-recommended \
+        texlive-xetex \
+        tzdata && \
+    pip3 install six sphinx_rtd_theme