chore(docs) fix latex build

.github/workflows/compile_docs.yml

@@ -34,7 +34,7 @@ jobs:
             !${{ env.pythonLocation }}/lib/python*/site-packages/setuptools*
           key: ${{ env.pythonLocation }}
       - name: Install Doxygen and Latex dependencies
-        run: sudo apt-get install doxygen texlive-xetex
+        run: sudo apt-get install doxygen texlive-xetex makeindex texlive-lang-english
       - name: Install requirements
         run: |
           pip install --upgrade --upgrade-strategy eager sphinx recommonmark commonmark breathe sphinx-rtd-theme sphinx-markdown-tables sphinx-sitemap

docs/build.py

@@ -60,9 +60,7 @@ cmd("cd ../scripts && doxygen Doxyfile")
 cmd("sphinx-build -b latex . out_latex")
 
 # Generate PDF
-cmd("cd out_latex && makeindex LVGL.idx")
+cmd("cd out_latex && latexmk -pdf 'LVGL.tex'")
-cmd("cd out_latex && makeindex -s python.ist  -o LVGL.ind LVGL.idx")
-cmd("cd out_latex && xelatex -interaction=batchmode *.tex")
 # Copy the result PDF to the main directory to make it avaiable for the HTML build
 cmd("cd out_latex && cp -f LVGL.pdf ../LVGL.pdf")
 

docs/conf.py

@@ -146,6 +146,8 @@ html_last_updated_fmt = ''
 
 # -- Options for LaTeX output ---------------------------------------------
 
+latex_engine = 'xelatex'
+latex_use_xindy = False
 latex_elements = {
     # The paper size ('letterpaper' or 'a4paper').
     #
@@ -166,6 +168,7 @@ latex_elements = {
     'inputenc': '',
     'utf8extra': '',
     'classoptions': ',openany,oneside',
+    'babel': '\\usepackage{babel}',
     'preamble': r'''
 \usepackage{fontspec}
 \setmonofont{DejaVu Sans Mono}