Dockerfile

FROM gitea/gitea

RUN apk --no-cache add git qt5-qtbase qt5-qtmultimedia libstdc++ build-base bison cmake libx11-dev mesa-dev libxmu-dev libxi-dev glew-dev freeglut-dev glib-dev glib glu glu-dev gettext gettext-dev gettext-libs

WORKDIR /

RUN git clone --depth=5 git://github.com/openscad/openscad.git

WORKDIR /openscad

RUN git submodule update --init

RUN ls -lah /usr/bin/cc 

RUN source ./scripts/setenv-unibuild.sh \
 && ./scripts/uni-build-dependencies.sh \
 && ./scripts/check-dependencies.sh

generate_scad.sh

#!/bin/bash
#Parsing inputs
file_name=$(basename "$GITEA_PREFIX_RAW")
input_file="$1"

#Defining temp files
tmpfile=$(mktemp /tmp/generate_scad.XXXXXX.png)
tmpfile_scad=$(mktemp /tmp/generate_scad.XXXXXX.scad)

#Detect filetype 
if [ ${GITEA_PREFIX_RAW: -4} == ".stl" ]; then
  # Generate a scad file containing 
  echo "import(\"$1\", convexity=30);" >> "$tmpfile_scad"
  input_file="$tmpfile_scad"
fi

#Rendering PNG
openscad -q -o "$tmpfile" --autocenter --imgsize 512,512 --viewall --view wireframe --colorscheme Nature "$input_file"

#Rendering HTML
echo "<img src='data:image/png;base64,$(base64 -w 0 $tmpfile)' alt='$file_name'/>"

#Cleaning
rm "$tmpfile" "$tmpfile_scad"