initial setup (#1)

Add a workflow that produces STL and png artifact from .scad file. Then converts the STL it to obj and step with KittyCAD, and if the workflow is triggered by a tag push, then make a release.

.github/workflows/create-artifacts.yml

@@ -0,0 +1,36 @@
+name: create artifacts
+on:
+  pull_request:
+  push:
+    tags:
+    - '*'
+
+jobs:
+  create-artifacts:
+    runs-on: ubuntu-latest
+    name: create artifacts
+    steps:
+      - uses: actions/checkout@v3
+      - uses: Irev-Dev/action-install-openscad-nightly@v0.0.1
+      - name: create stl
+        run: |
+          xvfb-run --auto-servernum --server-args "-screen 0 1024x768x24" openscad-nightly -o ./output.stl --export-format "asciistl" ./demo-thing.scad
+          xvfb-run --auto-servernum --server-args "-screen 0 1024x768x24" openscad-nightly -o ./output.png --imgsize=1000,300 --camera=-0.4,1.3,2.5,68,0,58,39 ./demo-thing.scad
+      - uses: KittyCAD/install-cli@v0.0.4
+      - name: convert
+        run: |
+          kittycad file convert output.stl output.obj
+          kittycad file convert output.stl output.step
+          ls
+        env: 
+          KITTYCAD_API_TOKEN: ${{ secrets.KITTYCAD_API_TOKEN }}
+      - uses: actions/upload-artifact@v3
+        if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
+        with:
+          name: outputs
+          path: ./output.*
+      - uses: ncipollo/release-action@v1
+        if: ${{ startsWith(github.ref, 'refs/tags/v') }}
+        with:
+          artifacts: "./output.stl, ./output.obj, ./output.step, ./output.png"
+          token: ${{ secrets.GITHUB_TOKEN }}

demo-thing.scad

@@ -0,0 +1,14 @@
+$fn=30;
+
+union() {
+    translate([2.5,0,0])rotate([0,-90,0])linear_extrude(5)polygon([
+        [0, 2],
+        [0, -2],
+        [2, 0]
+    ]);
+
+    translate([0,0,2])rotate([10,0,0])translate([-2.5, -12, 0])cube([5, 24, 1]);
+    translate([0, 10, 6.5])rotate([10,0,0])sphere(2);
+    translate([0, -10, 3])rotate([10,0,0])sphere(2);
+
+};