BLD: Rework to use conda

.github/workflows/build_pkg.yml

@@ -1,18 +1,24 @@
 name: "Build d-SEAMS"
 on: [push, pull_request]
+defaults:
+  run:
+    shell: bash -l {0}
 jobs:
   build_pkg:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.3.4
-    - uses: cachix/install-nix-action@v12
+    - uses: actions/checkout@v2
+    - name: Install Conda environment with Micromamba
+      uses: mamba-org/provision-with-micromamba@main
       with:
-        nix_path: nixpkgs=channel:nixos-unstable
-    - uses: cachix/cachix-action@v8
-      with:
-        name: dseams
-        signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
-        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-    - run: nix-env -if .
-    - run: yodaStruct -c lua_inputs/config.yml
-    - run: echo OK
+        environment-file: environment.yml
+        environment-name: dseams
+    - name: Build and Install yodaStruct
+      run: |
+        mkdir build
+        cd build
+        cmake -DCMAKE_BUILD_TYPE=Release  -DCMAKE_INSTALL_PREFIX:PATH=$CONDA_PREFIX ../
+        make -j$(nproc)
+        make install
+    - name: Test installed yodaStruct
+      run: yodaStruct -c lua_inputs/config.yml