Use pixi for native dependency management on CI (#177)

* try pixi on ci

* add to path

* add linux-x64

* set gdal path in ci

* Set GEOS paths

* set pkg config path

.github/workflows/ci.yml

@@ -22,24 +22,31 @@ jobs:
 
       - uses: Swatinem/rust-cache@v2
 
-      - name: Cargo fmt
-        run: cargo fmt --all -- --check
-
-      # Note not sure why this is needed
-      - name: Install protobuf
+      - name: Install Pixi
         run: |
-          sudo apt-get install libprotobuf-dev protobuf-compiler
+          curl -fsSL https://pixi.sh/install.sh | bash
+          echo "$HOME/.pixi/bin" >> $GITHUB_PATH
+          echo "GDAL_HOME=$(pwd)/build/.pixi/env" >> "$GITHUB_ENV"
+          echo "LD_LIBRARY_PATH=$(pwd)/build/.pixi/env/lib" >> "$GITHUB_ENV"
+          echo "GEOS_LIB_DIR=$(pwd)/build/.pixi/env/lib" >> "$GITHUB_ENV"
+          echo "GEOS_VERSION=3.12.0" >> "$GITHUB_ENV"
+          echo "PKG_CONFIG_PATH=$(pwd)/build/.pixi/env/lib/pkgconfig" >> "$GITHUB_ENV"
+
+      - name: Install build requirements
+        run: |
+          cd build
+          pixi install
 
-      - run: sudo apt install libgeos-dev
+      - name: Cargo fmt
+        run: cargo fmt --all -- --check
 
-      # Don't use --all-features as we don't have GDAL 3.6 available in CI
       - name: "clippy --all"
-        run: cargo clippy --all --features geos --features geozero --tests -- -D warnings
+        run: cargo clippy --all --all-features --tests -- -D warnings
 
       - name: "cargo check"
-        run: cargo check --all --features geos --features geozero
+        run: cargo check --all --all-features
 
       - name: "cargo test"
         run: |
           cargo test --all
-          cargo test --all --features geos --features geozero
+          cargo test --all --all-features

build/.gitattributes

@@ -0,0 +1,2 @@
+# GitHub syntax highlighting
+pixi.lock linguist-language=YAML

build/.gitignore

@@ -0,0 +1,2 @@
+# pixi environments
+.pixi