Switch from c2hs to hs-bindgen

.github/workflows/haskell.yml

@@ -11,51 +11,24 @@ jobs:
     name: main
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-
-      - name: Set user input permissions
-        run: sudo usermod -a -G input $USER
-
-      - name: Set up GHC
-        uses: haskell-actions/setup@v2
-        id: setup
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v30
         with:
-          ghc-version: '9.4'
-          cabal-version: '3.10'
-          cabal-update: true
-
-      - name: Install libevdev
-        run: sudo apt install -y libevdev-dev
-
-      - name: Configure the build
-        run: |
-          cabal configure --enable-tests --enable-benchmarks --disable-documentation
-          cabal build all --dry-run
-
-      - name: Restore cached dependencies
-        uses: actions/cache/restore@v3
-        id: cache
-        env:
-          key: ${{ runner.os }}-ghc-${{ steps.setup.outputs.ghc-version }}-cabal-${{ steps.setup.outputs.cabal-version }}
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+          extra_nix_config: |
+            extra-substituters = https://cache.iog.io https://cache.zw3rk.com
+            extra-trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= loony-tools:pr9m4BkM/5/eSTZlkQyRt57Jz7OMBxNSUiMC4FkcNfk=
+      - uses: cachix/cachix-action@v15
         with:
-          path: ${{ steps.setup.outputs.cabal-store }}
-          key: ${{ env.key }}-plan-${{ hashFiles('**/plan.json') }}
-          restore-keys: ${{ env.key }}-
-
-      - name: Install dependencies
-        run: cabal build all --only-dependencies
+          name: georgefst
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
-      - name: Save cached dependencies
-        uses: actions/cache/save@v3
-        if: ${{ steps.cache.outputs.cache-primary-key != steps.cache.outputs.cache-matched-key }}
-        with:
-          path: ${{ steps.setup.outputs.cabal-store }}
-          key: ${{ steps.cache.outputs.cache-primary-key }}
+      - name: Build all packages
+        run: nix build .#ci
 
-      - name: Build
-        run: cabal build all
+      # TODO work around test permissions and ARM build and
+      # - name: Run checks
+      #   run: nix flake check
 
-      - name: Run tests
-        run: |
-          cabal build test
-          sudo $(cabal list-bin test)
+      - name: Run main test with permissions
+        run: sudo $(nix build .#evdev:test:test --print-out-paths)/bin/test

.gitignore

@@ -1,3 +1,5 @@
 dist-newstyle
 .ghc.environment.*
 cabal.project.local
+result
+evdev/output

cabal.project

@@ -3,6 +3,18 @@ packages:
     evdev-streamly
     evdev-examples
 
+source-repository-package
+    type: git
+    location: https://github.com/well-typed/hs-bindgen
+    tag: 3c4af10590d0d09e825a9735e9a03d7f60914e21
+    subdir: c-expr-dsl c-expr-runtime hs-bindgen hs-bindgen-runtime
+    --sha256: UCA7w+u20+CX1XN8so76UfJkM0FKKpljOgweP2FjtS4=
+source-repository-package
+    type: git
+    location: https://github.com/well-typed/libclang
+    tag: 1054474fae403bfb52c7919680cac03d3d3d4237
+    --sha256: LTAyNMY4Vu0vPeEq2wXB0KWY4kGtqtHTRmADjLdkv78=
+
 if impl(ghc >= 9.10)
     allow-newer:
         -- deprecated - we'll replace it ASAP in favour of `OsPath`

evdev/evdev.cabal

@@ -24,9 +24,13 @@ common common
         containers ^>= {0.6.2, 0.7, 0.8},
         extra ^>= {1.6.18, 1.7, 1.8},
         filepath-bytestring ^>= {1.4.2, 1.5},
+        hs-bindgen ^>= {0.1},
+        hs-bindgen-runtime ^>= {0.1},
         monad-loops ^>= 0.4.3,
         mtl ^>= {2.2, 2.3},
         rawfilepath ^>= {1.0, 1.1},
+        template-haskell ^>= {2.21, 2.22, 2.23},
+        th-compat ^>= 0.1.7,
         time ^>= {1.9.3, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15},
         unix ^>= 2.8,
     default-language: GHC2021
@@ -48,16 +52,15 @@ library
         Evdev
         Evdev.Codes
         Evdev.Uinput
-    other-modules:
-        Evdev.LowLevel
+        Evdev.Raw
         Util
+    other-modules:
+        Evdev.Codes.Generator
     hs-source-dirs: src
     c-sources:
         src-c/evdev-hs.c
     pkgconfig-depends:
         libevdev
-    build-tool-depends:
-        c2hs:c2hs
 
 test-suite test
     import: common