chore: add CI (#1)

Author: TomAFrench

.github/NIGHTLY_CANARY_DIED.md

@@ -0,0 +1,8 @@
+---
+title: "Tests fail on latest Nargo nightly release"
+assignees: TomAFrench
+---
+
+The tests on this Noir project have started failing when using the latest nightly release of the Noir compiler. This likely means that there have been breaking changes for which this project needs to be updated to take into account.
+
+Check the [{{env.WORKFLOW_NAME}}]({{env.WORKFLOW_URL}}) workflow for details.

.github/workflows/nightly-canary.yml

@@ -0,0 +1,43 @@
+name: Noir Nightly Canary
+
+on:
+  schedule:
+    # Run a check at 9 AM UTC
+    - cron: "0 9 * * *"
+
+env:
+  CARGO_TERM_COLOR: always
+
+permissions:
+  issues: write
+
+jobs:
+  test:
+    name: Test on Nargo ${{matrix.toolchain}}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Install Nargo
+        uses: noir-lang/[email protected]
+        with:
+          toolchain: nightly
+
+      - name: Run Noir tests
+        run: nargo test
+
+      - name: Run formatter
+        run: nargo fmt --check
+
+      - name: Alert on dead links
+        uses: JasonEtco/create-an-issue@v2
+        if: ${{ failure() }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          WORKFLOW_NAME: ${{ github.workflow }}
+          WORKFLOW_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+        with:
+          update_existing: true
+          filename: .github/NIGHTLY_CANARY_DIED.md
+      

.github/workflows/test.yml

@@ -0,0 +1,44 @@
+name: Noir tests
+
+on:
+  push:
+   branches:
+    - main
+  pull_request:
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test:
+    name: Test on Nargo ${{matrix.toolchain}}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        toolchain: [nightly, 0.32.0]
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Install Nargo
+        uses: noir-lang/[email protected]
+        with:
+          toolchain: ${{ matrix.toolchain }}
+
+      - name: Run Noir tests
+        run: nargo test
+
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Install Nargo
+        uses: noir-lang/[email protected]
+        with:
+          toolchain: 0.32.0
+
+      - name: Run formatter
+        run: nargo fmt --check

.gitignore

@@ -0,0 +1 @@
+target

info.sh

@@ -372,7 +372,7 @@ global PATH_LOOKUP: [[bool; 5]; 32] = [
 unconstrained fn __slice_field(f: Field, num_bytes: Field) -> [Field; 5] {
     let head_path = PATH_LOOKUP[num_bytes];
     let bytes = f.to_be_bytes(32);
-    let bytes = bytes.map(|b| b as Field);
+    let bytes = bytes.map(|b: u8| b as Field);
 
     let mut chunks: [Field; 5] = [0; 5];
     let mut head_ptr = 1;

out.txt

@@ -1020,4 +1020,4 @@ mod JSON16kb {
             self.inner.get_keys_at_root()
         }
     }
-}
+}