feat: port CI from halo2curves (privacy-scaling-explorations#4)

.config/nextest.toml

@@ -0,0 +1,10 @@
+[profile.ci]
+# Print out output for failing tests as soon as they fail, and also at the end
+# of the run (for easy scrollability).
+failure-output = "immediate-final"
+# Show skipped tests in the CI output.
+status-level = "skip"
+# Do not cancel the test run on the first failure.
+fail-fast = false
+# Mark tests as slow after 5mins, kill them after 50
+slow-timeout = { period = "300s", terminate-after = 10 }

.github/workflows/ci.yml

@@ -0,0 +1,92 @@
+name: CI Check
+on:
+  merge_group:
+  pull_request:
+  push:
+    branches:
+      - main
+env:
+  CARGO_TERM_COLOR: always
+  # Disable incremental compilation.
+  #
+  # Incremental compilation is useful as part of an edit-build-test-edit cycle,
+  # as it lets the compiler avoid recompiling code that hasn't changed. However,
+  # on CI, we're not making small edits; we're almost always building the entire
+  # project from scratch. Thus, incremental compilation on CI actually
+  # introduces *additional* overhead to support making future builds
+  # faster...but no future builds will ever occur in any given CI environment.
+  #
+  # See https://matklad.github.io/2021/09/04/fast-rust-builds.html#ci-workflow
+  # for details.
+  CARGO_INCREMENTAL: 0
+  # Allow more retries for network requests in cargo (downloading crates) and
+  # rustup (installing toolchains). This should help to reduce flaky CI failures
+  # from transient network timeouts or other issues.
+  CARGO_NET_RETRY: 10
+  RUSTUP_MAX_RETRIES: 10
+  # Don't emit giant backtraces in the CI logs.
+  RUST_BACKTRACE: short
+
+# Jobs launched for a PR event cancel the ongoing one for the same workflow + PR,
+# Only retries (of the same run) for a Push event cancel the prior one.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+
+jobs:
+  test:
+    if: github.event.pull_request.draft == false
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - feature: default
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+      # use the more efficient nextest
+      - uses: taiki-e/install-action@nextest
+      - uses: Swatinem/rust-cache@v2
+      - name: Build
+        # This build will be reused by nextest,
+        # and also checks (--all-targets) that benches don't bit-rot
+        run: cargo build --release --all-targets --no-default-features --features "${{ matrix.feature }}"
+      - name: Test
+        run: |
+          cargo nextest run --profile ci --release --workspace --no-default-features --features "${{ matrix.feature }}"
+      - name: Doctests # nextest does not support doc tests
+        run: |
+          cargo test --doc
+
+  fmt:
+    if: github.event.pull_request.draft == false
+    name: Rustfmt
+    timeout-minutes: 30
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+      - uses: Swatinem/rust-cache@v2
+      - run: rustup component add rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  clippy:
+    if: github.event.pull_request.draft == false
+    name: Clippy lint checks
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          components: clippy
+      - uses: Swatinem/rust-cache@v2
+      - name: Run clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --all-targets --all-features -- -D warnings

Cargo.toml

@@ -8,10 +8,13 @@ ark-ec = "0.4.2"
 ark-ff = "0.4.2"
 ark-std = "0.4.0"
 ark-poly = "0.4.0"
-ark-crypto-primitives = { version = "^0.4.0", default-features = false, features = [ "r1cs", "sponge" ] }
+ark-crypto-primitives = { version = "^0.4.0", default-features = false, features = ["r1cs", "sponge"] }
 ark-relations = { version = "^0.4.0", default-features = false }
 ark-r1cs-std = { version = "^0.4.0", default-features = false }
-thiserror = "1.0" 
+thiserror = "1.0"
 
 [dev-dependencies]
 ark-bls12-381 = "0.4.0"
+
+[features]
+default = []

rust-toolchain

@@ -0,0 +1 @@
+1.71.0