From da6899f8b71ec3c1653e36987b14651d7c97d649 Mon Sep 17 00:00:00 2001
From: MilesCranmer <miles.cranmer@gmail.com>
Date: Wed, 3 Sep 2025 12:16:13 +0200
Subject: [PATCH] ci: switch to codecov and llvm-cov

---
 .github/codecov.yml      | 21 +++++++++++++++++++++
 .github/workflows/ci.yml | 22 ++++++++++++++++------
 2 files changed, 37 insertions(+), 6 deletions(-)
 create mode 100644 .github/codecov.yml

diff --git a/.github/codecov.yml b/.github/codecov.yml
new file mode 100644
index 0000000..6d1fd66
--- /dev/null
+++ b/.github/codecov.yml
@@ -0,0 +1,21 @@
+codecov:
+  notify:
+    require_ci_to_pass: false
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 5%
+        informational: true
+    patch:
+      default:
+        target: auto
+        threshold: 5%
+        informational: true
+
+comment:
+  layout: "reach,diff,flags,tree,betaprofiling"
+  behavior: default
+  require_changes: false
\ No newline at end of file
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 038f740..9fa2440 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,7 +47,7 @@ jobs:
         rust-version:
           - stable
     env:
-      HAS_COVERALLS_ACCESS: ${{ secrets.COVERALLS_REPO_TOKEN != '' }}
+      HAS_CODECOV_ACCESS: ${{ secrets.CODECOV_TOKEN != '' }}
     steps:
       - uses: actions/checkout@v4
         with:
@@ -57,8 +57,9 @@ jobs:
           toolchain: ${{ matrix.rust-version }}
           components: rustfmt, clippy
       - uses: Swatinem/rust-cache@v2
-      - name: Install tarpaulin
-        run: cargo install cargo-tarpaulin
+      - name: Install cargo-llvm-cov
+        if: env.HAS_CODECOV_ACCESS == 'true'
+        run: cargo install cargo-llvm-cov
       - name: Test compilation
         run: cargo check --all --all-targets
       - name: Test formatting
@@ -68,10 +69,19 @@ jobs:
       - name: Test documentation
         run: cargo doc --all --no-deps
       - name: Run tests with code coverage
-        if: ${{ env.HAS_COVERALLS_ACCESS == 'true' }}
-        run: cargo tarpaulin --release --engine llvm --follow-exec --post-test-delay 10 --coveralls ${{ secrets.COVERALLS_REPO_TOKEN }}
+        if: env.HAS_CODECOV_ACCESS == 'true'
+        run: cargo llvm-cov --all-features --workspace --codecov --output-path codecov.json
+      - name: Upload coverage to Codecov
+        if: env.HAS_CODECOV_ACCESS == 'true'
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          slug: MilesCranmer/rip2
+          files: ./codecov.json
+          fail_ci_if_error: false
+          verbose: true
       - name: Run tests
-        if: ${{ env.HAS_COVERALLS_ACCESS != 'true' }}
+        if: env.HAS_CODECOV_ACCESS != 'true'
         run: cargo test --all
 
   nix: