From 80483475137643bdd96f92d95efde062dd4756a7 Mon Sep 17 00:00:00 2001
From: David Steiner <david_j_steiner@yahoo.co.nz>
Date: Mon, 2 Feb 2026 10:32:05 +0100
Subject: [PATCH 1/2] Only run MongoDB tests when hotfix-store-mongodb code has
 changed

---
 .github/workflows/ci.yml | 45 +++++++++++++++++++++++++++++++++++-----
 codecov.yml              | 19 +++++++++++++++++
 2 files changed, 59 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6bb3a14..2e6f92f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,19 +22,54 @@ jobs:
       - name: Run clippy (all targets and features)
         run: cargo clippy --all-targets --all-features -- -Dclippy::all -D warnings
 
-  coverage:
+  detect-changes:
     runs-on: ubuntu-latest
+    outputs:
+      mongodb: ${{ steps.filter.outputs.mongodb }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Detect path changes
+        uses: dorny/paths-filter@v3
+        id: filter
+        with:
+          filters: |
+            mongodb:
+              - 'crates/hotfix-store-mongodb/**'
+              - 'crates/hotfix-store/**'
+
+  coverage-core:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
+      - name: Generate code coverage (excluding MongoDB)
+        run: cargo llvm-cov --all-features --workspace --exclude hotfix-store-mongodb --lcov --output-path lcov.info
+      - name: Upload coverage
+        uses: codecov/codecov-action@v5
+        with:
+          fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}
+          flags: core
+          files: lcov.info
+
+  coverage-mongodb:
+    runs-on: ubuntu-latest
+    needs: detect-changes
+    if: needs.detect-changes.outputs.mongodb == 'true'
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
-      - name: Generate code coverage
-        run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
-      - name: Upload report
+      - name: Generate MongoDB coverage
+        run: cargo llvm-cov --all-features --package hotfix-store-mongodb --lcov --output-path lcov.info
+      - name: Upload MongoDB coverage
         uses: codecov/codecov-action@v5
         with:
           fail_ci_if_error: true
           token: ${{ secrets.CODECOV_TOKEN }}
-          verbose: true
+          flags: mongodb
           files: lcov.info
diff --git a/codecov.yml b/codecov.yml
index 0d5a543..5837356 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -10,3 +10,22 @@ coverage:
     project:
       default:
         target: auto
+
+flags:
+  core:
+    paths:
+      - crates/hotfix/
+      - crates/hotfix-cli/
+      - crates/hotfix-codegen/
+      - crates/hotfix-derive/
+      - crates/hotfix-dictionary/
+      - crates/hotfix-message/
+      - crates/hotfix-store/
+      - crates/hotfix-web/
+      - crates/hotfix-web-ui/
+    carryforward: true
+
+  mongodb:
+    paths:
+      - crates/hotfix-store-mongodb/
+    carryforward: true

From 4a4d0edd83f8d4897efe3c057bff84dbc10a0779 Mon Sep 17 00:00:00 2001
From: David Steiner <david_j_steiner@yahoo.co.nz>
Date: Mon, 2 Feb 2026 10:37:08 +0100
Subject: [PATCH 2/2] Dummy change to hotfix-store-mongodb to trigger tests

---
 crates/hotfix-store-mongodb/Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/hotfix-store-mongodb/Cargo.toml b/crates/hotfix-store-mongodb/Cargo.toml
index 683096e..33625d7 100644
--- a/crates/hotfix-store-mongodb/Cargo.toml
+++ b/crates/hotfix-store-mongodb/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hotfix-store-mongodb"
-description = "MongoDB message store implementation for the hotfix FIX engine"
+description = "MongoDB message store implementation for the HotFIX engine"
 version = "0.1.2"
 authors.workspace = true
 edition.workspace = true