From abfd2d5e37cdc8938862122825eba4824d62e6f4 Mon Sep 17 00:00:00 2001
From: Agustin Borgna <agustin.borgna@quantinuum.com>
Date: Tue, 19 Mar 2024 10:40:06 +0000
Subject: [PATCH] Add codecov flags to split coverage of subprojects

---
 .github/workflows/ci-py.yml |  1 +
 .github/workflows/ci-rs.yml |  4 ++--
 codecov.yml                 | 25 +++++++++++++++++++++++++
 3 files changed, 28 insertions(+), 2 deletions(-)
 create mode 100644 codecov.yml

diff --git a/.github/workflows/ci-py.yml b/.github/workflows/ci-py.yml
index 434ae876b..1f8f4baeb 100644
--- a/.github/workflows/ci-py.yml
+++ b/.github/workflows/ci-py.yml
@@ -101,4 +101,5 @@ jobs:
         with:
           files: coverage.xml
           name: python
+          flags: python
           token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.github/workflows/ci-rs.yml b/.github/workflows/ci-rs.yml
index c84b89bbd..1048a795c 100644
--- a/.github/workflows/ci-rs.yml
+++ b/.github/workflows/ci-rs.yml
@@ -138,5 +138,5 @@ jobs:
         with:
           files: coverage.json
           name: rust
-        env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+          flags: rust
+          token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 000000000..aec1d6163
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,25 @@
+# Codecov coverage report configuration
+
+# Coverage report
+# Do not fail if the coverage is not met
+coverage:
+  status:
+    patch:
+      default:
+        informational: false
+        only_pulls: true
+    project:
+      default:
+        informational: true
+
+# Ignore tests and binaries
+ignore:
+  - "quantinuum-hugr-py/tests"
+
+# Coverage groups config
+flag_management:
+  default_rules: # the rules that will be followed for any flag added, generally
+    # Use previous coverage if one is not available for the current commit.
+    #
+    # (E.g. if the PR doesn't modify a subproject, we don't submit a coverage report for it.)
+    carryforward: true