From acb98eff3c2b5b0181e8072b3ee35993152f6aa7 Mon Sep 17 00:00:00 2001
From: Anthony Alaribe <anthonyalaribe@gmail.com>
Date: Mon, 22 Dec 2025 22:43:25 +0100
Subject: [PATCH 1/2] ci: add weeder check for unused code detection

---
 .github/workflows/pullrequest.yml | 59 +++++++++++++++++++++++++++++--
 1 file changed, 57 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/pullrequest.yml b/.github/workflows/pullrequest.yml
index 53f520d9c..fcca80279 100644
--- a/.github/workflows/pullrequest.yml
+++ b/.github/workflows/pullrequest.yml
@@ -68,8 +68,22 @@ jobs:
       - name: Build dependencies
         run: cabal build --only-dependencies all -j4
 
-      - name: Build project
-        run: cabal build all -j4
+      - name: Build project with HIE files
+        run: cabal build all -j4 --ghc-options="-fwrite-ide-info -hiedir=.hiefiles"
+
+      - name: Upload HIE files
+        uses: actions/upload-artifact@v4
+        with:
+          name: hiefiles
+          path: .hiefiles
+          retention-days: 1
+
+      - name: Upload dist-newstyle
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist-newstyle
+          path: dist-newstyle
+          retention-days: 1
 
   test:
     name: Test ${{ matrix.test-suite }}
@@ -190,6 +204,47 @@ jobs:
           path: src/
           fail-on: warning
 
+  weeder:
+    name: Check unused code (weeder)
+    needs: build
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: haskell-actions/setup@v2
+        with:
+          ghc-version: 9.12.2
+          cabal-version: 'latest'
+
+      - name: Cache weeder
+        id: cache-weeder
+        uses: actions/cache@v4
+        with:
+          path: ~/.local/bin/weeder
+          key: weeder-2.9.0-ghc-9.12.2
+
+      - name: Install weeder
+        if: steps.cache-weeder.outputs.cache-hit != 'true'
+        run: |
+          mkdir -p ~/.local/bin
+          cabal update
+          cabal install weeder-2.9.0 --install-method=copy --installdir=$HOME/.local/bin
+
+      - name: Download HIE files
+        uses: actions/download-artifact@v4
+        with:
+          name: hiefiles
+          path: .hiefiles
+
+      - name: Download dist-newstyle
+        uses: actions/download-artifact@v4
+        with:
+          name: dist-newstyle
+          path: dist-newstyle
+
+      - name: Run weeder
+        run: ~/.local/bin/weeder --config config/weeder.toml
+
   ui-tests:
     name: UI Tests
     runs-on: ubuntu-24.04

From 9bb6a77294f6cb08deda829ac1292c9c02dd70b0 Mon Sep 17 00:00:00 2001
From: Anthony Alaribe <anthonyalaribe@gmail.com>
Date: Mon, 22 Dec 2025 23:57:23 +0100
Subject: [PATCH 2/2] fix: reduce weeder artifact size and add validation

---
 .github/workflows/pullrequest.yml | 33 ++++++++++++-------------------
 1 file changed, 13 insertions(+), 20 deletions(-)

diff --git a/.github/workflows/pullrequest.yml b/.github/workflows/pullrequest.yml
index fcca80279..e3e8f8b3c 100644
--- a/.github/workflows/pullrequest.yml
+++ b/.github/workflows/pullrequest.yml
@@ -71,18 +71,13 @@ jobs:
       - name: Build project with HIE files
         run: cabal build all -j4 --ghc-options="-fwrite-ide-info -hiedir=.hiefiles"
 
-      - name: Upload HIE files
+      - name: Upload weeder artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: hiefiles
-          path: .hiefiles
-          retention-days: 1
-
-      - name: Upload dist-newstyle
-        uses: actions/upload-artifact@v4
-        with:
-          name: dist-newstyle
-          path: dist-newstyle
+          name: weeder-artifacts
+          path: |
+            .hiefiles
+            dist-newstyle/**/*.conf
           retention-days: 1
 
   test:
@@ -230,20 +225,18 @@ jobs:
           cabal update
           cabal install weeder-2.9.0 --install-method=copy --installdir=$HOME/.local/bin
 
-      - name: Download HIE files
+      - name: Download weeder artifacts
         uses: actions/download-artifact@v4
         with:
-          name: hiefiles
-          path: .hiefiles
-
-      - name: Download dist-newstyle
-        uses: actions/download-artifact@v4
-        with:
-          name: dist-newstyle
-          path: dist-newstyle
+          name: weeder-artifacts
 
       - name: Run weeder
-        run: ~/.local/bin/weeder --config config/weeder.toml
+        run: |
+          if [ ! -d ".hiefiles" ]; then
+            echo "Error: HIE files not found"
+            exit 1
+          fi
+          ~/.local/bin/weeder --config config/weeder.toml
 
   ui-tests:
     name: UI Tests