From 7bdfd2a934dc8cdad851c68065d42075124c4933 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Thu, 24 Jul 2025 16:11:58 +0200
Subject: [PATCH 01/17] Present code-coverage input in PRs

---
 .github/workflows/haskell-ci.yml     | 106 ++++++++++++++++++++++++---
 .gitignore                           |   1 +
 scripts/generate-coverage-comment.sh |   4 +
 3 files changed, 100 insertions(+), 11 deletions(-)
 create mode 100755 scripts/generate-coverage-comment.sh

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 2e71619..c1f646e 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -1,5 +1,9 @@
 name: Haskell-CI
 
+permissions:
+  contents: read
+  pull-requests: write
+
 on:
   push:
     branches:
@@ -16,30 +20,110 @@ concurrency:
 
 jobs:
   linux:
-    name: Haskell-CI - Linux - ${{ matrix.ghc-version }}
+    name: Haskell-CI - ${{ matrix.ghc-version }} - ${{ matrix.ref }}
 
     strategy:
       matrix:
-        ghc-version: [latest, 9.12, "9.10", 9.8, 9.6]
-        os: [ubuntu-24.04]
+        ghc-version: ["9.12", "9.10", "9.8", "9.6"]
+        ref: ["${{ github.head_ref }}"]
+        include:
+          - ghc-version: "9.12"
+            ref: master
       fail-fast: false
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: ${{ matrix.ref }}
+
       - uses: haskell-actions/setup@v2
         with:
           ghc-version: ${{matrix.ghc-version}}
-      - uses: actions/cache/restore@v4
+
+      - uses: actions/cache@v4
         with:
-          key: ${{ matrix.os }}-${{ matrix.ghc-version }}-${{ github.sha }}
-          path: ~/.cabal/store
-          restore-keys: ${{ matrix.os }}-${{ matrix.ghc-version }}-
+          key: ${{ matrix.ghc-version }}-${{ matrix.ref }}
+          path: |
+            ~/.cabal/store
+            dist-newstyle
+            .hpc
+          restore-keys: ${{ matrix.ghc-version }}-
+
+      - if: ${{ github.event.pull_request }}
+        run: |
+          cat <<EOF >>cabal.project.local
+          program-options
+            ghc-options: -fhpc
+          EOF
+
       - run: cabal build all
       - run: cabal test all
       - run: cabal haddock all
-      - uses: actions/cache/save@v4
+
+      # To get the right version of `generate-coverage-comment.sh`
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.head_ref }}
+          sparse-checkout:
+            scripts
+          clean: false
+
+      - if: ${{ github.event.pull_request }}
+        run: ./scripts/generate-coverage-comment.sh constrained.tix | tee coverage-report-${{matrix.ref}}.md
+
+      - name: Upload coverage report
+        if: ${{ github.event.pull_request }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: constrained-${{matrix.ref}}-${{matrix.ghc-version}}-coverage
+          path: coverage-report-${{matrix.ref}}.md
+          if-no-files-found: error
+          compression-level: 0
+          retention-days: 1
+
+  report:
+    name: Generate coverage comment
+
+    if: github.event.pull_request
+
+    needs: linux
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Download coverage report
+        uses: actions/download-artifact@v4
+        with:
+          pattern: 'constrained-${{github.head_ref}}-9.12-coverage'
+          merge-multiple: true
+
+      - name: Download coverage report
+        uses: actions/download-artifact@v4
+        with:
+          pattern: 'constrained-master-9.12-coverage'
+          merge-multiple: true
+
+      - run: |
+          cat coverage-report-${{github.head_ref}}.md > coverage-report.md
+          echo "# On master" >> coverage-report.md
+          cat coverage-report-master.md >> coverage-report.md
+          cat coverage-report.md
+
+
+      - name: Find Comment
+        uses: peter-evans/find-comment@v3
+        id: fc
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          comment-author: 'github-actions[bot]'
+          body-includes: "expressions used"
+
+      - name: Create or update comment
+        uses: peter-evans/create-or-update-comment@v4
         with:
-          key: ${{ matrix.os }}-${{ matrix.ghc-version }}-${{ github.sha }}
-          path: ~/.cabal/store
+          comment-id: ${{ steps.fc.outputs.comment-id }}
+          issue-number: ${{ github.event.pull_request.number }}
+          body-path: coverage-report.md
+          edit-mode: replace
diff --git a/.gitignore b/.gitignore
index ff36d4b..3183668 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,4 @@ cabal.project.local~
 .HTF/
 .ghc.environment.*
 *.*.sw*
+*.tix
diff --git a/scripts/generate-coverage-comment.sh b/scripts/generate-coverage-comment.sh
new file mode 100755
index 0000000..1a68d6e
--- /dev/null
+++ b/scripts/generate-coverage-comment.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+echo "# Coverage report"
+hpc report "$1" | awk '{sub(/^[ \t]*/, "&- "); sub(/^ /, ""); print}'

From 97e763e2bf723d654a87e9bd93a80dda712b198d Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <MaximilianAlgehed@users.noreply.github.com>
Date: Tue, 16 Sep 2025 17:56:53 +0200
Subject: [PATCH 02/17] Update .github/workflows/haskell-ci.yml

Co-authored-by: Neil Mayhew <neil@mayhew.name>
---
 .github/workflows/haskell-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index c1f646e..28f60c9 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -99,7 +99,7 @@ jobs:
           pattern: 'constrained-${{github.head_ref}}-9.12-coverage'
           merge-multiple: true
 
-      - name: Download coverage report
+      - name: Download coverage report from `master`
         uses: actions/download-artifact@v4
         with:
           pattern: 'constrained-master-9.12-coverage'

From 1de24d278d8b24f6517551ba2e0b692ea6c94690 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <MaximilianAlgehed@users.noreply.github.com>
Date: Tue, 16 Sep 2025 17:57:23 +0200
Subject: [PATCH 03/17] Update .github/workflows/haskell-ci.yml

Co-authored-by: Neil Mayhew <neil@mayhew.name>
---
 .github/workflows/haskell-ci.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 28f60c9..2c69bba 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -111,7 +111,6 @@ jobs:
           cat coverage-report-master.md >> coverage-report.md
           cat coverage-report.md
 
-
       - name: Find Comment
         uses: peter-evans/find-comment@v3
         id: fc

From e9dea9095b3c205abf3edf14bdda76a412ee4ce4 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:05:30 +0200
Subject: [PATCH 04/17] wip

---
 .github/workflows/haskell-ci.yml | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 2c69bba..dd6a0b2 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -14,6 +14,9 @@ on:
   schedule:
     - cron: 0 0 * * *
 
+env:
+  latest_ghc: "9.12"
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
@@ -24,10 +27,10 @@ jobs:
 
     strategy:
       matrix:
-        ghc-version: ["9.12", "9.10", "9.8", "9.6"]
+        ghc-version: ["${{ env.latest_ghc }}", "9.10", "9.8", "9.6"]
         ref: ["${{ github.head_ref }}"]
         include:
-          - ghc-version: "9.12"
+          - ghc-version: ${{ env.latest_ghc }}
             ref: master
       fail-fast: false
 

From 8c1d7cf1cbdf2232ce569d8221e49a847fb56c6a Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:06:24 +0200
Subject: [PATCH 05/17] wip

---
 .github/workflows/haskell-ci.yml | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index dd6a0b2..2c69bba 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -14,9 +14,6 @@ on:
   schedule:
     - cron: 0 0 * * *
 
-env:
-  latest_ghc: "9.12"
-
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
@@ -27,10 +24,10 @@ jobs:
 
     strategy:
       matrix:
-        ghc-version: ["${{ env.latest_ghc }}", "9.10", "9.8", "9.6"]
+        ghc-version: ["9.12", "9.10", "9.8", "9.6"]
         ref: ["${{ github.head_ref }}"]
         include:
-          - ghc-version: ${{ env.latest_ghc }}
+          - ghc-version: "9.12"
             ref: master
       fail-fast: false
 

From 4ef5507ffd23d0a6caa6dd3ba90b8b56df9469c2 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:12:48 +0200
Subject: [PATCH 06/17] more documentation

---
 .github/workflows/haskell-ci.yml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 2c69bba..3797343 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -26,6 +26,9 @@ jobs:
       matrix:
         ghc-version: ["9.12", "9.10", "9.8", "9.6"]
         ref: ["${{ github.head_ref }}"]
+        # This gives us one run for `master` with ghc version 9.12.
+        # We use this run to give us "up to date" coverage data that
+        # we can compare to.
         include:
           - ghc-version: "9.12"
             ref: master
@@ -62,7 +65,9 @@ jobs:
       - run: cabal test all
       - run: cabal haddock all
 
-      # To get the right version of `generate-coverage-comment.sh`
+      # To get the right version of `generate-coverage-comment.sh`. I.e. the
+      # one in this PR.  This is important in order to get the same
+      # coverage-counting logic on the PR as on master.
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.head_ref }}

From 18c7295c26605b658692da554827f6d4c0a1a661 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:19:36 +0200
Subject: [PATCH 07/17] try conditioning coverage

---
 .github/workflows/haskell-ci.yml | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 3797343..7a461f5 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -14,6 +14,9 @@ on:
   schedule:
     - cron: 0 0 * * *
 
+env:
+  latest_ghc: "9.12"
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
@@ -54,7 +57,7 @@ jobs:
             .hpc
           restore-keys: ${{ matrix.ghc-version }}-
 
-      - if: ${{ github.event.pull_request }}
+      - if: ${{ github.event.pull_request and matrix.ghc_version == env.latest_ghc }}
         run: |
           cat <<EOF >>cabal.project.local
           program-options
@@ -69,20 +72,21 @@ jobs:
       # one in this PR.  This is important in order to get the same
       # coverage-counting logic on the PR as on master.
       - uses: actions/checkout@v4
+        if: ${{ github.event.pull_request and matrix.ghc_version == env.latest_ghc }}
         with:
           ref: ${{ github.head_ref }}
           sparse-checkout:
             scripts
           clean: false
 
-      - if: ${{ github.event.pull_request }}
+      - if: ${{ github.event.pull_request and matrix.ghc_version == env.latest_ghc }}
         run: ./scripts/generate-coverage-comment.sh constrained.tix | tee coverage-report-${{matrix.ref}}.md
 
       - name: Upload coverage report
-        if: ${{ github.event.pull_request }}
+        if: ${{ github.event.pull_request and matrix.ghc_version == env.latest_ghc }}
         uses: actions/upload-artifact@v4
         with:
-          name: constrained-${{matrix.ref}}-${{matrix.ghc-version}}-coverage
+          name: constrained-${{matrix.ref}}-coverage
           path: coverage-report-${{matrix.ref}}.md
           if-no-files-found: error
           compression-level: 0
@@ -101,13 +105,13 @@ jobs:
       - name: Download coverage report
         uses: actions/download-artifact@v4
         with:
-          pattern: 'constrained-${{github.head_ref}}-9.12-coverage'
+          pattern: 'constrained-${{github.head_ref}}-coverage'
           merge-multiple: true
 
       - name: Download coverage report from `master`
         uses: actions/download-artifact@v4
         with:
-          pattern: 'constrained-master-9.12-coverage'
+          pattern: 'constrained-master-coverage'
           merge-multiple: true
 
       - run: |

From d16b47fb431e86f1806390d0d4b1f86e727dc7fd Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:21:28 +0200
Subject: [PATCH 08/17] wip

---
 .github/workflows/haskell-ci.yml | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 7a461f5..ac79aee 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -39,6 +39,9 @@ jobs:
 
     runs-on: ubuntu-latest
 
+    env:
+      coverage: ${{ github.event.pull_request && matrix.ghc_version == env.latest_ghc }}
+
     steps:
       - uses: actions/checkout@v4
         with:
@@ -57,7 +60,7 @@ jobs:
             .hpc
           restore-keys: ${{ matrix.ghc-version }}-
 
-      - if: ${{ github.event.pull_request and matrix.ghc_version == env.latest_ghc }}
+      - if: ${{ env.coverage }}
         run: |
           cat <<EOF >>cabal.project.local
           program-options
@@ -72,18 +75,18 @@ jobs:
       # one in this PR.  This is important in order to get the same
       # coverage-counting logic on the PR as on master.
       - uses: actions/checkout@v4
-        if: ${{ github.event.pull_request and matrix.ghc_version == env.latest_ghc }}
+        if: ${{ env.coverage }}
         with:
           ref: ${{ github.head_ref }}
           sparse-checkout:
             scripts
           clean: false
 
-      - if: ${{ github.event.pull_request and matrix.ghc_version == env.latest_ghc }}
+      - if: ${{ env.coverage }}
         run: ./scripts/generate-coverage-comment.sh constrained.tix | tee coverage-report-${{matrix.ref}}.md
 
       - name: Upload coverage report
-        if: ${{ github.event.pull_request and matrix.ghc_version == env.latest_ghc }}
+        if: ${{ env.coverage }}
         uses: actions/upload-artifact@v4
         with:
           name: constrained-${{matrix.ref}}-coverage

From 45baea99e5b661a8f7fe63fe17d44e580e7bf40c Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:22:09 +0200
Subject: [PATCH 09/17] check coverage in env

---
 .github/workflows/haskell-ci.yml | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index ac79aee..1c8933d 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -14,9 +14,6 @@ on:
   schedule:
     - cron: 0 0 * * *
 
-env:
-  latest_ghc: "9.12"
-
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
@@ -40,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
 
     env:
-      coverage: ${{ github.event.pull_request && matrix.ghc_version == env.latest_ghc }}
+      coverage: ${{ github.event.pull_request && matrix.ghc_version == "9.12" }}
 
     steps:
       - uses: actions/checkout@v4

From 6572bf7795b6396cba1c70d3f7b2b657e4df9abd Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:24:00 +0200
Subject: [PATCH 10/17] wip

---
 .github/workflows/haskell-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 1c8933d..d15c835 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
 
     env:
-      coverage: ${{ github.event.pull_request && matrix.ghc_version == "9.12" }}
+      coverage: ${{ github.event.pull_request }} && ${{matrix.ghc_version == "9.12" }}
 
     steps:
       - uses: actions/checkout@v4

From 1aa864f6eeed103d27291749a654cd73a0020157 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:25:42 +0200
Subject: [PATCH 11/17] wip

---
 .github/workflows/haskell-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index d15c835..545cdf7 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
 
     env:
-      coverage: ${{ github.event.pull_request }} && ${{matrix.ghc_version == "9.12" }}
+      coverage: ${{ github.event.pull_request && (matrix.ghc_version == "9.12") }}
 
     steps:
       - uses: actions/checkout@v4

From fad15c604f7e5a620aef46981c6192f77d90bc5e Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:26:26 +0200
Subject: [PATCH 12/17] wip

---
 .github/workflows/haskell-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 545cdf7..37b8192 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
 
     env:
-      coverage: ${{ github.event.pull_request && (matrix.ghc_version == "9.12") }}
+      coverage: ${{ github.event.pull_request && (matrix.ghc_version == '9.12') }}
 
     steps:
       - uses: actions/checkout@v4

From 825791367b3dd4daab163bd742291842ff20552b Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:29:09 +0200
Subject: [PATCH 13/17] wip

---
 .github/workflows/haskell-ci.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 37b8192..18e3db1 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -57,7 +57,7 @@ jobs:
             .hpc
           restore-keys: ${{ matrix.ghc-version }}-
 
-      - if: ${{ env.coverage }}
+      - if: ${{ env.coverage == true }}
         run: |
           cat <<EOF >>cabal.project.local
           program-options
@@ -72,18 +72,18 @@ jobs:
       # one in this PR.  This is important in order to get the same
       # coverage-counting logic on the PR as on master.
       - uses: actions/checkout@v4
-        if: ${{ env.coverage }}
+        if: ${{ env.coverage == true }}
         with:
           ref: ${{ github.head_ref }}
           sparse-checkout:
             scripts
           clean: false
 
-      - if: ${{ env.coverage }}
+      - if: ${{ env.coverage == true }}
         run: ./scripts/generate-coverage-comment.sh constrained.tix | tee coverage-report-${{matrix.ref}}.md
 
       - name: Upload coverage report
-        if: ${{ env.coverage }}
+        if: ${{ env.coverage == true }}
         uses: actions/upload-artifact@v4
         with:
           name: constrained-${{matrix.ref}}-coverage

From 914ccdee1fb445699fa7fddc4fff09d1f212dc28 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:29:31 +0200
Subject: [PATCH 14/17] wip

---
 .github/workflows/haskell-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 18e3db1..c8c8bc5 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
 
     env:
-      coverage: ${{ github.event.pull_request && (matrix.ghc_version == '9.12') }}
+      coverage: ${{ github.event.pull_request && (matrix.ghc-version == '9.12') }}
 
     steps:
       - uses: actions/checkout@v4

From 4592c6f1d8c9f2e44db7bfda86129bb5d177a77a Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:33:25 +0200
Subject: [PATCH 15/17] wip

---
 .github/workflows/haskell-ci.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index c8c8bc5..1a9c43c 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -57,6 +57,12 @@ jobs:
             .hpc
           restore-keys: ${{ matrix.ghc-version }}-
 
+      - run: |
+          echo ${{ env.coverage }}
+          echo ${{ github.event.pull_request }}
+          echo ${{ matrix.ghc-version }}
+          echo ${{ matrix.ghc-version == '9.12' }}
+
       - if: ${{ env.coverage == true }}
         run: |
           cat <<EOF >>cabal.project.local

From cfae5ecccee1b7ca901f2c226f7e3cdf89bf2f08 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:35:26 +0200
Subject: [PATCH 16/17] wip

---
 .github/workflows/haskell-ci.yml | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 1a9c43c..7f0c4c1 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -57,13 +57,7 @@ jobs:
             .hpc
           restore-keys: ${{ matrix.ghc-version }}-
 
-      - run: |
-          echo ${{ env.coverage }}
-          echo ${{ github.event.pull_request }}
-          echo ${{ matrix.ghc-version }}
-          echo ${{ matrix.ghc-version == '9.12' }}
-
-      - if: ${{ env.coverage == true }}
+      - if: ${{ env.coverage }}
         run: |
           cat <<EOF >>cabal.project.local
           program-options
@@ -78,18 +72,18 @@ jobs:
       # one in this PR.  This is important in order to get the same
       # coverage-counting logic on the PR as on master.
       - uses: actions/checkout@v4
-        if: ${{ env.coverage == true }}
+        if: ${{ env.coverage }}
         with:
           ref: ${{ github.head_ref }}
           sparse-checkout:
             scripts
           clean: false
 
-      - if: ${{ env.coverage == true }}
+      - if: ${{ env.coverage }}
         run: ./scripts/generate-coverage-comment.sh constrained.tix | tee coverage-report-${{matrix.ref}}.md
 
       - name: Upload coverage report
-        if: ${{ env.coverage == true }}
+        if: ${{ env.coverage }}
         uses: actions/upload-artifact@v4
         with:
           name: constrained-${{matrix.ref}}-coverage

From 2d999617c017eb037a1c282c2c364b43eae61d20 Mon Sep 17 00:00:00 2001
From: Maximilian Algehed <m.algehed@gmail.com>
Date: Tue, 16 Sep 2025 18:40:11 +0200
Subject: [PATCH 17/17] fucking strings

---
 .github/workflows/haskell-ci.yml | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 7f0c4c1..ba1493b 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -57,7 +57,7 @@ jobs:
             .hpc
           restore-keys: ${{ matrix.ghc-version }}-
 
-      - if: ${{ env.coverage }}
+      - if: ${{ env.coverage == 'true' }}
         run: |
           cat <<EOF >>cabal.project.local
           program-options
@@ -66,24 +66,23 @@ jobs:
 
       - run: cabal build all
       - run: cabal test all
-      - run: cabal haddock all
 
       # To get the right version of `generate-coverage-comment.sh`. I.e. the
       # one in this PR.  This is important in order to get the same
       # coverage-counting logic on the PR as on master.
       - uses: actions/checkout@v4
-        if: ${{ env.coverage }}
+        if: ${{ env.coverage == 'true' }}
         with:
           ref: ${{ github.head_ref }}
           sparse-checkout:
             scripts
           clean: false
 
-      - if: ${{ env.coverage }}
+      - if: ${{ env.coverage == 'true' }}
         run: ./scripts/generate-coverage-comment.sh constrained.tix | tee coverage-report-${{matrix.ref}}.md
 
       - name: Upload coverage report
-        if: ${{ env.coverage }}
+        if: ${{ env.coverage == 'true' }}
         uses: actions/upload-artifact@v4
         with:
           name: constrained-${{matrix.ref}}-coverage