From 00c38a514020ec7a465842383a69f910fba7bfb7 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Thu, 11 Sep 2025 13:56:19 -0400
Subject: [PATCH 01/16] test

---
 .github/workflows/ios_sentry_upload_pr.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index 277999f5..d9363d38 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -73,4 +73,7 @@ jobs:
            --head-ref ${{ github.head_ref }} \
            --base-ref ${{ github.base_ref }} \
            --pr-number ${{ github.event.number }} \
-           --build-configuration Release
\ No newline at end of file
+           --build-configuration Release
+
+      - name: test
+        run: echo "test"
\ No newline at end of file

From 09c5e1d1328cdeb7f31e75682668d1639545add6 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Thu, 11 Sep 2025 14:19:20 -0400
Subject: [PATCH 02/16] strip

---
 .github/workflows/ios_sentry_upload_pr.yml | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index d9363d38..4d5d9fb0 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -55,6 +55,33 @@ jobs:
           CONFIGURATION: Release
           EMERGE_BUILD_TYPE: pull-request
 
+      - name: Strip asset catalogs from XCArchive
+        run: |
+          echo "Finding and thinning asset catalogs in XCArchive..."
+          XCARCHIVE_PATH='./build/HackerNews.xcarchive'
+
+          # Check if XCArchive exists
+          if [ ! -d "$XCARCHIVE_PATH" ]; then
+            echo "Error: XCArchive not found at $XCARCHIVE_PATH"
+            exit 1
+          fi
+
+          # Look for asset catalogs in the Products directory
+          find "$XCARCHIVE_PATH" -name "*.car" -type f | while read -r car_file; do
+            echo "Found asset catalog: $car_file"
+            # Create backup of original
+            cp "$car_file" "${car_file}.backup"
+            # Thin the asset catalog using assetutil
+            assetutil -i "phone" -s "3" -p "P3" -M "4" -g "MTL6,1" -r "13.0" "$car_file" -o "$car_file"
+            if [ $? -eq 0 ]; then
+              echo "Successfully thinned: $car_file"
+              rm "${car_file}.backup"
+            else
+              echo "Failed to thin: $car_file, restoring backup"
+              mv "${car_file}.backup" "$car_file"
+            fi
+          done
+
       - name: Upload iOS size analysis binary to Sentry
         run: |
           sentry-cli \

From 4693d780c7d224d0fb399977e8a6b503c0ae6261 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Thu, 11 Sep 2025 17:10:31 -0400
Subject: [PATCH 03/16] bump

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

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index 4d5d9fb0..e91ad7e6 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -103,4 +103,4 @@ jobs:
            --build-configuration Release
 
       - name: test
-        run: echo "test"
\ No newline at end of file
+        run: echo "testt"
\ No newline at end of file

From 9a5a5c48100f1107ffbf97200beee794e041095b Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 17:54:18 -0400
Subject: [PATCH 04/16] test

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

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index e91ad7e6..e08c8ca4 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -19,6 +19,9 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: test
+        run: echo $(git merge-base --fork-point ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})"
+
       - name: Select Xcode version
         run: sudo xcode-select -s '/Applications/Xcode_16.4.app/Contents/Developer'
 
@@ -100,7 +103,4 @@ jobs:
            --head-ref ${{ github.head_ref }} \
            --base-ref ${{ github.base_ref }} \
            --pr-number ${{ github.event.number }} \
-           --build-configuration Release
-
-      - name: test
-        run: echo "testt"
\ No newline at end of file
+           --build-configuration Release
\ No newline at end of file

From d8d0a68b970907a6076d4fa5309688c8a3643a9f Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 17:56:27 -0400
Subject: [PATCH 05/16] test

---
 .github/workflows/ios_sentry_upload_pr.yml | 85 +---------------------
 1 file changed, 1 insertion(+), 84 deletions(-)

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index e08c8ca4..246b99c2 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-15
+    runs-on: ubuntu-latest
 
     defaults:
       run:
@@ -21,86 +21,3 @@ jobs:
 
       - name: test
         run: echo $(git merge-base --fork-point ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})"
-
-      - name: Select Xcode version
-        run: sudo xcode-select -s '/Applications/Xcode_16.4.app/Contents/Developer'
-
-      - name: Set up Ruby env
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 3.1.4
-          bundler-cache: true
-
-      - name: Install Sentry CLI
-        run: |
-          curl -L -o sentry-cli https://github.com/getsentry/sentry-cli/releases/download/2.53.0-alpha/sentry-cli-Darwin-universal
-          chmod +x sentry-cli
-          sudo mv sentry-cli /usr/local/bin/
-
-      - name: Setup gems
-        run: exec ../.github/scripts/ios/setup.sh
-
-      - name: Decode signing certificate into a file
-        env:
-          CERTIFICATE_BASE64: ${{ secrets.IOS_DIST_SIGNING_KEY_BASE64 }}
-        run: |
-          echo $CERTIFICATE_BASE64 | base64 --decode > signing-cert.p12
-
-      - name: Build XCArchive
-        run: bundle exec fastlane ios build_only
-        env:
-          ASC_KEY_ID: ${{ secrets.ASC_KEY_ID }}
-          ASC_ISSUER_ID: ${{ secrets.ASC_ISSUER_ID }}
-          ASC_KEY: ${{ secrets.ASC_PRIVATE_KEY }}
-          SIGNING_KEY_PASSWORD: ${{ secrets.IOS_DIST_SIGNING_KEY_PASSWORD }}
-          SIGNING_KEY_FILE_PATH: signing-cert.p12
-          EMERGE_API_TOKEN: ${{ secrets.EMERGE_API_KEY }}
-          CONFIGURATION: Release
-          EMERGE_BUILD_TYPE: pull-request
-
-      - name: Strip asset catalogs from XCArchive
-        run: |
-          echo "Finding and thinning asset catalogs in XCArchive..."
-          XCARCHIVE_PATH='./build/HackerNews.xcarchive'
-
-          # Check if XCArchive exists
-          if [ ! -d "$XCARCHIVE_PATH" ]; then
-            echo "Error: XCArchive not found at $XCARCHIVE_PATH"
-            exit 1
-          fi
-
-          # Look for asset catalogs in the Products directory
-          find "$XCARCHIVE_PATH" -name "*.car" -type f | while read -r car_file; do
-            echo "Found asset catalog: $car_file"
-            # Create backup of original
-            cp "$car_file" "${car_file}.backup"
-            # Thin the asset catalog using assetutil
-            assetutil -i "phone" -s "3" -p "P3" -M "4" -g "MTL6,1" -r "13.0" "$car_file" -o "$car_file"
-            if [ $? -eq 0 ]; then
-              echo "Successfully thinned: $car_file"
-              rm "${car_file}.backup"
-            else
-              echo "Failed to thin: $car_file, restoring backup"
-              mv "${car_file}.backup" "$car_file"
-            fi
-          done
-
-      - name: Upload iOS size analysis binary to Sentry
-        run: |
-          sentry-cli \
-           --log-level=debug \
-           --auth-token ${{ secrets.SENTRY_SENTRY_AUTH_TOKEN }} \
-           build \
-           upload \
-           ./build/HackerNews.xcarchive \
-           --org sentry \
-           --project launchpad-test-ios \
-           --head-sha ${{ github.event.pull_request.head.sha }} \
-           --base-sha ${{ github.event.pull_request.base.sha }} \
-           --vcs-provider github \
-           --head-repo-name ${{ github.repository }} \
-           --base-repo-name ${{ github.repository }} \
-           --head-ref ${{ github.head_ref }} \
-           --base-ref ${{ github.base_ref }} \
-           --pr-number ${{ github.event.number }} \
-           --build-configuration Release
\ No newline at end of file

From 2234777911616223e72d80f651fc1aa5076dd64c Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 17:57:29 -0400
Subject: [PATCH 06/16] test

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

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index 246b99c2..a024fd85 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -20,4 +20,4 @@ jobs:
           fetch-depth: 0
 
       - name: test
-        run: echo $(git merge-base --fork-point ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})"
+        run: echo $(git merge-base --fork-point ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})

From 1123a9c69665f4f7e17089b63deb0ff847a2df88 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 17:58:34 -0400
Subject: [PATCH 07/16] oops

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

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index a024fd85..55102b10 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -20,4 +20,4 @@ jobs:
           fetch-depth: 0
 
       - name: test
-        run: echo $(git merge-base --fork-point ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})
+        run: echo $(git merge-base --fork-point ${{ github.event.pull_request.base.ref }} ${{ github.event.pull_request.head.ref }})

From 295b8cdb9496ca7a4d01a94b3382721a323b85b3 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 17:59:45 -0400
Subject: [PATCH 08/16] test

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

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index 55102b10..f7e7cebe 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -20,4 +20,4 @@ jobs:
           fetch-depth: 0
 
       - name: test
-        run: echo $(git merge-base --fork-point ${{ github.event.pull_request.base.ref }} ${{ github.event.pull_request.head.ref }})
+        run: echo $(git merge-base ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})

From 69df977c796f81cc682d313f1ee34661f48e0a3a Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 18:01:10 -0400
Subject: [PATCH 09/16] test

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

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index f7e7cebe..ba7f2fcb 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -20,4 +20,4 @@ jobs:
           fetch-depth: 0
 
       - name: test
-        run: echo $(git merge-base ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})
+        run: echo $(git merge-base ${{ github.event.pull_request.base.ref }} ${{ github.event.pull_request.head.ref }})

From 508fa443342adfcacdb61561d98d64f564dc7ae0 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 18:08:27 -0400
Subject: [PATCH 10/16] test

---
 .github/workflows/ios_sentry_upload_pr.yml | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index ba7f2fcb..a5516ff1 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -8,16 +8,26 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-
     defaults:
       run:
         working-directory: ./ios
 
     steps:
-      - name: Checkout
+      - name: Checkout PR HEAD (full history, but graph-only for speed)
         uses: actions/checkout@v5
         with:
           fetch-depth: 0
+          filter: blob:none
+
+      - name: Fetch base branch tip
+        run: |
+          git -c protocol.version=2 fetch --no-tags --prune --filter=blob:none origin \
+            "+refs/heads/${{ github.base_ref }}:refs/remotes/origin/${{ github.base_ref }}"
 
-      - name: test
-        run: echo $(git merge-base ${{ github.event.pull_request.base.ref }} ${{ github.event.pull_request.head.ref }})
+      - name: Compute merge-base (BASE_SHA)
+        run: |
+          set -euo pipefail
+          BASE_REF="origin/${{ github.base_ref }}"
+          BASE_SHA="$(git merge-base --fork-point "$BASE_REF" HEAD 2>/dev/null || git merge-base HEAD "$BASE_REF")"
+          echo "BASE_SHA=$BASE_SHA"
+          echo "BASE_SHA=$BASE_SHA" >> "$GITHUB_ENV"

From 815971bb39235ac74ea9afcb6db6e99335ecb7c6 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 18:08:47 -0400
Subject: [PATCH 11/16] depth

---
 .github/workflows/ios_sentry_upload_pr.yml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index a5516ff1..5f7e58fb 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -16,8 +16,7 @@ jobs:
       - name: Checkout PR HEAD (full history, but graph-only for speed)
         uses: actions/checkout@v5
         with:
-          fetch-depth: 0
-          filter: blob:none
+          fetch-depth: 2
 
       - name: Fetch base branch tip
         run: |

From 20f570309a7ba00a1ebea7eb693b1be55ccadf5c Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 18:12:47 -0400
Subject: [PATCH 12/16] test

---
 .github/workflows/ios_sentry_upload_pr.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index 5f7e58fb..873b57be 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -13,10 +13,11 @@ jobs:
         working-directory: ./ios
 
     steps:
-      - name: Checkout PR HEAD (full history, but graph-only for speed)
+      - name: Checkout PR HEAD
         uses: actions/checkout@v5
         with:
           fetch-depth: 2
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Fetch base branch tip
         run: |

From bb4530998b1c47c2683f7825a10415bf01276d9d Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 18:14:44 -0400
Subject: [PATCH 13/16] test

---
 .github/workflows/ios_sentry_upload_pr.yml | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index 873b57be..1449f974 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -23,11 +23,29 @@ jobs:
         run: |
           git -c protocol.version=2 fetch --no-tags --prune --filter=blob:none origin \
             "+refs/heads/${{ github.base_ref }}:refs/remotes/origin/${{ github.base_ref }}"
+          git show -s --oneline "origin/${{ github.base_ref }}"
 
       - name: Compute merge-base (BASE_SHA)
+        shell: bash
         run: |
-          set -euo pipefail
+          # Be strict about failures, but avoid -u (unbound var) because we build BASE_SHA progressively
+          set -e -o pipefail
+
           BASE_REF="origin/${{ github.base_ref }}"
-          BASE_SHA="$(git merge-base --fork-point "$BASE_REF" HEAD 2>/dev/null || git merge-base HEAD "$BASE_REF")"
+
+          echo "HEAD commit:"
+          git show -s --oneline HEAD
+          echo "Base ref:"
+          git show -s --oneline "$BASE_REF" || { echo "Missing $BASE_REF"; exit 1; }
+
+          # Try fork-point first; if it fails or is empty, fall back to plain merge-base
+          BASE_SHA=""
+          if BASE_SHA=$(git merge-base --fork-point "$BASE_REF" HEAD 2>/dev/null); then
+            :
+          fi
+          if [[ -z "$BASE_SHA" ]]; then
+            BASE_SHA=$(git merge-base HEAD "$BASE_REF")
+          fi
+
           echo "BASE_SHA=$BASE_SHA"
           echo "BASE_SHA=$BASE_SHA" >> "$GITHUB_ENV"

From 8498c4c8c2c432efa69ffba190cd6a9b3f4550d0 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 18:16:30 -0400
Subject: [PATCH 14/16] depth

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

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index 1449f974..5ec4e2e5 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Checkout PR HEAD
         uses: actions/checkout@v5
         with:
-          fetch-depth: 2
+          fetch-depth: 0
           ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Fetch base branch tip

From cccf0915e798cbdbe088e36d7ef6b9f767066d25 Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 18:18:17 -0400
Subject: [PATCH 15/16] test

---
 .github/workflows/ios_sentry_upload_pr.yml | 19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index 5ec4e2e5..f05f8253 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -28,24 +28,7 @@ jobs:
       - name: Compute merge-base (BASE_SHA)
         shell: bash
         run: |
-          # Be strict about failures, but avoid -u (unbound var) because we build BASE_SHA progressively
           set -e -o pipefail
-
           BASE_REF="origin/${{ github.base_ref }}"
-
-          echo "HEAD commit:"
-          git show -s --oneline HEAD
-          echo "Base ref:"
-          git show -s --oneline "$BASE_REF" || { echo "Missing $BASE_REF"; exit 1; }
-
-          # Try fork-point first; if it fails or is empty, fall back to plain merge-base
-          BASE_SHA=""
-          if BASE_SHA=$(git merge-base --fork-point "$BASE_REF" HEAD 2>/dev/null); then
-            :
-          fi
-          if [[ -z "$BASE_SHA" ]]; then
-            BASE_SHA=$(git merge-base HEAD "$BASE_REF")
-          fi
-
+          BASE_SHA=$(git merge-base --fork-point "$BASE_REF" HEAD 2>/dev/null)
           echo "BASE_SHA=$BASE_SHA"
-          echo "BASE_SHA=$BASE_SHA" >> "$GITHUB_ENV"

From c56c5b52b857fdf97c55e567b7a436321dd8120e Mon Sep 17 00:00:00 2001
From: Trevor Elkins <trevor@emergetools.com>
Date: Fri, 12 Sep 2025 18:18:57 -0400
Subject: [PATCH 16/16] no fork

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

diff --git a/.github/workflows/ios_sentry_upload_pr.yml b/.github/workflows/ios_sentry_upload_pr.yml
index f05f8253..46c50e5c 100644
--- a/.github/workflows/ios_sentry_upload_pr.yml
+++ b/.github/workflows/ios_sentry_upload_pr.yml
@@ -30,5 +30,5 @@ jobs:
         run: |
           set -e -o pipefail
           BASE_REF="origin/${{ github.base_ref }}"
-          BASE_SHA=$(git merge-base --fork-point "$BASE_REF" HEAD 2>/dev/null)
+          BASE_SHA=$(git merge-base "$BASE_REF" HEAD 2>/dev/null)
           echo "BASE_SHA=$BASE_SHA"