Replace mermaid commit rendering with a table

action.yml

@@ -1,79 +1,80 @@
-name: Sync Fork
-description: Rebase a forked repository's branch on top of an upstream repository's branch.
-author: The Browser Company
-
-inputs:
-  fork_repo:
-    description: The repository to update.
-    required: false
-
-  fork_branch:
-    description: The branch to update.
-    required: true
-
-  upstream_repo:
-    description: The repository to pull changes from.
-    required: true
-
-  upstream_branch:
-    description: The branch to pull changes from.
-    required: true
-
-  upstream_host:
-    description: The upstream repository URL host, if not github.com.
-    required: false
-    default: 'github.com'
-
-  dry_run:
-    description: If true, changes are not pushed to the fork.
-    required: false
-    default: false
-
-  token:
-    description: Authentication token to use for Git commands
-    required: false
-
-runs:
-  using: composite
-  steps:
-    - uses: actions/checkout@v4
-      with:
-        repository: ${{ inputs.fork_repo }}
-        ref: ${{ inputs.fork_branch }}
-        # Fetch all commits from the fork to prevent arbitrary merge conflicts.
-        fetch-depth: 0
-        path: ${{ github.workspace }}/fork
-        token: ${{ inputs.token || github.token }}
-
-    - name: Rebase onto upstream
-      shell: pwsh
-      run: |
-        Set-StrictMode -Version 1
-
-        cd ${{ github.workspace }}/fork
-
-        git config --global user.name '${{ github.actor }}'
-        git config --global user.email '${{ github.actor }}@users.noreply.github.com'
-
-        git remote add upstream https://${{ inputs.upstream_host }}/${{ inputs.upstream_repo }}
-        git fetch upstream ${{ inputs.upstream_branch }} 
-
-        # Store the list of commits we're about to rebase as a job summary:
-        $NewCommitsFromUpstream=(git log --format="[%h] %s" --no-merges upstream/${{ inputs.upstream_branch }} ^${{ inputs.fork_branch }})
-        echo "``````mermaid" | Out-File -Append -Encoding utf8 $env:GITHUB_STEP_SUMMARY
-        echo "%%{init: { 'theme': 'default', 'gitGraph': { 'mainBranchName': '${{ inputs.upstream_repo}}/${{ inputs.upstream_branch }}', 'rotateCommitLabel': false}} }%%" | Out-File -Append -Encoding utf8 $env:GITHUB_STEP_SUMMARY
-        echo "gitGraph TB:" | Out-File -Append -Encoding utf8 $env:GITHUB_STEP_SUMMARY
-        foreach ($Commit in $NewCommitsFromUpstream) {
-          $Commit=$Commit -replace "`"","'"
-          echo "commit id: `"${Commit}`"" | Out-File -Append -Encoding utf8 $env:GITHUB_STEP_SUMMARY
-        }
-        echo "``````" | Out-File -Append -Encoding utf8 $env:GITHUB_STEP_SUMMARY
-
-        git checkout ${{ inputs.fork_branch }}
-        git rebase upstream/${{ inputs.upstream_branch }}
-
-    - name: Push changes
-      if: ${{ inputs.dry_run == 'false' || inputs.dry_run == false }}
-      shell: pwsh
-      run: git -C ${{ github.workspace }}/fork push origin ${{ inputs.fork_branch }} -f
-
+name: Sync Fork
+description: Rebase a forked repository's branch on top of an upstream repository's branch.
+author: The Browser Company
+
+inputs:
+  fork_repo:
+    description: The repository to update.
+    required: false
+
+  fork_branch:
+    description: The branch to update.
+    required: true
+
+  upstream_repo:
+    description: The repository to pull changes from.
+    required: true
+
+  upstream_branch:
+    description: The branch to pull changes from.
+    required: true
+
+  upstream_host:
+    description: The upstream repository URL host, if not github.com.
+    required: false
+    default: 'github.com'
+
+  dry_run:
+    description: If true, changes are not pushed to the fork.
+    required: false
+    default: false
+
+  token:
+    description: Authentication token to use for Git commands
+    required: false
+
+runs:
+  using: composite
+  steps:
+    - uses: actions/checkout@v4
+      with:
+        repository: ${{ inputs.fork_repo }}
+        ref: ${{ inputs.fork_branch }}
+        # Fetch all commits from the fork to prevent arbitrary merge conflicts.
+        fetch-depth: 0
+        path: ${{ github.workspace }}/fork
+        token: ${{ inputs.token || github.token }}
+
+    - name: Rebase onto upstream
+      shell: pwsh
+      run: |
+        Set-StrictMode -Version 1
+
+        cd ${{ github.workspace }}/fork
+
+        git config --global user.name '${{ github.actor }}'
+        git config --global user.email '${{ github.actor }}@users.noreply.github.com'
+
+        git remote add upstream https://${{ inputs.upstream_host }}/${{ inputs.upstream_repo }}
+        git fetch upstream ${{ inputs.upstream_branch }}
+
+        # Store the list of commits we're about to rebase as a job summary.
+        # --format is a GitHub flavored markdown table row.
+        $NewCommitsFromUpstream=(git log --format="|%h|%s|" --no-merges upstream/${{ inputs.upstream_branch }} ^${{ inputs.fork_branch }})
+
+        echo "|Commit|Description|" | Out-File -Append -Encoding utf8 $env:GITHUB_STEP_SUMMARY
+        echo "|:-----|:----------|" | Out-File -Append -Encoding utf8 $env:GITHUB_STEP_SUMMARY
+
+        foreach ($Commit in $NewCommitsFromUpstream) {
+          $Commit=$Commit -replace "`"","'"
+          echo "${Commit}" | Out-File -Append -Encoding utf8 $env:GITHUB_STEP_SUMMARY
+        }
+
+        git checkout ${{ inputs.fork_branch }}
+        git rebase upstream/${{ inputs.upstream_branch }}
+
+    - name: Push changes
+      if: ${{ inputs.dry_run == 'false' || inputs.dry_run == false }}
+      shell: pwsh
+      run: git -C ${{ github.workspace }}/fork push origin ${{ inputs.fork_branch }} -f
+