Allow custom refs when triggering the release workflow manually

Author: myftija

.github/workflows/release.yml

@@ -15,9 +15,9 @@ on:
           - release
           - prerelease
         default: "prerelease"
-      prerelease_ref:
-        description: "The ref (branch, tag, or SHA) to checkout and release from (prerelease only)"
-        required: false
+      ref:
+        description: "The ref (branch, tag, or SHA) to checkout and release from"
+        required: true
         type: string
       prerelease_tag:
         description: "The npm dist-tag for the prerelease (e.g., 'v4-prerelease')"
@@ -53,7 +53,15 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          ref: main
+          ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.ref || github.sha }}
+
+      - name: Verify ref is on main
+        if: github.event_name == 'workflow_dispatch'
+        run: |
+          if ! git merge-base --is-ancestor ${{ github.event.inputs.ref }} origin/main; then
+            echo "Error: ref must be an ancestor of main (i.e., already merged)"
+            exit 1
+          fi
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
@@ -121,11 +129,11 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          ref: ${{ github.event.inputs.prerelease_ref }}
+          ref: ${{ github.event.inputs.ref }}
 
-      - name: Validate ref is on main
+      - name: Verify ref is on main
         run: |
-          if ! git merge-base --is-ancestor ${{ github.event.inputs.prerelease_ref }} origin/main; then
+          if ! git merge-base --is-ancestor ${{ github.event.inputs.ref }} origin/main; then
             echo "Error: ref must be an ancestor of main (i.e., already merged)"
             exit 1
           fi