Fraz/force rebase before queue (#3)

closes: #XXXX
refs: #XXXX

## Description


### Security Considerations


### Scaling Considerations


### Documentation Considerations


### Testing Considerations


### Upgrade Considerations

.github/workflows/check-fixup-commits.yml

@@ -0,0 +1,38 @@
+name: Check for fixup commits
+
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - converted_to_draft
+      - ready_for_review
+      - labeled
+      - unlabeled
+      - auto_merge_enabled
+      - auto_merge_disabled
+
+jobs:
+  check-fixup-commits:
+    runs-on: ubuntu-latest
+
+    env:
+      HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+      BASE_SHA: ${{ github.event.pull_request.base.sha }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Check for fixup commits
+        id: fixup-commits
+        run: |
+          if [[ $(git rev-list "$BASE_SHA".."$HEAD_SHA" --grep="^fixup! " | wc -l) -eq 0 ]]; then
+            echo "No fixup commits found in commit history"
+          else
+            echo "Fixup commits found in commit history"
+            exit 1
+          fi

.mergify.yml

@@ -68,6 +68,7 @@ pull_request_rules:
     conditions:
       - base=master
       - label=automerge:rebase
+      - linear-history
     actions:
       queue:
         merge_method: merge
@@ -79,3 +80,11 @@ pull_request_rules:
     actions:
       queue:
         merge_method: squash
+  - name: rebase and autosquash
+    conditions:
+      - base=master
+      - label=automerge:rebase
+      - -linear-history
+    actions:
+      rebase:
+        autosquash: true

multichain-testing/README.md

@@ -18,7 +18,7 @@ The `agoric` software revision includes the vats necessary for building and test
 
 First, ensure you have Kubernetes available. See https://docs.cosmology.zone/starship/get-started/step-2.
 
-The following will install `kubectl`, `kind`, `helm`, and `yq` as needed.
+The followinsg will install `kubectl`, `kind`, `helm`, and `yq` as needed.
 
 ```sh
 make clean setup
@@ -45,7 +45,7 @@ make port-forward
 make fund-provision-pool override-chain-registry
 ```
 
-If you get an error like "connection refused", you need to wait longer, until all the pods are Running.
+If you get an error like "connection refused", you need to wait longer, until all asdasthe pods are Running.
 
 # Cleanup