ci: backport PRs

.markdownlint.yml

@@ -1,5 +1,18 @@
+"default": true
+"MD001": false
+"MD004": false
 "MD007": 
   "indent": 4
-"MD013": 
-  "line_length": 120
-"no-hard-tabs": false
+"MD013": false
+"MD024": 
+  "siblings_only": true
+"MD025": false
+"MD026": 
+  "punctuation": ".;:"
+"MD029": false
+"MD033": false
+"MD034": false
+"MD036": false
+"MD040": false
+"MD041": false
+"no-hard-tabs": false

.markdownlintignore

@@ -0,0 +1,3 @@
+CHANGELOG.md
+docs/api/proto-docs.md
+docs/node_modules

.mergify.yml

@@ -1,10 +1,26 @@
+queue_rules:
+  - name: default
+    conditions:
+      - "#approved-reviews-by>1"
+
 pull_request_rules:
-  - name: automerge to base branch with label automerge and branch protection passing
+  - name: automerge to the base branch with label automerge and branch protection passing
     conditions:
       - "#approved-reviews-by>1"
       - base=main
       - label=automerge
     actions:
+      queue:
+        name: default
       merge:
         method: squash
         strict: true
+        commit_message: title+body
+  - name: backport patches to v0.3.x branch
+    conditions:
+      - base=main
+      - label=backport/0.3.x
+    actions:
+      backport:
+        branches:
+          - release/v0.3.x

CHANGELOG.md

@@ -37,6 +37,11 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## Unreleased
 
+## Improvements
+
+* (ci) [\#117](https://github.com/tharsis/evmos/pull/117) Enable automatic backport of PRs.
+
+
 ## [v0.3.0] - 2021-11-24
 
 ## API Breaking