Integration automatic PR merge from staging to master

Author: CMCDragonkai

.gitlab-ci.yml

@@ -91,6 +91,33 @@ check:test:
     - if: $CI_COMMIT_BRANCH && $CI_COMMIT_BRANCH !~ /^(?:master|staging)$/ && $CI_COMMIT_TITLE !~ /^[0-9]+\.[0-9]+\.[0-9]+(?:-.*[0-9]+)?$/
       when: manual
 
+build:merge:
+  stage: build
+  needs: []
+  # Don't interrupt publishing job
+  interruptible: false
+  allow_failure: true
+  script:
+    - >
+        nix-shell -I nixpkgs=./pkgs.nix --packages git gitAndTools.gh --run '
+        if [ ! gh pr view staging --repo MatrixAI/TypeScript-Demo-Lib-Native >/dev/null 2>/dev/null ]; then
+          gh pr create \
+            --head staging \
+            --base master \
+            --title 'Merge staging to master' \
+            --fill \
+            --assignee '@me' \
+            --no-maintainer-edit \
+            --repo MatrixAI/TypeScript-Demo-Lib-Native;
+        fi;
+        gh pr merge staging \
+          --auto \
+          --repo MatrixAI/TypeScript-Demo-Lib-Native;
+        '
+  rules:
+    # Runs on staging commits
+    - if: $CI_COMMIT_BRANCH == 'staging'
+
 build:linux:
   stage: build
   needs:
@@ -271,6 +298,8 @@ integration:deployment:
   stage: integration
   needs:
     - integration:builds
+  # Don't interrupt deploying job
+  interruptible: false
   script:
     - echo 'Perform service deployment for integration testing'
   rules:
@@ -422,35 +451,15 @@ integration:prerelease:
     # Dependencies must not run on the version commit
     - if: $CI_COMMIT_TAG =~ /^v[0-9]+\.[0-9]+\.[0-9]+-.*[0-9]+$/
 
-integration:merge:
-  stage: integration
-  needs:
-    - job: integration:nix
-      optional: true
-    - job: integration:docker
-      optional: true
-    - job: integration:linux
-      optional: true
-    - job: integration:windows
-      optional: true
-    - job: integration:macos
-      optional: true
-  script:
-    - echo 'use gh to create and merge PR from staging to master'
-    - echo 'use github commit status to signal master to allow merge'
-  rules:
-    # Runs on staging commits and ignores version commits
-    - if: $CI_COMMIT_BRANCH == 'staging' && $CI_COMMIT_TITLE !~ /^[0-9]+\.[0-9]+\.[0-9]+(?:-.*[0-9]+)?$/
-    # Runs on tag pipeline where the tag is a prerelease or release version
-    - if: $CI_COMMIT_TAG =~ /^v[0-9]+\.[0-9]+\.[0-9]+(?:-.*[0-9]+)?$/
-
 release:deployment:
   stage: release
   needs:
     - project: $CI_PROJECT_PATH
       job: integration:builds
       ref: staging
       artifacts: true
+  # Don't interrupt deploying job
+  interruptible: false
   script:
     - echo 'Perform service deployment for production'
   rules: