feat: Add automated PRs and matrix notifications

.drone.yml

@@ -3,8 +3,33 @@ type: docker
 name: api
 
 steps:
-  - name: "Sync upstream and try PR"
+  - name: "Sync upstream to local"
+    image: nixery.dev/git/shell
+    environment:
+      GITEA_SSH_KEY:
+        from_secret: gitea_ssh_key
+    commands:
+      - echo $GITEA_SSH_KEY > ~/.ssh/id_rsa
+      - echo <<EOF
+        Host git.b12f.io
+          Port 2222
+          User git
+          HostName git.b12f.io
+        EOF >> ~/.ssh/config
+      - git clone -b devos git@git.b12f.io:pub-solar/os
+      - cd os
+      - git remote add devos https://github.com/divnix/devos.git
+      - git fetch --all
+      - git merge -X theirs devos/core
+      - git push origin devos
+
+  - name: "Sync core with upstream"
     image: nixery.dev/git/tea/shell
+    when:
+      status:
+        - success
+    depends_on:
+      - "Sync upstream to local"
     environment:
       GITEA_SSH_KEY:
         from_secret: gitea_ssh_key
@@ -18,7 +43,52 @@ steps:
         EOF >> ~/.ssh/config
       - git clone -b core git@git.b12f.io:pub-solar/os
       - cd os
-      - git remote add devos https://github.com/divnix/devos.git
-      - git fetch --all
-      - git merge devos/core
+      - git fetch
+      - git merge devos
       - git push origin core
+
+  - name: "Notify Success"
+    image: plugins/matrix
+    when:
+      status:
+        - success
+    depends_on:
+      - "Sync core with upstream"
+    settings:
+      homeserver: https://element.pub.solar
+      roomid: operations:pub.solar
+      username:
+        from_secret: matrix_username
+      password:
+        from_secret: matrix_password
+      template: Upstreaming devos into core succeeded.
+
+  - name: "Open pull request for failed merge"
+    image: nixery.dev/tea/shell
+    when:
+      status:
+        - failure
+    depends_on:
+      - "Sync core with upstream"
+    environment:
+      TEA_CONFIG:
+        from_secret: tea_config
+    commands:
+      - echo $TEA_CONFIG > ~/.config/tea/config.yml
+      - tea pulls create --base core --head devos
+
+  - name: notify
+    image: plugins/matrix
+    when:
+      status:
+        - success
+    depends_on:
+      - "Open pull request for failed merge"
+    settings:
+      homeserver: https://element.pub.solar
+      roomid: operations:pub.solar
+      username:
+        from_secret: matrix_username
+      password:
+        from_secret: matrix_password
+      template: Upstreaming devos into core failed. A pull request has been created https://git.b12f.io/pub-solar/os/pulls