From 8c93d1a23d6b56e43e51d9161a38dd9c9bd80003 Mon Sep 17 00:00:00 2001
From: Iurii Alekseev <iurii.alekseev.inbox@gmail.com>
Date: Wed, 29 Oct 2025 10:27:59 +0100
Subject: [PATCH 1/4] Add CI workflow

---
 .github/workflows/ci.yml | 20 ++++++++++++++++++++
 .gitignore               |  3 +++
 2 files changed, 23 insertions(+)
 create mode 100644 .github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..16e01f3
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,20 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: Run RuboCop
+        run: bundle exec rubocop
diff --git a/.gitignore b/.gitignore
index b04a8c8..f092e1e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,6 @@
 
 # rspec failure tracking
 .rspec_status
+
+# Local tooling config
+mise.toml

From 590d0c72282390e047ad7159539075f9f2046ef8 Mon Sep 17 00:00:00 2001
From: Iurii Alekseev <iurii.alekseev.inbox@gmail.com>
Date: Wed, 29 Oct 2025 10:29:35 +0100
Subject: [PATCH 2/4] Add x86_64-linux to supported platforms

---
 Gemfile.lock | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Gemfile.lock b/Gemfile.lock
index 1f44785..b911d6a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,6 +45,8 @@ GEM
       racc (~> 1.4)
     nokogiri (1.18.10-x86_64-darwin)
       racc (~> 1.4)
+    nokogiri (1.18.10-x86_64-linux-gnu)
+      racc (~> 1.4)
     octokit (10.0.0)
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
@@ -113,7 +115,9 @@ GEM
 
 PLATFORMS
   arm64-darwin-24
+  arm64-darwin-25
   x86_64-darwin-24
+  x86_64-linux
 
 DEPENDENCIES
   irb

From 06739ce1d29619d95efdafbb7b48ec8d4fc6f6d8 Mon Sep 17 00:00:00 2001
From: Iurii Alekseev <iurii.alekseev.inbox@gmail.com>
Date: Wed, 29 Oct 2025 10:31:12 +0100
Subject: [PATCH 3/4] Fix pull_request/push duplication

---
 .github/workflows/ci.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 16e01f3..0bfb75d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,8 +1,10 @@
 name: CI
 
 on:
-  push:
   pull_request:
+  push:
+    branches:
+      - main
 
 jobs:
   ci:

From c1e6028fda3da0cd818bef961be9b2aa3ba9576a Mon Sep 17 00:00:00 2001
From: Iurii Alekseev <iurii.alekseev.inbox@gmail.com>
Date: Wed, 29 Oct 2025 10:32:56 +0100
Subject: [PATCH 4/4] Cancel obsolete jobs

---
 .github/workflows/ci.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0bfb75d..f831f7f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   ci:
     runs-on: ubuntu-latest