From ddaf968028e51d6291c2ff906b58696710496caf Mon Sep 17 00:00:00 2001
From: VasilevNStas <ctac@outlook.com>
Date: Fri, 26 Jun 2026 13:40:21 +0300
Subject: [PATCH] fix: #3 add buf CI workflow for lint and breaking checks

Adds a GitHub Actions workflow that runs buf lint and buf breaking
on every pull request against master. Also adds a minimal buf.yaml
with STANDARD lint rules (excluding those that fire on the existing
codebase: ENUM_VALUE_PREFIX, ENUM_ZERO_VALUE_SUFFIX,
FIELD_NOT_REQUIRED, PACKAGE_DIRECTORY_MATCH, PACKAGE_VERSION_SUFFIX).

Breaking changes are checked at the FILE level, so any incompatible
modification to an existing message, field, or enum is caught before
merge.

Closes #3
---
 .github/workflows/ci.yml | 22 ++++++++++++++++++++++
 buf.yaml                 | 13 +++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 .github/workflows/ci.yml
 create mode 100644 buf.yaml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..bccfbe1
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,22 @@
+# SPDX-FileCopyrightText: Copyright (c) 2026 APN.
+# SPDX-License-Identifier: MIT.
+
+name: ci
+on:
+  pull_request:
+    branches: [master]
+  push:
+    branches: [master]
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: bufbuild/buf-setup-action@v1
+      - run: buf lint
+  breaking:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: bufbuild/buf-setup-action@v1
+      - run: buf breaking --against '.git#branch=master'
diff --git a/buf.yaml b/buf.yaml
new file mode 100644
index 0000000..43dfc33
--- /dev/null
+++ b/buf.yaml
@@ -0,0 +1,13 @@
+version: v2
+lint:
+  use:
+    - STANDARD
+  except:
+    - ENUM_VALUE_PREFIX
+    - ENUM_ZERO_VALUE_SUFFIX
+    - FIELD_NOT_REQUIRED
+    - PACKAGE_DIRECTORY_MATCH
+    - PACKAGE_VERSION_SUFFIX
+breaking:
+  use:
+    - FILE