From abfa9011f7128a08c023267ac8ccf25044abea49 Mon Sep 17 00:00:00 2001
From: Barrett Ruth <br.barrettruth@gmail.com>
Date: Thu, 18 Sep 2025 23:04:40 -0400
Subject: [PATCH] feat(ci): only run certain tests on change

---
 .github/workflows/ci.yml   | 40 ++++++++++++++++++++++++++++++++++++++
 .github/workflows/test.yml | 23 ++++++++++++++++++++++
 2 files changed, 63 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2a69753..02fadef 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,9 +7,37 @@ on:
     branches: [main]
 
 jobs:
+  changes:
+    runs-on: ubuntu-latest
+    outputs:
+      lua: ${{ steps.changes.outputs.lua }}
+      python: ${{ steps.changes.outputs.python }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dorny/paths-filter@v3
+        id: changes
+        with:
+          filters: |
+            lua:
+              - 'lua/**'
+              - 'spec/**'
+              - 'plugin/**'
+              - 'after/**'
+              - 'ftdetect/**'
+              - '*.lua'
+              - '.luarc.json'
+              - 'stylua.toml'
+              - 'selene.toml'
+            python:
+              - 'scrapers/**'
+              - 'tests/scrapers/**'
+              - 'pyproject.toml'
+              - 'uv.lock'
   lua-format:
     name: Lua Formatting
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.lua == 'true' }}
     steps:
       - uses: actions/checkout@v4
       - uses: JohnnyMorganz/stylua-action@v4
@@ -21,6 +49,8 @@ jobs:
   lua-lint:
     name: Lua Linting
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.lua == 'true' }}
     steps:
       - uses: actions/checkout@v4
       - name: Lint with Selene
@@ -32,6 +62,8 @@ jobs:
   lua-typecheck:
     name: Lua Type Checking
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.lua == 'true' }}
     steps:
       - uses: actions/checkout@v4
       - name: Run Lua LS Type Check
@@ -44,6 +76,8 @@ jobs:
   python-format:
     name: Python Formatting
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.python == 'true' }}
     steps:
       - uses: actions/checkout@v4
       - name: Install uv
@@ -56,6 +90,8 @@ jobs:
   python-lint:
     name: Python Linting
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.python == 'true' }}
     steps:
       - uses: actions/checkout@v4
       - name: Install uv
@@ -68,6 +104,8 @@ jobs:
   python-typecheck:
     name: Python Type Checking
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.python == 'true' }}
     steps:
       - uses: actions/checkout@v4
       - name: Install uv
@@ -80,6 +118,8 @@ jobs:
   python-test:
     name: Python Testing
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.python == 'true' }}
     steps:
       - uses: actions/checkout@v4
       - name: Install uv
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b5c29ca..7929abc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,9 +6,32 @@ on:
       - main
 
 jobs:
+  changes:
+    runs-on: ubuntu-latest
+    outputs:
+      lua: ${{ steps.changes.outputs.lua }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dorny/paths-filter@v3
+        id: changes
+        with:
+          filters: |
+            lua:
+              - 'lua/**'
+              - 'spec/**'
+              - 'plugin/**'
+              - 'after/**'
+              - 'ftdetect/**'
+              - '*.lua'
+              - '.luarc.json'
+              - 'stylua.toml'
+              - 'selene.toml'
+
   build:
     name: Run tests
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.lua == 'true' }}
     strategy:
       matrix:
         neovim_version: ['nightly', 'stable']