From 1fcf2b5e3262be5a2a8d9140b645edae0f40c3ba Mon Sep 17 00:00:00 2001
From: Richard Barnes <rlb@ipv.sx>
Date: Thu, 31 Oct 2024 17:17:51 -0400
Subject: [PATCH] Don't run CI unless there are salient code changes

---
 .github/workflows/main_ci.yml | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/.github/workflows/main_ci.yml b/.github/workflows/main_ci.yml
index 9a7841f1..9e149fb9 100644
--- a/.github/workflows/main_ci.yml
+++ b/.github/workflows/main_ci.yml
@@ -4,9 +4,17 @@ on:
   push:
     branches:
       - main
+    paths:
+      - **/src/**
+      - **/include/**
+      - **/test/**
   pull_request:
     branches:
       - main
+    paths:
+      - **/src/**
+      - **/include/**
+      - **/test/**
 
 env:
   CMAKE_BUILD_PARALLEL_LEVEL: 3
@@ -119,6 +127,14 @@ jobs:
       CRYPTO_DIR: "./alternatives/${{ matrix.crypto }}"
 
     steps:
+    # Only run non-OpenSSL 3 libraries if there's a change in the HPKE code
+    - uses: dorny/paths-filter@v3
+      if: matrix.crypto != "openssl_3"
+      with:
+        filters: |
+          src:
+            - 'lib/hpke/**'
+
     - uses: actions/checkout@v4
       with:
         submodules: recursive