From e6fb87c57417e956f7fc4779f0f909418b462b60 Mon Sep 17 00:00:00 2001
From: restitux <restitux@ohea.xyz>
Date: Wed, 24 Dec 2025 00:26:56 -0700
Subject: [PATCH] TEST

---
 .gitea/workflows/build-release.yml |  2 +-
 ci/build.sh                        | 30 ++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/.gitea/workflows/build-release.yml b/.gitea/workflows/build-release.yml
index e69f355..1ec07a8 100644
--- a/.gitea/workflows/build-release.yml
+++ b/.gitea/workflows/build-release.yml
@@ -1,5 +1,5 @@
 name: Build Coredns with netboxdns plugin
-on: [push]
+on: [workflow_dispatch]
 
 jobs:
   build:
diff --git a/ci/build.sh b/ci/build.sh
index 0851908..b7853a5 100755
--- a/ci/build.sh
+++ b/ci/build.sh
@@ -2,8 +2,14 @@
 set -xeuo pipefail
 
 main() {
+  # Location to persist build metadata between runs (use Actions cache on this). [web:51][web:52]
+  BUILD_STATE_DIR="${BUILD_STATE_DIR:-${GITHUB_WORKSPACE:-.}/.build-state}"
+  mkdir -p "${BUILD_STATE_DIR}"
+  META_FILE="${BUILD_STATE_DIR}/coredns-netboxdns.meta"
+
   GO_VERSION=$(curl -s 'https://go.dev/VERSION?m=text' | head -n1)
   ACTION_REPO_DIR="${PWD}"
+  ACTION_COMMIT="$(git rev-parse HEAD)"
 
   # 2. Create temp directory
   TMPDIR="$(mktemp -d)"
@@ -33,6 +39,22 @@ main() {
   git fetch --tags --depth=1 origin "${COREDNS_LATEST_VERSION}"
   git checkout "${COREDNS_LATEST_VERSION}"
 
+  echo "CoreDNS version (tag): ${LATEST_TAG}"
+  echo "Action repo commit    : ${ACTION_COMMIT}"
+
+  # 4b. Skip build if same CoreDNS version and same action repo commit as last time.  # NEW
+  if [ -f "${META_FILE}" ]; then
+    LAST_COREDNS_TAG="$(sed -n 's/^COREDNS_TAG=//p' "${META_FILE}")"
+    LAST_ACTION_COMMIT="$(sed -n 's/^ACTION_COMMIT=//p' "${META_FILE}")"
+
+    if [ "${LAST_COREDNS_TAG}" = "${COREDNS_LATEST_VERSION}" ] &&
+      [ "${LAST_ACTION_COMMIT}" = "${ACTION_COMMIT}" ]; then
+      echo "No changes in CoreDNS version or action repo commit since last build."
+      echo "Skipping build and upload."
+      exit 0
+    fi
+  fi
+
   # 5. Update plugin.cfg to include netboxdns plugin
   #    Insert netboxdns after the 'cache' plugin entry as recommended.
   if ! grep -q '^netboxdns:' plugin.cfg; then
@@ -110,6 +132,14 @@ EOF
     --upload-file "${DEB_OUT}" \
     "${DEB_REGISTRY_URL}"
 
+  # 13. Store metadata for next run (so it can be used with actions/cache).  # NEW
+  cat >"${META_FILE}" <<EOF
+COREDNS_TAG=${COREDNS_LATEST_VERSION}
+ACTION_COMMIT=${ACTION_COMMIT}
+EOF
+
+  echo "Updated build metadata at ${META_FILE}"
+
 }
 
 main "$@"