Move CI over to OpenWrt 25.12.4 (#40)

* Move CI over to OpenWrt 25.12.4

* Fix base path handling in overlay.mk

* Keep PKG_SOURCE_MIRROR enabled to avoid a download.mk bug

* Update README

Author: ksperling-apple

.containers/matter-openwrt-build/Dockerfile

@@ -1,4 +1,4 @@
-ARG OPENWRT_VERSION=24.10.5
+ARG OPENWRT_VERSION=25.12.4
 FROM ghcr.io/openwrt/sdk:x86-generic-${OPENWRT_VERSION}
 LABEL org.opencontainers.image.description="Pre-warmed OpenWrt SDK"
 

.github/workflows/build-packages.yaml

@@ -17,7 +17,7 @@ jobs:
       - name: Build
         uses: addnab/docker-run-action@v3
         with:
-          image: ghcr.io/project-chip/matter-openwrt-build:24.10.5
+          image: ghcr.io/project-chip/matter-openwrt-build:25.12.4
           options: --volume ${{ github.workspace }}:/workspace
           shell: bash
           run: |

README.md

@@ -11,7 +11,7 @@ Matter is a unified, open-source application-layer connectivity standard built t
 This repository is intended to be included as a package feed in an OpenWrt buildroot, and familiarity with the configuration and use of the OpenWrt build system is assumed in the following instructions. Please refer to the [OpenWrt Developer Guide](https://openwrt.org/docs/guide-developer/start) for general guidance on building an OpenWrt system.
 
 Note that this repository is aimed primarily at Matter implementers and OpenWrt integrators, and provides source packages only.
-The general policy for the packages in this feed is to target the latest stable release of OpenWrt, currently this is the **24.10.x** line of releases.
+The general policy for the packages in this feed is to target the latest stable release of OpenWrt, currently this is the **25.12.x** line of releases.
 
 ### Adding the feed
 

devel/gn/Makefile

@@ -17,7 +17,6 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=gn
 PKG_SOURCE_URL:=https://gn.googlesource.com/gn
 PKG_SOURCE_PROTO:=git-with-metadata
-PKG_SOURCE_MIRROR:=0 # don't try OpenWrt mirror
 
 PKG_SOURCE_DATE:=2025-03-21
 PKG_SOURCE_VERSION:=6e8e0d6d4a151ab2ed9b4a35366e630c55888444

include/overlay.mk

@@ -1,4 +1,4 @@
-# Copyright (c) 2023 Project CHIP Authors
+# Copyright (c) 2023-2026 Project CHIP Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -48,6 +48,8 @@ define BuildPackageOverlay/Build
 	rm -rf $$(OVERLAY_DIR)
 endef
 
+# Base packages should be directly in feeds/base, but before OpenWrt 25 that path can
+# point to the root of a core repo working copy, requiring an additional package/ suffix.
 overlay_base=$(or $(call overlay_find_core,$(1)),$(error Unable to locate core package '$(1)' (missing base feed?)))
-overlay_find_core=$(firstword $(foreach p,package/$(1) feeds/base/package/$(1),$(if $(wildcard $(TOPDIR)/$(p)/Makefile),$(p))))
+overlay_find_core=$(firstword $(foreach p,feeds/base/$(1) feeds/base/package/$(1),$(if $(wildcard $(TOPDIR)/$(p)/Makefile),$(p))))
 overlay_hash=$(shell find $(1) -type f -not -name '.*' | sort | mkhash md5)

service/matter-netman/Makefile

@@ -18,7 +18,6 @@ PKG_NAME:=matter-netman
 PKG_RELEASE:=1
 PKG_SOURCE_URL:=https://github.com/project-chip/connectedhomeip.git
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_MIRROR:=0 # don't try OpenWrt mirror
 PKG_SOURCE_SUBMODULES:=\
   third_party/pigweed/repo \
   third_party/jsoncpp/repo \

third_party/openthread-br/Makefile

@@ -32,7 +32,6 @@ PKG_NAME:=openthread-br
 PKG_RELEASE:=2
 PKG_SOURCE_URL:=https://github.com/openthread/ot-br-posix.git
 PKG_SOURCE_PROTO:=git-with-metadata
-PKG_SOURCE_MIRROR:=0 # don't try OpenWrt mirror
 
 PKG_SOURCE_DATE:=2025-10-29
 PKG_SOURCE_VERSION:=07fc9adf2afd6f697a92c54db922f575c7bcd28f

third_party/openthread-rcp-nrf528xx/Makefile

@@ -18,7 +18,6 @@ PKG_NAME:=openthread-rcp-nrf528xx
 PKG_RELEASE:=1
 PKG_SOURCE_URL:=https://github.com/openthread/ot-nrf528xx.git
 PKG_SOURCE_PROTO:=git-with-metadata
-PKG_SOURCE_MIRROR:=0 # don't try OpenWrt mirror
 
 # Note: The commit picked for this package should be aligned with that of the
 # openthread-br package so that the underlying OpenThread version matches.