From f2b609a2ef08326a517ce11c30aa4f733baa40e4 Mon Sep 17 00:00:00 2001
From: jedarden <github@jedarden.com>
Date: Tue, 14 Apr 2026 15:03:33 -0400
Subject: [PATCH] fix(ci): source IDF export.sh in firmware build stage

espressif/idf entrypoint is not invoked in multi-stage builds, so
idf.py is not in PATH. Sourcing export.sh activates the toolchain.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 Dockerfile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index c36e634..acaa268 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,8 +7,10 @@ FROM espressif/idf:v5.2 AS firmware-builder
 WORKDIR /project
 COPY firmware/ ./
 
+# Source export.sh to activate IDF toolchain (entrypoint is not called in build stages)
 # idf.py build produces build/spaxel-firmware.bin
-RUN idf.py build
+SHELL ["/bin/bash", "-c"]
+RUN . $IDF_PATH/export.sh && idf.py build
 
 # Stage 2: Build the Go binary
 FROM golang:1.25-bookworm AS builder