[docker] Make ESP-IDF venvs cleanable with "Clean All"

docker/docker_entrypoint.sh

@@ -15,12 +15,19 @@ if [[ ! -d "${pio_cache_base}" ]]; then
     mkdir -p "${pio_cache_base}"
 fi
 
-# we can't set core_dir, because the settings file is stored in `core_dir/appstate.json`
-# setting `core_dir` would therefore prevent pio from accessing
+# We can't set PLATFORMIO_CORE_DIR because the settings file is stored in
+# `core_dir/appstate.json` and setting it would prevent pio from reading
+# cached settings. Instead we override individual subdirectories.
 export PLATFORMIO_PLATFORMS_DIR="${pio_cache_base}/platforms"
 export PLATFORMIO_PACKAGES_DIR="${pio_cache_base}/packages"
 export PLATFORMIO_CACHE_DIR="${pio_cache_base}/cache"
 
+# Symlink penv to persistent storage so ESP-IDF venvs can be cleaned with
+# "Clean All". There's no env var for penv location.
+mkdir -p "${pio_cache_base}/penv"
+mkdir -p /root/.platformio
+ln -sfn "${pio_cache_base}/penv" /root/.platformio/penv
+
 # If /build is mounted, use that as the build path
 # otherwise use path in /config (so that builds aren't lost on container restart)
 if [[ -d /build ]]; then

docker/ha-addon-rootfs/etc/s6-overlay/s6-rc.d/esphome/run

@@ -9,12 +9,19 @@ readonly pio_cache_base=/data/cache/platformio
 export ESPHOME_IS_HA_ADDON=true
 export PLATFORMIO_GLOBALLIB_DIR=/piolibs
 
-# we can't set core_dir, because the settings file is stored in `core_dir/appstate.json`
-# setting `core_dir` would therefore prevent pio from accessing
+# We can't set PLATFORMIO_CORE_DIR because the settings file is stored in
+# `core_dir/appstate.json` and setting it would prevent pio from reading
+# cached settings. Instead we override individual subdirectories.
 export PLATFORMIO_PLATFORMS_DIR="${pio_cache_base}/platforms"
 export PLATFORMIO_PACKAGES_DIR="${pio_cache_base}/packages"
 export PLATFORMIO_CACHE_DIR="${pio_cache_base}/cache"
 
+# Symlink penv to persistent storage so ESP-IDF venvs can be cleaned with
+# "Clean All". There's no env var for penv location.
+mkdir -p "${pio_cache_base}/penv"
+mkdir -p /root/.platformio
+ln -sfn "${pio_cache_base}/penv" /root/.platformio/penv
+
 if bashio::config.true 'leave_front_door_open'; then
     export DISABLE_HA_AUTHENTICATION=true
 fi