ESP ADF component override test

These are two applications taken from the getting started guides for ESP ADF and IDF which were extended in order to test component overriding.

The two applications are:

$ADF_PATH/examples/getting_started/play_mp3
$ADF_PATH/esp-idf/examples/getting_started/hello-world

Dummy components with the names same as two components in ADF and IDF were added to the apps.

I'm working on an ADF application for a while and now I wanted to update my ADF copy to the latest master (commit fae539c3035b2c041f49c5b01cdc4c99038595b0) which includes ESP-IDF v3.3. After updating my ADF copy I'm experiencing a problem when overriding ADF components. With the latest master I'm not able to build my app. In the output from idf.py build in the Component paths: section I see that the components are taken from the $ADF_PATH/components and not from <PROJECT_PATH>/components.

Steps to reproduce the problem:

git clone --recursive https://github.com/espressif/esp-adf.git
setting the envvars:

export ADF_PATH=/<path-to-esp-adf>
export IDF_PATH=$ADF_PATH/esp-idf
export PATH=$IDF_PATH/tools:$PATH
export PATH=/<path-to-xtensa-esp32-elf-5.2.0>/bin:$PATH

Prepare a demo project: copied IDF hello-world and ADF play_mp3 examples to a new folder and initialized it as a git repo.

$IDF_PATH/examples/getting-started/hello-world
$ADF_PATH/examples/getting-started/play_mp3

build the apps with idf.py build to check if everything works
added dummy components which override the standard components: wifi_service for ADF and wifi_provisioning for IDF and I've tried to rebuild the projects:

The expected result was that both the projects build successfully and the ADF/IDF components are overridden by the components in the project.

The actual result is:

the IDF hello_world project was build with the IDF wifi_provisioning component overridden with the one from the project;
for the ADF play_mp3 project, the wifi_service component was not overriden with the one from the project. I also checked Component paths: list from the idf.py build output and I saw that the path was $ADF_PATH/components/wifi_service.

I continued testing with older commits to find which commit breaks the component overrides and I found out that problem starts with the commit with hash e9c4faff248cd300207ad938a93d67d880484986.

commit e9c4faff248cd300207ad938a93d67d880484986
Author: maojianxin <maojianxin@espressif.com>
Date:   Fri Dec 13 13:52:43 2019 +0800

    Change COMPONENT_NAME to COMPONENT_TARGET for support IDF v3.3.1

chombium / adf-component-override

ESP ADF component override test

Steps to reproduce the problem:

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