The esp-idf-configdep utility works as a compiler wrapper. It lets the compiler compile the app and checks whether -MF option was used to generate dependency files. If yes, it checks for sdkconfig.h dependency in those files. Target file depending on sdkconfig.h is then scanned for all CONFIG_* occurrences and the dependency file is altered so that the given target file is marked as "dirty" only if the config options it actually uses are changed. This ensures that after a configuration update, only affected files are rebuilt, reducing incremental build times. The compiler launcher mechanism is changed from RULE_LAUNCH_COMPILE (Makefile-only) to CMAKE_*_COMPILER_LAUNCHER (generator-agnostic), enabling launcher chaining (configdep -> ccache -> compiler). Made-with: Cursor
Documentation Source Folder
This folder contains source files of ESP-IDF documentation available in English and Chinese.
The sources do not render well in GitHub and some information is not visible without building the documentation.
Use the actual documentation, which is generated within about 20 minutes of each commit:
Hosted Documentation
- English: https://docs.espressif.com/projects/esp-idf/en/latest/
- Chinese: https://docs.espressif.com/projects/esp-idf/zh_CN/latest/
After clicking any link to ESP-IDF Programming Guide, go to the top of the sidebar, then make sure you have the correct Espressif chip (target) and ESP-IDF version selected in the dropdown menus. You can also find a link at the bottom right to download the HTML version as a zip for offline reading.
Building Documentation
The documentation is built using the Python package esp-docs, which can be installed by running:
pip install esp-docs
For a summary of available options, run:
build-docs --help
For more information, see the esp-docs documentation at https://github.com/espressif/esp-docs/blob/master/README.md