Missing distclean target (IDFGH-841)

espressif / esp-idf

Espressif IoT Development Framework. Official development framework for Espressif SoCs.

Apache License 2.0

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Missing distclean target (IDFGH-841) #2776

Open keelung-yang opened 5 years ago

keelung-yang commented 5 years ago

I want to reset all configurations in menuconfig, so I execute this:

$ make distclean Toolchain path: /opt/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc Toolchain version: crosstool-ng-1.22.0-80-g6c4433a5 Compiler version: 5.2.0 make: *** No rule to make target 'distclean'. Stop.

There is no distclean target in project_config.mk. I also tried make config-clean, still not working: my changes still in menuconfig

igrr commented 5 years ago

Hi @keelung-yang, could you please point to the documentation page which mentioned this target? There is only clean target for build output. You can cancel config changes by delete sdkconfig file.

keelung-yang commented 5 years ago

Hi @keelung-yang, could you please point to the documentation page which mentioned this target? There is only clean target for build output. You can cancel config changes by delete sdkconfig file.

Hi @igrr There is no distclean target indeed, according search results of official documents.

But it's a standard target for "delete all files in the current directory (or created by this makefile) that are created by configuring or building the program", see https://www.gnu.org/prep/standards/html_node/Standard-Targets.html. And most of projects using gnu toolchain also support distclean target, such as u-boot, linux kernel, ffmpeg and so on.

Literally, the config-clean target is doing what distclean doing. So, why not just rename config-clean to distclean as the 'standard' target in gnu toolchain?

BTW, the config-clean did not clean my menuconfig changes in the lastest esp-idf.

igrr commented 5 years ago

sdkconfig is of a project is often checked into git, so it is not so certain that it should be considered a build output. There are some build system targets which help you manipulate this settings file, but we treat it differently from the files generated in build directory. If you find distclean target useful, you may add it to your project makefile, as rm -f sdkconfig. However for some projects, sdkconfig file is included into the "distribution", so removing it would not be correct.

Alvin1Zhang commented 5 years ago

@keelung-yang Feel free to reopen if the issue still exists, thanks.

keelung-yang commented 5 years ago

@Alvin1Zhang I cannot re-open this issues since it's not closed by me and I'm not a collaborator.

There are several questions still not clear, so I don't think it should be closed.

Literally, the config-clean target is doing what distclean doing, but it's not documented
Need a clear and "standard" way to reset configurations and remove temp files, as same as distclean doing
If there is a "standard" way to do something, then using "standard" way in SDK but delivery work to end users: custom makefile themself.

Alvin1Zhang commented 5 years ago

Issue reopened. @keelung-yang

Alvin1Zhang commented 5 years ago

@keelung-yang Thanks for reporting this.