[Buildroot] [PATCH 10/15] package/pkg-generic.mk: Move python fixup to generic package infrastructure

[Yann E. MORIN <yann.morin.1998@free.fr>]

Herv?, All,

On 2021-06-21 16:11 +0200, Herve Codina spake thusly:
> Fixing _sysconfigdata*.{py,pyc} was previously done by python package
> infrastructure. Some packages use python stuff without using python
> package infrastructure.
> These packages perform overwrites and need the specific python fixup
> to fix them.
> 
> In order to be sure to fix all of these packages, the python fixup
> is moved to the generic package infrastructure and applied to all
> packages.
> This follows the same principle as for the .la libtool files fixup.
> 
> Signed-off-by: Herve Codina <herve.codina@bootlin.com>
> ---
>  package/pkg-generic.mk | 17 +++++++++++++++++
>  package/pkg-python.mk  | 12 ------------
>  2 files changed, 17 insertions(+), 12 deletions(-)
> 
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index 4069d2cf3c..918e2381af 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -103,6 +103,21 @@ define fixup-libtool-files
>  endef
>  endif
>  
> +# Make sure python _sysconfigdata*.py files only reference the current
> +# per-package directory.
> +
> +# $1: package name (lower case)
> +# $2: staging or host directory of the package
> +ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
> +define fixup-python-files
> +	$(Q)find $(2) \( -path '$(2)/lib/python*' -o -path '$(2)/usr/lib/python*' \) \
> +		-name "_sysconfigdata*.py" | xargs --no-run-if-empty \
> +		$(SED) "s:$(PER_PACKAGE_DIR)/[^/]\+/:$(PER_PACKAGE_DIR)/$(1)/:g" ;\
> +	find $(2) \( -path '$(2)/lib/python*' -o -path '$(2)/usr/lib/python*' \) \
> +		-name "_sysconfigdata*.pyc" -print0 | xargs -0 -r rm -f
> +endef
> +endif
> +
>  # Functions to detect overwritten files
>  
>  ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
> @@ -257,6 +272,8 @@ $(BUILD_DIR)/%/.stamp_configured:
>  	@$(call pkg_size_before,$(HOST_DIR),-host)
>  	$(call fixup-libtool-files,$(NAME),$(HOST_DIR))
>  	$(call fixup-libtool-files,$(NAME),$(STAGING_DIR))
> +	$(call fixup-python-files,$(NAME),$(HOST_DIR))
> +	$(call fixup-python-files,$(NAME),$(STAGING_DIR))
>  	$(foreach hook,$($(PKG)_PER_PACKAGE_TWEAK_HOOKS),$(call $(hook))$(sep))

So, earlier in the series, you introduced _PER_PACKAGE_TWEAK_HOOKS (or
whatever the name it will eventually bear), stating that infras could
set it, but here  you are not taking the chance to demonstrate this,
and instead you are inserting the python fixups in an ad-hoc way.

Which also illustrates that the libtool fixups should be converted to
the _PER_PACKAGE_TWEAK_HOOKS, probably...

Otherwise, this is a good change.

Regards,
Yann E. MORIN.

>  	@$(call pkg_detect_overwrite_before,$(TARGET_DIR))
>  	@$(call pkg_detect_overwrite_before,$(HOST_DIR),-host)
> diff --git a/package/pkg-python.mk b/package/pkg-python.mk
> index b3fde77da5..e6b81bdfd3 100644
> --- a/package/pkg-python.mk
> +++ b/package/pkg-python.mk
> @@ -92,16 +92,6 @@ HOST_PKG_PYTHON_SETUPTOOLS_INSTALL_OPTS = \
>  	--root=/ \
>  	--single-version-externally-managed
>  
> -ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
> -define PKG_PYTHON_FIXUP_SYSCONFIGDATA
> -	find $(HOST_DIR)/lib/python* $(STAGING_DIR)/usr/lib/python* \
> -		-name "_sysconfigdata*.py" | xargs --no-run-if-empty \
> -		$(SED) "s:$(PER_PACKAGE_DIR)/[^/]\+/:$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/:g" ;\
> -	find $(HOST_DIR)/lib/python* $(STAGING_DIR)/usr/lib/python* \
> -		-name "_sysconfigdata*.pyc" -print0 | xargs -0 -r rm -f
> -endef
> -endif
> -
>  ################################################################################
>  # inner-python-package -- defines how the configuration, compilation
>  # and installation of a Python package should be done, implements a
> @@ -246,8 +236,6 @@ $(2)_PYTHON_INTERPRETER = $$(HOST_DIR)/bin/$$($(2)_NEEDS_HOST_PYTHON)
>  endif
>  endif
>  
> -$(2)_PRE_CONFIGURE_HOOKS += PKG_PYTHON_FIXUP_SYSCONFIGDATA
> -
>  #
>  # Build step. Only define it if not already defined by the package .mk
>  # file.
> -- 
> 2.31.1
> 
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