[Buildroot] [PATCH 1/9 v2] core/pkg-generic: allow packages to exclude files when extracting

[Martin Bark]

Yann, All,

How about also applying the same excludes list to the rsync in the
.stamp_rsynced rule?

Thanks

Martin

On 24 October 2015 at 13:48, Yann E. MORIN <yann.morin.1998 at free.fr> wrote:
> Currently, packages that need to exclude parts of the archives when
> extracting (e.g. to gain space), like gcc or toolchain-external, have to
> provide custom extract commands, just for the sake of adding a bunch of
> --exclude directives when calling tar.
>
> Add a new variable that packages may set, to provide a space-separated
> list of patterns to exclude.
>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
> Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> Cc: Vicente Olivert Riera <Vincent.Riera at imgtec.com>
> Reviewed-by: Romain Naour <romain.naour at openwide.fr>
> ---
>  docs/manual/adding-packages-generic.txt | 4 ++++
>  package/pkg-generic.mk                  | 5 ++++-
>  2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/docs/manual/adding-packages-generic.txt b/docs/manual/adding-packages-generic.txt
> index 9d6401f..a7143e4 100644
> --- a/docs/manual/adding-packages-generic.txt
> +++ b/docs/manual/adding-packages-generic.txt
> @@ -314,6 +314,10 @@ information is (assuming the package name is +libfoo+) :
>    that have more than one leading component to strip, set this
>    variable with the value to be passed to tar. Default: 1.
>
> +* +LIBFOO_EXCLUDES+ is a space-separated list of patterns to exclude
> +  when extracting the archive. Each item from that list is passed as
> +  a tar's +--exclude+ option. By default, empty.
> +
>  * +LIBFOO_DEPENDENCIES+ lists the dependencies (in terms of package
>    name) that are required for the current target package to
>    compile. These dependencies are guaranteed to be compiled and
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index ffef4d3..8b189fe 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -508,7 +508,10 @@ $(2)_TARGET_DIRCLEAN =             $$($(2)_DIR)/.stamp_dircleaned
>  # default extract command
>  $(2)_EXTRACT_CMDS ?= \
>         $$(if $$($(2)_SOURCE),$$(INFLATE$$(suffix $$($(2)_SOURCE))) $$(DL_DIR)/$$($(2)_SOURCE) | \
> -       $$(TAR) --strip-components=$$($(2)_STRIP_COMPONENTS) -C $$($(2)_DIR) $$(TAR_OPTIONS) -)
> +       $$(TAR) --strip-components=$$($(2)_STRIP_COMPONENTS) \
> +               -C $$($(2)_DIR) \
> +               $$(foreach x,$$($(2)_EXCLUDES),--exclude='$$(x)' ) \
> +               $$(TAR_OPTIONS) -)
>
>  # pre/post-steps hooks
>  $(2)_PRE_DOWNLOAD_HOOKS         ?=
> --
> 1.9.1
>
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