[Buildroot] [PATCH 15/21 RFC] core/pkg-generic: add macro to hardlink-or-copy
Luca Ceresoli
luca at lucaceresoli.net
Wed Nov 18 15:40:17 UTC 2015
Dear Yann,
Yann E. MORIN wrote:
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
> Cc: Luca Ceresoli <luca at lucaceresoli.net>
> ---
> package/pkg-generic.mk | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index 544ae5c..82fbeb0 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -305,6 +305,24 @@ endif
> endef
>
> ################################################################################
> +# hardlink-copy -- hardlink source and destination if possible, otherwise
> +# do a simple copy
> +#
> +# argument 1 is the source
> +# argument 2 is the destination *directory*
> +#
> +# example:
> +# $(call hard-link-copy,source,destination)
> +#
> +# Note: we make that a single command, so se can:
> +# - use '$(Q)' in front of it and properly silence the whole macro,
> +# - use '|| exit 1' after it, so we can exit on error in compound commands.
> +################################################################################
> +define hardlink-copy
> + { mkdir -p $(2) && { cp -l $(1) $(2) 2>/dev/null || cp $(1) $(2); } }
> +endef
> +
Good idea! But wouldn't it fit better in pkg-utils.mk? Indeed it's very
generic.
--
Luca
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