[gentoo-dev] Re: How to pass list of paths to eclass?

[Ryan Hill]

Peter Volkov wrote:
> Some eclasses (kernel-2, font) use variable to pass space separated PATH
> to patch or fontconfig files from ebuild to eclass. In ebuild we use:
>
> FONT_CONF="path1 path2"
>
> Then eclasses use the variable:
>
> for conffile in ${FONT_CONF}; do
> 	...
> done
>
> The problem with this doesn't work if path{1,2} contain spaces. The
> solution I'm thinking about is to you arrays:
>
> FONT_CONF=("path1" "path2")
>
> for conffile in "${FONT_CONF[@]}"; do
> 	...
> done
>
> But is this good idea? Are there better?

I was also thinking about changing it to a function instead of a variable,
so ebuilds would do something like:

dofontconfig "${FILESDIR}"/50-myconfig "${FILESDIR}"/51-myotherconfig

dofontconfig() {
	insinto /etc/fonts/conf.avail/
	for conf in "$@"; do
		[[ -e ${conf} ]] && doins "${conf}"
	done
}

course this would require a bit of ebuild editing.  not many ebuilds
use FONT_CONF though.

on the other hand, the nicety of the variable is that font ebuilds
rarely need to contain a src_install.


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