www-client/firefox: install language packs as XPI file

Unpacked extensions are no longer supported. [Link 1]

Link 1: https://blog.mozilla.org/addons/2018/02/22/removing-support-unpacked-extensions/
Closes: https://bugs.gentoo.org/665352
Package-Manager: Portage-2.3.49, Repoman-2.3.10

2 files changed, 42 insertions, 2 deletions

diff --git a/eclass/mozextension.eclass b/eclass/mozextension.eclass
index 425da7e85bf1..68f401ee8661 100644
--- a/eclass/mozextension.eclass
+++ b/eclass/mozextension.eclass
@@ -91,5 +91,35 @@ xpi_install() {
 	doins -r "${x}"/* || die "failed to copy extension"
 }
 
+xpi_copy() {
+	local emid
+
+	# You must tell xpi_install which xpi to use
+	[[ ${#} -ne 1 ]] && die "$FUNCNAME takes exactly one argument, please specify an xpi to unpack"
+
+	x="${1}"
+	#cd ${x}
+	# determine id for extension
+	if [[ -f "${x}"/install.rdf ]]; then
+	emid="$(sed -n -e '/install-manifest/,$ { /em:id/!d; s/.*[\">]\([^\"<>]*\)[\"<].*/\1/; p; q }' "${x}"/install.rdf)" \
+		|| die "failed to determine extension id from install.rdf"
+	elif [[ -f "${x}"/manifest.json ]]; then
+		emid="$( sed -n 's/.*"id": "\([^"]*\)",.*/\1/p' "${x}"/manifest.json )" \
+			|| die "failed to determine extension id from manifest.json"
+	else
+		die "failed to determine extension id"
+	fi
+
+	if [[ -n ${MOZEXTENSION_TARGET} ]]; then
+		insinto "${MOZILLA_FIVE_HOME}"/${MOZEXTENSION_TARGET%/}
+	elif $(mozversion_extension_location) ; then
+		insinto "${MOZILLA_FIVE_HOME}"/browser/extensions
+	else
+		insinto "${MOZILLA_FIVE_HOME}"/extensions
+	fi
+
+	newins "${DISTDIR%/}"/${x##*/}.xpi ${emid}.xpi
+}
+
 _MOZEXTENSION=1
 fi
diff --git a/eclass/mozlinguas-v2.eclass b/eclass/mozlinguas-v2.eclass
index 77f1d0a439cf..73576e967fa6 100644
--- a/eclass/mozlinguas-v2.eclass
+++ b/eclass/mozlinguas-v2.eclass
@@ -124,13 +124,18 @@ esac
 # shouldn't (ie it is an alpha or beta package)
 : ${MOZ_FORCE_UPSTREAM_L10N:=""}
 
-
 # @ECLASS-VARIABLE: MOZ_TOO_REGIONALIZED_FOR_L10N
 # @INTERNAL
 # @DESCRIPTION:
 # Upstream identifiers that should not contain region subtags in L10N
 MOZ_TOO_REGIONALIZED_FOR_L10N=( fy-NL ga-IE gu-IN hi-IN hy-AM nb-NO nn-NO pa-IN sv-SE )
 
+# @ECLASS-VARIABLE: MOZ_INSTALL_L10N_XPIFILE
+# @DESCRIPTION:
+# Install langpacks as .xpi file instead of unpacked directory.
+# Leave unset to install unpacked
+: ${MOZ_INSTALL_L10N_XPIFILE:=""}
+
 # Add l10n_* to IUSE according to available language packs
 # No language packs for alphas and betas
 if ! [[ -n ${MOZ_GENERATE_LANGPACKS} ]] ; then
@@ -365,8 +370,13 @@ mozlinguas_src_install() {
 		done
 		popd > /dev/null || die
 	fi
+
 	for x in "${mozlinguas[@]}"; do
-		xpi_install "${WORKDIR}/${MOZ_P}-${x}${MOZ_LANGPACK_UNOFFICIAL:+.unofficial}"
+		if [[ -n ${MOZ_INSTALL_L10N_XPIFILE} ]]; then
+			xpi_copy "${WORKDIR}/${MOZ_P}-${x}${MOZ_LANGPACK_UNOFFICIAL:+.unofficial}"
+		else
+			xpi_install "${WORKDIR}/${MOZ_P}-${x}${MOZ_LANGPACK_UNOFFICIAL:+.unofficial}"
+		fi
 	done
 }