abuild.in: Add split package functions for elvish shell completion

abuild.in

@@ -596,6 +596,8 @@ subpkg_set() {
 			subpkgsplit=zshcomp
 		elif is_fishcomp_pkg "$subpkgname"; then
 			subpkgsplit=fishcomp
+		elif is_elvishcomp_pkg "$subpkgname"; then
+			subpkgsplit=elvishcomp
 		else
 			subpkgsplit="${subpkgname##*-}"
 		fi
@@ -959,6 +961,10 @@ prepare_subpackages() {
 		warning "Found /usr/share/fish/completions"
 		warning2 "Add \$pkgname-fish-completion to subpackages"
 	fi
+	if [ -d "$pkgdir"/usr/share/elvish/lib ]; then
+		warning "Found /usr/share/elvish/lib"
+		warning2 "Add \$pkgname-elvish-completion to subpackages"
+	fi
 }
 
 default_lang() {
@@ -1397,6 +1403,11 @@ is_fishcomp_pkg() {
 	test "${1%-fish-completion}" != "$1"
 }
 
+# returns true if this is the -elvish-completion package
+is_elvishcomp_pkg() {
+	test "${1%-elvish-completion}" != "$1"
+}
+
 # check that noarch is set if needed
 archcheck() {
 	options_has "!archcheck" && return 0
@@ -2213,6 +2224,18 @@ fishcomp() {
 	default_fishcomp
 }
 
+default_elvishcomp() {
+	depends=""
+	pkgdesc="Elvish completions for $pkgname"
+	install_if="$pkgname=$pkgver-r$pkgrel elvish"
+
+	amove usr/share/elvish/lib
+}
+
+elvishcomp() {
+	default_elvishcomp
+}
+
 default_pyc() {
 	pkgdesc="Precompiled Python bytecode for ${subpkgname%-pyc}"
 	install_if="${subpkgname%-pyc}=$pkgver-r$pkgrel pyc"