Create grub-helper function grub_build_font

The idea is to build a font from source and then make a PF2 format
file from it using grub-mkfont.  This cuts down on the number of
binary files committed to history in the repository.

1 files changed, 26 insertions, 0 deletions

diff --git a/projects/grub/grub-helper b/projects/grub/grub-helper
index 3e1420ac..e7e8a1fe 100755
--- a/projects/grub/grub-helper
+++ b/projects/grub/grub-helper
@@ -17,6 +17,9 @@
 
 ARCH='arch'
 CONFIG='config'
+FONTS='fonts'
+FONT_FILE='font-file'
+FONT_PROJECT='font-project'
 FORMAT='format'
 MODMIN='modules-minimal'
 PLATFORM='platform'
@@ -27,6 +30,14 @@ grub_arch() {
 	project_file_contents "${project}" "${CONFIGS}" "${ARCH}" "$@"
 }
 
+grub_font_file() {
+	project_file_contents "${project}" "${CONFIGS}" "${FONT_FILE}" "$@"
+}
+
+grub_font_project() {
+	project_file_contents "${project}" "${CONFIGS}" "${FONT_PROJECT}" "$@"
+}
+
 grub_format() {
 	project_file_contents "${project}" "${CONFIGS}" "${FORMAT}" "$@"
 }
@@ -60,6 +71,21 @@ grub_copy_modules() {
 	cp -a "${grub_module_dir}"/*.@(mod|lst) "${keep_dir}"
 }
 
+grub_build_font() {
+	# Font project-specific filenames and paths
+	local font_file="$(grub_font_file "${FONTS}" "$@")"
+	local font_project="$(grub_font_project "${FONTS}" "$@")"
+	local font_build_dir="${root}/${BUILD}/${font_project}"
+
+	local grub_mkfont="${sources_path}/grub-mkfont"
+
+	# GRUB font directory for outputting the built PF2 file
+	mkdir -p "${build_path}/${FONTS}"
+
+	"${grub_mkfont}" --output="${build_path}/${FONTS}/${font_file%.*}.pf2" \
+			 "${font_build_dir}/${font_file}"
+}
+
 grub_build_utils() {
 	(
 		# If arch and/or platform files don't exist,