update/*/*: unified scanning of revisions/sources

update/blobs/download and update/project/repo both use
the same logic, for setting variables with awk and a
specially formatted configuration file.

unify this logic under include/option.sh, and use that.

Signed-off-by: Leah Rowe <leah@libreboot.org>

include/option.sh

@@ -1,4 +1,6 @@
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
+# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
+# SPDX-FileCopyrightText: 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
 # SPDX-FileCopyrightText: 2023 Leah Rowe <leah@libreboot.org>
 
 listitems()
@@ -16,3 +18,26 @@ listitems()
 	done
 	return ${rval}
 }
+
+scan_config()
+{
+	awkstr=" /\{.*${1}.*}{/ {flag=1;next} /\}/{flag=0} flag { print }"
+	confdir="${2}"
+	_fail="${3}"
+	revfile="$(mktemp -t sources.XXXXXXXXXX)" || \
+	    "${_fail}" "scan_config: Cannot initialise tmpfile"
+	cat "${confdir}/"* > "${revfile}" || \
+	    "${_fail}" "scan_config: Cannot concatenate files"
+	while read -r line ; do
+		set ${line} 1>/dev/null 2>/dev/null || :
+		if [ "${1%:}" = "depend" ]; then
+			depend="${depend} ${2}"
+		else
+			eval "${1%:}=\"${2}\""
+		fi
+	done << EOF
+	$(eval "awk '${awkstr}' \"${revfile}\"")
+EOF
+	rm -f "${revfile}" || \
+	    "${_fail}" "scan_config: Cannot remove tmpfile"
+}

script/update/blobs/download

@@ -7,6 +7,7 @@
 . "include/err.sh"
 . "include/blobutil.sh"
 . "include/mrc.sh"
+. "include/option.sh"
 
 export PATH="${PATH}:/sbin"
 
@@ -15,10 +16,11 @@ main()
 	[ $# -gt 0 ] || err "No argument given"
 	board="${1}"
 	boarddir="${cbcfgsdir}/${board}"
+	_b="${board%%_*mb}" # shorthand (avoid duplicating config per rom size)
 
 	check_defconfig "${boarddir}" || exit 0
 	detect_firmware && exit 0
-	scan_sources_config
+	scan_config "${_b}" "config/blobs" "err"
 
 	build_dependencies
 	download_blobs
@@ -36,29 +38,19 @@ detect_firmware()
 	printf "Blobs not needed for: %s\n" "${board}" 1>&2
 }
 
-scan_sources_config()
-{
-	_b=${board%%_*mb} # shorthand to avoid duplicating config per rom size
-	awkstr=" /\{.*${_b}.*}{/ {flag=1;next} /\}/{flag=0} flag { print }"
-	while read -r line ; do
-		set ${line} 1>/dev/null 2>/dev/null
-		eval "${1}=\"${2}\""
-	done << EOF
-	$(eval "awk '${awkstr}' config/blobs/sources")
-EOF
-}
-
 build_dependencies()
 {
-	[ -d ${cbdir} ] || ./update project trees coreboot ${cbdir##*/} || \
-	    err "build_dependencies: can't fetch ${cbdir}"
+	[ -d ${cbdir} ] || \
+		./update project trees coreboot ${cbdir##*/} || \
+		    err "build_dependencies: can't fetch ${cbdir}"
 	for d in uefitool biosutilities bios_extract me_cleaner; do
 		[ -d "${d}" ] && continue
 		./update project repo "${d}" || \
 		    err "build_dependencies: can't fetch ${d}"
 	done
-	[ -f uefitool/uefiextract ] || ./handle make file -b uefitool || \
-	    err "build_dependencies: can't build uefitool"
+	[ -f uefitool/uefiextract ] || \
+		./handle make file -b uefitool || \
+		    err "build_dependencies: can't build uefitool"
 	[ -f "${cbdir}/util/kbc1126/kbc1126_ec_dump" ] || \
 		make -C "${cbdir}/util/kbc1126" || \
 		    err "build_dependencies: can't build kbc1126_ec_dump"

script/update/project/repo

@@ -6,10 +6,11 @@
 
 . "include/err.sh"
 . "include/git.sh"
+. "include/option.sh"
 
 name=""
-revision=""
-location=""
+rev=""
+loc=""
 url=""
 bkup_url=""
 tmp_dir="${PWD}/tmp/gitclone"
@@ -22,7 +23,7 @@ main()
 	[ -z "${1+x}" ] && fail 'main(): name not set'
 	name=${1}
 
-	read_config
+	scan_config "${name}" "config/git" "fail"
 	verify_config
 
 	clone_project
@@ -34,41 +35,10 @@ main()
 	rm -Rf "${tmp_dir}" || fail "cannot remove tmpdir, ${tmp_dir}"
 }
 
-read_config()
-{
-	revfile="$(mktemp -t gitrevisions.XXXXXXXXXX)" || \
-	    fail "read_config: Cannot initialise tmpfile"
-
-	cat config/git/* > "${revfile}" || \
-	    fail "read_config: Cannot concatenate revision files"
-
-	awkstr=" /\{.*${name}.*}{/ {flag=1;next} /\}/{flag=0} flag { print }"
-	while read -r line ; do
-		set ${line} || fail "read_config: set line"
-		case ${line} in
-		rev:*)
-			revision=${2} ;;
-		loc:*)
-			location=${2} ;;
-		url:*)
-			url=${2} ;;
-		bkup_url:*)
-			bkup_url=${2} ;;
-		depend:*)
-			depend="${depend} ${2} " ;;
-		esac
-	done << EOF
-	$(eval "awk \"${awkstr}\" \"${revfile}\"")
-EOF
-
-	rm -f "${revfile}" || \
-	    fail "read_config: can't remove tmp revfile"
-}
-
 verify_config()
 {
-	[ -z "${revision+x}" ] && fail 'verify_config: revision not set'
-	[ -z "${location+x}" ] && fail 'verify_config: location not set'
+	[ -z "${rev+x}" ] && fail 'verify_config: rev not set'
+	[ -z "${loc+x}" ] && fail 'verify_config: loc not set'
 	[ -z "${url+x}" ] && fail 'verify_config: url not set'
 }
 
@@ -79,24 +49,24 @@ clone_project()
 
 	git clone ${url} "${tmp_dir}" || git clone ${bkup_url} "${tmp_dir}" || \
 	    fail "clone_project: could not download ${name}"
-	git_reset_rev "${tmp_dir}" "${revision}" "fail" || \
-	    fail "clone_project ${location}/: cannot reset <- ${revision}"
+	git_reset_rev "${tmp_dir}" "${rev}" "fail" || \
+	    fail "clone_project ${loc}/: cannot reset <- ${rev}"
 	git_am_patches "${tmp_dir}" "${PWD}/config/${name}/patches" "fail" || \
-	    fail "clone_project ${location}/: cannot apply patches"
+	    fail "clone_project ${loc}/: cannot apply patches"
 
-	[ ! -d "${location}" ] || \
-		rm -Rf "${location}" || \
-		    fail "clone_project: Can't remove directory '${location}'"
-	[ "${location}" = "${location%/*}" ] || mkdir -p ${location%/*} || \
+	[ ! -d "${loc}" ] || \
+		rm -Rf "${loc}" || \
+		    fail "clone_project: Can't remove directory '${loc}'"
+	[ "${loc}" = "${loc%/*}" ] || mkdir -p ${loc%/*} || \
 	    fail "clone_project: cannot make directory for ${name}"
-	mv "${tmp_dir}" "${location}" || \
+	mv "${tmp_dir}" "${loc}" || \
 	    fail "clone_project: could not copy temp file to destination"
 }
 
 fail()
 {
-	for x in "${location}" "${tmp_dir}"; do
-		[ -z "${x}" ] || [ ! -d "${x}" ] || rm -Rf "${location}" || :
+	for x in "${loc}" "${tmp_dir}"; do
+		[ -z "${x}" ] || [ ! -d "${x}" ] || rm -Rf "${loc}" || :
 	done
 	usage
 	err "${1}"