error handling code cleanup and fixes

in some cases, use of x_ or xx_ can be error-prone,
due to the way $@ is handled; commands requiring
quotes, or with funny file names as arguments such
as spaces in the file name, or other special
characters, can make the x/xx functions break.

in those cases, where x/xx must not be used, the
commands use || err instead

in other cases, use of x/xx is superfluous, and has
been removed in some commands.

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

include/git.sh

@@ -24,7 +24,7 @@ fetch_from_upstream()
 	[ -d "src/${project}/${project}" ] && return 0
 
 	x_ mkdir -p "src/${project}"
-	x_ fetch_project_repo "${project}"
+	fetch_project_repo "${project}"
 }
 
 fetch_config()
@@ -57,14 +57,13 @@ prepare_new_tree()
 	printf "Creating %s tree %s (%s)\n" "${project}" "${tree}" "${_target}"
 
 	x_ cp -R "src/${project}/${project}" "src/${project}/${tree}"
-	x_ git_reset_rev "src/${project}/${tree}" "${rev}"
+	git_reset_rev "src/${project}/${tree}" "${rev}"
 	(
 	x_ cd "src/${project}/${tree}"
 	git submodule update --init --checkout || \
 	    err "prepare_new_tree ${project}/${tree}: can't update git modules"
 	)
-	git_am_patches "${PWD}/src/${project}/${tree}" \
+	git_am_patches "$PWD/src/$project/$tree" "$PWD/$cfgsdir/$tree/patches"
-	    "${PWD}/${cfgsdir}/${tree}/patches"
 }
 
 fetch_project_repo()
@@ -76,7 +75,7 @@ fetch_project_repo()
 	[ -z "${depend}" ] || for d in ${depend} ; do
 		x_ ./update trees -f ${d}
 	done
-	x_ rm -Rf "${tmp_git_dir}"
+	rm -Rf "${tmp_git_dir}" || err "fetch_repo: !rm -Rf ${tmp_git_dir}"
 }
 
 verify_config()
@@ -89,8 +88,9 @@ verify_config()
 
 clone_project()
 {
-	x_ rm -Rf "${tmp_git_dir}"
+	rm -Rf "${tmp_git_dir}" || err "clone_project: !rm -Rf ${tmp_git_dir}"
-	x_ mkdir -p "${tmp_git_dir%/*}"
+	mkdir -p "${tmp_git_dir%/*}" || \
+	    err "clone_project: !mkdir -p ${tmp_git_dir%/*}"
 
 	loc="${loc#src/}"
 	loc="src/${loc}"
@@ -98,24 +98,20 @@ clone_project()
 	git clone ${url} "${tmp_git_dir}" || \
 	    git clone ${bkup_url} "${tmp_git_dir}" || \
 	    err "clone_project: could not download ${project}"
-	git_reset_rev "${tmp_git_dir}" "${rev}" || \
+	git_reset_rev "${tmp_git_dir}" "${rev}"
-	    err "clone_project ${loc}/: cannot reset <- ${rev}"
+	git_am_patches "${tmp_git_dir}" "${PWD}/config/${project}/patches"
-	git_am_patches "${tmp_git_dir}" "${PWD}/config/${project}/patches" || \
-	    err "clone_project ${loc}/: cannot apply patches"
 
 	x_ rm -Rf "${loc}"
 	[ "${loc}" = "${loc%/*}" ] || x_ mkdir -p ${loc%/*}
-	x_ mv "${tmp_git_dir}" "${loc}"
+	mv "${tmp_git_dir}" "${loc}" || \
+	    err "clone_project: !mv ${tmp_git_dir} ${loc}"
 }
 
 git_reset_rev()
 {
-	sdir="${1}"
-	_rev="${2}"
 	(
-	x_ cd "${sdir}"
+	cd "${1}" || err "git_reset_rev: !cd ${1}"
-	git reset --hard ${_rev} || \
+	git reset --hard ${2} || err "!git reset ${1} <- ${2}"
-	    err  "cannot git reset ${sdir} <- ${rev}"
 	)
 }
 
@@ -124,7 +120,7 @@ git_am_patches()
 	sdir="${1}" # assumed to be absolute path
 	patchdir="${2}" # ditto
 	(
-	x_ cd "${sdir}"
+	cd "${sdir}" || err "git_am_patches: !cd ${sdir}"
 	for patch in "${patchdir}/"*; do
 		[ -L "${patch}" ] && continue
 		[ -f "${patch}" ] || continue
@@ -136,8 +132,6 @@ git_am_patches()
 	)
 	for patches in "${patchdir}/"*; do
 		[ -L "${patches}" ] && continue
-		[ ! -d "${patches}" ] || \
+		[ -d "${patches}" ] && git_am_patches "${sdir}" "${patches}"
-			git_am_patches "${sdir}" "${patches}" err  || \
-			    err  "apply_patches: !${sdir}/ ${patches}/"
 	done
 }

include/option.sh

@@ -67,8 +67,7 @@ handle_coreboot_utils()
 			x_ mkdir -p "cbutils/${1}" && \
 			x_ cp "src/coreboot/${1}/util/${util}/${util}" \
 			    "cbutils/${1}"
-		[ -z "${mode}" ] || \
+		[ -z "${mode}" ] || x_ rm -Rf "cbutils/${1}"
-			x_ rm -Rf "cbutils/${1}"
 	done
 }
 

script/update/trees

@@ -18,8 +18,7 @@ eval "$(setvars "" arch cfgsdir codedir config config_name crossgcc_ada mode \
 
 main()
 {
-	while getopts f:b:m:u:c:x:s:l:n: option
+	while getopts f:b:m:u:c:x:s:l:n: option; do
-	do
 		_f="${1}"
 		case "${1}" in
 		-b) : ;;
@@ -38,11 +37,8 @@ main()
 	[ -z "${_f}" ] && err "missing flag (-m/-u/-b/-c/-x/-f/-s/-l/-n)"
 	[ -z "${project}" ] && err "project name not specified"
 
-	if [ ! -f "config/${project}/build.list" ]; then
+	[ -f "config/${project}/build.list" ] && build_targets $@ && return 0
 	build_projects $@
-	else
-		build_targets $@
-	fi
 }
 
 build_projects()
@@ -209,7 +205,7 @@ check_cross_compiler()
 	fi
 
 	# we *must* ensure that u-boot's build system uses crossgcc first
-	export PATH="$(pwd)/${cbdir}/util/crossgcc/xgcc/bin:$PATH"
+	export PATH="${PWD}/${cbdir}/util/crossgcc/xgcc/bin:$PATH"
 }
 
 check_config()

script/vendor/download

@@ -134,7 +134,7 @@ mkdirs()
 {
 	[ -f "${1}" ] && \
 		printf "mkdirs ${1} ${2}: already downloaded\n" 1>&2 && return 1
-	x_ mkdir -p "${1%/*}"
+	mkdir -p "${1%/*}" || err "mkdirs: !mkdir -p ${1%/*}"
 	x_ rm -Rf "${appdir}"
 	x_ mkdir -p "${appdir}/"
 	extract_archive "${_dl}" "${appdir}" || \
@@ -190,7 +190,7 @@ extract_kbc1126ec()
 	mv Rompaq/68*.BIN ec.bin || :
 	if [ ! -f ec.bin ]; then
 		unar -D ROM.CAB Rom.bin || unar -D Rom.CAB Rom.bin || \
-		    x_ unar -D 68*.CAB Rom.bin
+		    unar -D 68*.CAB Rom.bin || err "can't extract Rom.bin"
 		x_ mv Rom.bin ec.bin
 	fi
 	[ -f ec.bin ] || err "extract_kbc1126_ec ${board}: can't extract"
@@ -203,7 +203,8 @@ extract_kbc1126ec()
 	done
 	[ "${ec_ex}" = "y" ] || \
 	    err "extract_kbc1126_ec ${board}: didn't extract ecfw1/2.bin"
-	x_ cp "${appdir}/"ec.bin.fw* "${_dest%/*}/"
+	cp "${appdir}/"ec.bin.fw* "${_dest%/*}/" || \
+	    err "extract_kbc1126_ec ${board}: can't copy ec binaries"
 }
 
 extract_e6400vga()
@@ -221,7 +222,8 @@ extract_e6400vga()
 	[ -f "${E6400_VGA_romname}" ] || \
 		err "extract_e6400vga: can't extract vga rom from bios.bin"
 	)
-	x_ cp "${appdir}/${E6400_VGA_romname}" "${_dest}"
+	cp "${appdir}/${E6400_VGA_romname}" "${_dest}" || \
+	    err "extract_e6400vga ${board}: can't copy vga rom to ${_dest}"
 }
 
 extract_sch5545ec()

script/vendor/inject

@@ -78,7 +78,7 @@ detect_board()
 		_stripped_prefix=${filename#*_}
 		board="${_stripped_prefix%.tar.xz}" ;;
 	*)
-		err "detect_board: could not detect board type"
+		err "detect_board $filename: could not detect board type"
 	esac	
 	[ -d "${boarddir}/" ] || \
 		err "detect_board: dir, ${boarddir}, doesn't exist"
@@ -98,7 +98,10 @@ build_dependencies()
 
 inject_vendorfiles()
 {
-	[ "${release}" != "y" ] && x_ patch_rom "${rom}" && return 0
+	if [ "${release}" != "y" ]; then
+		patch_rom "${rom}"
+		return 0
+	fi
 	printf "patching release images\n"
 	patch_release_roms
 }
@@ -108,11 +111,12 @@ patch_release_roms()
 	_tmpdir="tmp/romdir"
 	x_ rm -Rf "${_tmpdir}"
 	x_ mkdir -p "${_tmpdir}"
-	x_ tar -xf "${archive}" -C "${_tmpdir}"
+	tar -xf "${archive}" -C "${_tmpdir}" || \
+	    err "patch_release_roms: !tar -xf \"${archive}\" -C \"${_tmpdir}\""
 
 	for x in "${_tmpdir}"/bin/*/*.rom ; do
 		printf "patching rom: %s\n" "$x"
-		x_ patch_rom "${x}"
+		patch_rom "${x}"
 	done
 	for x in "${_tmpdir}"/bin/*/*_nomicrocode.rom ; do
 		[ -f "${x}" ] || continue
@@ -123,7 +127,7 @@ patch_release_roms()
 	done
 
 	(
-	x_ cd "${_tmpdir}/bin/"*
+	x_ cd "${_tmpdir}/bin/"* # TODO: very dodgy, re-write accordingly
 
 	# NOTE: For compatibility with older rom releases, defer to sha1
 	[ "${nukemode}" = "nuke" ] || \
@@ -211,22 +215,28 @@ inject()
 
 	if [ "${_t}" = "GbE" ]; then
 		x_ mkdir -p tmp
-		x_ cp "${_dest}" "tmp/gbe.bin"
+		cp "${_dest}" "tmp/gbe.bin" || \
+		    err "inject: !cp \"${_dest}\" \"tmp/gbe.bin\""
 		_dest="tmp/gbe.bin"
-		x_ "${nvmutil}" "${_dest}" setmac "${new_mac}"
+		"${nvmutil}" "${_dest}" setmac "${new_mac}" || \
+		    err "inject ${_dest}: can't change mac address"
 	fi
 	if [ "${cbfsname}" = "IFD" ]; then
 		if [ "${nukemode}" != "nuke" ]; then
-			x_ "${ifdtool}" -i ${_t}:${_dest} "${rom}" -O "$rom"
+			"${ifdtool}" -i ${_t}:${_dest} "${rom}" -O "$rom" || \
+			    err "inject: can't insert $_t ($dest) into $rom"
 		else
-			x_ "${ifdtool}" --nuke ${_t} "${rom}" -O "${rom}"
+			"${ifdtool}" --nuke ${_t} "${rom}" -O "${rom}" || \
+			    err "inject ${rom}: can't nuke ${_t} in IFD"
 		fi
 	else
 		if [ "${nukemode}" != "nuke" ]; then
-			x_ "${cbfstool}" "${rom}" add -f "${_dest}" \
+			"${cbfstool}" "${rom}" add -f "${_dest}" \
-			    -n "${cbfsname}" -t ${_t} ${_offset}
+			    -n "${cbfsname}" -t ${_t} ${_offset} || \
+			    err "inject $rom: can't insert $_t file $_dest"
 		else
-			x_ "${cbfstool}" "${rom}" remove -n "${cbfsname}"
+			"${cbfstool}" "${rom}" remove -n "${cbfsname}" || \
+			    err "inject $rom: can't remove ${cbfsname}"
 		fi
 
 	fi