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https://codeberg.org/libreboot/lbmk.git
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c12965f8e4
instead of copying to a temp file and then concatenating with padding back to the main file, we concatenate and create the temp file, then move the temp file back to the main file. this is because cat can be quite error prone, more so than mv, so this will reduce the chance of corrupt files being left behind depending on the context (of course, the latter is often avoided due to xbmk's design, which emphasises use of temporary files first). this matches the same design used in the function unpad_one_byte, which creates the deconcatenated output in a temporary file first, moving it back. Signed-off-by: Leah Rowe <leah@libreboot.org>
142 lines
3.1 KiB
Bash
142 lines
3.1 KiB
Bash
# SPDX-License-Identifier: GPL-3.0-only
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# Copyright (c) 2022 Caleb La Grange <thonkpeasant@protonmail.com>
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# Copyright (c) 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
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# Copyright (c) 2020-2025 Leah Rowe <leah@libreboot.org>
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# Copyright (c) 2025 Alper Nebi Yasak <alpernebiyasak@gmail.com>
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cbfstool="elf/coreboot/default/cbfstool"
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rmodtool="elf/coreboot/default/rmodtool"
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remkdir()
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{
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x_ rm -Rf "$@"
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x_ mkdir -p "$@"
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}
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mkrom_tarball()
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{
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update_xbmkver "$1"
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mktarball "$1" "${1%/*}/${relname}_${1##*/}.tar.xz"
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x_ rm -Rf "$1"
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}
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update_xbmkver()
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{
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printf "%s\n" "$version" > "$1/.version" || err "$1 !version"; :
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printf "%s\n" "$versiondate" > "$1/.versiondate" || err "$1 !vdate"; :
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}
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mktarball()
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{
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printf "Creating tar archive '%s' from directory '%s'\n" "$2" "$1"
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[ "${2%/*}" = "$2" ] || x_ mkdir -p "${2%/*}"
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x_ tar -c "$1" | xz -T$XBMK_THREADS -9e > "$2" || err "mktarball2, $1"
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}
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e()
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{
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es_t="e" && [ $# -gt 1 ] && es_t="$2"
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es2="already exists"
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estr="[ -$es_t \"\$1\" ] || return 1"
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[ $# -gt 2 ] && estr="[ -$es_t \"\$1\" ] && return 1" && es2="missing"
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eval "$estr"
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printf "%s %s\n" "$1" "$es2" 1>&2
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}
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setvars()
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{
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_setvars=""
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if [ $# -lt 2 ]; then
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printf "err \"setvars: too few args\\n\""
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return 0
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fi
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val="$1"
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shift 1
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while [ $# -gt 0 ]; do
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printf "%s=\"%s\"\n" "$1" "$val"
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shift 1
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done
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}
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setcfg()
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{
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[ $# -gt 1 ] && printf "e \"%s\" f missing && return %s;\n" "$1" "$2"
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[ $# -gt 1 ] || \
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printf "e \"%s\" f not && err \"Missing config\";\n" "$1"
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printf ". \"%s\" || err \"Could not read config\";\n" "$1"
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}
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chkvars()
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{
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while [ $# -gt 0 ]; do
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eval "[ -n \"\${$1+x}\" ] || err \"$1 unset\""
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eval "[ -n \"\$$1\" ] || err \"$1 unset\"; shift 1; :"
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done; :
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}
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# return 0 if project is single-tree, otherwise 1
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# e.g. coreboot is multi-tree, so 1
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singletree()
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{
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( fx_ "eval exit 1 && err" find "config/$1/"*/ -type f \
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-name "target.cfg" ) || return 1; :
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}
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findpath()
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{
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[ $# -gt 0 ] || err "findpath: No arguments provided"
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while [ $# -gt 0 ]; do
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found="`readlink -f "$1" 2>/dev/null`" || return 1; :
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[ -n "$found" ] || found="`realpath "$1" 2>/dev/null`" || \
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return 1; :
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printf "%s\n" "$found"
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shift 1
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done
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}
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pad_one_byte()
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{
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paddedfile="`mktemp`" || err "mktemp pad_one_byte"
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x_ cat "$1" config/data/coreboot/0 > "$paddedfile" || err "!pad $1"; :
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x_ mv "$paddedfile" "$1"
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}
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unpad_one_byte()
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{
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xromsize="$(expr $(stat -c '%s' "$1") - 1)" || err "!int"
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[ $xromsize -lt 524288 ] && err "too small, $xromsize: $1"
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unpaddedfile="`mktemp`" || err "mktemp unpad_one_byte"
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x_ dd if="$1" of="$unpaddedfile" bs=$xromsize count=1
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x_ mv "$unpaddedfile" "$1"
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}
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fx_()
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{
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fd="`mktemp`" && x_ rm -f "$fd" && x_ touch "$fd"
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xx="$1" && shift 1
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"$@" 2>/dev/null | sort 1>"$fd" 2>/dev/null || err "FATAL: !sort fx_"
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dx_ "$xx" "$fd" || :
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x_ rm -f "$fd"
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}
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dx_()
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{
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[ ! -f "$2" ] || while read -r fx; do
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$1 "$fx" || return 1; :
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done < "$2" || err "dx_ $*: cannot read '$2'"; :
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}
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x_()
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{
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[ $# -lt 1 ] || [ -n "$1" ] || err "Empty first arg: x_ $(echo "$@")"
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[ $# -lt 1 ] || "$@" || err "Unhandled error for: $(echo "$@")"; :
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}
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err()
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{
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[ $# -lt 1 ] || printf "ERROR %s: %s\n" "$0" "$1" 1>&2 || :
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exit 1
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}
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