diff options
| -rwxr-xr-x | scripts/combined-ext-image.sh | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/scripts/combined-ext-image.sh b/scripts/combined-ext-image.sh index 0c7b1d9..7ff287b 100755 --- a/scripts/combined-ext-image.sh +++ b/scripts/combined-ext-image.sh @@ -22,6 +22,8 @@ ## version history # * version 1: initial file format with num files / name / length / md5 checksum +set -e + ME="${0##*/}" usage() { @@ -38,7 +40,21 @@ IMG_OUT=$1; shift FILE_NUM=$(($# / 2)) FILES="" -printf "CE%02x%-32s%02x" $CE_VERSION "$IMG_TYPE" $FILE_NUM > $IMG_OUT +tmpdir="$( mktemp -d 2> /dev/null )" +if [ -z "$tmpdir" ]; then + # try OSX signature + tmpdir="$( mktemp -t 'ubitmp' -d )" +fi + +if [ -z "$tmpdir" ]; then + exit 1 +fi + +trap "rm -rf $tmpdir" EXIT + +IMG_TMP_OUT="${tmpdir}/out" + +printf "CE%02x%-32s%02x" $CE_VERSION "$IMG_TYPE" $FILE_NUM > "${IMG_TMP_OUT}" while [ "$#" -gt 1 ] do @@ -48,14 +64,15 @@ while [ "$#" -gt 1 ] [ ! -f "$file" ] && echo "$ME: Not a valid file: $file" && usage FILES="$FILES $file" md5=$(mkhash md5 "$file") - printf "%-32s%08x%32s" "$filename" $(stat -c "%s" "$file") "${md5%% *}" >> $IMG_OUT + printf "%-32s%08x%32s" "$filename" $(stat -c "%s" "$file") "${md5%% *}" >> "${IMG_TMP_OUT}" shift 2 done [ "$#" -eq 1 ] && echo "$ME: Filename not specified: $1" && usage -mv $IMG_OUT $IMG_OUT.tmp -dd if="$IMG_OUT.tmp" of="$IMG_OUT" bs=65536 conv=sync 2>/dev/null -rm $IMG_OUT.tmp +mv "${IMG_TMP_OUT}" "${IMG_TMP_OUT}".tmp +dd if="${IMG_TMP_OUT}.tmp" of="${IMG_TMP_OUT}" bs=65536 conv=sync 2>/dev/null +rm "${IMG_TMP_OUT}".tmp -cat $FILES >> $IMG_OUT +cat $FILES >> "${IMG_TMP_OUT}" +cp "${IMG_TMP_OUT}" "${IMG_OUT}" |