mirror of
https://github.com/rocketraman/sane-scan-pdf.git
synced 2025-05-27 20:50:08 -07:00
Use bash built-in tests, additional arg parsing checks
This commit is contained in:
Raman Gupta
parent
e9b606c1a7
commit
6b313943bb
74
scan
74
scan
@ -4,6 +4,8 @@ DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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DEVICE=fujitsu
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OUTPUT=scan.pdf
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OUTPUTARR=()
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USEOUTPUT=0
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USEARRAY=0
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APPEND=0
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RESOLUTION=300
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@ -35,7 +37,7 @@ cleanup()
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trap cleanup EXIT
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# Parse command-line options
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while [ $# -gt 0 ]; do
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while [[ $# > 0 ]]; do
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case "$1" in
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-v|--verbose) VERBOSE=1 ;;
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@ -72,21 +74,21 @@ while [ $# -gt 0 ]; do
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--skip-empty-pages) SKIP_EMPTY_PAGES=1 ;;
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-o|--output) shift; OUTPUT="$1" ;;
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-o|--output) shift; USEOUTPUT=1; OUTPUT="$1" ;;
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-l|--outputlist) shift; USEARRAY=1; OUTPUT=(); OUTPUT+=("$1") ;;
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-l|--outputlist) shift; USEARRAY=1; OUTPUTARR=(); OUTPUTARR+=("$1") ;;
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-x|--device) shift; DEVICE=$1;;
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-xo|--driver-options) shift; DRIVER_OPTION=$1;;
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*) if [ $USEARRAY = 1 ]; then OUTPUT+=("$1"); else echo >&2 "Unknown argument: $1"; exit 1; fi ;;
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*) if [[ $USEARRAY == 1 ]]; then OUTPUTARR+=("$1"); else echo >&2 "Unknown argument: $1"; exit 1; fi ;;
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esac
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shift # next option
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done
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if [ $HELP -eq 1 ]; then
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if [[ $HELP == 1 ]]; then
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echo "$(basename $0) [OPTIONS]... [OUTPUT]"
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echo ""
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echo "OPTIONS"
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@ -136,31 +138,45 @@ if [ $HELP -eq 1 ]; then
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exit 0
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fi
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if [ $USEARRAY = 0 -a -f "$OUTPUT" -a ! $APPEND = 1 ]; then
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echo >&2 "Output file $OUTPUT already exists. Delete or specify -a. Aborting."
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if [[ $USEARRAY == 1 && $USEOUTPUT == 1 ]]; then
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echo >&2 "Use one of -o or -l. Aborting."
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exit 1
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fi
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if [ "$OUTPUT" = "" ]; then
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if [[ $USEOUTPUT == 1 && "$OUTPUT" == "" ]]; then
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echo >&2 "Output file must be specified. Aborting."
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exit 1
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fi
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if [ $USEARRAY = 1 -a ! $APPEND = 1 ]; then
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for o in "${OUTPUT[@]}"; do
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if [ -f "$o" ]; then
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if [[ $USEOUTPUT == 1 && -f "$OUTPUT" && $APPEND != 1 ]]; then
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echo >&2 "Output file $OUTPUT already exists. Delete or specify -a. Aborting."
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exit 1
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fi
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if [[ $USEARRAY == 1 && ${#OUTPUTARR[@]} == 0 ]]; then
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echo >&2 "At least one file must be specified with -l. Aborting."
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exit 1
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fi
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if [[ $USEARRAY == 1 && $APPEND != 1 ]]; then
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for o in "${OUTPUTARR[@]}"; do
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if [[ -f "$o" ]]; then
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echo >&2 "Output file $o already exists. Delete or specify -a. Aborting."
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exit 1
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fi
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done
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fi
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if [[ $USEARRAY == 1 ]]; then
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OUTPUT=("${OUTPUTARR[@]}")
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fi
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SOURCE=""
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if [ $DUPLEX -eq 1 ]; then
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if [[ $DUPLEX == 1 ]]; then
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SOURCE="--source \"ADF Duplex\""
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fi
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if [ "$MAXPAGE" != "" ]; then
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if [[ "$MAXPAGE" != "" ]]; then
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MAXPAGE="-e $MAXPAGE"
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fi
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@ -181,19 +197,19 @@ case "$SIZE" in
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esac
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if [ $CROP != 1 -a "$PGHEIGHT" != "" ]; then
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if [[ $CROP != 1 && "$PGHEIGHT" != "" ]]; then
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PGHEIGHTIN=$(units --compact -1 "$PGHEIGHT mm" 'in')
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PGHEIGHT="--page-height $PGHEIGHT -y $PGHEIGHT"
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PS2PDF_OPTS="-dEPSCrop"
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fi
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if [ $CROP != 1 -a "$PGWIDTH" != "" ]; then
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if [[ $CROP != 1 && "$PGWIDTH" != "" ]]; then
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PGWIDTHIN=$(units --compact -1 "$PGWIDTH mm" 'in')
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PGWIDTH="--page-width $PGWIDTH -x $PGWIDTH"
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PS2PDF_OPTS="-dEPSCrop"
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fi
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if [ $CROP = 1 ]; then
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if [[ $CROP == 1 ]]; then
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CROP="--swcrop=yes --ald=yes"
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# In duplex mode, the driver's buffer for the back side image will be larger than necessary, oh well
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# http://sane.10972.n7.nabble.com/Fujitsu-backend-and-iX500-scanning-page-longer-than-14-Inches-td19303.html
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@ -202,7 +218,7 @@ if [ $CROP = 1 ]; then
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PS2PDF_OPTS="-dEPSCrop"
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fi
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if [ $DESKEW = 1 ]; then
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if [[ $DESKEW == 1 ]]; then
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DESKEW="--swdeskew=yes"
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fi
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@ -216,7 +232,7 @@ export PGHEIGHTIN
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export PS2PDF_OPTS
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export SKIP_EMPTY_PAGES
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if [ $VERBOSE = 1 ]; then
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if [[ $VERBOSE == 1 ]]; then
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LOCKFILE=$(mktemp)
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trap "cleanup; rm -rf $LOCKFILE" EXIT
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export LOCKFILE
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@ -229,24 +245,24 @@ eval scanadf -d "$DEVICE" $MAXPAGE $PGHEIGHT $PGWIDTH -S $SCRIPT --script-wait -
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shopt -s extglob nullglob
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pdffiles=($TMP_DIR/scan-[0-9]*.pdf)
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numscans=${#pdffiles[@]}
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if [ $numscans -gt 0 ]; then
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if [[ $numscans > 0 ]]; then
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echo "Processing $numscans pages"
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if [ $numscans -gt $TRUNCPAGE -a $TRUNCPAGE -gt 0 ]; then
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if [[ $numscans > $TRUNCPAGE && $TRUNCPAGE > 0 ]]; then
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for x in ${pdffiles[@]:$numscans-$TRUNCPAGE:$TRUNCPAGE}; do rm "$x"; done;
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pdffiles=(${pdffiles[@]:0:$numscans-$TRUNCPAGE})
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echo "Truncated $TRUNCPAGE pages"
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fi
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if [ $numscans -gt 1 -a $USEARRAY = 1 ]; then
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if [[ $numscans > 1 && $USEARRAY == 1 ]]; then
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echo "Naming pdfs based on output list..."
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output_count=${#OUTPUT[@]}
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index=0
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while [ "$index" -lt "$output_count" ]; do
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while [[ "$index" < "$output_count" ]]; do
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let "scanno = $index + 1"
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if [ -f "${OUTPUT[$index]}" ]; then
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if [[ -f "${OUTPUT[$index]}" ]]; then
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mv "${OUTPUT[$index]}" "${OUTPUT[$index]}.orig"
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if [ $APPEND -eq 1 ]; then
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if [[ $APPEND == 1 ]]; then
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pdffiles=()
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if [ -f "${OUTPUT[$index]}.orig" ]; then
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if [[ -f "${OUTPUT[$index]}.orig" ]]; then
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pdffiles+=("${OUTPUT[$index]}.orig")
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fi
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pdffiles+=($TMP_DIR/scan-*(0)$scanno.pdf)
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@ -259,19 +275,19 @@ if [ $numscans -gt 0 ]; then
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fi
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let "index = $index + 1"
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done
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elif [ $numscans -gt 1 -o $APPEND -eq 1 ]; then
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elif [[ $numscans > 1 || $APPEND == 1 ]]; then
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echo "Concatenating pdfs..."
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if [ -f "$OUTPUT" ]; then
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if [[ -f "$OUTPUT" ]]; then
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mv "$OUTPUT" "${OUTPUT}.orig"
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fi
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pdffiles=()
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if [ -f "${OUTPUT}.orig" ]; then
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if [[ -f "${OUTPUT}.orig" ]]; then
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pdffiles+=("${OUTPUT}.orig")
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fi
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pdffiles+=($TMP_DIR/scan-[0-9]*.pdf)
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pdfunite "${pdffiles[@]}" "$OUTPUT" && rm $TMP_DIR/scan-[0-9]*.pdf
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else
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if [ $USEARRAY = 1 ]; then
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if [[ $USEARRAY == 1 ]]; then
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mv $TMP_DIR/scan-0*.pdf "${OUTPUT[0]}"
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else
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mv $TMP_DIR/scan-0*.pdf "$OUTPUT"
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20
scan_perpage
20
scan_perpage
@ -21,14 +21,14 @@ usage()
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log()
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{
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if [ $VERBOSE = 1 ]; then
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if [[ $VERBOSE == 1 ]]; then
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echo "scan_perpage: $1"
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fi
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}
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logstdout()
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{
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if [ $VERBOSE = 1 ]; then
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if [[ $VERBOSE == 1 ]]; then
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cat
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else
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cat > /dev/null
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@ -37,7 +37,7 @@ logstdout()
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runconstrained()
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{
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if [ -x "$(command -v sem)" ]; then
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if [[ -x "$(command -v sem)" ]]; then
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# use up to 75% of the cores available
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sem --jobs 75% --id scan_perpage --fg "$@"
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else
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@ -45,12 +45,12 @@ runconstrained()
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fi
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}
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if [ $# -lt 1 ]; then
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if [[ $# < 1 ]]; then
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usage
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exit 1
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fi
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if [ "$UNPAPER" == "" -o "$SEARCHABLE" == "" -o "$RESOLUTION" == "" -o "$RESOLUTION" == "" -o "$SKIP_EMPTY_PAGES" == "" ]; then
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if [[ "$UNPAPER" == "" || "$SEARCHABLE" == "" || "$RESOLUTION" == "" || "$RESOLUTION" == "" || "$SKIP_EMPTY_PAGES" == "" ]]; then
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usage
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exit 1
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fi
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@ -74,16 +74,16 @@ process_page() {
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PP_PREFIX=
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if (( $(echo "$PERCENTAGE_WHITE < 99.8" | bc -l) )); then
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if [ $UNPAPER -eq 1 ]; then
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if [[ $UNPAPER == 1 ]]; then
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log "Applying unpaper post-processing to image data..."
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PP_PREFIX="unpaper-"
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if [ $VERBOSE = 1 ]; then
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if [[ $VERBOSE == 1 ]]; then
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UNPAPERVERBOSE="-v"
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fi
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#runconstrained unpaper $UNPAPERVERBOSE --no-mask-scan --overwrite --dpi $RESOLUTION --no-blackfilter $IMAGE_FILE $PP_PREFIX$IMAGE_FILE | logstdout
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runconstrained unpaper $UNPAPERVERBOSE --overwrite --dpi $RESOLUTION $IMAGE_PATH $IMAGE_DIR/$PP_PREFIX$IMAGE_FILE | logstdout
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fi
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if [ $SEARCHABLE -eq 1 ]; then
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if [[ $SEARCHABLE == 1 ]]; then
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log "Converting image data to searchable pdf..."
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# tesseract uses the input's DPI header, we need to convert to a format that supports this (like tiff)
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runconstrained convert -density ${RESOLUTION}x${RESOLUTION} -units PixelsPerInch $IMAGE_DIR/$PP_PREFIX$IMAGE_FILE $IMAGE_DIR/$PP_PREFIX${IMAGE_FILE}.tiff | logstdout
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@ -91,7 +91,7 @@ process_page() {
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[[ -f $IMAGE_DIR/$PP_PREFIX${IMAGE_FILE}.tiff ]] && rm $IMAGE_DIR/$PP_PREFIX${IMAGE_FILE}.tiff
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else
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log "Converting image data to pdf..."
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if [ "$PGWIDTHIN" == "" -o "$PGHEIGHTIN" == "" ]; then
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if [[ "$PGWIDTHIN" == "" || "$PGHEIGHTIN" == "" ]]; then
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PAGEOPTS="-equalpixels -dpi=$RESOLUTION -noturn"
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else
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PAGEOPTS="-imagewidth $PGWIDTHIN -imageheight $PGHEIGHTIN"
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@ -117,7 +117,7 @@ process_page() {
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log "Scan page processing done, status = $status"
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}
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if [ $VERBOSE = 1 ]; then
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if [[ $VERBOSE == 1 ]]; then
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(
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flock 200
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process_page
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