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Diffstat (limited to 'pkgs/sources/scripts/source/apps/con2pdf.sh')
| -rwxr-xr-x | pkgs/sources/scripts/source/apps/con2pdf.sh | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/pkgs/sources/scripts/source/apps/con2pdf.sh b/pkgs/sources/scripts/source/apps/con2pdf.sh new file mode 100755 index 00000000..08bf8998 --- /dev/null +++ b/pkgs/sources/scripts/source/apps/con2pdf.sh @@ -0,0 +1,234 @@ +#! /usr/bin/env dash + +# shellcheck source=/dev/null +SHELL_LIBRARY_VERSION="2.1.2" . %SHELL_LIBRARY_PATH + +# needed for help() and version +# shellcheck disable=2034 +AUTHORS="Soispha" +# shellcheck disable=2034 +YEARS="2023" +# shellcheck disable=2034 +VERSION="1.0.0" + +# NAME is from the wrapper +# shellcheck disable=SC2269 +NAME="$NAME" +help() { + cat <<EOF +Scan images and turn them into a pdf. + +Usage: + $NAME [OPTIONS] --name --device + +OPTIONS: + --out-dir | -o [FILE] + Path to place the generated pdf files (default: ./pdf). + + --name | -n NAME + Name for the pdf files (e.g. <NAME>_1.pdf). + + --num-pages | -p NUM + Number of pages to merge into one pdf (default: 1). + + --device | -d DEVICE + Device used for scanning. + + --method | -m METHOD + Method to use for scanning (default: ADF). + + --help | -h + Display this help and exit. + + --version | -v + Display version and copyright information and exit. +ARGUMENTS: + FILE := [[fd . --max-depth 3]] + A name of a file to store, default is: ./pdf + + NAME | * := [[fd . --max-depth 3]] + The basename of the generated files + + NUM | *([0-9]) := 0 | 1 | 2 | 3 | 4 + Possible numbers of pages, can be more than 4 + + DEVICE := [[$(cat %DEVICE_FUNCTION)]] + Possible scanner names + + METHOD := ADF | Flatbed + The scanning method to use, not all scanners support both of + these. The default is ADF +EOF +} + +scan_adf() { + device="$1" + sides_per_page="$2" + method="ADF" + for i in $(seq "$sides_per_page"); do + do_until_success \ + "scanimage --format=tiff --progress --source='$method' --device='$device' --batch=%d.tif --batch-increment='$sides_per_page' --batch-start='$i'" \ + "warn 'Retrying scan, as we assume a network error!'" + + if [ "$sides_per_page" -ne 1 ]; then + msg "Finished turn, please change side!" + readp "Press enter to continue" noop + fi + done +} +process_images_adf() { + tiff_temp_path="$1" + output_directory="$2" + name="$3" + + counter=0 + pdf_counter=0 + image_cache="$(mktmp)" + while read -r scanned_image; do + dbg "$scanned_image (scanned_image) at $counter (counter)" + echo "$scanned_image" >>"$image_cache" + : $((counter += 1)) + if [ "$counter" = "$number_of_pages" ]; then + dbg "$counter == $number_of_pages" + counter=0 + convert_images "$image_cache" "${name}_$pdf_counter" "$output_directory" + : $((pdf_counter += 1)) + printf "" >"$image_cache" + fi + done <"$(tmp_pipe fd . "$tiff_temp_path" "|" sort -V)" +} + +scan_flatbed() { + device="$1" + number_of_pages"$2" + method="Flatbed" + for i in $(seq "$number_of_pages"); do + do_until_success \ + "scanimage --format=tiff --progress --source='$method' --device='$device' --output-file=$i.tiff" \ + "warn 'Retrying scan, as we assume a network error!'" + if [ "$number_of_pages" -ne 1 ]; then + msg "Finished turn, please change side!" + readp "Press enter to continue" noop + fi + done +} +process_images_flatbed() { + tiff_temp_path="$1" + output_directory="$2" + name="$3" + + counter=0 + image_cache="$(mktmp)" + while read -r scanned_image; do + echo "$scanned_image" >>"$image_cache" + : $((counter += 1)) + if [ "$counter" = "$number_of_pages" ]; then + counter=0 + convert_images "$image_cache" "$name" "$output_directory" + printf "" >"$image_cache" + fi + done <"$(tmp_pipe fd . "$tiff_temp_path" "|" sort -V)" +} +convert_images() { + image_cache="$1" + pdf_name="$2" + output_dir="$3" + + set -- + while read -r image; do + dbg "setting image: $image" + set -- "$@" "$image" + done <"$image_cache" + + while [ -e "$output_dir/${pdf_name}.pdf" ]; do + pdf_name="${pdf_name}_$(tr -dc 'A-Za-z0-9' </dev/urandom | head -c 25)" + done + dbg "using pdf_name: $pdf_name" + convert "$@" -compress jpeg -quality 100 "$output_dir/${pdf_name}.pdf" +} + +scan() { + number_of_pages="$1" + device="$2" + output_directory="$(readlink -f "$3")" + name="$4" + method="$5" + + [ -z "$number_of_pages" ] && die "Parameter 'number_of_pages' is not set!" + [ -z "$device" ] && die "Parameter 'device' is not set!" + [ -z "$output_directory" ] && die "Parameter 'output_directory' is not set!" + [ -z "$name" ] && die "Parameter 'name' is not set!" + [ -z "$method" ] && die "Parameter 'method' is not set!" + + tiff_temp_path="$(mktmp -d)" + cd "$tiff_temp_path" || die "Bug" + + msg "Started scanning..." + if [ "$method" = "Flatbed" ]; then + scan_flatbed "$device" "$number_of_pages" + else + scan_adf "$device" "$number_of_pages" + fi + + msg "Creating output directory..." + mkdir "$output_directory" + cd "$output_directory" || die "Bug" + + msg "Converting images to pdfs..." + if [ "$method" = "Flatbed" ]; then + process_images_flatbed "$tiff_temp_path" "$output_directory" "$name" + else + process_images_adf "$tiff_temp_path" "$output_directory" "$name" + fi +} + +for input in "$@"; do + case "$input" in + "--help" | "-h") + help + exit 0 + ;; + "--version" | "-v") + version + exit 0 + ;; + esac +done + +number_of_pages="1" +unset device +output_directory="$(pwd)/pdf" +unset name +method="ADF" + +while [ "$#" -ne 0 ]; do + case "$1" in + "--help" | "-h") ;; + "--version" | "-v") ;; + "--out-dir" | "-o") + shift 1 + output_directory="$1" + ;; + "--name" | "-n") + shift 1 + name="$1" + ;; + "--num-pages" | "-p") + shift 1 + number_of_pages="$1" + ;; + "--device" | "-d") + shift 1 + device="$1" + ;; + "--method" | "-m") + shift 1 + method="$1" + ;; + *) + die "Command line arg $1 does not exist. See --help for a list." + ;; + esac + shift 1 +done +scan "$number_of_pages" "$device" "$output_directory" "$name" "$method" |