commandline parser
This commit is contained in:
Tilman Kranz
parent
833dbc798c
commit
77f79038da
161
photos2pdf
161
photos2pdf
@ -28,8 +28,7 @@ sigmoidal_contrast="45,50%"
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# Number of colors result images are quantized to
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posterize=6
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# Keep intermediate images after processing (note that they will be removed in
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# any case at the next run of this script)
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# Keep intermediate images after processing
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keep_tmpfiles=true
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# Paper size of all pages
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@ -42,10 +41,13 @@ offset="1cm 3cm"
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scale=0.75
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# PDF backdrop template directory
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templatedir=/var/lib/photos2pdf/templates
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templatedir=/var/lib/photos2pdf/template
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# Filename of complete result PDF
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result="pdf/result.pdf"
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result_filename="result.pdf"
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# Directory of original files to process (initially unset)
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dir=
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##
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# Functions
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@ -71,26 +73,127 @@ info() {
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log INFO "$1"
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}
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print_help() {
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cat << 'EOF'
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photos2pdf
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==========
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Description
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-----------
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Trim and brighten JPGs, produce PDF containing one photo per page.
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Usage
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-----
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```shell
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photos2pdf [OPTION ...] DIR
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```
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Arguments
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---------
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* `DIR`: Directory containing the original photos.
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Options
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-------
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* `--simplify INT`: Before morphology analysis, reduce
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image dimensions by this factor
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(default: 2).
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* `--morphology STRING`: Morphology to apply for trimming
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(default "Open:6").
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* `--morphology-shape STRING`: Shape of morphology to apply for
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trimming (default: "Disk").
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* `--colors INT`: Number of colors images are quantized
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to for component detection (default: 4).
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* `--connected-components INT`: Neighbors to evaluate when detecting
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connected components (default: 8).
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* `--area_treshold INT`: Area treshold for connected components
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detection (default: 1000).
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* `--sigmoidal-contrast-trim STRING`: Sigmoidal contrast adjustment
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used when trimming (default: "30,30%").
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* `--sigmoidal-contrast STRING`: Sigmoidal contrast adjustment visible
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in result images (default: "45,50%").
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* `--posterize INT`: Number of colors result images are
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quantized to (default: 6).
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* `--keep-tmpfiles true|false`: Keep temporary files (default: false).
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* `--paper STRING`: PDF page size (default: "a4paper").
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* `--offset STRING`: Offset in page where image should be
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placed (default: "1cm 3cm").
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* `--scale FLOAT`: Factor to scale image by before placing
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in page (default: 0.75).
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* `--templatedir STRING`: PDF backdrop directory (default:
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"/var/lib/photos2pdf/template").
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* `--result-filename STRING`: Filename of complete result PDF
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(default: "result.pdf").
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EOF
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}
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##
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# Arguments
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dir=$1
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i=1
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options_done=false
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if [[ -z $dir ]] ; then
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error "Usage: $0 DIR"
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fi
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while [[ $i -le $# ]] ; do
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arg=$(eval "echo \$$i")
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origdir=$(readlink -f "$dir")
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if ! "$options_done" ; then
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case "$arg" in
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-h|--help)
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print_help
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exit 0
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;;
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--simplify| \
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--morphology| \
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--morphology-shape| \
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--colors| \
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--connected-components| \
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--area-treshold| \
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--sigmoidal-contrast-trim| \
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--sigmoidal-contrast| \
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--posterize| \
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--keep-tmpfiles| \
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--paper| \
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--offset| \
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--scale| \
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--templatedir| \
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--result-filename)
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var=$(echo "$arg" | sed -e 's|^\-\-||;s|\-|_|g;')
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i=$((i+1))
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arg=$(eval "echo \$$i")
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eval "$var=\"$arg\""
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i=$((i+1))
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continue
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;;
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--)
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options_done=true
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i=$((i+1))
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continue
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;;
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-*)
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error "Unknown option \"$arg\"; aborted."
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;;
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esac
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fi
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if [[ ! -d $origdir ]] ; then
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error "Directory not found: $dir ($origdir)"
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fi
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case "$arg" in
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*)
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[[ -n $dir ]] && error "Only one input directory can be specified; aborted."
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dir=$arg
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i=$((i+1))
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;;
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esac
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done
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[[ -z $dir ]] && error "Usage: $0 [OPTION ..] DIR"
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##
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# Main Program
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job_id=$(printf "%s" "$origdir" | sha256sum | cut -d" " -f1)
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origdir=$(readlink -f "$dir")
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[[ -d $origdir ]] || error "Directory $dir not found; aborted."
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if [[ -n $TMP ]] ; then
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tmp_base=$TMP/photos2pdf/$job_id
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elif [[ -n $XDG_RUNTIME_DIR ]] ; then
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@ -99,10 +202,6 @@ else
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tmp_base=/tmp/photos2pdf/$job_id
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fi
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if ! mkdir -p "$tmp_base" ; then
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error "Could not create temporary workign directory $tmp_base; aborted"
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fi
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indir="$tmp_base/in"
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tmpdir="$tmp_base/tmp"
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outdir="$tmp_base/out"
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@ -189,9 +288,6 @@ for jpg in "$indir/"*.jpg ; do
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while(<>){
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chomp;
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next unless /(\d+)x(\d+)\+(\d+)\+(\d+)/;
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printf
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STDERR
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"DEBUG: component: $_\n";
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printf
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"rectangle %d,%d,%d,%d\n",
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$1, $2, $1+$3, $2+$4;
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@ -202,12 +298,6 @@ for jpg in "$indir/"*.jpg ; do
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uniq
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)
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printf "DEBUG: connected components in \"%s\":" "$tmp1"
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for d in "${draw[@]}" ; do
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printf " \"%s\"" "$d"
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done
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printf "\n"
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if ! convert \
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"$tmp1" \
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-fill black -colorize 100 \
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@ -250,13 +340,6 @@ for jpg in "$indir/"*.jpg ; do
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}
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' < "$inf")
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if ! "$keep_tmpfiles" ; then
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if ! rm -f -- "$tmp1" "$tmp2" "$trimmed" "$inf" ; then
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warning "Could not remove temporary files in \"$dir/tmp\"."
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rv=1
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fi
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fi
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info "Processing $base: crop=$crop ..."
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if ! convert \
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@ -307,7 +390,7 @@ for png in "out/"*.png ; do
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continue
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elif ! pdfjam \
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--quiet \
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--outfile tmp \
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--outfile "$tmpdir" \
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--paper "$paper" \
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"$jam_landscape" \
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--scale "$scale" \
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@ -334,15 +417,17 @@ while read -r pdf ; do
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input+=("$pdf")
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done < <(ls -- "$tmpdir/"*.backdropped.pdf)
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if ! pdftk "${input[@]}" cat output "$result" ; then
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warning "Could not concatenate \"$result\"."
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if ! pdftk "${input[@]}" cat output "$pdfdir/$result_filename" ; then
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warning "Could not concatenate \"$result_filename\"."
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rv=1
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elif ! rm -f -- "tmp/"*.pdf ; then
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warning "Could not remove tempfiles in \"$dir/tmp\"."
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elif ! "$keep_tmpfiles" ; then
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if ! rm -f -- "$tmp_base" ; then
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warning "Could not remove temporary files."
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rv=1
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fi
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fi
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if [[ $rv -ne 0 ]] ; then
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error "One or more errors during PDF generation; aborted." "$rv"
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error "One or more errors; aborted." "$rv"
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fi
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