tagpic

posix tagging gallery
git clone git://kloet.net/tagpic
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tagpic (3046B)

      1 #!/bin/sh
      2 
      3 #  Copyright (c) 2026 Andrew Kloet <andrew@kloet.net>
      4 #
      5 #  Permission to use, copy, modify, and distribute this software for any
      6 #  purpose with or without fee is hereby granted, provided that the above
      7 #  copyright notice and this permission notice appear in all copies.
      8 #
      9 #  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     10 #  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     11 #  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     12 #  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     13 #  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     14 #  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     15 #  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     16 
     17 set -e # errexit
     18 
     19 IMGDIR="${TAGPIC_IMGDIR:-$HOME/imgdir}"
     20 
     21 usage()
     22 {
     23 	echo "Usage: tagpic <command> [args...]" >&2
     24 	echo "Commands:" >&2
     25 	echo "  i, insert   <path/to/file> [tag1 tag2 ...]" >&2
     26 	echo "  d, delete   <filename>" >&2
     27 	echo "  m, modify   [-a|--append] <filename> [tag1 tag2 ...]" >&2
     28 	echo "  l, lookup   <filename>" >&2
     29 	exit 1
     30 }
     31 
     32 assert_file_exists()
     33 {
     34 	[ -f "$1" ] || { echo "${0##*/}: File '$1' not found." >&2; exit 1; }
     35 }
     36 
     37 delete_symlinks()
     38 {
     39 	_filename="$1"
     40 	_meta_dir="$IMGDIR/meta/$_filename"
     41 
     42 	if [ -d "$_meta_dir" ]; then
     43 		for _tag_link in "$_meta_dir"/*; do
     44 			[ -L "$_tag_link" ] || continue
     45 			_tag="${_tag_link##*/}"
     46 			rm -f "$IMGDIR/$_tag/$_filename"
     47 		done
     48 		rm -rf "$_meta_dir"
     49 	fi
     50 }
     51 
     52 cmd_insert()
     53 {
     54 	[ "$#" -lt 1 ] && usage
     55 
     56 	_filepath="$1"
     57 	shift
     58 
     59 	assert_file_exists "$_filepath"
     60 	mkdir -p "$IMGDIR/all"
     61 
     62 	_ext="${_filepath##*.}"
     63 	_unixtime=$(date +%s)
     64 	_filename="${_unixtime}.${_ext}"
     65 
     66 	cp "$_filepath" "$IMGDIR/all/$_filename"
     67 	mkdir -p "$IMGDIR/meta/$_filename"
     68 
     69 	for _tag do
     70 		mkdir -p "$IMGDIR/$_tag"
     71 		ln -s "../all/$_filename" "$IMGDIR/$_tag/$_filename"
     72 		ln -s "$IMGDIR/$_tag" "$IMGDIR/meta/$_filename/$_tag"
     73 	done
     74 }
     75 
     76 cmd_delete()
     77 {
     78 	[ "$#" -ne 1 ] && usage
     79 	_filename="$1"
     80 
     81 	assert_file_exists "$IMGDIR/all/$_filename"
     82 
     83 	delete_symlinks "$_filename"
     84 	rm -f "$IMGDIR/all/$_filename"
     85 }
     86 
     87 cmd_modify()
     88 {
     89 	_append=0
     90 	if [ "$1" = "-a" ] || [ "$1" = "--append" ]; then
     91 		_append=1
     92 		shift
     93 	fi
     94 
     95 	[ "$#" -lt 1 ] && usage
     96 
     97 	_filename="$1"
     98 	shift
     99 
    100 	assert_file_exists "$IMGDIR/all/$_filename"
    101 
    102 	[ "$_append" -eq 0 ] && delete_symlinks "$_filename"
    103 	mkdir -p "$IMGDIR/meta/$_filename"
    104 
    105 	for _tag do
    106 		mkdir -p "$IMGDIR/$_tag"
    107 		ln -s "../all/$_filename" "$IMGDIR/$_tag/$_filename"
    108 		ln -s "$IMGDIR/$_tag" "$IMGDIR/meta/$_filename/$_tag"
    109 	done
    110 }
    111 
    112 cmd_lookup()
    113 {
    114 	[ "$#" -ne 1 ] && usage
    115 	_filename="$1"
    116 
    117 	assert_file_exists "$IMGDIR/all/$_filename"
    118 
    119 	_meta_dir="$IMGDIR/meta/$_filename"
    120 	if [ -d "$_meta_dir" ]; then
    121 		for _tag_link in "$_meta_dir"/*; do
    122 			[ -L "$_tag_link" ] || continue
    123 			printf '%s\n' "${_tag_link##*/}"
    124 		done
    125 	fi
    126 }
    127 
    128 case "$1" in
    129 	i|insert) shift; cmd_insert "$@" ;;
    130 	d|delete) shift; cmd_delete "$@" ;;
    131 	m|modify) shift; cmd_modify "$@" ;;
    132 	l|lookup) shift; cmd_lookup "$@" ;;
    133 	*) usage ;;
    134 esac