user/bkphotorights

   1 #!/usr/bin/env bash
   2 # Desc: Apply metadata to photos with exiftool
   3 # Usage: bkphotorights [FILE in]
   4 # Ref/Attrib: [1]. Creative Commons XMP recommendation. (2015). https://wiki.creativecommons.org/wiki/XMP
   5 #             [2]. Eva, Johannes. (2023-03-30). “How to edit EXIF metadata via the command line with ExifTool”. libre-software.net. https://libre-software.net/linux/edit-metadata-exiftool/
   6 #             [2]. “XMP Tags”. (2023-06-08). exiftool.org. https://exiftool.org/TagNames/XMP.html
   7 # Version: 0.2.0
   8 # Depends: * exiftool 12.16 (https://exiftool.org/ )
   9 #          * bash 5.1.16
  10 # Example: bkphotorights DSC00035.JPG
  11 # Note: Change strCreator, strCreatorURL, strTerms, and strLicenseURL
  12 #   values that should be added as metadata to the specified photo.
  13
  14 # Adjust me
  15 strCreator="Steven Baltakatei Sandoval";
  16 strCreatorURL="https://baltakatei.com";
  17 strTerms="This work is licensed to the public under the Creative Commons Attribution-ShareAlike license http://creativecommons.org/licenses/by-sa/4.0/ .";
  18 strLicenseURL="http://creativecommons.org/licenses/by-sa/4.0/";
  19
  20 yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
  21 die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
  22 must() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails
  23 main() {
  24     declare -a cmd_args;
  25     file_in="$1";
  26
  27     # Check plumbing
  28     if [[ ! -f "$1" ]]; then die "FATAL:Not a file:$1"; fi;
  29     if ! command -v exiftool 1>/dev/random 2>&1; then
  30         die "FATAL:exiftool not available. See https://exiftool.org/ ."; fi;
  31
  32     # Check file
  33     # Check if exiftool recognizes the file format
  34     if ! exiftool -s -FileType "$file_in" 1>/dev/random; then
  35         yell "ERROR:File type not recognized by exiftool:$file_in";
  36     fi;
  37
  38     # Change file metadata
  39     unset cmd_args;
  40     cmd_args+=("exiftool");
  41     # cmd_args+=("-overwrite_original"); # hashtag reckless
  42
  43     value="$strTerms";
  44     cmd_args+=("-XMP-dc:Rights=""$value"); unset value;
  45
  46     value="True";
  47     cmd_args+=("-XMP-xmpRights:Marked=""$value"); unset value;
  48
  49     value="$strTerms";
  50     cmd_args+=("-XMP-xmpRights:UsageTerms=""$value"); unset value;
  51
  52     value="$strLicenseURL";
  53     cmd_args+=("-XMP-cc:license=""$value"); unset value;
  54
  55     value="$strCreator";
  56     cmd_args+=("-XMP-cc:AttributionName=""$value"); unset value;
  57
  58     value="$strCreatorURL";
  59     cmd_args+=("-XMP-cc:AttributionURL=""$value"); unset value;
  60
  61     cmd_args+=("$file_in");
  62
  63     # Execute command
  64     must "${cmd_args[@]}";
  65 }; # main program
  66
  67 main "$@";
  68
  69 # Author: Steven Baltakatei Sandoval
  70 # License: GPLv3+