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89 lines
3.3 KiB
89 lines
3.3 KiB
2 years ago
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#!/bin/sh
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# This "disenchant" script allows you to remove an extended attribute from a file.
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# To use this script, pass the file and the key name as arguments. If no key name is specified, the script will provide
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# a menu of the extended attribute keys on the file and allow you to select one with the arrow keys to delete.
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# The menu is only displayed if there are at least two extended attributes (not counting the '# file:' line).
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# If only one extended attribute is found, the script will delete that attribute without displaying the menu.
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# Disenchant a single attribute from a file
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disenchant_one() {
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key="$1"
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file="$2"
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if command -v xattr > /dev/null 2>&1; then
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# xattr is available, use it
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xattr -d "$key" "$file"
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elif command -v attr > /dev/null 2>&1; then
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# attr is available, use it
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attr -r "$key" "$file"
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elif command -v setfattr > /dev/null 2>&1; then
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# setfattr is available, use it
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setfattr -x "$key" "$file"
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else
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# xattr, attr, and setfattr are not available
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echo "Error: xattr, attr, and setfattr are not available on this system."
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exit 1
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fi
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echo "Disenchanted $key attribute from $file."
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}
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# Check if a file was given as an argument
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if [ -z "$1" ]; then
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# If no file was given, print an error message and exit
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echo "Error: No file specified. Usage: disenchant file [key]"
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exit 1
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fi
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# Read the extended attribute keys from the file
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keys=$(./read-magic "$1")
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# Extract the attribute keys from the output of read-magic
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keys=$(echo "$keys" | awk -F: '{print $1}' | tr -d ' ')
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echo $keys
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# Check if a key name was given as an argument
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if [ -z "$2" ]; then
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# If no key name was given, check if there are at least two extended attributes
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if [ $(echo "$keys" | wc -l) -lt 2 ]; then
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# If there is only one extended attribute, delete it
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key=$(echo "$keys")
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disenchant_one "$key" "$1"
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else
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# If there are at least two extended attributes, provide a menu of the keys and select one with the arrow keys
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keys="$keys disenchant-all"
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times=$(($(echo "$keys" | wc -l) + 1))
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desc="# disenchant this"
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descriptions=()
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for ((i = 1; i <= $times; i++)); do
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descriptions+=("$desc")
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done
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echo "${descriptions[@]}"
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menu "Choose which attribute to disenchant:" "$keys" $descriptions "menu_choice" # todo / problem: $descriptions needs to be a string but then it's only space-delimited so many commands cant work. solution is to refactor the menu script, splitting it up into many small and complete semantic scripts, and building a better more holistic and composed menu with lots of better building blocks. or using bmenu.
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echo $menu_choice
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key=${keys[$menu_choice]}
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if [ -n "$key" ]; then
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if [ "$key" = "disenchant all" ]; then
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# Disenchant all extended attributes
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for key in $keys; do
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disenchant_one "$key" "$1"
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done
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echo "Disenchanted all attributes from $1."
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break
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else
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# Disenchant the selected attribute
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echo KEY $key
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echo FILE $1
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disenchant_one "$key" "$1"
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break
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fi
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else
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# If no key was selected, print an error message and exit
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echo "Error: No key selected."
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exit 1
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fi
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fi
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else
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# If a key name was given, use it as the key
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key="$2"
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# Disenchant the selected attribute
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disenchant_one "$key" "$1"
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fi
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