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90 lines
3.4 KiB
90 lines
3.4 KiB
2 years ago
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#!/bin/sh
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# Usage: prioritize [FILE] [OPTIONAL_DIRECTORY]
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file_path=$1
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directory=$2
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# Check if the target file exists
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if [ ! -f "$file_path" ]; then
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echo "Error: The file '$file_path' does not exist."
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exit 1
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fi
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# Get the hash of the target file
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hashchant "$file_path" > /dev/null
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target_hash=$(read-magic "$file_path" hash 2>/dev/null)
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# Get the directory the file is in, if a target directory was not provided as the second optional argument
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if [ -z "$directory" ]; then
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directory=$(dirname "$file_path")
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fi
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# Get the file's priority, or default to 0
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target_priority=$(read-magic "$file_path" priority 2>/dev/null || echo 0)
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# Retrieving the priority list from the directory's extended attributes
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priorities=$(read-magic "$directory" priorities 2>/dev/null)
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# If there are no priorities, we add the target file as the only priority
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if [ -z "$priorities" ] || [ "$priorities" = "Error: The attribute does not exist." ]; then
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enchant "$directory" priorities "$target_hash" > /dev/null
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enchant "$file_path" priority 1 > /dev/null
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echo "Prioritized '$(basename "$file_path")' as the only priority."
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exit 0
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fi
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# Get the priority of the first item in the current list of priorities
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first_hash=$(echo "$priorities" | cut -d',' -f1)
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first_file=$(get-card "$first_hash")
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first_priority=$(read-magic "$first_file" priority 2>/dev/null || echo 0)
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# If the target file is already the first priority, we exit
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if [ "$target_hash" = "$first_hash" ]; then
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echo "'$(basename "$file_path")' is already the highest priority."
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exit 0
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fi
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# Filter the target hash from the current priorities list, so it doesn't duplicate
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priorities=$(echo "$priorities" | tr ',' '\n' | sed "/^$target_hash\$/d" | tr '\n' ',' | sed 's/,$//')
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# If the target file's priority is already equal the first item's priority, reprioritize it with a higher priority
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if [ "$first_priority" -gt "0" ] && [ "$target_priority" = "$first_priority" ]; then
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rebuilt_priorities="$target_hash,$priorities"
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enchant "$file_path" priority $(($first_priority + 1)) > /dev/null
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enchant "$directory" priorities "$rebuilt_priorities" > /dev/null
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echo "Reprioritized '$(basename "$file_path")'."
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exit 0
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fi
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# Loop through the comma-delimited string of hashes in a POSIX-compliant way
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rebuilt_priorities=""
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added=0
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for hash in $(echo "$priorities" | tr ',' ' '); do
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file=$(get-card "$hash")
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current_priority=$(read-magic "$file" priority 2>/dev/null || echo 0)
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# If the target file's priority is already higher than the current hash's priority
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# or the current hash's priority is different from the first hash's priority
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# we insert the target file's hash at this point
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if [ ! $added ] && [ "$target_priority" -gt "$current_priority" ] || [ "$current_priority" != "$first_priority" ]; then
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rebuilt_priorities="$rebuilt_priorities$target_hash,"
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added=1
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fi
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rebuilt_priorities="$rebuilt_priorities$hash,"
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done
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# If we reached the end of the loop without adding the target hash, add it now
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if [ "$added" -eq 0 ]; then
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rebuilt_priorities="$rebuilt_priorities$target_hash"
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fi
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# Trim trailing comma
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rebuilt_priorities=$(echo "$rebuilt_priorities" | sed 's/,$//')
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# Setting the priority value of the target file to the value of the first item's priority
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enchant "$file_path" priority "$first_priority" > /dev/null
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# Updating the directory's extended attributes with the new priorities list
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enchant "$directory" priorities "$rebuilt_priorities" > /dev/null
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echo "Prioritized '$(basename "$file_path")'."
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