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21 lines
569 B
Bash
21 lines
569 B
Bash
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#!/bin/bash
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set -euo pipefail
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declare -A file_hashes
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find . -type f | while read -r file; do
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hash=$(sha256sum "$file" | awk '{print $1}')
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if [[ -n "${file_hashes[$hash]+_}" ]]; then
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# Duplicate found, replace with symlink to first copy
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first="${file_hashes[$hash]}"
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# Remove the duplicate file
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rm "$file"
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# Create symlink (relative path)
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ln -s "$(realpath --relative-to="$(dirname "$file")" "$first")" "$file"
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echo "Replaced duplicate: $file -> $first"
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else
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# First time seeing this hash
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file_hashes[$hash]="$file"
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fi
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done
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