23 lines
588 B
Bash
23 lines
588 B
Bash
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#!/usr/bin/env bash
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set -eo pipefail
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shopt -s globstar
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if [[ -n "$1" ]]; then cd "$1"; fi
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declare -A occurences
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for file in **/*; do
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if [[ ! -f "$file" || -L "$file" ]]; then continue; fi
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hash=$(xxh128sum "$file" | cut -f1 -d' ')
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occurence=${occurences[$hash]}
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if [[ -n "$occurence" ]]; then
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relpath=$(realpath -s --relative-to "$(dirname "$file")" "$occurence")
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ln -sf "$relpath" "$file"
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echo "symlinked ${file@Q} to ${relpath@Q}" >&2
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else
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echo "first occurence of $hash: ${file@Q}" >&2
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occurences[$hash]=$file
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fi
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done
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