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#!/bin/sh
# Contents of .git/hooks/pre-commit
# Replace `last_modified_at` timestamp with current time
# https://mademistakes.com/notes/adding-last-modified-timestamps-with-git/
git diff --cached --name-status | grep -E -i "^(A|M).*\.(md)$" | while read a b; do
cat $b | sed "/+++.*/,/+++.*/s/^lastmod.*$/lastmod = '$(date -u "+%Y-%m-%dT%H:%M:%S%z")'/" > tmp
mv tmp $b
git add $b
done