Created
June 6, 2023 07:22
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Script to search git diffs, returning only lines that have changed, and the corresponding files
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#!/usr/bin/env bash | |
# Adapted from https://stackoverflow.com/a/50569950/1836776 | |
if [[ $1 == '--help' ]]; then | |
script=`basename "$0"` | |
echo "USAGE" | |
echo " $script term [git diff parameters]" | |
echo | |
echo "DESCRIPTION" | |
echo " Searches git diff results for <term>, returning only lines that have changed" | |
echo | |
echo "EXAMPLES" | |
echo " - Search all changes from master in current branch for 'TODO':" | |
echo " $script TODO master..." | |
echo | |
echo " - As above, with pagination (color support):" | |
echo " $script TODO master... | less -r" | |
exit 1 | |
fi | |
colored=$'(\e\[[0-9;]*[a-zA-Z])' | |
marker="^$colored+diff" | |
pattern="^$colored+.*(\+|\-).*$1" | |
shift | |
# Yeah, okay, both sed and awk for maximum dork here, feel free to combine! | |
git diff --color $* | sed -rn -e "/$marker/! H; /$marker/ ba; $ ba; b; :a; x; /$pattern/ p" | awk "/\+\+\+/{f = \$2 \":\\n\"}; /$pattern/ {print f \$0; f = \"\"}" |
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