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jos/.hooks/commit-msg

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#!/usr/bin/env bash
# This hook checks if the commit message ends with an issue number, and if not,
# tries to derive that number from the branch name
branch=`git rev-parse --abbrev-ref HEAD`
# This check doesn't need to run when commiting to develop/master
[[ "$branch" =~ ^master|develop$ ]] && exit 0
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issue_num=`echo "$branch" | grep -Po '^[0-9]+(?=-)'`
# Check if issue number is already present
if ! grep -q '([0-9]\+)$' "$1"; then
# Error out if we can't derive issue number
[[ -z "$issue_num" ]] && {
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>&2 echo "Couldn't derive issue number from branch. Please add one manually.";
exit 1;
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}
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# Append issue number, and remove all comments
echo "[#$issue_num]" "$(cat "$1")" > "$1"
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fi