git-which-tag.sh


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#!/bin/sh
set -eu

[ "$#" -lt 1 ] && exit 1

git log --color=never --all --pretty='%h' --grep="${1}" | while read -r ID ; do
    tags="$(git tag --no-column -l 'v*' --sort='version:refname' --contains "$ID" \
        | head -n 5 | tr '\n' ' ')"
    subject="$(git  rev-list --max-count=1 --no-commit-header --format=%s "$ID")"
    if [ -n "$tags" ] ; then
        printf "%s: %s %s\n" "$ID" "$tags" "$subject"
    fi
done