#!/usr/bin/env bash
# Transform revision description through a command
# Usage: jj-desc-transform <REV> <COMMAND...>
# Example: jj-desc-transform @ sed 's/foo/bar/'
# Example: jj-desc-transform mxyz awk '/^##/{print; next} {print "  "$0}'

set -euo pipefail

if [[ $# -lt 2 ]]; then
  echo "Usage: jj-desc-transform <REV> <COMMAND...>" >&2
  exit 1
fi

rev="$1"
shift

jj log -r "$rev" -n1 --no-graph -T description | "$@" | jj desc -r "$rev" --stdin