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#!/usr/bin/env bash
# Copyright 2026 Hee-Suk Kim <[email protected]>
# SPDX-License-Identifier: GPL-3.0-only
set -euo pipefail
. lib.bash
usage() {
cat <<EOF
usage: ${NAME} [-h] <name> [<chain-ish>]
${NAME} -d <name>
${NAME} -l
Save <chain-ish> as <name> (default: HEAD)
-d Delete <name>
-l List saved names
-h Show this help
EOF
}
delete= list=
while getopts hdl o; do
case "$o" in
h) usage; exit 0 ;;
d) delete=1 ;;
l) list=1 ;;
*) usage >&2; exit 1 ;;
esac
done
shift $((OPTIND - 1))
[[ -z $delete || -z $list ]] || {
echo fatal: -d and -l cannot be used together >&2
usage
exit 1
}
if [[ -n $list ]]; then
# TODO: add pattern matching like git branch -l [<pattern>]
sib ls-refs refs/conv/ | awk '{ sub(/^refs\/conv\//, "", $1); print $1 }'
exit
fi
if [[ -n $delete ]]; then
[[ $# -eq 1 ]] || {
usage >&2
exit 1
}
else
[[ $# -ge 1 && $# -le 2 ]] || {
usage >&2
exit 1
}
fi
name="$1"
ref="refs/conv/$name"
sib git check-ref-format "$ref" || die "invalid name: $name"
if [[ -n $delete ]]; then
sib update-ref --no-deref -d -m "save: delete $name" "$ref"
exit
fi
#
# now save
#
target="${2:-HEAD}"
chain=$(sib rev-parse "$target" 2>/dev/null) || die "invalid chain: $target"
sib update-ref -m "save: $name" --no-deref "$ref" "$chain"
chain=$(sib git rev-parse --short $chain)
echo "Saved $chain to $name" >&2
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