blob: e6915641b0aed765fd6fa352cffd9d507cb0db70 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
#!/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} [-t <refname>] <chain-ish>
${NAME} [-t <refname>] -f <ref>
${NAME} -h
Move HEAD to <chain-ish>. By default, HEAD is detached at the resolved
chain
-t save HEAD to <refname> before switch
-f HEAD follows <ref> after switch
-h print this help
EOF
}
symbolic= refname=
while getopts hft: o; do
case $o in
h) usage; exit 0 ;;
f) symbolic=true ;;
t) refname="$OPTARG" ;;
*) usage; exit 1 ;;
esac
done
shift $((OPTIND - 1))
[[ $# -eq 1 ]] || { usage >&2; exit 1; }
chain="$1"
[[ -n $refname ]] && sib save "$refname"
is_ref() {
sib show-ref "$1" >/dev/null 2>&1
}
if [[ -n $symbolic ]]; then
is_ref "$chain" || die "-f set but $chain is not ref"
sib symbolic-ref -m "switch to symbolic $chain" HEAD "$chain"
echo "HEAD now followes $chain" >&2
else
res=$(sib rev-parse "$chain" 2>/dev/null) || die "$chain is invalid"
echo "switch to $chain ($(sib git rev-parse --short $res)) from $(sib git rev-parse --short HEAD)" >&2
sib update-ref -m "switch to $chain" --no-deref HEAD $res
fi
|
