snapper-rollback.install


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

# See https://wiki.archlinux.org/title/PKGBUILD#install

## arg 1:  the new package version
post_install() {
    # migration from old to new config
    if [ -f /etc/rollback.conf.pacsave ]; then
        subvol_main="$(awk -F= '/^\s*subvolroot/ {print $NF}' /etc/rollback.conf.pacsave|xargs)"
        subvol_snapshots="$(awk -F= '/^\s*subvolsnap/ {print $NF}' /etc/rollback.conf.pacsave|xargs)"
        mountpoint="$(awk -F= '/^\s*subvolid5/ {print $NF}' /etc/rollback.conf.pacsave|xargs)"

        sed -i -E "s/^subvol_main = @\$/subvol_main = $subvol_main/" /etc/snapper-rollback.conf
        sed -i -E "s/^subvol_snapshots = @snapshots\$/subvol_snapshots = $subvol_snapshots/" /etc/snapper-rollback.conf
        sed -i -E "s#^mountpoint = /btrfsroot\$#mountpoint = $mountpoint#" /etc/snapper-rollback.conf

        cat >&2 << EOF

********************************************************************************
/etc/rollback.conf.pacsave has been automatically migrated to
/etc/snapper-rollback.conf. Please take a look and make sure that all values are
correct.
You may now delete /etc/rollback.conf.pacsave.
********************************************************************************

EOF
    fi
}

post_upgrade() {
    post_install
}