X-Git-Url: https://iankelling.org/git/?p=distro-setup;a=blobdiff_plain;f=switch-mail-host;h=9ebd2a73cd1e41731e2318eea8cc9369bb9a7375;hp=40cb8172ffd873deda5097e966903243e6b636c2;hb=e2fb88c7f8c32cf6442a399844bd2fbd1c912027;hpb=e7708e1261357b00d17f4baffb7051e97f7e8623 diff --git a/switch-mail-host b/switch-mail-host index 40cb817..9ebd2a7 100755 --- a/switch-mail-host +++ b/switch-mail-host @@ -11,7 +11,7 @@ Adjust home network dns so NEW_HOST resolves locally if it is on the local network. Turn off mail receiving on OLD_HOST, run btrbk to move mail to NEW_HOST, turn on mail receiving on NEW_HOST. - +-w Don't try to ssh to wrt. Should only be used in unusual network situation. -h|--help Print help and exit. Note: Uses GNU getopt options parsing style @@ -21,12 +21,24 @@ EOF ##### begin command line parsing ######## -if (( $# != 2 )) || [[ $1 == -* || $2 == -* ]]; then - usage 1 -fi +update_wrt=true # default +temp=$(getopt -l help wh "$@") || usage 1 +eval set -- "$temp" +while true; do + case $1 in + -w) update_wrt=false; shift ;; + -h|--help) usage ;; + --) shift; break ;; + *) echo "$0: Internal error! unexpected args: $*" ; exit 1 ;; + esac +done + + +(( $# == 2 )) || usage 1 old_host=$1 new_host=$2 +source /a/bin/bash_unpublished/source-semi-priv if [[ $old_host != $MAIL_HOST ]]; then read -p "warning: \$old_host != \$MAIL_HOST: $old_host != $MAIL_HOST, proceed? y/N " @@ -37,15 +49,15 @@ fi if [[ $new_host == "$HOSTNAME" ]]; then localhost_new=true - new_shell="ssh $new_host" + new_shell= else localhost_new=false - new_shell= + new_shell="ssh $new_host" fi -old_shell= +old_shell="ssh $old_host" if [[ $old_host == "$HOSTNAME" ]]; then - old_shell="ssh $old_host" + old_shell= fi if [[ ! $new_host || ! $old_host ]]; then @@ -54,41 +66,49 @@ if [[ ! $new_host || ! $old_host ]]; then fi at_home=false -if [[ $HOSTNAME == treetowl ]] || [[ $HOSTNAME == frodo ]] || timeout -s 9 5 ssh wrt.lan :; then +if [[ $HOSTNAME == tp ]] || [[ $HOSTNAME == frodo ]] || timeout -s 9 5 ssh wrt.b8.nz :; then at_home=true fi echo "$0: at_home = $at_home" source /a/bin/bash_unpublished/source-semi-priv #### begin convert private hostnames to public hostnames #### -if ! $at_home; then - for var in old_host new_host; do - case ${!var} in - treetowl) - eval $var=$HOME_DOMAIN - ;; - esac - done -fi +#if ! $at_home; then +# for var in old_host new_host; do +# case ${!var} in +# tp) +# eval $var=$HOME_DOMAIN +# ;; +# esac +# done +#fi #### end convert private hostnames to public hostnames #### # because our port forward is not robust enough, we can't use proxy command, -# todo: just open an ssh port to the world on wrt.lan -if ! $at_home; then - wrt_shell="ssh $HOME_DOMAIN ssh wrt.lan" +# todo: setup vpn so this is all taken care of. +if ! $update_wrt; then + wrt_shell=: +elif $at_home; then + wrt_shell="ssh wrt.b8.nz" else - wrt_shell="ssh wrt.lan" + if [[ $old_host == iank.vpn.office.fsf.org || $new_host == iank.vpn.office.fsf.org ]]; then + wrt_shell="ssh iank.vpn.office.fsf.org ssh wrt.b8.nz" + else + wrt_shell="ssh $HOME_DOMAIN ssh wrt.b8.nz" + fi fi btrbk_test="systemctl is-active btrbk.service" -while ! $new_shell $btrbk_test || $old_shell $btrbk_test; do +while $new_shell $btrbk_test || $old_shell $btrbk_test; do echo "$0: btrbk is running on new or old host. sleeping for 8 seconds" sleep 6 echo "$0: testing for btrbk activity in 2 seconds" sleep 2 done +new_hostname=$($new_shell hostname) + ########### end initial processing, begin actually modifying things ########## restore_new_btrbk=false @@ -102,10 +122,11 @@ if $old_shell systemctl is-active btrbk.timer; then restore_old_btrbk=true fi -$new_shell bash -s <<'EOF' + +$new_shell bash -xs <<'EOF' set -eE -if mountpoint /m; then sudo umount /m; fi -if mountpoint /o; then sudo umount /o; fi +if mountpoint -q /m; then sudo umount /m; fi +if mountpoint -q /o; then sudo umount /o; fi EOF # if new_host is not on home network, make mail.iankelling.org not resolve @@ -113,23 +134,19 @@ EOF if [[ $new_host == $HOSTNAME ]] && ! $at_home; then echo | $wrt_shell cedit mail_host /etc/hosts || [[ $? == 1 ]] # 1 means file changed. else - $wrt_shell bash -s <