finally fully use gnu license recommendations

[distro-setup] / filesystem / usr / local / bin / myupgrade

diff --git a/filesystem/usr/local/bin/myupgrade b/filesystem/usr/local/bin/myupgrade
index ee1890f4415b72a42840d85eebdd3587d0718731..664c2d2bd408e85e9952002cf1b117465650cf30 100755 (executable)
--- a/filesystem/usr/local/bin/myupgrade
+++ b/filesystem/usr/local/bin/myupgrade
@@ -1,13 +1,33 @@
 #!/bin/bash
-# Copyright (C) 2019 Ian Kelling
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# I, Ian Kelling, follow the GNU license recommendations at
+# https://www.gnu.org/licenses/license-recommendations.en.html. They
+# recommend that small programs, < 300 lines, be licensed under the
+# Apache License 2.0. This file contains or is part of one or more small
+# programs. If a small program grows beyond 300 lines, I plan to switch
+# its license to GPL.
+
+# Copyright 2024 Ian Kelling
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# usage: set DEBUG env var to anything to output to stdout
 
 # Note: running this inside a cronjob, it wont mail any output if we end
 # up rebooting from this script.
 
-if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
+set -e; . /usr/local/lib/bash-bear; set +e
 
-source /usr/local/lib/err
 pre="${0##*/}:"
 PATH="/sbin:$PATH"
 m() { printf "$pre %s\n"  "$*"; "$@"; }
@@ -19,28 +39,82 @@ err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $pre: $*" >&2; }
 hn=$(hostname -f)
 source /a/bin/bash_unpublished/source-state
 
+d() {
+  if [[ $DEBUG ]]; then
+    pee cat "wall -n"
+  else
+    # 2>/dev/null hopefully gets rid of errors like: wall: /dev/pts/0: No such file or directory
+    sed 's/^/myupgrade /' | pee logger "wall -n" 2>/dev/null
+  fi
+}
 myreboot() {
+  if [[ -e /tmp/myupgrade-noreboot ]]; then
+    e "would rebooted but /tmp/myupgrade-noreboot exists"
+    return
+  fi
+
   for x in {30..1}; do
-    echo "pid $$. unattended upgrade, rebooting in $((x*10)) seconds" | wall -n
+    echo "pid $$. unattended upgrade, rebooting in $((x*10)) seconds" | wall -n 2>/dev/null
     sleep 10
   done
   for x in {30..1}; do
     if ! fuser /var/lib/dpkg/lock &> /dev/null; then
-      echo "pid $$. unattended upgrade, rebooting now" | pee cat "wall -n"
+      echo "pid $$. unattended upgrade, rebooting now" | d
       /a/bin/ds/keyscript-on
       /sbin/reboot
       exit 0
     fi
-    echo "pid $$. unattended upgrade reboot waiting 10 seconds for dpkg lock" | wall -n
+    echo "pid $$. unattended upgrade reboot waiting 10 seconds for dpkg lock" | wall -n 2>/dev/null
     sleep 10
   done
-  echo "pid $$. dpkg locked for 5 minutes, automatic reboot failed" | pee cat "wall -n"
+  echo "pid $$. dpkg locked for 5 minutes, automatic reboot failed" | d
 }
 
 
-if ! out=$(/sbin/needrestart -p 2>&1); then
-  e "$out"
-  if [[ $HOSTNAME != "$MAIL_HOST" ]]; then
+case $hn in
+  kd)
+    /c/roles/prom/files/simple/usr/local/bin/fsf-install-prometheus
+    /c/roles/prom_export/files/simple/usr/local/bin/fsf-install-node-exporter -l 127.0.0.1
+    ;;
+  li|bk|je)
+    /c/roles/prom_export/files/simple/usr/local/bin/fsf-install-node-exporter -l 127.0.0.1
+    ;;
+  *)
+    /c/roles/prom_export/files/simple/usr/local/bin/fsf-install-node-exporter
+    ;;
+esac
+
+
+# TODO: executed from cron, this doesnt sent an email when we reboot,
+# because rebooting from the script stops the ability to send email.
+# We should figure some workaround.
+
+# I originally had the idea that for MAIL_HOST, I'd just send an email
+# if something needs restarting. But atm, I have a bad habit of ignoring
+# those emails.
+
+if ! needrestart -p -k &>/dev/null; then
+  myreboot
+fi
+
+needrestart -b -l -r a |& logger -t myupgrade
+sleep 1
+
+# Restart based on library doesnt always work. If we still
+# detect outdated libraries after trying to automatically restart,
+# then do a reboot unless we are on systems we care a bit more about
+# uptime, then send us an email.
+#
+# Note: I've noticed restart based on library has tended to screw up
+# desktop related daemons because they have bugs when restarted in
+# isolation instead of as part of bring up and down the whole desktop.
+# But, I'd rather something gets messed up than things not get
+# restarted.
+if ! /sbin/needrestart -p &>/dev/null; then
+  if [[ $hn == "$MAIL_HOST" || $hn == kd ]]; then
+    # send us an email so we can decide what to do
+    needrestart -r l
+  else
     myreboot
   fi
 fi