1. Add a new option, --run-updates, to always or never run the newalises,

pwd_mkdb, etc. updates at the end of the comparison.

2. Add an update to the end to handle /etc/localtime, if it exists.
   If /var/db/zoneinfo exists, automatically update /etc/localtime,
   which should (hopefully) be safe to do. If not, prompt the user
   to run tzsetup.

3. Update run_it_now(), the function that handles input for the updates,
   to make sure that we got a valid answer, and to handle the --run-updates
   option if supplied.

usr.sbin/mergemaster/mergemaster.8

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 9, 2011
+.Dd November 1, 2011
 .Dt MERGEMASTER 8
 .Os
 .Sh NAME
@@ -34,6 +34,7 @@
 .Nm
 .Op Fl scrvhpCP
 .Op Fl a|iFU
+.Op Fl -run-updates=[always|never]
 .Op Fl m Ar /path/to/sources
 .Op Fl t Ar /path/to/temp/root
 .Op Fl d
@@ -246,6 +247,11 @@ rc file.
 Attempt to auto upgrade files that have not been user modified.
 This option can be dangerous when there are critical changes
 in the new versions that affect your running system.
+.It Fl -run-updates=[always|never]
+Specify always or never to run newaliases, pwd_mkdb, etc.
+at the end of the comparison run.
+If this option is omitted the default is to prompt the user
+for each update as necessary.
 .It Fl m Ar /path/to/sources
 Specify the path to the directory where you want to do the
 .Xr make 1 .
@@ -365,6 +371,9 @@ with all values commented out:
 # ***DANGEROUS***
 #AUTO_UPGRADE=
 #
+# Either always or never run newaliases, pwd_mkdb at the end (--run-updates)
+#RUN_UPDATES=
+#
 # Compare /etc/rc.conf[.local] to /etc/defaults/rc.conf (-C)
 #COMP_CONFS=
 #

usr.sbin/mergemaster/mergemaster.sh

@@ -15,7 +15,7 @@ PATH=/bin:/usr/bin:/usr/sbin
 display_usage () {
   VERSION_NUMBER=`grep "[$]FreeBSD:" $0 | cut -d ' ' -f 4`
   echo "mergemaster version ${VERSION_NUMBER}"
-  echo 'Usage: mergemaster [-scrvhpCP] [-a|[-iFU]]'
+  echo 'Usage: mergemaster [-scrvhpCP] [-a|[-iFU]] [--run-updates=always|never]'
   echo '    [-m /path] [-t /path] [-d] [-u N] [-w N] [-A arch] [-D /path]'
   echo "Options:"
   echo "  -s  Strict comparison (diff every pair of files)"
@@ -31,6 +31,7 @@ display_usage () {
   echo '  -P  Preserve files that are overwritten'
   echo "  -U  Attempt to auto upgrade files that have not been user modified"
   echo '      ***DANGEROUS***'
+  echo '  --run-updates=  Specify always or never to run newalises, pwd_mkdb, etc.'
   echo ''
   echo "  -m /path/directory  Specify location of source to do the make in"
   echo "  -t /path/directory  Specify temp root directory"
@@ -262,6 +263,20 @@ if [ -r "$HOME/.mergemasterrc" ]; then
   . "$HOME/.mergemasterrc"
 fi
 
+for var in "$@" ; do
+  case "$var" in
+  --run-updates*)
+    RUN_UPDATES=`echo ${var#--run-updates=} | tr [:upper:] [:lower:]`
+    ;;
+  *)
+    newopts="$newopts $var"
+    ;;
+  esac
+done
+
+set -- $newopts
+unset var newopts
+
 # Check the command line options
 #
 while getopts ":ascrvhipCPm:t:du:w:D:A:FU" COMMAND_LINE_ARGUMENT ; do
@@ -1224,34 +1239,43 @@ case "${AUTO_UPGRADED_FILES}" in
 esac
 
 run_it_now () {
-  case "${AUTO_RUN}" in
-  '')
-    unset YES_OR_NO
-    echo ''
-    echo -n '    Would you like to run it now? y or n [n] '
-    read YES_OR_NO
+  [ -n "$AUTO_RUN" ] && return
 
-    case "${YES_OR_NO}" in
+  local answer
+
+  echo ''
+  while : ; do
+    if [ "$RUN_UPDATES" = always ]; then
+      answer=y
+    elif [ "$RUN_UPDATES" = never ]; then
+      answer=n
+    else
+      echo -n '    Would you like to run it now? y or n [n] '
+      read answer
+    fi
+
+    case "$answer" in
     y)
       echo "    Running ${1}"
       echo ''
       eval "${1}"
+      return
       ;;
     ''|n)
-      echo ''
-      echo "       *** Cancelled"
-      echo ''
+      if [ ! "$RUN_UPDATES" = never ]; then
+        echo ''
+        echo "       *** Cancelled"
+        echo ''
+      fi
       echo "    Make sure to run ${1} yourself"
+      return
       ;;
     *)
       echo ''
-      echo "       *** Sorry, I do not understand your answer (${YES_OR_NO})"
+      echo "       *** Sorry, I do not understand your answer (${answer})"
       echo ''
-      echo "    Make sure to run ${1} yourself"
     esac
-    ;;
-  *) ;;
-  esac
+  done
 }
 
 case "${NEED_NEWALIASES}" in
@@ -1310,6 +1334,19 @@ case "${NEED_PWD_MKDB}" in
   ;;
 esac
 
+if [ -e "${DESTDIR}/etc/localtime" ]; then	# Ignore if TZ == UTC
+  echo ''
+  if [ -f "${DESTDIR}/var/db/zoneinfo" ]; then
+    echo "*** Reinstalling `cat ${DESTDIR}/var/db/zoneinfo` as ${DESTDIR}/etc/localtime"
+    [ -n "${DESTDIR}" ] && tzs_args="-C ${DESTDIR}"
+    tzsetup $tzs_args -r
+  else
+    echo "*** There is no ${DESTDIR}/var/db/zoneinfo file to update ${DESTDIR}/etc/localtime."
+    echo '    You should run tzsetup'
+    run_it_now tzsetup
+  fi
+fi
+
 echo ''
 
 if [ -r "${MM_EXIT_SCRIPT}" ]; then