make assigning to TMPDIR in sbopkg.conf work

Move the assignment to SBOPKGTMP (via mktemp and its TMPDIR) to after
sourcing the config file. Thanks to Ken Roberts for reporting the issue
and providing a preliminary fix.

Also modify config_check() to check for obsolete variables as it does
for required variables. Also modify cleanup() to only try to remove
SBOPKGTMP if it exists.

src/usr/sbin/sbopkg

@@ -90,7 +90,7 @@ config_check() {
     # Check if config file is there and if so check that it has all
     # needed variables with any value, and set them.
 
-    local MISSING VAR
+    local MISSING VAR OBS OBSVAR
 
     if [[ ! -d $SBOPKG_REPOS_D ]]; then
         echo "$SCRIPT: No $SBOPKG_REPOS_D was found." 1>&2
@@ -111,6 +111,25 @@ config_check() {
     [[ -e $SBOPKG_CONF ]] && . $SBOPKG_CONF
     [[ -e $HOME/.sbopkg.conf ]] && . $HOME/.sbopkg.conf
 
+    # Some configuration options are obsolete
+    for OBSVAR in SBOPKGTMP; do
+        if [[ ${!OBSVAR} ]]; then
+            OBS+="$OBSVAR "
+        fi
+    done
+    if [[ $OBS ]]; then
+        cat << EOF
+$SCRIPT: obsolete configuration variable(s) found:
+
+$OBS
+
+Please remove or update any obsolete variables. See the sbopkg.conf(5) man
+page for more details.
+EOF
+        exit 1
+    fi
+
+
     # Some configuration options are mandatory
     for VAR in REPO_ROOT QUEUEDIR SRCDIR REPO_NAME REPO_BRANCH \
         KEEPLOG CLEANUP LOGFILE DEBUG_UPDATES TMP OUTPUT RSYNCFLAGS \
@@ -121,19 +140,15 @@ config_check() {
     done
     if [[ "$MISSING" ]]; then
         cat << EOF
+$SCRIPT: required configuration variable(s) not found:
 
-ERROR
-$SCRIPT: Can't find a value for variable(s):
 $MISSING
 
-If you have recently upgraded sbopkg there may be
+If you have recently upgraded sbopkg there may be new variables in the
-new variables in the sbopkg.conf file.  Please
+sbopkg.conf file. Please merge the sbopkg.conf.new file with your existing
-merge the sbopkg.conf.new file with your existing
+sbopkg.conf file. See the sbopkg.conf(5) man page for more details.
-sbopkg.conf file.  Please see the sbopkg.conf(5)
-man page for more details.
 
 Please correct this error and run $SCRIPT again.
-
 EOF
        exit 1
     fi
@@ -4113,7 +4128,9 @@ cleanup() {
     if [[ $HAS_NCURSES ]]; then
         tput cnorm # Restore cursor
     fi
-    rm -r $SBOPKGTMP
+    if [[ -d $SBOPKGTMP ]]; then
+        rm -r $SBOPKGTMP
+    fi
     rm -f $PIDFILE
 }
 
@@ -4396,20 +4413,6 @@ DIAG=1
 ON_ERROR=ask
 REPOS_FIELDS=7
 
-SBOPKGTMP=$(mktemp -td sbopkg.XXXXXX) ||
-    { echo "$SCRIPT: failed to create sbopkg's temporary directory"; exit 1; }
-STARTQUEUE=$SBOPKGTMP/sbopkg-start-queue
-USERQUEUE_LOCK=$SBOPKGTMP/sbopkg_user_queue.lck
-MISSING_LIST_FILE=$SBOPKGTMP/sbopkg_addall_missing
-MISSING_SINGLE_FILE=$SBOPKGTMP/sbopkg_add_item_missing
-TMPLOG=$SBOPKGTMP/sbopkg_tmplog
-TMPQUEUE=$SBOPKGTMP/sbopkg-tmp-queue
-FINALQUEUE=$SBOPKGTMP/sbopkg-final-queue
-SB_OUTPUT=$SBOPKGTMP/sbopkg-sbooutputdir
-SBOPKGOUTPUT=$SBOPKGTMP/sbopkg_output
-TMPBUILDLOG=$SBOPKGTMP/sbopkg-tmp-buildlog
-TMPSUMMARYLOG=$SBOPKGTMP/sbopkg-tmp-summarylog
-
 # Make sure we are root.
 if [[ $(id -u) != 0 ]]; then
     echo "$SCRIPT: $SCRIPT must be run by the root user.  Exiting." >&2
@@ -4587,6 +4590,20 @@ fi
 # Check for a good config file and set initial variables
 config_check
 
+SBOPKGTMP=$(mktemp -td sbopkg.XXXXXX) ||
+    { echo "$SCRIPT: failed to create sbopkg's temporary directory"; exit 1; }
+STARTQUEUE=$SBOPKGTMP/sbopkg-start-queue
+USERQUEUE_LOCK=$SBOPKGTMP/sbopkg_user_queue.lck
+MISSING_LIST_FILE=$SBOPKGTMP/sbopkg_addall_missing
+MISSING_SINGLE_FILE=$SBOPKGTMP/sbopkg_add_item_missing
+TMPLOG=$SBOPKGTMP/sbopkg_tmplog
+TMPQUEUE=$SBOPKGTMP/sbopkg-tmp-queue
+FINALQUEUE=$SBOPKGTMP/sbopkg-final-queue
+SB_OUTPUT=$SBOPKGTMP/sbopkg-sbooutputdir
+SBOPKGOUTPUT=$SBOPKGTMP/sbopkg_output
+TMPBUILDLOG=$SBOPKGTMP/sbopkg-tmp-buildlog
+TMPSUMMARYLOG=$SBOPKGTMP/sbopkg-tmp-summarylog
+
 # Change $REPO_BRANCH (and optionally REPO_NAME) if set manually using cli -v
 if [[ $VERSION ]]; then
     if [[ $CUSTOMVER == ? ]]; then