Performance and debugging enhancements:

+ Remove UNAME_P=$(...) from startup/misc -- already supplied by common.subr
+ Use f_getvar instead of $(eval echo \$$var) -- f_getvar is sub-shell free
+ Add `-e' and `-k var' options to f_eval_catch -- increasing use-cases
+ Use f_eval_catch to display errors on failure -- reducing duplicated code
+ Use f_eval_catch when we need output from a command -- improving debugging
+ Optimize f_isinter of strings.subr for performance -- now sub-shell free
+ Improve error checking on pidfiles -- using f_eval_catch and f_isinteger
+ Use $var_to_set arg of f_ifconfig_{inet,netmask} -- eliminate sub-shells
+ Use f_sprintf instead of $(printf ...) -- consolidate sub-shells
+ Use $var_to_set arg of f_route_get_default -- eliminate sub-shells
+ Add f_count to replace $(set -- ...;echo $#) -- eliminate sub-shells
+ Add f_count_ifs to replace $(IFS=x;set -- ...;echo $#) -- no sub-shells
+ Replace var="$var${var:+ }..." in loops with var="$var ..." with a follow-
  up var="${var# }" to trim leading whitespace -- optimize loops
+ Use $var_to_set arg of f_resolv_conf_nameservers -- eliminate sub-shells
+ Comments for the f_eval_catch function
+ Remove a duplicate `local ... desc ...' in f_device_get_all of device.subr
+ Use $var_to_set arg of f_device_capacity -- eliminate sub-shells
+ Whitespace fixes in f_dialog_init of dialog.subr
+ Optimize f_inet_atoi of media/tcpip.subr for performance -- sub-shell free
+ In several cases, send stderr to /dev/null -- clean up runtime execution
+ Change f_err of common.subr to go to program stderr not terminal stderr,
  allowing redirection of output from functions that use f_err
+ Disable debugging when using f_getvar to get variable argument to
  f_startup_rcconf_map_expand of startup/rcconf.subr
+ Use f_replace_all instead of $(echo ... | tr | sed) -- performance
+ Add a $var_to_set option to f_index_{file,menusel_{command,keyword}} of
  common.subr -- centralize sub-shells

1 files changed, 9 insertions, 7 deletions

diff --git a/usr.sbin/bsdconfig/console/font b/usr.sbin/bsdconfig/console/font
index 1ffa696..ce16730 100755
--- a/usr.sbin/bsdconfig/console/font
+++ b/usr.sbin/bsdconfig/console/font
@@ -38,8 +38,8 @@ f_include $BSDCFG_SHARE/sysrc.subr
 BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="080.console"
 f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
 
-ipgm=$( f_index_menusel_keyword $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" )
-[ $? -eq $SUCCESS -a "$ipgm" ] && pgm="$ipgm"
+f_index_menusel_keyword $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" ipgm &&
+	pgm="${ipgm:-$pgm}"
 
 ############################################################ FUNCTIONS
 
@@ -174,14 +174,16 @@ esac
 
 [ "$f8" -a "$f14" -a "$f16" ] || f_die 1 "$msg_unknown_font_selection"
 
-f_sysrc_set font8x8 "$f8" || f_die
-f_sysrc_set font8x14 "$f14" || f_die
-f_sysrc_set font8x16 "$f16" || f_die
+f_eval_catch "$0" f_sysrc_set 'f_sysrc_set font8x8 "%s"' "$f8" || f_die
+f_eval_catch "$0" f_sysrc_set 'f_sysrc_set font8x14 "%s"' "$f14" || f_die
+f_eval_catch "$0" f_sysrc_set 'f_sysrc_set font8x16 "%s"' "$f16" || f_die
 
 if [ "$mc_start" ]; then
-	f_sysrc_set mousechar_start "$mc_start" || f_die
+	f_eval_catch "$0" f_sysrc_set \
+		'f_sysrc_set mousechar_start "%s"' "$mc_start" || f_die
 else
-	f_sysrc_delete mousechar_start || f_die
+	f_eval_catch "$0" f_sysrc_delete \
+		'f_sysrc_delete mousechar_start' || f_die
 fi
 
 exit $SUCCESS