Eliminate sub-shells where possible for performance.
MFC after: 7 days
This commit is contained in:
Devin Teske
parent
ad8d629a0c
commit
fb1f1bee0d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=278489
@ -1,6 +1,6 @@
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if [ ! "$_TIMEZONE_CONTINENTS_SUBR" ]; then _TIMEZONE_CONTINENTS_SUBR=1
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#
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# Copyright (c) 2011-2012 Devin Teske
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# Copyright (c) 2011-2015 Devin Teske
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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@ -87,7 +87,7 @@ export continent_utc_title
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############################################################ FUNCTIONS
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# f_continent $cont $property
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# f_continent $cont $property [$var_to_set]
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#
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# Returns a single property of a given continent. Available properties are:
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#
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@ -102,37 +102,60 @@ export continent_utc_title
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# (which appears after continent selection).
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# menu_list Menu-list of regions for this continent.
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#
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# If $var_to_set is missing or NULL, the value of $var_to_get is printed to
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# standard output for capturing in a sub-shell (which is less-recommended
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# because of performance degredation; for example, when called in a loop).
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#
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f_continent()
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{
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local cont="$1" property="$2"
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eval echo \"\${continent_${cont}_$property}\"
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f_getvar "continent_${1}_$2" $3
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}
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# f_find_continent $title
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# f_find_continent $title [$var_to_set]
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#
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# Returns continent identifier given continent title.
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#
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# If $var_to_set is missing or NULL, the value of $var_to_get is printed to
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# standard output for capturing in a sub-shell (which is less-recommended
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# because of performance degredation; for example, when called in a loop).
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#
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f_find_continent()
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{
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local cont
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for cont in $CONTINENTS; do
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if [ "$1" = "$( f_continent $cont title )" ]; then
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echo "$cont"
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local __cont __title
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for __cont in $CONTINENTS; do
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f_continent $__cont title __title
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if [ "$1" = "$__title" ]; then
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if [ "$2" ]; then
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setvar "$2" $__cont
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else
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echo "$__cont"
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fi
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return $SUCCESS
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fi
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done
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return $FAILURE
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}
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# f_OCEANP $cont
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# f_OCEANP $cont [$var_to_set]
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#
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# Returns "1" if the first argument is an ocean, otherwise NULL.
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#
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# If $var_to_set is missing or NULL, the value of $var_to_get is printed to
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# standard output for capturing in a sub-shell (which is less-recommended
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# because of performance degredation; for example, when called in a loop).
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#
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f_OCEANP()
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{
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case "$1" in
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arctic|atlantic|indian|pacific)
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echo 1
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if [ "$2" ]; then
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setvar "$2" 1
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else
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echo 1
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fi
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;;
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*)
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[ "$2" ] && setvar "$2" ""
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esac
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}
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@ -1,6 +1,6 @@
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if [ ! "$_TIMEZONE_COUNTRIES_SUBR" ]; then _TIMEZONE_COUNTRIES_SUBR=1
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#
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# Copyright (c) 2011-2012 Devin Teske
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# Copyright (c) 2011-2015 Devin Teske
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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@ -25,8 +25,10 @@ if [ ! "$_TIMEZONE_COUNTRIES_SUBR" ]; then _TIMEZONE_COUNTRIES_SUBR=1
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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############################################################ FUNCTIONS
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# f_country $code $property
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# f_country $code $property [$var_to_set]
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#
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# Returns a single property of a given country. Available properties are:
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#
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@ -44,10 +46,13 @@ if [ ! "$_TIMEZONE_COUNTRIES_SUBR" ]; then _TIMEZONE_COUNTRIES_SUBR=1
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# descr_N Like name, but for the Nth zone when the country has
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# multiple zones (nzones > 0)
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#
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# If $var_to_set is missing or NULL, the value of $var_to_get is printed to
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# standard output for capturing in a sub-shell (which is less-recommended
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# because of performance degredation; for example, when called in a loop).
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#
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f_country()
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{
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local code="$1" property="$2"
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eval echo \"\${country_${code}_$property}\"
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f_getvar "country_${1}_$2" $3
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}
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# f_sort_countries
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@ -59,22 +64,42 @@ f_country()
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# afterward is the sh(1) function which utilizes the below awk script.
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#
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f_sort_countries_awk='
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function _asorti(src, dest)
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{
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split($0, array, /[[:space:]]+/)
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k = nitems = 0
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for (i in src) dest[++nitems] = i
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for (i = 1; i <= nitems; k = i++) {
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idx = dest[i]
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while ((k > 0) && (dest[k] > idx)) {
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dest[k+1] = dest[k]; k--
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}
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dest[k+1] = idx
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}
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return nitems
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}
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BEGIN {
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split(ENVIRON["COUNTRIES"], array, /[[:space:]]+/)
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for (item in array)
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{
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tlc = array[item]
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print ENVIRON["country_" tlc "_name"] " " tlc
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name = ENVIRON["country_" tlc "_name"]
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countries[name] = tlc
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}
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n = _asorti(countries, sorted_countries)
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for (i = 1; i <= n; i++)
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print countries[sorted_countries[i]]
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exit
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}
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'
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f_sort_countries()
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{
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COUNTRIES=$( echo "$COUNTRIES" | awk "$f_sort_countries_awk" |
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sort | awk '{print $NF}' )
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export COUNTRIES
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export COUNTRIES # for awk(1) ENVIRON[] visibility
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COUNTRIES=$( awk "$f_sort_countries_awk" )
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export COUNTRIES # Pedantic
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}
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############################################################ MAIN
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f_dprintf "%s: Successfully loaded." timezone/countries.subr
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fi # ! $_TIMEZONE_COUNTRIES_SUBR
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@ -1,6 +1,6 @@
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#!/bin/sh
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#-
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# Copyright (c) 2011-2013 Devin Teske
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# Copyright (c) 2011-2015 Devin Teske
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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@ -280,8 +280,8 @@ f_make_menus # creates $continent_menu_list and $continent_*_menu_list
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#
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# Launch application main menu
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#
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defaultctry=""
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defaultzone=""
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defaultctry=
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defaultzone=
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NEED_CONTINENT=1
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NEED_COUNTRY=1
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while :; do
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@ -299,10 +299,10 @@ while :; do
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continent=$( eval f_dialog_menutag2item \"\$mtag\" \
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$continent_menu_list )
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cont=$( f_find_continent "$continent" )
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cont_title=$( f_continent $cont title )
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nitems=$( f_continent $cont nitems )
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isocean=$( f_OCEANP $cont )
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f_find_continent "$continent" cont
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f_continent $cont title cont_title
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f_continent $cont nitems nitems
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f_OCEANP $cont isocean
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fi
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if [ "$NEED_COUNTRY" ]; then
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@ -345,7 +345,7 @@ while :; do
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#
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# Calculate size of menu
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#
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menu_list=$( f_continent $cont menu_list )
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f_continent $cont menu_list menu_list
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eval f_dialog_menu_size height width rows \
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\"\$title\" \
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\"\$btitle\" \
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@ -378,7 +378,7 @@ while :; do
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fi
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# Get the country code from the user's selection
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tlc=$( f_continent $cont tlc_$tag )
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f_continent $cont tlc_$tag tlc
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NEED_COUNTRY=
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fi
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@ -387,12 +387,12 @@ while :; do
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# If the selection has only one zone (nzones == -1),
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# just set it.
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#
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nzones=$( f_country $tlc nzones )
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f_country $tlc nzones nzones
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if [ $nzones -lt 0 ]; then
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real_cont=$( f_country $tlc cont )
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real_continent=$( f_continent $real_cont name )
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name=$( f_country $tlc name )
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filename=$( f_country $tlc filename )
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f_country $tlc cont real_cont
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f_continent $real_cont name real_continent
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f_country $tlc name name
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f_country $tlc filename filename
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if ! f_confirm_zone "$real_continent/$filename"; then
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[ $nitems -eq 1 ] && NEED_CONTINENT=1
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@ -400,13 +400,13 @@ while :; do
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continue
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fi
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else
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f_sprintf title "$msg_country_time_zones" \
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"$( f_country $tlc name )"
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f_country $tlc name name
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f_sprintf title "$msg_country_time_zones" "$name"
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f_dialog_title "$title"
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title="$DIALOG_TITLE" btitle="$DIALOG_BACKTITLE"
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f_dialog_title_restore
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prompt="$msg_select_zone"
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menu_list=$( f_country $tlc menu_list )
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f_country $tlc menu_list menu_list
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eval f_dialog_menu_size height width rows \
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\"\$title\" \"\$btitle\" \"\$prompt\" \"\" $menu_list
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@ -435,10 +435,10 @@ while :; do
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continue
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fi
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real_cont=$( f_country $tlc cont_$n )
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real_continent=$( f_continent $real_cont name )
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name=$( f_country $tlc name )
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filename=$( f_country $tlc filename_$n )
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f_country $tlc cont_$n real_cont
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f_continent $real_cont name real_continent
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f_country $tlc name name
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f_country $tlc filename_$n filename
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f_confirm_zone "$real_continent/$filename" || continue
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fi
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