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#!/bin/sh
# vi: ts=4 noexpandtab
#
# Author: Ben Howard <ben.howard@canonical.com>
# Author: Scott Moser <scott.moser@ubuntu.com>
# (c) 2012, Canonical Group, Ltd.
#
# Purpose: Detect invalid locale settings and inform the user
# of how to fix them.
#
locale_warn() {
local bad_names="" bad_lcs="" key="" val="" var="" vars=""
local w1 w2 w3 w4 remain
# if shell is zsh, act like sh only for this function (-L).
# The behavior change will not permenently affect user's shell.
[ "${ZSH_NAME+zsh}" = "zsh" ] && emulate -L sh
# locale is expected to output either:
# VARIABLE=
# VARIABLE="value"
# locale: Cannot set LC_SOMETHING to default locale
while read -r w1 w2 w3 w4 remain; do
case "$w1" in
locale:) bad_names="${bad_names} ${w4}";;
*)
key=${w1%%=*}
val=${w1#*=}
val=${val#\"}
val=${val%\"}
vars="${vars} $key=$val";;
esac
done
for bad in $bad_names; do
for var in ${vars}; do
[ "${bad}" = "${var%=*}" ] || continue
val=${var#*=}
[ "${bad_lcs#* ${val}}" = "${bad_lcs}" ] &&
bad_lcs="${bad_lcs} ${val}"
break
done
done
bad_lcs=${bad_lcs# }
[ -n "$bad_lcs" ] || return 0
printf "_____________________________________________________________________\n"
printf "WARNING! Your environment specifies an invalid locale.\n"
printf " This can affect your user experience significantly, including the\n"
printf " ability to manage packages. You may install the locales by running:\n\n"
local bad invalid="" to_gen="" sfile="/usr/share/i18n/SUPPORTED"
local pkgs=""
if [ -e "$sfile" ]; then
for bad in ${bad_lcs}; do
grep -q -i "${bad}" "$sfile" &&
to_gen="${to_gen} ${bad}" ||
invalid="${invalid} ${bad}"
done
else
printf " sudo apt-get install locales\n"
to_gen=$bad_lcs
fi
to_gen=${to_gen# }
local pkgs=""
for bad in ${to_gen}; do
pkgs="${pkgs} language-pack-${bad%%_*}"
done
pkgs=${pkgs# }
if [ -n "${pkgs}" ]; then
printf " sudo apt-get install ${pkgs# }\n"
printf " or\n"
printf " sudo locale-gen ${to_gen# }\n"
printf "\n"
fi
for bad in ${invalid}; do
printf "WARNING: '${bad}' is an invalid locale\n"
done
printf "To see all available language packs, run:\n"
printf " apt-cache search \"^language-pack-[a-z][a-z]$\"\n"
printf "To disable this message for all users, run:\n"
printf " sudo touch /var/lib/cloud/instance/locale-check.skip\n"
printf "_____________________________________________________________________\n\n"
# only show the message once
: > ~/.cloud-locale-test.skip 2>/dev/null || :
}
[ -f ~/.cloud-locale-test.skip -o -f /var/lib/cloud/instance/locale-check.skip ] ||
locale 2>&1 | locale_warn
unset locale_warn
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