[type/__localedef] Differentiate between OSes and better handling of normalized locale names

This commit is contained in:
Dennis Camera 2020-07-23 23:20:39 +02:00
parent 54e689f7c2
commit cc29e54b85
1 changed files with 82 additions and 35 deletions

View File

@ -1,6 +1,7 @@
#!/bin/sh -e
#
# 2013-2019 Nico Schottelius (nico-cdist at schottelius.org)
# 2020 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
#
# This file is part of cdist.
#
@ -17,35 +18,16 @@
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
# Manage system locales using localedef(1).
#
# Let localedef do the magic
#
locale="$__object_id"
# Hardcoded, create a pull request with
# branching on $os in case it is at another location
alias=/usr/share/locale/locale.alias
input=$(echo "$locale" | cut -d . -f 1)
charmap=$(echo "$locale" | cut -d . -f 2)
# Adding locale? The name is de_CH.UTF-8
# Removing locale? The name is de_CH.utf8.
# W-T-F!
locale_remove=$(echo "$locale" | sed 's/UTF-8/utf8/')
state_is=$(cat "${__object:?}/explorer/state")
state_should=$(cat "${__object:?}/parameter/state")
os=$(cat "$__global/explorer/os")
# Nothing to be done on alpine
case "$os" in
alpine)
exit 0
;;
esac
test "${state_should}" = 'present' -o "${state_should}" = 'absent' || {
printf 'Invalid state: %s\n' "${state_should}" >&2
exit 1
}
# NOTE: If state explorer fails (e.g. locale(1) missing), the following check
# will always fail and let definition/removal run.
@ -54,16 +36,81 @@ then
exit 0
fi
case ${state_should}
locale=${__object_id:?}
os=$(cat "${__global:?}/explorer/os")
if expr "${locale}" : '.*/' >/dev/null
then
printf 'Paths as locales are not supported.\n' >&2
printf '__object_id is: %s\n' "${locale}" >&2
exit 1
fi
parse_locale() {
# This function will split locales into their parts. Locale strings are
# usually of the form: [language[_territory][.codeset][@modifier]]
# For simplicity, language and territory are not separated by this function.
# Old Linux systems were also using "english" or "german" as locale strings.
# Usage: parse_locale locale_str lang_var codeset_var modifier_var
eval "${2:?}"="$(expr "$1" : '\([^.@]*\)')"
eval "${3:?}"="$(expr "$1" : '[^.]*\.\([^@]*\)')"
eval "${4:?}"="$(expr "$1" : '.*@\(.*\)$')"
}
format_locale() {
# Usage: format_locale language codeset modifier
printf '%s' "$1"
test -z "$2" || printf '.%s' "$2"
test -z "$3" || printf '@%s' "$3"
printf '\n'
}
gnu_normalize_codeset() {
echo "$*" | tr -cd '[:alnum:]' | tr '[:upper:]' '[:lower:]'
}
: "${lang=}" "${codeset=}" "${modifier=}" # declare variables for shellcheck
parse_locale "${locale}" lang codeset modifier
case ${os}
in
present)
echo localedef -A "$alias" -f "$charmap" -i "$input" "$locale"
;;
absent)
echo localedef --delete-from-archive "$locale_remove"
;;
*)
echo "Unsupported state: $state" >&2
exit 1
;;
(alpine|openwrt)
printf '%s does not support locales.\n' "${os}" >&2
exit 1
;;
(archlinux|debian|devuan|ubuntu|suse|centos|fedora|redhat|scientific)
# FIXME: The code below only works for glibc-based installations.
# NOTE: Hardcoded, create a pull request in case it is at another
# location for some opther distro.
# NOTE: locale.alias can be symlinked (e.g. Debian)
aliasfile='/usr/share/locale/locale.alias'
case ${state_should}
in
(present)
input=$(format_locale "${lang}" '' "${modifier}")
cat <<-EOF
set --
if test -e '${aliasfile}'
then
set -- -A '${aliasfile}'
fi
localedef -i '${input}' -f '${codeset}' "\$@" '${locale}'
EOF
;;
(absent)
localename=$(format_locale "${lang}" "$(gnu_normalize_codeset "${codeset}")" "${modifier}")
printf "localedef --delete-from-archive '%s'\n" "${localename}"
;;
esac
;;
(*)
echo "Your operating system (${os}) is currently not supported by this type (${__type##*/})." >&2
echo "Please contribute an implementation for it if you can." >&2
exit 1
;;
esac