Release new version 2.13.0

[grml-scripts.git] / usr_sbin / grml-setlang

diff --git a/usr_sbin/grml-setlang b/usr_sbin/grml-setlang
index 3efda81..4a15d5c 100755 (executable)
--- a/usr_sbin/grml-setlang
+++ b/usr_sbin/grml-setlang
@@ -4,12 +4,10 @@
 # Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
 # Bug-Reports:   see http://grml.org/bugs/
 # License:       This file is licensed under the GPL v2.
-# Latest change: Sam Dez 16 18:20:42 CET 2006 [mika]
 ################################################################################
 
-PN="$(basename $0)"
+PN="$(basename "$0")"
 DIALOG=dialog
-CMDLINE=/proc/cmdline
 LANGFUNC=/etc/grml/language-functions
 
 # notice: Debian's locales.postinst has been modified to write
@@ -18,8 +16,11 @@ LANGFUNC=/etc/grml/language-functions
 # so modifying it was a policy violation.
 CONFFILE=/etc/default/locale
 
+# shellcheck disable=SC1091
+{
 . /etc/grml/script-functions
 . /etc/grml/lsb-functions
+}
 
 check4root || exit 100
 
@@ -40,8 +41,12 @@ fi
 setvalue(){
   [ -n "$2" ] || return 1
   # already present in conffile?
-  if grep -q ${1} $CONFFILE ; then
-     sed -i "s#^${1}.*#${1}${2}#"   $CONFFILE
+  if grep -q "^${1}" "$CONFFILE" ; then
+     sed -i "s#^${1}.*#${1}${2}#"  $CONFFILE
+  # is the new Debian style /etc/default/locale present?
+  elif grep -q "^# ${1}$" "$CONFFILE" ; then
+     # shellcheck disable=SC1117
+     sed -i "s#^\# ${1}#${1}${2}#" $CONFFILE
   else
      echo "$1${2}" >> $CONFFILE
   fi
@@ -50,7 +55,7 @@ setvalue(){
 # grml-small does not provide any further locales
 if grep -q small /etc/grml_version 2>/dev/null ; then
    if [ -z "$NONINTERACTIVE" ] ; then
-      $DIALOG --stdout --msgbox "Notice: grml-small does not provide a full language setup.
+      LANG=C $DIALOG --stdout --msgbox "Notice: grml-small does not provide a full language setup.
 
 You have to make sure the appropriate packages are installed." 0 0
       exit 1
@@ -59,8 +64,11 @@ You have to make sure the appropriate packages are installed." 0 0
    fi
 fi
 
+# shellcheck disable=SC1091
+{
 [ -r /etc/environment ]    && . /etc/environment
 [ -r /etc/default/locale ] && . /etc/default/locale
+}
 [ -n "$LANGUAGE" ] && DEFAULT_LANGUAGE="$LANGUAGE"
 
 if [ -z "$DEFAULT_LANGUAGE" ] ; then
@@ -68,14 +76,16 @@ if [ -z "$DEFAULT_LANGUAGE" ] ; then
 fi
 
 if [ -z "$NONINTERACTIVE" ] ; then
-   LANGUAGE=$($DIALOG --stdout --title "$PN" --default-item $DEFAULT_LANGUAGE --radiolist \
+# shellcheck disable=SC1010
+{
+   LANGUAGE=$(LANG=C $DIALOG --stdout --title "$PN" --default-item $DEFAULT_LANGUAGE --radiolist \
 "Which language do you want to use?
 
-This will affect \$LANG, \$LANGUAGE, \$LC_MESSAGES and \$TZ.
+This will affect \$LANG, \$LANGUAGE and \$LC_MESSAGES.
 
 Notice: if you want to adjust /etc/locale.gen (defines
 which locales should be generated by locale-gen)
-please run 'dpkg-reconfigure locale' manually.
+please run 'dpkg-reconfigure locales' manually.
 
 Configuration will be written to $CONFFILE" 0 0 0 \
  at 'austria (unicode version)' off \
@@ -146,6 +156,7 @@ Configuration will be written to $CONFFILE" 0 0 0 \
  us 'american (unicode version)' off \
  us-iso 'american (iso version)' off \
 )
+}
 
   retval=$?
   case $retval in
@@ -159,39 +170,47 @@ else # non-interactive
   LANGUAGE="$1"
 fi
 
-if ! grep -q "${LANGUAGE})" $LANGFUNC ; then
+if ! grep -qe "${LANGUAGE})" -qe "${LANGUAGE}|" $LANGFUNC ; then
    ewarn "Language ${LANGUAGE} not supported, using default." ; eend 0
 fi
 
+# fallback to C if using an ISO system (which is latin1 for LC_CTYPE);
+# this should prevent users from broken ctype settings if the set
+# locale isn't available on a remote system
+if echo "$LANGUAGE" | grep -q -- '-iso' ; then
+   LC_CTYPE=C
+fi
+
 # read in the file where all the $LANGUAGE stuff is defined
-  source $LANGFUNC
+# shellcheck disable=SC1090
+. $LANGFUNC
 
 # make sure the file exists
 if ! [ -r $CONFFILE ] ; then
 cat > $CONFFILE <<EOF
 # File generated by $PN on $(date)
-LANGUAGE=$LANGUAGE
 LANG=$LANG
-LC_MESSAGES=$LANG
-TZ=$TZ
+# LC_CTYPE=$LC_CTYPE
+# LANGUAGE=$LANGUAGE
+# TZ=$TZ
 # other environment variables you might want to set:
-# LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY
-# LC_MESSAGES LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE
-# LC_MEASUREMENT LC_IDENTIFICATION
-# Notice: set LC_ALL to overwrite all LC_* variables
+# LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY
+# LC_MESSAGES LC_PAPER LC_NAME LC_ADDRESS
+# LC_TELEPHONE LC_MEASUREMENT LC_IDENTIFICATION
+#
+# Note: set LC_ALL to overwrite all LC_* variables
+#       LC_ALL > LC_* > LANG
+#       LANGUAGE is glibc only and binds stronger than LC_ALL
 EOF
 fi
 
-setvalue 'LANGUAGE='    $LANGUAGE
-setvalue 'LANG='        $LANG
-setvalue 'LC_MESSAGES=' $LANG
-setvalue 'TZ='          $TZ
+setvalue 'LANG='     "$LANG"
 
 retval=$?
 case $retval in
     (0)
           if [ -z "$NONINTERACTIVE" ] ; then
-             $DIALOG --stdout --msgbox "Writing language settings ($LANGUAGE) to $CONFFILE was successful." 0 0
+             LANG=C $DIALOG --stdout --msgbox "Writing language settings ($LANGUAGE) to $CONFFILE was successful." 0 0
           else
              einfo "Writing language settings ($LANGUAGE) to $CONFFILE was successful."
              esyslog user.notice "$PN" "Writing language settings ($LANGUAGE) to $CONFFILE was successful." ; eend 0
@@ -199,7 +218,7 @@ case $retval in
           ;;
     *)
           if [ -z "$NONINTERACTIVE" ] ; then
-             $DIALOG --stdout --msgbox "Error writing settings for $LANGUAGE to $CONFFILE." 0 0
+             LANG=C $DIALOG --stdout --msgbox "Error writing settings for $LANGUAGE to $CONFFILE." 0 0
           else
              eerror "Error writing settings for $LANGUAGE to $CONFFILE." ; eend 1
              esyslog user.notice "$PN" "Error writing settings for $LANGUAGE to $CONFFILE."