[recipes] Add locale support to the OS X launcher

[Matthias Clasen <matthiasc src gnome org>]

commit 71e06087322261351bbaf1a29a2fc7d32a5bc178
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Mar 1 23:55:35 2017 -0500

    Add locale support to the OS X launcher

 osx/gnome-recipes.sh |   92 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 92 insertions(+), 0 deletions(-)
---
diff --git a/osx/gnome-recipes.sh b/osx/gnome-recipes.sh
old mode 100755
new mode 100644
index e254e86..8e8ad8e
--- a/osx/gnome-recipes.sh
+++ b/osx/gnome-recipes.sh
@@ -29,5 +29,97 @@ if [ `uname -r | cut -d . -f 1` -ge 10 ]; then
     export GTK_IM_MODULE_FILE="$bundle_etc/gtk-3.0/gtk.immodules"
 fi
 
+APP=$name
+I18NDIR="$bundle_data/locale"
+# Set the locale-related variables appropriately:
+unset LANG LC_MESSAGES LC_MONETARY LC_COLLATE
+
+# Has a language ordering been set?
+# If so, set LC_MESSAGES and LANG accordingly; otherwise skip it.
+# First step uses sed to clean off the quotes and commas, to change - to _, and change the names for the 
chinese scripts from "Hans" to CN and "Hant" to TW.
+APPLELANGUAGES=`defaults read .GlobalPreferences AppleLanguages | sed -En   -e 's/\-/_/' -e 's/Hant/TW/' -e 
's/Hans/CN/' -e 's/[[:space:]]*\"?([[:alnum:]_]+)\"?,?/\1/p' `
+if test "$APPLELANGUAGES"; then
+    # A language ordering exists.
+    # Test, item per item, to see whether there is an corresponding locale.
+    for L in $APPLELANGUAGES; do
+       #test for exact matches:
+       if test -f "$I18NDIR/${L}/LC_MESSAGES/$APP.mo"; then
+           export LANG=$L
+            break
+        fi
+       #This is a special case, because often the original strings are in US
+       #English and there is no translation file.
+       if test "x$L" == "xen_US"; then
+           export LANG=$L
+           break
+       fi
+       #OK, now test for just the first two letters:
+        if test -f "$I18NDIR/${L:0:2}/LC_MESSAGES/$APP.mo"; then
+           export LANG=${L:0:2}
+           break
+       fi
+       #Same thing, but checking for any english variant.
+       if test "x${L:0:2}" == "xen"; then
+           export LANG=$L
+           break
+       fi;
+    done  
+fi
+unset APPLELANGUAGES L
+
+# If we didn't get a language from the language list, try the Collation preference, in case it's the only 
setting that exists.
+APPLECOLLATION=`defaults read .GlobalPreferences AppleCollationOrder`
+if test -z ${LANG} -a -n $APPLECOLLATION; then
+    if test -f "$I18NDIR/${APPLECOLLATION:0:2}/LC_MESSAGES/$APP.mo"; then
+       export LANG=${APPLECOLLATION:0:2}
+    fi
+fi
+if test ! -z $APPLECOLLATION; then
+    export LC_COLLATE=$APPLECOLLATION
+fi
+unset APPLECOLLATION
+
+# Continue by attempting to find the Locale preference.
+APPLELOCALE=`defaults read .GlobalPreferences AppleLocale`
+
+if test -f "$I18NDIR/${APPLELOCALE:0:5}/LC_MESSAGES/$APP.mo"; then
+    if test -z $LANG; then 
+        export LANG="${APPLELOCALE:0:5}"
+    fi
+
+elif test -z $LANG -a -f "$I18NDIR/${APPLELOCALE:0:2}/LC_MESSAGES/$APP.mo"; then
+    export LANG="${APPLELOCALE:0:2}"
+fi
+
+#Next we need to set LC_MESSAGES. If at all possilbe, we want a full
+#5-character locale to avoid the "Locale not supported by C library"
+#warning from Gtk -- even though Gtk will translate with a
+#two-character code.
+if test -n $LANG; then 
+#If the language code matches the applelocale, then that's the message
+#locale; otherwise, if it's longer than two characters, then it's
+#probably a good message locale and we'll go with it.
+    if test $LANG == ${APPLELOCALE:0:5} -o $LANG != ${LANG:0:2}; then
+       export LC_MESSAGES=$LANG
+#Next try if the Applelocale is longer than 2 chars and the language
+#bit matches $LANG
+    elif test $LANG == ${APPLELOCALE:0:2} -a $APPLELOCALE > ${APPLELOCALE:0:2}; then
+       export LC_MESSAGES=${APPLELOCALE:0:5}
+#Fail. Get a list of the locales in $PREFIX/share/locale that match
+#our two letter language code and pick the first one, special casing
+#english to set en_US
+    elif test $LANG == "en"; then
+       export LC_MESSAGES="en_US"
+    else
+       LOC=`find $PREFIX/share/locale -name $LANG???`
+       for L in $LOC; do 
+           export LC_MESSAGES=$L
+       done
+    fi
+else
+#All efforts have failed, so default to US english
+    export LANG="en_US"
+    export LC_MESSAGES="en_US"
+fi
 
 exec "$bundle_contents/MacOS/$name-bin"