Backported r2573, r2591 and r2592 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/0.8-stable@2593 e93f8b46-1217-0410-a6f0-8f06a7374b81

doc/CHANGELOG

@@ -5,6 +5,13 @@ Copyright (C) 2006-2009  Jean-Philippe Lang
 http://www.redmine.org/
 
 
+== 2009-xx-xx v0.8.3
+
+* Ability to set language for redmine:load_default_data task using REDMINE_LANG environment variable
+* Rescue Redmine::DefaultData::DataAlreadyLoaded in redmine:load_default_data task
+* Flush buffer when asking for language in redmine:load_default_data task
+
+
 == 2009-03-07 v0.8.2
 
 * Send an email to the user when an administrator activates a registered user

lib/tasks/load_default_data.rake

@@ -1,26 +1,32 @@
-desc 'Load Redmine default configuration data'
+desc 'Load Redmine default configuration data. Language is chosen interactively or by setting REDMINE_LANG environment variable.'
 
 namespace :redmine do
   task :load_default_data => :environment do
     include GLoc
     set_language_if_valid('en')
-    puts
     
-    while true
-      print "Select language: "
-      print GLoc.valid_languages.sort {|x,y| x.to_s <=> y.to_s }.join(", ")
-      print " [#{GLoc.current_language}] "
-      lang = STDIN.gets.chomp!
-      break if lang.empty?
-      break if set_language_if_valid(lang)
-      puts "Unknown language!"
+    envlang = ENV['REDMINE_LANG']
+    if !envlang || !set_language_if_valid(envlang)
+      puts
+      while true
+        print "Select language: "
+        print GLoc.valid_languages.sort {|x,y| x.to_s <=> y.to_s }.join(", ")
+        print " [#{GLoc.current_language}] "
+        STDOUT.flush
+        lang = STDIN.gets.chomp!
+        break if lang.empty?
+        break if set_language_if_valid(lang)
+        puts "Unknown language!"
+      end
+      STDOUT.flush
+      puts "===================================="
     end
     
-    puts "===================================="
-    
     begin
       Redmine::DefaultData::Loader.load(current_language)
       puts "Default configuration data loaded."
+    rescue Redmine::DefaultData::DataAlreadyLoaded => error
+      puts error
     rescue => error
       puts "Error: " + error
       puts "Default configuration data was not loaded."