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|
=begin
tools.rb - Utility functions
Copyright (C) 2005-2008 Masao Mutoh
You may redistribute it and/or modify it under the same
license terms as Ruby or LGPL.
=end
require 'rbconfig'
if /mingw|mswin|mswin32/ =~ RUBY_PLATFORM
ENV['PATH'] = %w(bin lib).collect{|dir|
"#{Config::CONFIG["prefix"]}\\lib\\GTK\\#{dir};"
}.join('') + ENV['PATH']
end
require 'gettext/tools/rgettext'
require 'gettext/tools/rmsgfmt'
require 'gettext/runtime/mofile'
require 'fileutils'
module GetText
bindtextdomain "rgettext"
BOM_UTF8 = [0xef, 0xbb, 0xbf].pack("c3")
# Currently, GNU msgmerge doesn't accept BOM.
# This mesthod remove the UTF-8 BOM from the po-file.
def remove_bom(path) #:nodoc:
bom = IO.read(path, 3)
if bom == BOM_UTF8
data = IO.read(path)[3..-1]
File.open(path, "w") {|f| f.write(data)}
end
end
# Merges two Uniforum style .po files together.
#
# *Note* This function requires "msgmerge" tool included in GNU GetText. So you need to install GNU GetText.
#
# The def.po file is an existing PO file with translations which will be taken
# over to the newly created file as long as they still match; comments will be preserved,
# but extracted comments and file positions will be discarded.
#
# The ref.pot file is the last created PO file with up-to-date source references but
# old translations, or a PO Template file (generally created by rgettext);
# any translations or comments in the file will be discarded, however dot
# comments and file positions will be preserved. Where an exact match
# cannot be found, fuzzy matching is used to produce better results.
#
# Usually you don't need to call this function directly. Use GetText.update_pofiles instead.
#
# * defpo: a po-file. translations referring to old sources
# * refpo: a po-file. references to new sources
# * app_version: the application information which appears "Project-Id-Version: #{app_version}" in the pot/po-files.
# * Returns: self
def msgmerge(defpo, refpo, app_version, options={})
verbose = options.delete(:verbose)
puts "msgmerge called" if verbose
$stderr.print defpo + " "
content = merge_po_files(defpo,refpo,options.delete(:msgmerge),verbose)
if content.empty?
# report failure
failed_filename = refpo + "~"
FileUtils.cp(refpo, failed_filename)
$stderr.puts _("Failed to merge with %{defpo}") % {:defpo => defpo}
$stderr.puts _("New .pot was copied to %{failed_filename}") %{:failed_filename => failed_filename}
raise _("Check these po/pot-files. It may have syntax errors or something wrong.")
else
# update version and save merged data
content.sub!(/(Project-Id-Version\:).*$/, "\\1 #{app_version}\\n\"")
File.open(defpo, "w") {|f|f.write(content)}
end
self
end
# Creates mo-files using #{po_root}/#{lang}/*.po an put them to
# #{targetdir}/#{targetdir_rule}/.
#
# This is a convenience function of GetText.rmsgfmt for multiple target files.
# * options: options as a Hash.
# * verbose: true if verbose mode, otherwise false
# * po_root: the root directory of po-files.
# * mo_root: the target root directory where the mo-files are stored.
# * mo_path_rule: the target directory for each mo-files.
def create_mofiles(options = {})
options = {:po_root => "./po"}.merge(options)
Dir.glob(File.join(options[:po_root], "*/*.po")) do |po_file|
mo_file = mo_file_from_po_file(po_file,options)
$stderr.print %Q[#{po_file} -> #{mo_file} ... ] if options[:verbose]
FileUtils.mkdir_p(File.dirname(mo_file))
rmsgfmt(po_file, mo_file)
$stderr.puts "Done." if options[:verbose]
end
end
# At first, this creates the #{po_root}/#{domainname}.pot file using GetText.rgettext.
# In the second step, this updates(merges) the #{po_root}/#{domainname}.pot and all of the
# #{po_root}/#{lang}/#{domainname}.po files under "po_root" using "msgmerge".
#
# *Note* "msgmerge" tool is included in GNU GetText. So you need to install GNU GetText.
#
# See <HOWTO maintain po/mo files(http://www.yotabanana.com/hiki/ruby-gettext-howto-manage.html)> for more detals.
# * domainname: the textdomain name.
# * targetfiles: An Array of target files, that should be parsed for messages (See GetText.rgettext for more details).
# * app_version: the application information which appears "Project-Id-Version: #{app_version}" in the pot/po-files.
# * options: a hash with following possible settings
# :lang - update files only for one language - the language specified by this option
# :po_root - the root directory of po-files
# :msgmerge - an array with the options, passed through to the gnu msgmerge tool
# symbols are automatically translated to options with dashes,
# example: [:no_wrap, :no_fuzzy_matching, :sort_output] translated to '--no-fuzzy-matching --sort-output'
# :verbose - true to show verbose messages. default is false.
#
# Example: GetText.update_pofiles("myapp", Dir.glob("lib/*.rb"), "myapp 1.0.0", :verbose => true)
def update_pofiles(textdomain, files, app_version, options = {})
puts options.inspect if options[:verbose]
#write found messages to tmp.pot
temp_pot = "tmp.pot"
rgettext(files, temp_pot)
#merge tmp.pot and existing pot
po_root = options.delete(:po_root) || "po"
FileUtils.mkdir_p(po_root)
msgmerge("#{po_root}/#{textdomain}.pot", temp_pot, app_version, options.dup)
#update local po-files
only_one_language = options.delete(:lang)
if only_one_language
msgmerge("#{po_root}/#{only_one_language}/#{textdomain}.po", temp_pot, app_version, options.dup)
else
Dir.glob("#{po_root}/*/#{textdomain}.po") do |po_file|
msgmerge(po_file, temp_pot, app_version, options.dup)
end
end
File.delete(temp_pot)
end
private
# Merge 2 po files, using msgmerge
def merge_po_files(po_a,po_b,msgmerge_options=[],verbose=false)
return File.read(po_b) unless FileTest.exist? po_a
cmd = ENV["MSGMERGE_PATH"] || "msgmerge"
ensure_command_exists(cmd)
remove_bom(po_a)
cmd_params = array_to_cli_options(msgmerge_options)
to_run = "#{cmd} #{cmd_params} #{po_a} #{po_b}"
puts "\nrunning #{to_run}" if verbose
`#{to_run}`
end
# convert an array of String/Symbol to cli options
def array_to_cli_options(array)
[*array].map do |o|
o.kind_of?(Symbol) ? "--#{o}".gsub('_','-') : o.to_s
end.join(' ')
end
def ensure_command_exists(cmd)
`#{cmd} --help`
unless $? && $?.success?
raise _("`%{cmd}' can not be found. \nInstall GNU Gettext then set PATH or MSGMERGE_PATH correctly.") % {:cmd => cmd}
end
end
# where lies the mo file for a given po_file
# generare directory unless it exists
def mo_file_from_po_file(po_file,options)
options = {
:mo_root => "./data/locale",
:mo_path_rule => "%{lang}/LC_MESSAGES"
}.merge(options)
lang, textdomain = %r[/([^/]+?)/(.*)\.po].match(po_file[options[:po_root].size..-1]).to_a[1,2]
mo_dir_rule = File.join(options[:mo_root], options[:mo_path_rule])
mo_dir = mo_dir_rule % {:lang => lang}
File.join(mo_dir, "#{textdomain}.mo")
end
end
if __FILE__ == $0
GetText.update_pofiles("foo", ARGV, "foo 1.1.0")
end
|
