require 'rubygems'
require 'rake'
require 'rake/gempackagetask'
task :default => [:buildext]
SPECFILE = 'rbot.gemspec'
# The Rakefile is also used after installing the gem, to build
# the .mo files. Since in this case the SPECFILE is not available,
# we must (and can) skip defining the gem packaging tasks.
if File.exist? SPECFILE
spec = eval(File.read(SPECFILE), nil, SPECFILE)
Rake::GemPackageTask.new(spec) do |pkg|
pkg.need_zip = true
pkg.need_tar = true
end
end
# normalize a po/pot file
def normalize_po(fn)
content = File.read(fn)
# sort the messages by file location
if MSGCAT
sorted = `#{MSGCAT} --width=79 --sort-by-file #{fn}`
if sorted != content
content = sorted
modified = true
end
end
# replace project-id-version placholder
modified |= content.sub!(/^("Project-Id-Version: )PACKAGE VERSION(\\n")$/) {
"#{$1}rbot#{$2}"
}
if modified
File.open(fn, 'w') {|f| f.write content}
end
end
PLUGIN_FILES = FileList['data/rbot/plugins/**/*.rb']
NON_PLUGIN_FILES = FileList["{lib,bin,data}/**/*.{rb,rhtml}"] - PLUGIN_FILES
# this task defines how po files and pot files are made. those rules are not defined
# normally because po and pot files should be only updated in the updatepo task,
# but po files are also prereqs for makemo
task :define_po_rules do
# generate pot file from rb files
rgettext_proc = proc do |t|
require 'gettext/utils'
source_files, pot_file = t.prerequisites, t.name
new_pot_file = "#{pot_file}.new"
puts "#{source_files.join(', ')} => #{pot_file}"
GetText.rgettext(source_files, new_pot_file)
# only use the new pot file if it contains unique messages
if File.exists?(pot_file) && MSGCOMM && `#{MSGCOMM} --unique #{pot_file} #{new_pot_file}`.empty?
rm new_pot_file
else
mv new_pot_file, pot_file
end
normalize_po(pot_file)
# save all this work until rb files are updated again
touch pot_file
end
# generate pot file for non-plugin files
file('po/rbot.pot' => NON_PLUGIN_FILES, &rgettext_proc)
# generate pot files for plugin files
rule(%r'^po/.+\.pot$' => proc {|fn|
PLUGIN_FILES.select {|f| f.pathmap('rbot-%n') == fn.pathmap('%n')}
}, &rgettext_proc)
# map the po file to its source pot file
pot_for_po = proc {|fn| fn.pathmap '%{^po/.+/,po/}X.pot'}
# update po file from pot file
msgmerge_proc = proc do |t|
require 'gettext/utils'
po_file, pot_file = t.name, t.source
puts "#{pot_file} => #{po_file}"
if File.exists? po_file
sh "#{MSGMERGE} --backup=off --update #{po_file} #{pot_file}"
elsif MSGINIT
locale = po_file[%r'^po/(.+)/.+\.po$', 1]
sh "#{MSGINIT} --locale=#{locale} --no-translator --input=#{pot_file} --output-file=#{po_file}"
else
warn "#{po_file} is missing and cannot be generated without msginit"
next
end
normalize_po(po_file)
touch po_file
end
# generate English po files
file(%r'^po/en_US/.+\.po$' => pot_for_po) do |t|
po_file, pot_file = t.name, t.source
if MSGEN
sh "#{MSGEN} --output-file=#{po_file} #{pot_file}"
normalize_po(po_file)
touch po_file
else
msgmerge_proc.call t
end
end
# update po files
rule(%r'^po/.+/.+\.po$' => pot_for_po, &msgmerge_proc)
end
# generate mo files
rule(%r'^data/locale/.+/LC_MESSAGES/.+\.mo$' => proc {|fn|
[ fn.pathmap('%{^data/locale,po;LC_MESSAGES/,}X.po'),
# the directory is created if not existing
fn.pathmap('%d') ]
}) do |t|
po_file, mo_file = t.source, t.name
puts "#{po_file} => #{mo_file}"
require 'gettext/utils'
GetText.rmsgfmt po_file, mo_file
end
task :check_po_tools do
have = {}
po_tools = {
'msgmerge' => {
:options => %w[--backup= --update],
:message => 'Cannot update po files' },
'msginit' => {
:options => %w[--locale= --no-translator --input= --output-file=],
:message => 'Cannot generate missing po files' },
'msgcomm' => {
:options => %w[--unique],
:message => 'Pot files may be modified even without message change' },
'msgen' => {
:options => %w[--output-file],
:message => 'English po files will not be generated' },
'msgcat' => {
:options => %w[--width= --sort-by-file],
:message => 'Pot files will not be normalized' }
}
po_tools.each_pair do |command, value|
path = ENV["#{command.upcase}_PATH"] || command
have_it = have[command] = value[:options].all? do |option|
`#{path} --help`.include? option
end
Object.const_set(command.upcase, have_it ? path : false)
warn "#{command} not found. #{value[:message]}" unless have_it
end
abort unless MSGMERGE
end
PLUGIN_BASENAMES = PLUGIN_FILES.map {|f| f.pathmap('%n')}
LOCALES = FileList['po/*/'].map {|d| d.pathmap('%n')}
LOCALES.each do |l|
directory "data/locale/#{l}/LC_MESSAGES"
end
desc 'Update po files'
task :updatepo => [:define_po_rules, :check_po_tools] + LOCALES.map {|l|
["po/#{l}/rbot.po"] +
PLUGIN_BASENAMES.map {|n| "po/#{l}/rbot-#{n}.po"}
}.flatten
desc 'Normalize po files'
task :normalizepo => :check_po_tools do
FileList['po/*/*.po'].each {|fn| normalize_po(fn)}
end
# this task invokes makemo if ruby-gettext is available, but otherwise succeeds
# with a warning instead of failing. it is to be used by Gem's extension builder
# to make installation not fail because of lack of ruby-gettext
task :buildext do
begin
require 'gettext/utils'
Rake::Task[:makemo].invoke
rescue LoadError
warn 'Ruby-gettext cannot be located, so mo files cannot be built and installed'
end
end
desc 'Generate mo files'
task :makemo =>
FileList['po/*/*.po'].pathmap('%{^po,data/locale}d/LC_MESSAGES/%n.mo')
