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namespace :haml do
desc 'Convert html.erb to html.haml each file in app/views'
task :erb2haml do
erb_files = Dir.glob('app/views/**/*.erb').select { |f| File.file? f}
haml_files = Dir.glob('app/views/**/*.haml').select { |f| File.file? f}
if erb_files.empty?
puts "No .erb files found. Task will now exit."
exit
end
erb_files_to_convert = erb_files.dup
haml_files_w_out_ext = haml_files.map { |f| f.gsub(/\.haml\z/, '') }
# Get a list of all those erb files that already seem to have .haml equivalents
already_existing = erb_files.select { |f| short = f.gsub(/\.erb\z/, ''); haml_files_w_out_ext.include?(short) }
puts '-'*80
if already_existing.any?
puts "Some of your .html.erb files seem to already have .haml equivalents:"
already_existing.map { |f| puts "\t#{f}" }
if ENV.has_key?("HAML_RAILS_OVERWRITE_HAML") && (ENV["HAML_RAILS_OVERWRITE_HAML"] == "false")
should_overwrite = 'n'
else
# Ask the user whether he/she would like to overwrite them.
begin
puts "Would you like to overwrite these .haml files? (y/n)"
should_overwrite = STDIN.gets.chomp.downcase[0]
end until ['y', 'n'].include?(should_overwrite)
end
puts '-'*80
# If we are not overwriting, remove each already_existing from our erb_files list
if should_overwrite == 'n'
erb_files_to_convert = erb_files - already_existing
if erb_files_to_convert.empty?
# It is possible no .erb files remain, after we remove already_existing
puts "No .erb files to convert"
end
else
# Delete the current .haml
already_existing.each { |f| File.delete(f.gsub(/\.erb\z/, '.haml')) }
end
end
erb_files_to_convert.each do |file|
puts "Generating HAML for #{file}..."
`html2haml #{file} #{file.gsub(/\.erb\z/, '.haml')}`
end
puts '-'*80
puts "HAML generated for the following files:"
erb_files_to_convert.each do |file|
puts "\t#{file}"
end
puts '-'*80
if ENV.has_key?("HAML_RAILS_DELETE_ERB") && (ENV["HAML_RAILS_DELETE_ERB"] == "true")
should_delete = 'y'
else
begin
puts 'Would you like to delete the original .erb files? (This is not recommended unless you are under version control.) (y/n)'
should_delete = STDIN.gets.chomp.downcase[0]
end until ['y', 'n'].include?(should_delete)
end
if should_delete == 'y'
puts "Deleting original .erb files."
File.delete(*erb_files)
else
puts "Please remember to delete your .erb files once you have ensured they were translated correctly."
end
puts '-'*80
puts "Task complete!"
end
end
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