运行rake assets:precompile
时如何避免默认输出
解决方案是添加-q
你的命令,
例如executing "cd /var/www/my_app/releases/20120731082050 && bundle exec rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile -q"
分析如下,如果你想看:
# :gem_path/actionpack/lib/sprockets/assets.rake
namespace :assets do
# task entry, it will call invoke_or_reboot_rake_task
task :precompile do
invoke_or_reboot_rake_task "assets:precompile:all"
end
# it will call ruby_rake_task
def invoke_or_reboot_rake_task(task)
ruby_rake_task task
end
# it will call ruby
def ruby_rake_task(task, fork = true)
env = ENV['RAILS_ENV'] || 'production'
groups = ENV['RAILS_GROUPS'] || 'assets'
args = [$0, task,"RAILS_ENV=#{env}","RAILS_GROUPS=#{groups}"]
ruby(*args)
end
end
# :gem_path/rake/file_utils.rb
module FileUtils
# it will call sh
def ruby(*args,&block)
options = (Hash === args.last) ? args.pop : {}
sh(*([RUBY] + args + [options]), &block)
end
# it will call set_verbose_option
# and if options[:verbose] == true, it do not output cmd
# but default of options[:verbose] is an object
def sh(*cmd, &block)
# ...
set_verbose_option(options)
# ...
Rake.rake_output_message cmd.join(" ") if options[:verbose]
# ...
end
# default of options[:verbose] is Rake::FileUtilsExt::DEFAULT, which is an object
def set_verbose_option(options) # :nodoc:
unless options.key? :verbose
options[:verbose] =
Rake::FileUtilsExt.verbose_flag == Rake::FileUtilsExt::DEFAULT ||
Rake::FileUtilsExt.verbose_flag
end
end
end
# :gem_path/rake/file_utils_ext.rb
module Rake
module FileUtilsExt
DEFAULT = Object.new
end
end
# :gem_path/rake/application.rb
# the only to solve the disgusting output when run `rake assets:precompile`
# is add a `-q` option.
['--quiet', '-q',
"Do not log messages to standard output.",
lambda { |value| Rake.verbose(false) }
],
['--verbose', '-v',
"Log message to standard output.",
lambda { |value| Rake.verbose(true) }
],