Class: Notice

Inherits:
Object
  • Object
show all
Defined in:
lib/notice.rb

Constant Summary collapse

STATES = 
{
    :busy   => "\x1B[1m[\x1B[0m\x1B[34mBUSY\x1B[0m\x1B[1m]\x1B[0m",
    :fail   => "\x1B[1m[\x1B[0m\x1B[1;31mFAIL\x1B[0m\x1B[1m]\x1B[0m",
    :done   => "\x1B[1m[\x1B[0m\x1B[1;32mDONE\x1B[0m\x1B[1m]\x1B[0m"
}
@@STACK = 
{}
@@width = 
nil

Instance Method Summary collapse

Constructor Details

#initialize(name, &block) ⇒ Notice

Returns a new instance of Notice.



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# File 'lib/notice.rb', line 11

def initialize(name, &block)
    @@width ||= get_width
    line = create_line(name.dup)
    @@STACK[name.to_s] ||= lambda { true }
    @@STACK[name.to_s] = block if block
    STDOUT.print line + STATES[:busy]
    STDOUT.print "\r#{line}#{(@@STACK[name.to_s].call ? STATES[:done] : STATES[:fail])}\n"
end

Instance Method Details

#create_line(name) ⇒ Object 



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# File 'lib/notice.rb', line 20

def create_line(name)
    name = if name.size > (@@width - 10)
        name.gsub(/^(.{#{@@width - 10}}).*$/, '\1...')
    else
        name.ljust(@@width - 10, ' ')
    end
    " \x1B[1;34m::\x1B[0m \x1B[1m#{name}\x1B[0m"
end

#get_width ⇒ Object 



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# File 'lib/notice.rb', line 29

def get_width
    default = 80
    begin
        tiocgwinsz = 0x5413
        data = [0, 0, 0, 0].pack('SSSS')
        if STDOUT.ioctl(tiocgwinsz, data) >= 0
            rows, cols, xpixels, ypixels = data.unpack('SSSS')
            (cols >= 0 ? cols : default)
        else
            default
        end
    rescue Exception => e
        default
    end
end