added no-color option

[rinderschwein]

The plugin does not work with team city build chain and not with scala build tool without this patch, because there is no interactive shell.

[ben-eb]

I've also run into problems when running this task under spawn and capturing the output. For me, a better patch would be to check for process.stdout.clearLine and process.stdout.cursorTo methods when running the update function. Like this patch does. Perhaps something like this?

        var update = function()
        {
            // only call these if the env we're in
            // supports those methods
            if (process.stdout.clearLine && process.stdout.cursorTo) {
                if (!total) {
                    return;
                }

                process.stdout.clearLine();
                process.stdout.cursorTo(0);

                var str = style('0%', 'yellow') + ' [ ',
                    arr = [],
                    count = total,
                    percent = ((100 / total) * completed).toFixed(2);

                while(count--) {
                    arr.push(count < completed ? '=' : ' ');
                }
                str += arr.reverse().join('');
                str += ' ] ' + style(percent + "%", 'green') + ' (' + ((new Date() - start) / 1000).toFixed(1) + 's) ';
                process.stdout.write(str);
            }
        };

grunt --no-color, in my opinion, should preserve all functionality that the task had before, just removing the ANSI code from the output.

[jkleijn]

Ah, I did something similar to get the task to work with Jenkins.