From: David Balmain <dbalmain.ml@...>
Date: 2006-06-03T11:50:41+09:00
Subject: Re: Rake questions

Hi Eric,

I'm by no means a rake expert but since no-one else has answered;

On 6/3/06, Eric Armstrong <Eric.Armstrong@sun.com> wrote:
> 1. Is there some reason to prefer
>       sh %{ls -ltr}
>     over
>       sh "ls -ltr"
>     ?

Perhaps so that you can do this;

    sh %{grep "long long" *}

without having to escape the double quotes. Just a guess.

> 2. My standard csh idiom for creating a log
>     file is this:
>         ls |& tee test.log
>
>     But when I try that in sh, the process
>     hangs, and nothing is written. truss
>     shows this:
>       waitid(P_PID, ...WEXITED|WTRAPPED|WNOWAIT)
>       (sleeping...)
>
>     Is there a Rakefile idiom for displaying
>     execution results and also saving them
>     in a file?

I'd do this;

    def tee(output, file_name)
      puts output
      File.open(file_name, "a") {|f| f << output }
    end

    task :default do
      tee `ls`, "out.log"
    end

> 3. A single quote (') in a comment causes a parse
>     error. Is this a known rake bug? If not,
>     what's the best way to report it?

I'm not sure exactly what you mean by this. Are you saying

    # this is a comment with a quote '

causes a parse error? Anyway, I'm not sure where to report bugs to
Rake but I'd probably try the devel mailing list;

    http://rubyforge.org/mailman/listinfo/rake-devel

They should at least point you in the right direction.