Dave Burt
6/6/2005 9:20:00 AM
"Caleb Clausen" <vikkous@gmail.com> asked:
> So, is there a way to save a set of irb commands that I just typed to
> a file, so they can be rerun later? Better yet, I'd like to save the
> results of the commands too, and check to see if any results have
> changed on a re-run.
I added the following to my ~/.irbrc
module IRB
def IRB.history; @history; end
@history = ""
class WorkSpace
alias old_evaluate evaluate
def evaluate(context, statements, file = __FILE__, line = __LINE__)
result = old_evaluate(context, statements, file, line)
if /IRB\.history/.match(statements)
IRB.history << "#{statements.chomp}\n"
else
IRB.history << "#{statements.chomp} #=> #{result.inspect}\n"
end
result
end
end
end
This will automatically collect your irb session history in the string
IRB.history. It might look like this:
a = 1 + 2 #=> 3
puts a #=> nil
One difference between this and the history thing on the wiki is that this
one saves the expected result in a comment after the line. Another is that
this will save a whole session of commands, whereas the wiki version is for
persistent history between sessions.
Cheers,
Dave