I get an error whenever I try to use the function gets within a rake task. Is there a way to make it work?
The error says, "no such file or directory - (rake task name)"
Asked
Active
Viewed 8,146 times
84
-
The error message seems pretty self explanatory... – Mitch Wheat Feb 23 '09 at 08:05
-
7It might seem so, but it's not. See my answer below. There is quite a bit of confusion about the difference between Kernel#gets and STDIN.gets. – James A. Rosen Feb 23 '09 at 14:49
2 Answers
166
The problem is that Kernel#gets (which is what you're calling if you just use gets by itself) assumes you're pulling from a file named by the arguments passed to Rake. That means gets tries to return the content of a file called [rake-task-here], which almost certainly doesn't exist.
Try STDIN.gets.
Kerrick
- 7,420
- 8
- 40
- 45
James A. Rosen
- 64,193
- 61
- 179
- 261
-
3Small nit picking: `$stdin` is probably preferable over `STDIN` here, also see https://stackoverflow.com/a/4279689/968531 – NobodysNightmare Jul 24 '18 at 12:17
-4
I don't think that you should be using gets in a rake task, if you need to get input from the command line you probably should pass it in as a parameter, but if you post some code that is not working then I am sure you will get a better answer.
nitecoder
- 5,496
- 1
- 28
- 35
-
22In general, command line arguments _are_ a better option, but there are plenty of good reasons to use gets within a rake task. Most of them have to do with authentication or verification that you really want to be doing what you tell rake to do. ("deploy production code") – James A. Rosen Feb 23 '09 at 14:55