From: Julian Leviston <julian@...>
Date: 2009-02-04T11:05:45+09:00
Subject: Re: File.delete one-liner

File.delete(File.exists?(lockfile) ? lockfile : @lockfile)

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On 04/02/2009, at 5:07 AM, Joel VanderWerf <vjoel@path.berkeley.edu>  
wrote:

> David Stanford wrote:
>> Hi guys,
>> I'm looking for a single line that essentially deletes the lockfile
>> argument passed to the unlock method, or deletes the instance  
>> variable
>> (default) lockfile. Like this, but simpler:
>> @lockfile = some_other_lockfile
>> def self.unlock(lockfile)
>>  if File.exist?(lockfile)
>>    File.delete(lockfile)
>>  else
>>    File.delete(@lockfile)
>>  end
>> end
>> I was thinking of something along the following:
>> @lockfile = some_other_lockfile
>> def self.unlock
>>  File.delete(lockfile) || File.delete(@lockfile)
>> end
>> ...however, the File.delete method doesn't return a true/false value
>> based on its success.
>> Any tips? Thanks in advance!
>> -David
>
> Use exceptions?
>
> begin
>  File.delete(lf)
> rescue Errno::ENOENT
>  File.delete(@lf)
> end
>
>
> -- 
>      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407
>