The method you suggest is how we were first going to do a "one time script",
but then we saw the "creates" parameter.
What is the Creates parameter for then? Is it just redundant to [unless =>
"test -e MYFILE"]
---
Thanks,
Allan Marcus
505-667-5666
On Mar 4, 2010, at 2:36 PM, Steven VanDevender wrote:
> Pete Emerson writes:
>> If you don't care about the contents of the file, just whether it's
>> there or not:
>>
>> unless => "/usr/bin/file MYFILE"
>>
>> or
>>
>> unless => "/usr/bin/stat MYFILE"
>>
>> or
>>
>> unless => "/bin/ls MYFILE"
>>
>> should all be pretty lightweight
>
> Actually, if all "unless" looks at is the return code of the command I
> would probably go with
>
> unless => "test -e MYFILE"
>
> If you use "test" you could also do more sophisticated things like
> require the presence of a real file with "-f" and combine other tests for
> permissions or ownership.
>
>> On Thu, Mar 4, 2010 at 12:06 PM, Patrick <kc7...@gmail.com> wrote:
>>>
>>> On Mar 4, 2010, at 7:29 AM, Allan Marcus wrote:
>>>
>>>> A file that this command creates. If this
>>>> parameter is provided, then the command will only be run
>>>> if the specified file does not exist::
>>>>
>>>> exec { \"tar xf /my/tar/file.tar\":
>>>> cwd => \"/var/tmp\",
>>>> creates => \"/var/tmp/myfile\",
>>>> path => [\"/usr/bin\", \"/usr/sbin\"]
>>>> }
>>>>
>>>>
>>>> Is there a way to set the content of this file (/var/tmp/myfile) using
>>>> some additional parameter in the above syntax?
>>>
>>> This isn't the "right" way to do it, and you may have performance issues
>>> depending on the size of the file, but you can always combine grep with
>>> unless.
>>>
>>> If you want to re-extract the file if the file doesn't contain "testString"
>>> this should work.
>>>
>>> exec { "tar xf /my/tar/file.tar":
>>> cwd => "/var/tmp",
>>> creates => "/var/tmp/myfile",
>>> path => ["/usr/bin", "/usr/sbin"],
>>> unless => "grep testString myfile",
>>> }
>>>
>>>
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