Re: [Fab-user] I can't respond to prompts using Fabric "shell" or "run" verbs

[Niklas Lindström]

This was an eerie case of synchronicity. I had the exact same problem
about an hour ago.. :)

I could work around it by using the Fabric `prompt` operation though,
but since the use case was for adding users with passwords, I figure
perhaps adding something like a `secret_prompt` may be useful (using
the stdlib `getpass` module)?

Albeit to be safe it must be coupled with some mechanism for blanking
out the printout of the executed command.. Just off the top of my
head, how about some special variable expansion syntax for that; e.g.:

    secret_prompt('passwd', "Password for %s" % user, validate=r"^\w{6,}$")
    sudo("htpasswd -m -b /etc/apache2/dav_svn.passwd $(user) $(passwd:secret)")
    del config['passwd']

? Notice that last `del` as well, to cleanup the env unless
`secret_prompt` shouldn't add the value there (which of course forces
a rethink of how to do "secret variable expansion" as well)..

Best regards,
Niklas



On Tue, Dec 16, 2008 at 3:39 PM, Jeff Forcier <address@hidden> wrote:
> Hi David,
>
> Interactive prompting is still on the todo list, unfortunately. Fabric
> is capable of re-prompting for sudo and login passwords, but we
> haven't yet extended that to a more generic "is the remote end
> prompting us for input?" functionality (which is a harder nut to crack
> than simply parsing for a specific password prompt).
>
> So, you're not missing anything: that's just not possible right now.
> But we hope to have it implemented in the near future :)
>
> Best,
> Jeff
>
> On Tue, Dec 16, 2008 at 9:08 AM, Hancock, David (dhancock)
> <address@hidden> wrote:
>> I can't seem to see and respond to prompts (shell "read" commands) using the
>> Fabric shell, and I'd be grateful for people telling me what I'm doing
>> wrong.
>>
>> I'm trying to run the command line "/etc/init.d/oracle-xe configure" as part
>> of installing Oracle, and no matter whether I enter it at a "fab>" shell
>> prompt or via the run() command, the script reaches the first prompt and
>> stops. I can enter what I know is the correct responses, but they are not
>> accepted by the script and no furthe prompts appear.
>>
>> Other than that, we are having a great time using Fabric to automate or
>> semiautomate deployment of software to dev, test, and production boxes; it's
>> a very nice tool for us.
>>
>> Cheers!
>> --
>> David Hancock | address@hidden
>>
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>
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