Обсуждение: send password to pg_dump

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send password to pg_dump

От
shaunc
Дата:
Hello,

I'm trying to run pg_dump programmatically, and I'm wondering how I can send
it a password.

I'm running it with a system() call in a child process, and sending the
password in from the parent process on stdin, but somehow pg_dump always
finds out how to ask my terminal for a password. How do I fool it?

(I need this to work in linux... in python would be preferable too.)

Thanks for any advice.

- Shaun
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Re: send password to pg_dump

От
Andrew Dunstan
Дата:
shaunc wrote:
> Hello,
>
> I'm trying to run pg_dump programmatically, and I'm wondering how I can send
> it a password.
>
> I'm running it with a system() call in a child process, and sending the
> password in from the parent process on stdin, but somehow pg_dump always
> finds out how to ask my terminal for a password. How do I fool it?
>
> (I need this to work in linux... in python would be preferable too.)
>
>
>   

1. this is the wrong forum for this question - here we discuss 
postgresql developments, not usage
2. use a pgpass file, possibly with a PGPASSFILE environment setting as 
well - see the docs for details. This works on all platforms and should 
work with anything at all calling pg_dump.
3. In general, the only way to "fool" programs properly this way is to 
use expect or some equivalent that uses ptys. In this case, it would be 
overkill.

cheers

andrew