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Re: Problem with python + hook

From: Ryan Schmidt <subversion-2008c_at_ryandesign.com>
Date: Sun, 24 Aug 2008 22:46:47 -0500

On Aug 24, 2008, at 22:30, John Niven wrote:

>> At the top of "post-commit" file, I put:
>> #!/usr/bin/python
>> I also tried:
>> #!/usr/bin/env python
> I suspect it would need to be...
> #!/usr/bin/env /usr/bin/python

Asking the env program where python is won't work since as I said the
environment will be empty. Just specify the absolute path to the
binary that should execute the script:


> As far as I can remember the "#!/usr/bin/env ..." idiom is necessary
> with Python, and since your hook scripts run with no environment
> you'll
> need to specify where python is.

Oh it is? Well I don't know Python. I'm sure the env idiom is useful
when a path to python is in the environment, but even the Subversion
source comes with a Python script that does not use this strategy:


So I doubt it's absolutely required.

>> None of these have had any effect.

Did you also change to calling the absolute path of svn? See below.

>>>>>> call( "svn", "update", "--non-interactive", "/srv/http/website" )
>>> You need to specify the absolute path to the svn binary
>> (and any other
>>> binaries you want to use) since hooks run with an empty environment
>>> for security reasons.

Call svn with its absolute path as well, presumably:

call( "/usr/local/bin/svn", "update", "--non-interactive", "/srv/http/
website" )

Or wherever Subversion actually is on your system.

Capture all error and regular output from this process and write it
to a logfile of your own, with whatever syntax one uses for that in

If that doesn't help, try a simple post-commit hook which just writes
a line to a file. Does it work?

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Received on 2008-08-25 05:47:09 CEST

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