Can I customize the svnadmin create process? - linux

Question

I have many different repositories setup on my server. I need to have an identical post-commit hook file in every one of those repos. Simple enough for existing, but is there a way to have calls to svnadmin create automatically copy a post-commit stub file to the new hooks directory? Essentially I'm looking for a post-svnadmin-create hook. Thanks!

Answer 1

I think your best bet would be to wrap the call to svnadmin create in a script that creates the hooks after the repo.

Answer 2

Agreed as long as there is not some built-in way, which there seems not to be. I would have expected subversion to sport something like the customizable skeleton directory for new Linux users. Too bad.
Here is my wrapper with comments if anyone can find it useful - should be fairly extendable. If anyone notices any glaring gotchas in it, don't hesitate - I'm neither a bash nor Linux expert but I think I got most of it covered, and it works :)
# -----------------------------------------------------------------------
# A wrapper for svnadmin to allow post operations following repo creation - copying custom
# hook files into repo in this case. This should be run as root.
# capture input args; note that args[0] == $#[1] (this script name is not captured here)
args=("$#");
# redirect args to svnadmin in all cases - this script should not modify the behavior of svnadmin.
# note: the original binary "/binary_path/svnadmin" has been renamed "/binary_path/svnadmin-wrapped" and
# this script was then named "/binary_path/svnadmin" and given identical user:group & permissions as
# the original.
sudo -u svnuser svnadmin-wrapped ${args[#]};
# capture return code so we can return on exit; svnadmin returns 0 for success
eCode=$?;
# find out if sub-command to svnadmin was "create" and, if so, note the index of the directory arg,
# which is not necessarily going to be in the same position each time (options may be specified
# before the sub-command).
path_idx=0;
found=0;
for i in ${args[#]}
do
# track index; pre-incerement
((path_idx++));
if [ $i == "create" ]
then
# found repo path
((found++));
break;
fi
done
# we now know if the subcommand was create and where the repo path is - finish up as needed.
# note that this block assumes that our hook file stubs are /stub_path/ (owned by root)
# and that there exists a custom log file at /stub_path/cust-log (also owned by root).
d=`date`;
if [ $found != 0 ]
then
# check that the command succeeded
if [ $eCode == 0 ]
then
# check that the directory exists
if [ -d "${args[$path_idx]}/hooks" ]
then
# copy our custom hooks into place
sudo -u svnuser cp "/stub_path/post-commit" "${args[$path_idx]}/hooks/post-commit";
sudo -u svnuser cp "/stub_path/post-revprop-change" "${args[$path_idx]}/hooks/post-revprop-change";
else
# unlikey failure; set custom error code here; log issue
echo "$d svnadmin wrapper error: svnadmin 'create' succeeded but the 'hooks' directory was not found! Params: ${args[#]}" >> "/stub_path/cust-log";
let "eCode=1325";
fi
else
# tried to create but svnadmin failed; log issue
echo "$d svnadmin wrapper error: svnadmin 'create' was called but failed! Params: ${args[#]}" >> "/stub_path/cust-log";
fi
fi
exit $eCode;
-Thanks to all who host and post!