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From Alexander Shenkin <>
Subject Errors with mtime-retaining import script: pre-revprop-change issue?
Date Wed, 25 Jan 2012 15:09:56 GMT

I'm using the svn import script by Oliver Betz to retain file mtime upon
initial import (,
but i'm getting some errors.  I'm hoping someone might be able to help
me out.

when i run the script, i get the following error:

    $ perl
    svn propset svn:date 2001-10-29T18:34:10.000000Z --revprop -r HEAD
    svn: E175002: DAV request failed; it's possible that the
    repository's pre-revprop-change hook either failed or is non-existent
    svn: E175008: At least one property change failed; repository is
    svn: E175002: Error setting property 'date':
    Repository has not been enabled to accept revision propchanges;
    ask the administrator to create a pre-revprop-change hook

I do have a pre-revprop-change.tmpl hook in the repository.  It contains
the code below.  I'm using VisualSVN 2.5.2 on a Windows 7 x64 machine
with Cygwin Perl and TortoiseSVN.  Any help would be greatly appreciated!



$ cat pre-revprop-change.tmpl

# The pre-revprop-change hook is invoked before a revision property
# is added, modified or deleted.  Subversion runs this hook by invoking
# a program (script, executable, binary, etc.) named 'pre-revprop-change'
# (for which this file is a template), with the following ordered
# arguments:
#   [1] REPOS-PATH   (the path to this repository)
#   [2] REV          (the revision being tweaked)
#   [3] USER         (the username of the person tweaking the property)
#   [4] PROPNAME     (the property being set on the revision)
#   [5] ACTION       (the property is being 'A'dded, 'M'odified, or
#   [STDIN] PROPVAL  ** the new property value is passed via STDIN.
# If the hook program exits with success, the propchange happens; but
# if it exits with failure (non-zero), the propchange doesn't happen.
# The hook program can use the 'svnlook' utility to examine the
# existing value of the revision property.
# WARNING: unlike other hooks, this hook MUST exist for revision
# properties to be changed.  If the hook does not exist, Subversion
# will behave as if the hook were present, but failed.  The reason
# for this is that revision properties are UNVERSIONED, meaning that
# a successful propchange is destructive;  the old value is gone
# forever.  We recommend the hook back up the old value somewhere.
# On a Unix system, the normal procedure is to have 'pre-revprop-change'
# invoke other programs to do the real work, though it may do the
# work itself too.
# Note that 'pre-revprop-change' must be executable by the user(s) who will
# invoke it (typically the user httpd runs as), and that user must
# have filesystem-level permission to access the repository.
# On a Windows system, you should name the hook program
# 'pre-revprop-change.bat' or 'pre-revprop-change.exe',
# but the basic idea is the same.
# The hook program typically does not inherit the environment of
# its parent process.  For example, a common problem is for the
# PATH environment variable to not be set to its usual value, so
# that subprograms fail to launch unless invoked via absolute path.
# If you're having unexpected problems with a hook program, the
# culprit may be unusual (or missing) environment variables.
# Here is an example hook script, for a Unix /bin/sh interpreter.
# For more examples and pre-written hooks, see those in
# the Subversion repository at
# and


if [ "$ACTION" = "M" -a "$PROPNAME" = "svn:log" ]; then exit 0; fi

echo "Changing revision properties other than svn:log is prohibited" >&2
exit 1

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