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#!/bin/sh

# PRE-COMMIT HOOK

#

# The pre-commit hook is invoked before a Subversion txn is

# committed.  Subversion runs this hook by invoking a program

# (script, executable, binary, etc.) named 'pre-commit' (for which

# this file is a template), with the following ordered arguments:

#

#   [1] REPOS-PATH   (the path to this repository)

#   [2] TXN-NAME     (the name of the txn about to be committed)

#

# The default working directory for the invocation is undefined, so

# the program should set one explicitly if it cares.

#

# If the hook program exits with success, the txn is committed; but

# if it exits with failure (non-zero), the txn is aborted, no commit

# takes place, and STDERR is returned to the client.   The hook

# program can use the 'svnlook' utility to help it examine the txn.

#

# On a Unix system, the normal procedure is to have 'pre-commit'

# invoke other programs to do the real work, though it may do the

# work itself too.

#

#   ***  NOTE: THE HOOK PROGRAM MUST NOT MODIFY THE TXN, EXCEPT  ***

#   ***  FOR REVISION PROPERTIES (like svn:log or svn:author).   ***

#

#   This is why we recommend using the read-only 'svnlook' utility.

#   In the future, Subversion may enforce the rule that pre-commit

#   hooks should not modify the versioned data in txns, or else come

#   up with a mechanism to make it safe to do so (by informing the

#   committing client of the changes).  However, right now neither

#   mechanism is implemented, so hook writers just have to be careful.

#

# Note that 'pre-commit' 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-commit.bat' or 'pre-commit.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

# http://svn.collab.net/repos/svn/trunk/tools/hook-scripts/ and

# http://svn.collab.net/repos/svn/trunk/contrib/hook-scripts/

REPOS="$1"

TXN="$2"

# Make sure that the log message contains some text.

SVNLOOK=/usr/local/bin/svnlook

$SVNLOOK log -t "$TXN" "$REPOS" | \

   grep "[a-zA-Z0-9]" > /dev/null || exit 1

# Check that the author of this commit has the rights to perform

# the commit on the files and directories being modified.

commit-access-control.pl "$REPOS" "$TXN" commit-access-control.cfg || exit 1

# All checks passed, so allow the commit.

exit 0