root/hooks/pre-revprop-change.tmpl @ 464
| 462 | root | #!/bin/sh
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# PRE-REVPROP-CHANGE HOOK
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#
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# The pre-revprop-change hook is invoked before a revision property
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# is added, modified or deleted. Subversion runs this hook by invoking
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# a program (script, executable, binary, etc.) named 'pre-revprop-change'
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# (for which this file is a template), with the following ordered
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# arguments:
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#
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# [1] REPOS-PATH (the path to this repository)
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# [2] REVISION (the revision being tweaked)
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# [3] USER (the username of the person tweaking the property)
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# [4] PROPNAME (the property being set on the revision)
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# [5] ACTION (the property is being 'A'dded, 'M'odified, or 'D'eleted)
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#
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# [STDIN] PROPVAL ** the new property value is passed via STDIN.
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#
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# If the hook program exits with success, the propchange happens; but
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# if it exits with failure (non-zero), the propchange doesn't happen.
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# The hook program can use the 'svnlook' utility to examine the
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# existing value of the revision property.
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#
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# WARNING: unlike other hooks, this hook MUST exist for revision
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# properties to be changed. If the hook does not exist, Subversion
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# will behave as if the hook were present, but failed. The reason
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# for this is that revision properties are UNVERSIONED, meaning that
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# a successful propchange is destructive; the old value is gone
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# forever. We recommend the hook back up the old value somewhere.
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#
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# On a Unix system, the normal procedure is to have 'pre-revprop-change'
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# invoke other programs to do the real work, though it may do the
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# work itself too.
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#
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# Note that 'pre-revprop-change' must be executable by the user(s) who will
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# invoke it (typically the user httpd runs as), and that user must
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# have filesystem-level permission to access the repository.
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#
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# On a Windows system, you should name the hook program
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# 'pre-revprop-change.bat' or 'pre-revprop-change.exe',
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# but the basic idea is the same.
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#
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# The hook program typically does not inherit the environment of
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# its parent process. For example, a common problem is for the
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# PATH environment variable to not be set to its usual value, so
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# that subprograms fail to launch unless invoked via absolute path.
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# If you're having unexpected problems with a hook program, the
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# culprit may be unusual (or missing) environment variables.
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#
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# Here is an example hook script, for a Unix /bin/sh interpreter.
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# For more examples and pre-written hooks, see those in
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# /usr/share/subversion/hook-scripts, and in the repository at
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# http://svn.apache.org/repos/asf/subversion/trunk/tools/hook-scripts/ and
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# http://svn.apache.org/repos/asf/subversion/trunk/contrib/hook-scripts/
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REPOS="$1"
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REV="$2"
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USER="$3"
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PROPNAME="$4"
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ACTION="$5"
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if [ "$ACTION" = "M" -a "$PROPNAME" = "svn:log" ]; then exit 0; fi
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echo "Changing revision properties other than svn:log is prohibited" >&2
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exit 1
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