Is there a way to edit the log message of a certain revision in Subversion? I accidentally wrote the wrong filename in my commit message which could be confusing later.
I've seen How do I edit an incorrect commit message in Git?, but the solution to that question doesn't seem to be similar for Subversion (according to svn help commit).
Essentially you have to have admin rights (directly or indirectly) to the repository to do this. You can either configure the repository to allow all users to do this, or you can modify the log message directly on the server.
See this part of the Subversion FAQ (emphasis mine):
Log messages are kept in the repository as properties attached to each revision. By default, the log message property (svn:log) cannot be edited once it is committed. That is because changes to revision properties (of which svn:log is one) cause the property's previous value to be permanently discarded, and Subversion tries to prevent you from doing this accidentally. However, there are a couple of ways to get Subversion to change a revision property.
The first way is for the repository administrator to enable revision property modifications. This is done by creating a hook called "pre-revprop-change" (see this section in the Subversion book for more details about how to do this). The "pre-revprop-change" hook has access to the old log message before it is changed, so it can preserve it in some way (for example, by sending an email). Once revision property modifications are enabled, you can change a revision's log message by passing the --revprop switch to svn propedit or svn propset, like either one of these:
$svn propedit -r N --revprop svn:log URL $svn propset -r N --revprop svn:log "new log message" URLwhere N is the revision number whose log message you wish to change, and URL is the location of the repository. If you run this command from within a working copy, you can leave off the URL.
The second way of changing a log message is to use svnadmin setlog. This must be done by referring to the repository's location on the filesystem. You cannot modify a remote repository using this command.
$ svnadmin setlog REPOS_PATH -r N FILEwhere REPOS_PATH is the repository location, N is the revision number whose log message you wish to change, and FILE is a file containing the new log message. If the "pre-revprop-change" hook is not in place (or you want to bypass the hook script for some reason), you can also use the --bypass-hooks option. However, if you decide to use this option, be very careful. You may be bypassing such things as email notifications of the change, or backup systems that keep track of revision properties.
When you run this command,
svn propedit svn:log --revprop -r NNN
and just in case you see this message:
DAV request failed; it's possible that the repository's pre-revprop-change hook either failed or is non-existent
Its because Subversion doesn’t allow you to modify log messages because they are unversioned and will be lost permanently.
Go to the hooks directory on your Subversion server (replace ~/svn/reponame with the directory of your repository)
cd ~/svn/reponame/hooks
Remove the extension
mv pre-revprop-change.tmpl pre-revprop-change
Make it executable (cannot do chmod +x!)
chmod 755 pre-revprop-change
The template files in the hooks directory cannot be used as they are Unix-specific. You need to copy a Windows batch file pre-revprop-change.bat to the hooks directory, e.g. the one provided here.
I was recently tasked with this as well.
We wanted to allow our programmers to modify only their own commit messages, and restrict how far back they are allowed to do so. We decided they would be allowed to modify any log messages committed that day, to fix typo's etc.
After looking at a couple other examples online I hacked this together, we are in a windows environment, so this is our contents of pre-revprop-change.bat:
@ECHO OFF
set repos=%1
set rev=%2
set user=%3
set propname=%4
set action=%5
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: Only allow changes to svn:log. The author, date and other revision
:: properties cannot be changed
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
if /I not '%propname%'=='svn:log' goto ERROR_PROPNAME
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: Only allow modifications to svn:log (no addition/overwrite or deletion)
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
if /I not '%action%'=='M' goto ERROR_ACTION
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: Only allow user to modify their own log messages
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
set AUTHOR=
for /f "delims=" %%a in ('svnlook author -r %REV% %REPOS%') do @set AUTHOR=%%a
if /I not '%AUTHOR%'=='%user%' goto ERROR_WRONGUSER
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: Only allow user to modify log messages from today, old messages locked down
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
set DATESTAMP=
for /f "delims=" %%a in ('svnlook date -r %REV% %REPOS%') do @set DATESTAMP=%%a
for /F "tokens=1-2 delims= " %%a in ("%DATESTAMP%") do (
set DATESTAMPDATE=%%a
set DATESTAMPTIME=%%b )
:: Expects DATESTAMPDATE in the format: 2012-02-24
for /F "tokens=1-3 delims=-" %%a in ("%DATESTAMPDATE%") do (
set DATESTAMPYEAR=%%a
set DATESTAMPMONTH=%%b
set DATESTAMPDAY=%%c )
:: Expects date in the format: Thu 08/01/2013
for /F "tokens=1-4 delims=/ " %%a in ("%date%") do (
set YEAR=%%d
set MONTH=%%b
set DAY=%%c )
if /I not '%DATESTAMPYEAR%'=='%YEAR%' goto ERROR_MSGTOOOLD
if /I not '%DATESTAMPMONTH%'=='%MONTH%' goto ERROR_MSGTOOOLD
if /I not '%DATESTAMPDAY%'=='%DAY%' goto ERROR_MSGTOOOLD
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: Make sure that the new svn:log message contains some text.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
set bIsEmpty=true
for /f "tokens=*" %%g in ('find /V ""') do (
set bIsEmpty=false
)
if '%bIsEmpty%'=='true' goto ERROR_EMPTY
goto :eof
:ERROR_EMPTY
echo Empty svn:log properties are not allowed. >&2
goto ERROR_EXIT
:ERROR_PROPNAME
echo Only changes to svn:log revision properties are allowed. >&2
goto ERROR_EXIT
:ERROR_ACTION
echo Only modifications to svn:log revision properties are allowed. >&2
goto ERROR_EXIT
:ERROR_WRONGUSER
echo You are not allowed to modify other user's log messages. >&2
goto ERROR_EXIT
:ERROR_MSGTOOOLD
echo You are not allowed to modify log messages older than today. >&2
goto ERROR_EXIT
:ERROR_EXIT
exit /b 1
Edit: Original idea for this came from this thread:
If your repository enables setting revision properties via the pre-revprop-change hook you can change log messages much easier.
svn propedit --revprop -r 1234 svn:log url://to/repository
Or in TortoiseSVN, AnkhSVN and probably many other subversion clients by right clicking on a log entry and then 'change log message'.
The Subversion FAQ covers this, but uses a bunch of confusing undefined terms like REPOS_PATH without giving any actual examples.
It might take a few tries to get it to work, so save your updated commit message in a file. Unlike with svn-commit.tmp files, Subversion won’t preserve your typing if there’s a problem.
In your working directory, run
svn propedit -r N --revprop svn:log
to edit the commit message. If that works, great! But it probably won’t, because the svn:log revision property is unversioned and Subversion by default will stop you from overwriting it, either with the hook script pre-revprop-change, or an error message that you don’t have such a hook.
To change the hooks, you need access to the filesystem on which the repository is hosted. svn info will tell you the Repository Root. Suppose it’s ~/svnrepo.
cd to ~/svnrepo/hookspre-revprop-change or
pre-revprop-change.bat script? If so, temporarily comment out the
part of it that aborts if you try to change svn:log.Otherwise, on
Windows, create a blank file called pre-revprop-change.bat. Here’s one way to do that:
copy con pre-revprop-change.bat
^Z
Otherwise, on Unix, run
echo '#!/bin/sh' > pre-revprop-change
chmod +x pre-revprop-change
In the working copy, run svn propedit -r N --revprop svn:log again
~/svnrepo/hooks/svn-revprop-change(.bat)I found a nice implementation of the server side pre-rev-prop-change hook at the svnforum: https://www.svnforum.org/forum/opensource-subversion-forums/scripts-contributions/8571-pre-revprop-change-shell-script-allows-commiters-to-change-own-log-within-x-hours
It implements
Grab it from there and edit at will. I'd rather not copy it here since I am not the original author and there is no copyright notice that would allow me to do it.
pre-revprop-changescript that allows the committing user to modify their log for up to 3 hours after the commit. This is an excellent compromise between flexibility / accurate logs, and maintaining the fidelity of the repository: wandisco.com/svnforum/threads/… – jwasvn propset dummyproperty 1 yourfile; svn commit yourfile -m yourmessage– mulllhausen