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| Email from Jamie Rollins about populating an SVN archive, while preserving file time stamps: | SVN! aka, Subversion! |
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| {{{ ################################################## Recipe to populate empty SVN repository with files, preserving ctime stamps: |
The SVN repository is set up in /cvs/cds/caltech/svn. '''Do not''' try to modify it or put anything on the directory. It is the job of svn command. |
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| 1. create an empty repository: | An apache web server dedicated to handle svn queries is running on nodus. |
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| /path/to/repo $ svnadmin create foo | For more information, please refer to the following web page. http://svnbook.red-bean.com/ |
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| 2. add an "unrestricted" pre-revprop-change script to the repository hooks directory [0]: |
== Using SVN in the control room == You can access the svn repository from the control room computers by something like {{{svn co file:///cvs/cds/caltech/svn/trunk/}}}. However, it is strongly discouraged to do so unless you are absolutely sure about what you are doing. Use the method below even from the control room computers. |
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| /path/to/repo $ cat > foo/hooks/pre-revprop-change #!/bin/sh REPOS="$1" REV="$2" USER="$3" PROPNAME="$4" ACTION="$5" /path/to/repo $ chmod 755 foo/hooks/pre-revprop-change |
== Getting files from off-site == There are two methods. Use the first method whenever possible. |
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| This allows the script to change the "Last Changed" times of the files to match the ctimes. |
Checking out trunk/chans directory |
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| 3. check out a working copy of the repository: | {{{ svn co --username svn40m https://nodus.ligo.caltech.edu:30889/svn/trunk/chans}}} |
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| /path/to/wc $ svn checkout file:///path/to/repo/foo | The password is written in the standard place. |
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| 4. add the files to the working copy, preserving their ctime stamps: | Alternative way: |
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| /path/to/wc $ cd foo /path/to/wc/foo $ cp -a /path/to/oldfiles/ . |
{{{svn co svn+ssh://controls@nodus.ligo.caltech.edu/cvs/cds/caltech/svn/trunk/chans}}} |
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| 5. run the included script [1] in the working copy root: | == A sample session == '''Task''': Making your own directory under trunk/docs/ and put a draft of your potentially Nobel prize winning paper. |
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| /path/to/wc/foo $ svn_ctime_checkin | (1) Make your own directory in the repository. |
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| This will add all the files in the working copy to the repository, and change the SVN "Last Changed" timestamp for every file and directory to be that of the filesystem ctimes. |
{{{svn mkdir --username svn40m https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/mydir}}} |
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| 6. On every system where you want to checkout a working copy of the repository, uncomment or add the following line to the SVN client-side config file [2]: |
(2) Check out the directory you just created to your machine. |
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| ~ $ cat >> ~/.subversion/config use-commit-times = yes ~ $ |
{{{svn co --username svn40m https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/mydir}}} |
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| This will tell the SVN client to set file ctimes to be the "Last Changed" time on checkout/update/etc. |
(3) Move to the checked out directory. |
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| 7. Finally, checkout your working copy of the repository, and note that the original file ctimes are preserved. |
{{{cd mydir}}} |
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| A. You might now want to go back and remove the unrestricted pre-revprop-change script, so that users can't change file properties in the future: |
(4) Put your draft into the directory. |
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| ~ $ rm /path/to/repo/foo/hooks/pre-revprop-change | {{{cp /somewhere/ProofOfEverything.tex . }}} |
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| Here is the test that I ran that demonstrates that it works: | (5) Put the file under the svn's control. |
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| servo:/tmp/cdtemp.sf7635 0$ ls svn_ctime_checkin servo:/tmp/cdtemp.sf7635 0$ svnadmin create foo servo:/tmp/cdtemp.sf7635 0$ cat > foo/hooks/pre-revprop-change #!/bin/sh REPOS="$1" REV="$2" USER="$3" PROPNAME="$4" ACTION="$5" servo:/tmp/cdtemp.sf7635 0$ chmod 755 foo/hooks/pre-revprop-change servo:/tmp/cdtemp.sf7635 0$ svn checkout file:///tmp/cdtemp.sf7635/foo bar Checked out revision 0. servo:/tmp/cdtemp.sf7635 0$ cd bar servo:/tmp/cdtemp.sf7635/bar 0$ cp -a ~/matlab/bin/chaos.m . servo:/tmp/cdtemp.sf7635/bar 0$ ls -l total 4 -rw-r--r-- 1 jrollins jrollins 248 2005-09-10 16:58 chaos.m servo:/tmp/cdtemp.sf7635 0$ date +"%Y-%m-%d" 2008-02-12 servo:/tmp/cdtemp.sf7635/bar 0$ ../svn_ctime_checkin svn propset svn:date 2005-09-10T20:58:09.000000Z --revprop -r HEAD property 'svn:date' set on repository revision 0 A chaos.m Adding chaos.m Transmitting file data . Committed revision 1. property 'svn:date' set on repository revision 1 ready servo:/tmp/cdtemp.sf7635/bar 0$ ls -l total 4 -rw-r--r-- 1 jrollins jrollins 248 2005-09-10 16:58 chaos.m servo:/tmp/cdtemp.sf7635/bar 0$ cd .. servo:/tmp/cdtemp.sf7635 0$ grep use-commit-times ~/.subversion/config ### Set use-commit-times to make checkout/update/switch/revert use-commit-times = yes servo:/tmp/cdtemp.sf7635 0$ svn checkout file:///tmp/cdtemp.sf7635/foo qux A qux/chaos.m Checked out revision 1. servo:/tmp/cdtemp.sf7635 0$ ls -l qux/ total 4 -rw-r--r-- 1 jrollins jrollins 248 2005-09-10 16:58 chaos.m servo:/tmp/cdtemp.sf7635 0$ |
{{{svn add ProofOfEverything.tex}}} |
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| [0] http://svnbook.red-bean.com/en/1.4/svn.ref.reposhooks.pre-revprop-change.html [1] http://svn.haxx.se/users/archive-2006-10/1345.shtml [2] http://svnbook.red-bean.com/en/1.4/svn.advanced.confarea.html#svn.advanced.confarea.opts.config |
(6) Check it in to the svn repository. |
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| }}} | {{{svn ci -m "The first draft"}}} You have to put your comment after {{{-m}}} (7) Update your working copy. {{{svn up}}} (8) Delete the file from the repository because you realized your paper is totally a bullshit. {{{svn delete ProofOfEverything.tex}}} {{{svn ci -m "Oops, I was wrong"}}} However, your crappy paper can still be retrieved from the repository by requesting an old version, because all the history is recorded in the svn world. |
SVN! aka, Subversion!
The SVN repository is set up in /cvs/cds/caltech/svn. Do not try to modify it or put anything on the directory. It is the job of svn command.
An apache web server dedicated to handle svn queries is running on nodus.
For more information, please refer to the following web page. http://svnbook.red-bean.com/
Using SVN in the control room
You can access the svn repository from the control room computers by something like svn co file:///cvs/cds/caltech/svn/trunk/. However, it is strongly discouraged to do so unless you are absolutely sure about what you are doing. Use the method below even from the control room computers.
Getting files from off-site
There are two methods. Use the first method whenever possible.
Checking out trunk/chans directory
svn co --username svn40m https://nodus.ligo.caltech.edu:30889/svn/trunk/chans
The password is written in the standard place.
Alternative way:
svn co svn+ssh://controls@nodus.ligo.caltech.edu/cvs/cds/caltech/svn/trunk/chans
A sample session
Task: Making your own directory under trunk/docs/ and put a draft of your potentially Nobel prize winning paper.
(1) Make your own directory in the repository.
svn mkdir --username svn40m https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/mydir
(2) Check out the directory you just created to your machine.
svn co --username svn40m https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/mydir
(3) Move to the checked out directory.
cd mydir
(4) Put your draft into the directory.
cp /somewhere/ProofOfEverything.tex .
(5) Put the file under the svn's control.
svn add ProofOfEverything.tex
(6) Check it in to the svn repository.
svn ci -m "The first draft"
You have to put your comment after -m
(7) Update your working copy.
svn up
(8) Delete the file from the repository because you realized your paper is totally a bullshit.
svn delete ProofOfEverything.tex
svn ci -m "Oops, I was wrong"
However, your crappy paper can still be retrieved from the repository by requesting an old version, because all the history is recorded in the svn world.