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Posted to users@subversion.apache.org by Matt England <me...@mengland.net> on 2005/11/29 03:40:15 UTC
How to convert a regular file to a sym link?
I have files under svn control that we converted from a regular file to a soft link (as per ldconfig: http://www.die.net/doc/linux/man/man8/ldconfig.8.html ).
I want to force this change into subversion's control so that said file no longer comes up in a 'svn status' list.
Any suggestions?
The only thing I can think of right now is to 'svn revert', 'svn del', then 'svn add' the file after running my ldconfig (that creates the sym link) again. This seems rather cumbersome to do for every file.
Thanks for any help,
-Matt
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Re: How to convert a regular file to a sym link?
Posted by Ryan Schmidt <su...@ryandesign.com>.
On Dec 2, 2005, at 08:29, Kent Borg wrote:
> Judging from this thread Subversion is happy with symlinks, but does
> anyone here have experience with getting svn_load_dirs to work with
> symlinks?
>
> I am trying to get an existing project into Subversion, and at the
> moment I am stalled with svn_load_dirs refusing to deal with symlinks.
> I fear Subversion isn't up to the job. Any help would be appreciated.
You must patch svn_load_dirs before it will support symlinks:
http://svn.haxx.se/dev/archive-2005-02/0611.shtml
See this bug report:
http://subversion.tigris.org/issues/show_bug.cgi?id=2241
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Re: How to convert a regular file to a sym link?
Posted by Kent Borg <ke...@borg.org>.
Judging from this thread Subversion is happy with symlinks, but does
anyone here have experience with getting svn_load_dirs to work with
symlinks?
I am trying to get an existing project into Subversion, and at the
moment I am stalled with svn_load_dirs refusing to deal with symlinks.
I fear Subversion isn't up to the job. Any help would be appreciated.
-kb
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Re: How to convert a regular file to a sym link?
Posted by Saulius Grazulis <gr...@ibt.lt>.
On Thursday 01 December 2005 19:21, Noel Yap wrote:
> > Any further thoughts?
>
> Like I said before, don't keep symlinks under version control.
There is nothing bad in keeping symlinks under Subversion.
I use build systems that are extensively based on symlinks, and Subversion
handles my trees just fine. Actually, Subversion is the only VC system,
AFAIK, that handles symlinks nicely, and this is the main reason why I use
it ;)
Situations when links get converted to files and wice versa are, at least in
my practice, rare, and though unpleasant can by handled by shell automation.
> Rather, version control a script that creates the symlinks.
Brrrr... This sounds like too much complication for me.
I use links exactly for the reason that they permit to express relations
between file easily; the necessity to handles those relations with scripts is
too cumbersome, for my taste.
Although, such system would be more flexible and would permit to use VCSes or
filesystems that do not support symlinks -- an advantage in some cases.
> You'll
> never lose history if you only version control files.
AFAIU, subversion keeps history of symlinks as well, doesn't it?
--
Dr. Saulius Grazulis
Institute of Biotechnology
Graiciuno 8
LT-02241 Vilnius
Lietuva (Lithuania)
fax: (+370-5)-2602116
tel.: office: (+370-5)-2602556
mobile: (+370-684)-49802, (+370-614)-36366
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Re: How to convert a regular file to a sym link?
Posted by Saulius Grazulis <gr...@ibt.lt>.
On Thursday 01 December 2005 18:55, Matt England wrote:
> >I would try something like this (careful, commands untested! Dont run them
> > as root, check before!):
> >
> >*nix> for i in `svn st | awk '/^~/{print $2}'`; do ( set -x; mv $i $i-old;
> > svn del $i; svn ci -m "Deleting $i" $i; mv $i-old $i; svn add $i; sv ci
> > "Committing new $i"; ) done
>
> Ok, so this looks like an automated means to do execute the manual process
> describe above, and that's a good thing.
Yep.
> However, I was hoping there was an alternative way to do this via
> subversion, at least on a per-file basis, other then the svn del-then-add
> process, chiefly because said process loses the file history properties (I
> think).
I am not aware the Subversion command that would do this.
> Any further thoughts?
Are situation when file<->symlink conversion happens often in your case? If
so, what about writing svn-file-to-symlink script that accepts filenames as
arguments and runs the above procedure? Could be a generally usefull tool...
Since this problem can be (relatively easyly) solved by external means, and
the problem is, generally, rare, it would probably be an overkill to include
this functionality into Subversion directly, what you think?
> In any case, thanks for the above automation code.
Don't mention :)
NB: I have spotted the bug there, the las command should read: "... sv ci
"Committing new $i" $i; ) done" (note the $i addition, so that only that one
file gets checked in, not the whole tree).
--
Dr. Saulius Grazulis
Institute of Biotechnology
Graiciuno 8
LT-02241 Vilnius
Lietuva (Lithuania)
fax: (+370-5)-2602116
tel.: office: (+370-5)-2602556
mobile: (+370-684)-49802, (+370-614)-36366
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Re: How to convert a regular file to a sym link?
Posted by Matt England <me...@mengland.net>.
At 12/1/2005 10:33 PM, Toby Johnson wrote:
>And by the way, when you place a symlink into Subversion, you won't be able to view the contents or history of what that symlink points to from within Subversion. So if the target file changes, you won't be able to "svn log" the symlink and see those changes, for example. Maybe knowing this will make preserving history seem less important.
I want the history of the file name that represents the sym link (including the history of when it was *not* a sym link), not the thing that the sym link points to.
Does this not work?
-Matt
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Re: How to convert a regular file to a sym link?
Posted by Toby Johnson <to...@etjohnson.us>.
Matt England wrote:
>At 12/1/2005 10:37 AM, Saulius Grazulis wrote:
>
>
>>*nix> for i in `svn st | awk '/^~/{print $2}'`; do ( set -x; mv $i $i-old; svn
>>del $i; svn ci -m "Deleting $i" $i; mv $i-old $i; svn add $i; sv ci
>>"Committing new $i"; ) done
>>
>>
>Ok, so this looks like an automated means to do execute the manual process describe above, and that's a good thing.
>
>However, I was hoping there was an alternative way to do this via subversion, at least on a per-file basis, other then the svn del-then-add process, chiefly because said process loses the file history properties (I think).
>
>
Subversion stores symlinks as a regular text file containing what the
link points to, along with a special property, I believe "svn:special"
or something of the sort. Instead of a script to delete/recreate the
files, you could use one to set all those special properties.
But no, I don't think there's a way for Subversion to just do that
automatically. And by the way, when you place a symlink into Subversion,
you won't be able to view the contents or history of what that symlink
points to from within Subversion. So if the target file changes, you
won't be able to "svn log" the symlink and see those changes, for
example. Maybe knowing this will make preserving history seem less
important.
Re: How to convert a regular file to a sym link?
Posted by Noel Yap <no...@gmail.com>.
On 12/1/05, Matt England <me...@mengland.net> wrote:
> However, I was hoping there was an alternative way to do this via subversion, at least on a per-file basis, other then the svn del-then-add process, chiefly because said process loses the file history properties (I think).
>
> Any further thoughts?
Like I said before, don't keep symlinks under version control.
Rather, version control a script that creates the symlinks. You'll
never lose history if you only version control files.
Noel
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Re: How to convert a regular file to a sym link?
Posted by Matt England <me...@mengland.net>.
Hi Saulis,
Thanks for your response. Comments below.
At 12/1/2005 10:37 AM, Saulius Grazulis wrote:
>On Thursday 01 December 2005 18:15, Matt England wrote:
>> Any more thoughts on this? Â I need to solve this problem pretty soon, would
>like to do this for all my files across the board in a more-elegant way then
>the following:
>> >The only thing I can think of right now is to 'svn revert', 'svn del',
>> > then 'svn add' the file after running my ldconfig (that creates the sym
>> > link) again. Â This seems rather cumbersome to do for every file.
>>
>
>I would try something like this (careful, commands untested! Dont run them as
>root, check before!):
>
>*nix> for i in `svn st | awk '/^~/{print $2}'`; do ( set -x; mv $i $i-old; svn
>del $i; svn ci -m "Deleting $i" $i; mv $i-old $i; svn add $i; sv ci
>"Committing new $i"; ) done
Ok, so this looks like an automated means to do execute the manual process describe above, and that's a good thing.
However, I was hoping there was an alternative way to do this via subversion, at least on a per-file basis, other then the svn del-then-add process, chiefly because said process loses the file history properties (I think).
Any further thoughts?
In any case, thanks for the above automation code.
-Matt
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Re: How to convert a regular file to a sym link?
Posted by Saulius Grazulis <gr...@akl.lt>.
On Thursday 01 December 2005 18:15, Matt England wrote:
> Any more thoughts on this? I need to solve this problem pretty soon, would
like to do this for all my files across the board in a more-elegant way then
the following:
> >The only thing I can think of right now is to 'svn revert', 'svn del',
> > then 'svn add' the file after running my ldconfig (that creates the sym
> > link) again. This seems rather cumbersome to do for every file.
>
> To be clear, all these files show up as:
>
> # svn status
> ~ mylib.so.1.0
> [...]
>
> Thanks for any help. More details below.
I would try something like this (careful, commands untested! Dont run them as
root, check before!):
*nix> for i in `svn st | awk '/^~/{print $2}'`; do ( set -x; mv $i $i-old; svn
del $i; svn ci -m "Deleting $i" $i; mv $i-old $i; svn add $i; sv ci
"Committing new $i"; ) done
To check that the commands really do what you want, put 'true' or 'echo' in
front of every 'svn' and 'mv' command in the above example and run the
resulting command; when you see that it is going to do what you want, remove
'echo/trure' and run once more.
Hope this helps.
--
Dr. Saulius Gražulis
Visuomeninė organizacija "Atviras Kodas Lietuvai"
P.Vileišio g. 18
LT-10306 Vilnius
Lietuva (Lithuania)
tel/fax: (+370-5)-210 40 05
mobilus: (+370-684)-49802, (+370-614)-36366
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Re: How to convert a regular file to a sym link?
Posted by Matt England <me...@mengland.net>.
Any more thoughts on this? I need to solve this problem pretty soon, would like to do this for all my files across the board in a more-elegant way then the following:
>The only thing I can think of right now is to 'svn revert', 'svn del', then 'svn add' the file after running my ldconfig (that creates the sym link) again. This seems rather cumbersome to do for every file.
To be clear, all these files show up as:
# svn status
~ mylib.so.1.0
[...]
Thanks for any help. More details below.
-Matt
At 11/28/2005 09:40 PM, Matt England wrote:
>I have files under svn control that we converted from a regular file to a soft link (as per ldconfig: http://www.die.net/doc/linux/man/man8/ldconfig.8.html ).
>
>I want to force this change into subversion's control so that said file no longer comes up in a 'svn status' list.
>
>Any suggestions?
>
>The only thing I can think of right now is to 'svn revert', 'svn del', then 'svn add' the file after running my ldconfig (that creates the sym link) again. This seems rather cumbersome to do for every file.
>
>Thanks for any help,
>-Matt
>
>
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