>I think the feature you're looking for is known as "client viewspecs",
If I have understood everything all rigth inside the mentioned thread(s),
the concept described there (client viewspecs) differes in one importend
thing from what I proposed:
'client viewspecs' will introduce a 'special view' into the repository, that
may or may not be enabled inside a checkout/working copy.
That's something know from ClearCase, where You may specify a different view
onto the same repository for every 'working copy' (which is called 'view' in
ClearCase)....
My poposal is more to extending the 'svn:external keyword' to handle sparse
directories (more precise: sparse including of externals).
This will:
- NOT create/enable different views into a repository (all checkouts of this
repository will be the same if no --depth is supplied when checking out)
- but provide a way of 'linking in' (parts of) a repository path into
another repository
It's just like the existing 'svn:externals' works rigth now. You may
add/include another repository (or only a subtree of it) into the working
copy of a repository. At the time now using 'svn:externals' we are only able
to include the complete (sub-)tree of the other repository into a working
copy into a 'special' directory of that working copy.
What I introduce was, that:
- we expand 'svn:externals' to having an optional '--depth' parameter that
works like this parameter for svn checkout, but only for this 'linked in'
part.
(That's the basic)
Even it's not explicid stated, You may use the 'svn:externals' to 'include'
a subtree of the same repository into a directory of Your working copy. This
will produce a working copy where some files are checked out into two or
more directories of Your working copy.
OK under Linux I would not do it this way, I may use a 'directory link' to
achive (almost) the same (doing it this way there are no real copies of the
files, but all programms behave the same, because the links are followed
naturaly by almost all programms).
Under Windows this kind of 'linking in' isn't that common and a lot of tools
will have problem to correctly following those links.
So I (unfortunally) need to copy these files into different dirs.
This is no real problem, because if You commit changes, then checkout again,
changes done on one of this files are correctly handled (as long as You
don't change both copies before trying to commit).
Back to my example:
I use a repository to hold a complete project.
The 'developer' part is only for developers.
When they release a new version, parts of this this must be 'transfered' to:
- the customer CD (This CD hold the binaries & data files they shall use)
- the maintenance people (they must get all files that the customers get,
plus some extra binaries and some of their data files must be 'expanded')
One Way of doing this is:
Wenever a newer releas is made the files are copied into the designated
folders.
This is bad, because one file must be copied to mutiple folders and there is
always a change that someone fogot one copy.
Another way (Liniux style) would be:
There is one tree for the (all) released files
The other folders (CD,maintenance..) have only soft links to this files.
When buring the CD You must enshure that the file the link refers to is
placed onto the CD, not the link itsef.
That's the part that doesn't work under Windows, because all CD buring prg's
I know will simply place the link onto the CD :-((
The way I try to use:
Instead of using soft links, I use an svn:external that points to the
corosponding subtree of the repository.
So to burn a CD with the correct content, I use svn export into a temporary
dir, then burn all files inside this dir onto the CD.
I hope the difference is now clear.
By simply adding the --depth parameter to svn:external we got this aditional
feature.
This is the current syntax for svn:externals (unfortunaly there is no EBNF
definition in the book, I try to create it rigth here):
<dir> [-r<revision>] <repository-path>
Where
dir: a subdir of the current dir of the WC where the external repository is
checkout to (include into the WC)
revision: the (optional) revision that should be checked out
repository-path: the path to the (external) repository to checkout (include
into the WC)
Here is poposed extention:
<dir> [-r<revision>] [--depth <requested depth>] <repository-path>
requested depth: following the same rules as the --depth parameter for other
svn commands.
So
<dir> --depth infinity <repository-path>
will behave the same as without the depth parameter
Another (but not so easy to implement) feature was:
allowing svn:external to include the contents of another repository path not
only into a subdir of the dir it is defined in.
Something like:
{ <dir> | .} [-r<revision>] [--depth <requested depth>] <repository-path>
So using:
. --depth files <repository-path>
will include all files inside the given repository-path into the WC dirs
where this external is defined.
This kind is hard to implement, because a commit must know if a file inside
the dir is part of the current repository or of the 'included' one.
So there are lot of situations where this isn't easy to detect.
A third additional feature was to allow some 'inclusion'/'exclusion' pattern
<dir> --depth infinity [-I <pattern>] [-E <pattern>] <repository-path>
pattern: a file pattern that must be matched to inlcude/exclude any file
that matches it
This is a bit easier to implement then the 2. feature, but still may result
in some problems at commit.
So for the first step, I thing the first extension (additional --depth
parameter to externals) should be sufficient.
... and very easy to implement
BTW.: at the moment I am not shure how an external works when used together
with a --depth paramter at checkout !?!
- Will an external be checked out whith the same depth value as it's parent
?
- Is an externals always processed or is it processed only if the depth is
infinity or immediates or even on files, but not on empthy ?
#####################################
"Karl Fogel" <kfogel_at_red-bean.com> schrieb im Newsbeitrag
news:87abgoxw0j.fsf_at_red-bean.com...
I think the feature you're looking for is known as "client viewspecs",
and was proposed by David James in this message:
http://svn.haxx.se/dev/archive-2006-07/0624.shtml
We haven't implemented them yet; see the rest of the thread for
discussion, including http://svn.haxx.se/dev/archive-2006-08/0004.shtml.
Best,
-Karl
"G.Neiß" <g.neiss_at_plarad.de> writes:
> I like to include only the top level directory of another repository path
> into a working copy.
> I have read about the new (V 1.5.) feature of sparse directories and
> belive
> that what I need.
> I search for this here and inside the doc, but it seams that can't be
> done,
> yet !?!
>
> Just to explain what I try to do:
>
> There is a repository of a current project:
>
> trunk
> development
> ...
> customers
> CD_Content
> maintenance
> parameter
> special parameters
>
> Inside of 'CD_Content' for customers there should be included the
> 'parameter' dir of maintenance, but NOT 'special parameters'.
> This may be done by an checkout command with --depth file for the dir '
> maintenance/parameter', but how to setup an svn:externals for
> 'customers/CD_Content' that will check out only parameter into CD_Content
> ?
>
> If this isn't possible yet, I higly reqeuset such a feature.
> The excample given above is just a simple one.
> I try to avoid having 'physical copies' of such files (because there is
> always a change that something was forgotten when update is needed).
>
> Another thing is the ability of 'inlcuding' only 'some' files into another
> dir.
> In the above example it may be that almost all files from 'paramter'
> should
> be included, but not all.
> This might be done by an svn:externals, that refers to the actual
> directory
> (instead of a subdir) and a special file in another path.
>
> I hope it's clear, what I try to do.
>
>
>
>
>
>
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Received on 2008-07-15 12:02:17 CEST