Hi All, Thank you all for the response.
Regards, An On Tue, Feb 23, 2010 at 11:23 AM, Ryan Schmidt < subversion-20...@ryandesign.com> wrote: > > On Feb 22, 2010, at 22:48, An Me wrote: > > > On Mon, Feb 22, 2010 at 9:54 PM, Andrey Repin wrote: > > > >> You need to change only one file. You co empty top-level directory, then > >> update only that file. And edit and commit it. > > > > But usually if we are working on java project,to edit some files mean we > need to co the whole project and not that single file alone for editing as > we need to check whether the whole project is working fine by finally > compiling and running the same.So where exactly is the shallow co useful? > > Maybe it is not useful for you. It might not be applicable to all > workflows. It can be very useful for example if you have a web site in > Subversion and need to only fix a typo on a single page. Or if you are an > artist working on a game and only need to check out the graphics you are > currently editing, and don't need all the other graphics or sounds or game > code. > > > Personally, I use shallow checkouts for some types of changes in MacPorts. > MacPorts is a package management system for Mac OS X written in Tcl. Each > port is represented by a Tcl file that defines certain variables like the > port name, version, category, and so on. Each port file lives in a directory > with the name of the port, which lives in a directory with the name of the > category. For example our php5 port lives in > trunk/dports/lang/php5/Portfile. You can browse the tree here: > > http://trac.macports.org/browser/trunk/dports > > Now suppose I want to change a port's category, as I did for php5 in r49690 > when I moved it to the lang category from the www category because it is in > fact a language and not limited to web programming: > > http://trac.macports.org/changeset/49690 > > How could I do this? I could do it with URLs: > > svn mv \ > http://svn.macosforge.org/repository/macports/trunk/dports/www/php5 \ > http://svn.macosforge.org/repository/macports/trunk/dports/lang \ > -m "move php5 from www to lang category" > > But the category is also listed in the port file itself. If I just move the > port's directory to the new category's directory without also editing the > port file, the port file will still say the port is in the www category > while the port directory is in the lang category directory. That won't do. I > need to edit the port file at the same time as I move its directory. I could > check out the entire dports directory, but if I don't plan to use that > directory for other purposes later, it would be wasteful to check out all > 6000+ ports just for this small rearrangement. It's more efficient to check > out sparsely. I might use: > > svn co -N http://svn.macosforge.org/repository/macports/trunk/dports > cd dports > svn up -N www lang > svn up www/php5 > svn mv www/php5 lang > # now edit the categories definition in lang/php5/Portfile > svn ci -m "move php5 from www to lang category" > > Yes, the syntax I show above is the old pre-Subversion 1.5 non-recursive > checkout syntax instead of the new Subversion 1.5+ sparse checkout syntax, > but only because I have not yet bothered to learn the latter. > > >
