Re: Question wrt dual-PEAR

Ian Eure wrote: > On Monday 31 January 2005 02:34 pm, Pierre Habouzit wrote: >> Hi, I'm interested into PEAR packaging for debian (I'm currently near >> to be Debian Developper [1]). >> >> I'm really interested into web apps packaging in debian, and mostly in >> php which is the language I use the most for web apps. The thing is >> that (IMHO) php, especially PEAR isn't in a very good shape in debian. >> >> Our major problem is that We (I say *we* because I've talk a bit with >> PHP debian maintainer that are /de/ /facto/ PEAR maintainer atm) do not >> have found any good way to maintain two branch of PEAR on the same box. >> I'll explain : >> >> * we have PEAR libraries that are in real debian packages that live >> in /usr/share/php/ >> >> * OTOH we would like to have a way to allow a user to install with the >> 'pear' command his packages into /usr/local/share/php, without >> having to duplicate the whole /usr/share/php tree. >> > I'm not sure about the PEAR installer, but general policy for including > files in PEAR packages is to use the path from the php_dir down. > > e.g. > require_once 'DB/mysql.php' > > so once stuff gets installed, it should be fine, as long as the > include_path has both install directories. sure, for that part, I was aware of the simple solution ;) > The installer is another issue entirely, and I'm not familiar enough with > it to say how it works or how you can have it's dependencies fulfilled. > > I suspect that what would need to happen to make this work is that it > would need to be modified to support multiple php_dirs. e.g. > > php_dir = /usr/share/php:/usr/local/share/php > > with a registry in each, the combination of which is used to fulfill > dependencies. This will probably cause problems if, for example, you have > DB version x.0.y in /usr/share/php, and you upgrade to x.1.y > in /usr/local/share/php. why that ? I don't see the problem here since we have a really easy solution : only debian package have any rights to put sth in /usr/share/php so debian package /should/ have a way to enforce pear to ignore /usr/local/share/php directory. whereas plain default pear command install things in /usr/local/share/php but taking /usr/share/php into consideration. moreover, since /usr/share/php is installed from debian package, versionned dependencies are already implied by the apt system, and in fact, even if we have PEAR::foo in /usr/local/share/php and not in /usr/share/php, debian will require PEAR::foo to be installed (if a PEAR::bar needs it) even if the user already has it in the /local/ dir. AFAIK it's the way perl is handled in debian (and in many linux distros) and it works quite fine ! -- ·O· Pierre Habouzit ··O OOO http://www.madism.org