It may be that it's time to consider an interpose library or truss and monitor the open/create/delete/rename operations undertaken by the build command, and log those. This would also work nicely for java and such things as unit tests and scripts which can be tricky to get correct dependencies for in an automated way.
That's the way some other make tools work and claim (fairly) that they get 100% accurate dependencies. I still like the scanning idea of scons, but that's mainly because you can deduce which headers you actually need to build during the build process. ----- Original Message ----- From: scons-dev@scons.org To: scons-dev@scons.org At: Nov 16 2012 14:18:23 On Wed, 2012-11-14 at 18:10 +0100, Dirk Bächle wrote: > Hi Russel, > > and what exactly would be a problem for SCons when trying to build > Ceylon projects? Can we extract requirements for SCons from it? Ceylon take various source files in and generates a tree of files where the names of the resultant files bear no obvious relationship to the source. Moreover this is a many-to-many mapping. Effectively the compiler creates an internal indexed database rather than per file/class compilation products. On the one hand this is so far from the C/C++/Fortran/D model that there is no hope of compromise. On the other hand it maybe that the Ceylon compilation database structure is actually very simple and can be dealt with by having quasi-hardwired dependencies. Database file names are module structured so it may be that the database structure is deducible using a SCons scanner over the incoming source. I would be more motivated to do something about this if there were an Emacs mode for Ceylon. Currently they are only interested in using Eclipse. -- Russel. ============================================================================= Dr Russel Winder t: +44 20 7585 2200 voip: sip:russel.win...@ekiga.net 41 Buckmaster Road m: +44 7770 465 077 xmpp: rus...@winder.org.uk London SW11 1EN, UK w: www.russel.org.uk skype: russel_winder
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