Now only the dependencies for the file where the dependencies actually may
have changed are rescanned, before that this was done for all source files
even if only one source file had changed.
This reduces e.g. on my machine the time for scanning the dependencies
of kdelibs/khtml/ when only one file (khtml_global.cpp) has changed from
around 7.5 seconds to 1.2 seconds.
The tests succeed, it does what I expected it to do on kdelibs, and Brad
also reviewed the patch, so I think it should be ok.
Alex
When reading the depend.internal file, check only once for every depender
whether it exists, instead of repeatedly in a loop for each dependee. Within
that function it can only change of the depender is removed. This is taken
care of.
This reduces the number of access() calls in kdelibs/khtml from 180000 to
90000 (i.e. 50%), and reduces the time for that (without the actual
scanning) from 0.3 s to 0.21 s on my system.
Alex
- See issue #5809
- Keep information about all sources in the target until deps are written
- Create a fortran.internal file after scanning that lists modules provided
- Load fortran.internal files from linked targets to find modules
- Search the include path for external modules
- Create file-level deps on in-project module timestamps or external mods
Bill Hoffman
Alexander Neundorf
Brad King
Ken Martin
Andy Cedilnik