That should trigger a regeneration of these swig sources if
any of the header files change.
This is done via a small macro that can be reused for other wrappers as well.
Note
cmake 3.15 introduces a 'FILTER' generator expression
that might allow us to do something like the following:
$<FILTER:$<TARGET_PROPERTY:baselib,SOURCES>,INCLUDE,"*.h[pp]?$">
I toyed briefly with that idea but it currently has two issues:
1. 3.15 is newer than our current minimum cmake requirement, so we can't
depend in that feature yet.
2. the sources are relative to *their* source directory, which
is different from the one in which the wrappers are generated
So they should still be properly transformed into absolute paths
Until now it was only done when building from git, but there's no
real reason not to do it as a normal build step in all cases.
It may have been unreliable in the past. There's no evidence
it still is.
This switches swig to use python 3 specific features when generating the
bindings, switches the build over to python 3 and makes the neccesary
python 2 to 3 conversions in the bindings and tests.
The swig wrappers don't really depend on git (but rather on swig) and there can be
situations the builder wants to generate the wrappers also from a tar ball.
When building from git it will add targets to generate the swig files.
When building from tarball it will just point at the generated source
files from the tarball.
When building from git it will add targets to generate the swig files.
When building from tarball it will just point at the generated source
files from the tarball.
- the two dist_add_... macros now both take a list of file names
as argument so more files can be added at once to the dist tarball.
- dist_add_generated now creates the right target by itself. There's
no need to pass one any more
- make the swig generated *.py module files explicit output files
- change a couple of custom_targets into custom_commands. The only
reason they were defined as targets was to ensure they got built
before the dist tarball. This is now properly handled by the
dist_add_... macros.
- correctly handle dependency on swig-runtime.h (using OBJECT_DEPENDS
was not the way to do it according to that property's help page)
cmake with unix makefiles fails to resolve dist dependencies
added from COPY_FROM_BUILD if these dependencies aren't built yet.
This commit replaces the COPY_FROM_BUILD based logic with two new functions
'dist_add_configured' and 'dist_add_generated' to indicate which files should
be included in the dist tarball. The latter also adds a target level dependency
to the dist tarball custom command. Hence the former should
be used for files that get generated during a cmake run while the latter
should be used for files generated as the result of a 'make/ninja-build' run
(like files for which an add_custom_command rule exists).
Note: this commit also temporarily disables the dist target when building
from a tarball (and hence it won't be tested in distcheck either). This
will be handled in a future commit.
Where possible in the Python SWIG code use the builtin SWIG conversion
code over custom code. This ensures appropriate overflow/type checking.
With this I have enabled GncNumeric from longs and tested for correct
overflow handling.
Note: This could be extended to GUILE but I am not familiar enought to
safely enable this.
It is split into
- /libgnucash (for the non-gui bits)
- /gnucash (for the gui)
- /common (misc source files used by both)
- /bindings (currently only holds python bindings)
This is the first step in restructuring the code. It will need much
more fine tuning later on.
