This has a couple of advantages over rolling it by hand:
1. it correctly handles include_directories objects, which is always
handy
2. it correctly generates a depfile for you, which makes it more
reliable
3. it requires less typing
This allows representing functions like assert(), which take optional
positional arguments, which are not variadic. More importnatly you can
represent a function like (* means optional, but possitional):
```txt
func(str, *int, *str)
```
typed_pos_args will check that all of your types are correct, and if not
provide None, which allow simplifying a number of implementation details
We don't do a very good job of type checking in the interpreter,
sometimes we leave it to the mid layers of backends to do that (layering
violations) and sometimes we just don't check them at all. When we do
check them it's a ton of boilerplate and complicates the code. This
should help quite a bit.
Our approach to unity builds with vala is broken, you cannot unify the
generated C files, as they contain duplicate symbols. We would need to
instead combine the files while they are still in their vala form, then
convert that to C and compile the unified C file.
This does not fix the linked issue, as this removed the ability to do
vala unity builds, but it does allow running vala with `--unity=on`.
Related: #5280
Replacements are already done by eval_custom_target_command() and must
be done BEFORE calling as_meson_exe_cmdline() anyway. replace_paths() is
still used by generators.
Make eval_custom_target_command() more readable by handling error in the
final else case instead of in the middle of elif.
Re-implement it in backend using the same code path as for
custom_target(). This for example handle setting PATH on Windows when
command is an executable.
Various GNOME projects have scripts that does similar task, better do it
directly in meson. This ensures it's done correctly regarding usage of
subprojects and pkg-config. See for example this gtk bug:
https://gitlab.gnome.org/GNOME/gtk/-/issues/3626.
Fixes: #8268
Following #7890, this patch introduces the ability to read the contents
of a file to the fs module.
This patch introduces the ability to read files at configure time, but
has some restrictions:
- binary files are not supported (I don't think this will prove a
problem, and if people are wanting to do something with binary
files, they should probably be shelling out to their own script).
- Only files outside the build directory allowed. This limitation
should prevent build loops.
Given that reading an arbitrary file at configure time can affect the
configuration in almost arbitrary ways, meson should force a reconfigure
when the given file changes. This is non-configurable, but this can
easily be changed with a future keyword argument.
Both Clang and GCC support using multiple threads for preforming link
time optimizaions, and they can now be configured using the
`-Db_lto_threads` option.
Fixes#7820
This new keyword argument makes it possible to run specific
test setups only on a subset of the tests. For example, to
mark some tests as slow and avoid running them by default:
add_test_setup('quick', exclude_suites: ['slow'], is_default: true)
add_test_setup('slow')
It will then be possible to run the slow tests with either
`meson test --setup slow` or `meson test --suite slow`.
This will be needed to exclude testsuites from test setups (which
are stored in the build data). While at it, since a chdir is
needed simplify a bit the loading of tests and benchmarks.
It is common, at least in GNOME projects, to have scripts that must be
run only in the final destination, to update system icon cache, etc.
Skipping them from Meson ensures we can properly log that they have not
been run instead of relying on such scripts to to it (they don't
always).
Add function to Build class to get targets of type BuildTarget
Update xcode backend to call get_build_targets when iterating over targets.
This resolves crash in xcode backend when using custom targets:
AttributeError: ‘CustomTarget’ object has no attribute ‘objects’
On Windows this would fail because of missing DLL:
```
mylib = library(...)
exe = executable(..., link_with: mylib)
meson.add_install_script(exe)
```
The reason is on Windows we cannot rely on rpath to find libraries from
build directory, they are searched in $PATH. We already have all that
mechanism in place for custom_target() using ExecutableSerialisation
class, so reuse it for install/dist/postconf scripts too.
This has bonus side effect to also use exe_wrapper for those scripts.
Fixes: #8187
Jussi Pakkanen
Luca Weiss
Dylan Baker
Xiaotian Wu
Xavier Claessens
Jeff Moguillansky
Luke Drummond
Ali Alnubani
Olexa Bilaniuk
Paolo Bonzini
Volker-Weissmann