We don't want to allow targets that conflict with:
- our aliased meson-* targets for phony commands
- any meson-*/ directories we create for internal purposes
We do want to allow targets such as:
- our own meson-*.X manpages
There are a couple routes we could take.
Using a better restriction, such as `meson-internal__*`, is trivially
done for our aliased targets, but changing directory names is...
awkward. We probably cannot do this, and doing the former but not the
latter is not very useful.
We could also carefully allow patterns we know we won't use, such as
file extensions, but which the manpages need, which works for our
directories and for many aliased targets, but run_target() is
user-specified and can be anything.
Use a hybrid approach to cover both use cases. We will now allow target
names that fulfill *all* the following criteria:
- it begins with "meson-"
- it doesn't continue with "internal__"
- it has a file extension
The `install_headers` function now has an optional argument
`preserve_path` that allows installing multi-directory
headerfile structures that live alongside sourcecode with a
single command.
For example, the headerfile structure
headers = [
'one.h',
'two.h',
'alpha/one.h',
'alpha/two.h',
'alpha/three.h'
'beta/one.h'
]
can now be passed to `install_headers(headers, subdir: 'mylib', preserve_path: true)`
and the resulting directory tree will look like
{prefix}
└── include
└── mylib
├── alpha
│ ├── one.h
│ ├── two.h
│ └── three.h
├── beta
│ └── one.h
├── one.h
└── two.h
Fixes#3371
We have two checks for the type accepted here. One is the basic
typed_kwargs type-checking, which declares it accepts:
str | include_directories
The other is the custom validator which further narrows it to strings
with certain option-like properties (needs to be an = assignment).
The former is obviously wrong, which doesn't really matter all that much
but still isn't very nice...
Introduced in commit f34013fb08.
override_options makes no sense for custom_target as we don't use it for
anything. Also, this was added in commit c3c30d4b06
despite not being allowed in permittedKwargsc3c30d4b0.
For inexplicable reasons, we had a known_kwargs for custom_target that
looped over kwargs and issued a warning, not an error, for unknown
kwargs. It was impossible to ever hit that check to begin with, though,
ever since commit e08d735105 which added
permittedKwargs and obsoleted those manual checks with real errors.
So at one point override_options was specially permitted to be used
without emitting a warning, and then for about half a decade it was an
error, and then based on some dead code it was allowed again for a bit.
But through all this it doesn't do anything and isn't documented.
We accept boolean false to indicate "do not install this one particular
output", but the type checking simply checked if it is a bool. We do
this correctly for configure_file, so copy the same validator from
there.
This fixes bogus messages "skipped: feature foo disabled" when
auto_features=disabled. It was reporting the name of the latest
get_option() call instead of the name of the current feature option.
This is especially visible in GStreamer summary where it should show a
different option name for every subproject but instead shows "tools"
everywhere:
```
Subprojects
gst-devtools : NO Feature 'tools' disabled
gst-editing-services : NO Feature 'tools' disabled
...
```
Change message
Header <foo.h> has symbol "BAR"
to
Header "foo.h" has symbol "BAR"
with the first part also now in bold. This is more consistent with
other messages like
Has header "foo.h"
and
Checking whether type "foo" has member "bar"
We were poking directly at the node, so if it was a FunctionNode then
this broke. Instead, just do a reverse lookup in the overrides table to
get the original find_program name.
In commit 6acfe48f32, the kwarg was added
to environment() in addition to the env object methods. As part of the
associated refactor, a shared KwargInfo was used, and evolved to be new
since 0.62.0 in the two cases where it is in fact new.
However, it *also* set the base KwargInfo for the exact same newness,
which is wrong as it was present ever since the initial introduction in
0.34.0
As usual for anything that predates 0.37.0 we simply don't tag
FeatureNew. Revert this back to the same KwargInfo definition from
before the refactoring commit.
Fixes#10402
By default, meson will try to look for shared libraries first before
static ones. In the meson.build itself, one can use the static keyword
to control if a static library will be tried first but there's no simple
way for an end user performing a build to switch back and forth at will.
Let's cover this usecase by adding an option that allows a user to
specify if they want dependency lookups to try static or shared
libraries first. The writer of the meson.build can manually specify the
static keyword where appropriate which will override the value of this
option.
Some projects treat meson.project_source_root() as the root of the
dependency files, because the project itself merely wraps a bunch of
datafiles. Our validation to make sure this doesn't point to another
subproject, made use of pathlib.Path's generator for all component
paths, which... did not include the path itself. So go ahead and
explicitly check that too. Add a test case to verify it while we are at
it.
Fixes https://github.com/mesonbuild/meson/pull/10103#issuecomment-1114901033
This function can be used to add fundamental dependencies such as glib
to all build products in one fell swoop. This can be useful whenever,
due to a project's coding conventions, it is not really possible to
compile any source file without including the dependency.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Extract to a separate function the code that resolves dependencies
for compiler methods. We will reuse it for add_project_dependencies().
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Both dependencies.ExternalLibrary and dependencies.InternalDependency are
subclasses of dependencies.Dependency, no need to list them separately.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This handles various edge cases:
- checks for sandbox violations just like all other functions
- warn for direntry issues
- check for generated files referred to via strings instead of the
returned object
(All valid use cases for wanting to sneak around the checks, are made to
work via commit bba588d8b03a9125bf5c4faaad31b70d39242b68.)
This allows tracking which subproject it came from at the time of
definition, rather than the time of use. As a result, it is no longer
possible for one subproject which knows that another subproject installs
some data files, to expose those data files via its own
declare_dependency.
There are somewhat common, reasonable and legitimate use cases for a
dependency to provide data files installed to /usr which are used as
command inputs. When getting a dependency from a subproject, however,
the attempt to directly construct an input file from a subproject
results in a sandbox violation. This means not all dependencies can be
wrapped as a subproject.
One example is wayland-protocols XML files which get scanned and used to
produce C source files.
Teach Meson to recognize when a string path is the result of fetching a
dep.get_variable(), and special case this to be exempt from subproject
violations.
A requirement of this is that the file must be installed by
install_data() or install_subdir() because otherwise it is not actually
representative of what a pkg-config dependency would provide.
dep.get_variable() only supports string values for pkg-config and
config-tool, because those interfaces use text communication, and
internal variables (from declare_dependency) operate the same way.
CMake had an oddity, where get_variable doesn't document that it allows
list values but apparently it miiiiiight work? Actually getting that
kind of result would be dangerously inconsistent though. Also, CMake
does not support lists so it's a lie. Strings that are *treated* as
lists with `;` splitting don't count...
We could do two things here:
- raise an error
- treat it as a string and return a string
It's not clear what the use case of get_variable() on a maybe-list is,
and should probably be a hard error. But that's controversial, so
instead we just return the original `;`-delimited string. It is probably
the wrong thing, but users are welcome to cope with that somehow on
their own.
This moves generally useful logic from GNOME module's
_get_native_binary() into find_program() implementation. We could decide
later to expose it as public API.
Adds a new debug() function that can be used in the meson.build to
log messages to the meson-log.txt that will not be printed to stdout
when configuring the project.
These are only used for type checking, so don't bother importing them at
runtime.
Generally add future annotations at the same time, to make sure that
existing uses of these imports don't need to be quoted.
Previously subprojects inherited languages already added by main
project, or any previous subproject. This change to have a list of
compilers per interpreters, which means that if a subproject does not
add 'c' language it won't be able to compile .c files any more, even if
main project added the 'c' language.
This delays processing list of compilers until the interpreter adds the
BuildTarget into its list of targets. That way the interpreter can add
missing languages instead of duplicating that logic into BuildTarget for
the cython case.
We currently don't handle subdirectories correctly in
structured_sources, which is problematic. To make this easier to handle
correctly, I've simply changed `structured_sources` to only use Files
and not strings as an implementation detail.
We need this for the python module, as implemented in commit
e8375d20a9, but that then crashed in
subprojects because those options were never forwarded to the subproject
interpreter.
We are supposed to fallback on the fallback when running the vcstagger,
but instead we errored out during configure.
Fixes regression in commit b402817fb6.
Before this, we used shutil.which || relative paths, and in the latter
case if it could not be found we still wrote out that path but it failed
to run in vcstagger. Now, we use find_program under the hood, so it
needs to be run in non-fatal mode, and if it is not found, we simply
keep the original command string. It's a VCS command, so if we magically
end up finding it at runtime because it was installed after running
configure, that is *fine*.
It used to be possible to do this:
```
bomb = find_program('nonexisting', required: false)
test('traceback during meson test', bomb)
```
and it would in fact bomb out, with:
```
[0/1] Running all tests.
Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/mesonbuild/mesonmain.py", line 149, in run
return options.run_func(options)
File "/usr/lib/python3.10/site-packages/mesonbuild/mtest.py", line 2017, in run
return th.doit()
File "/usr/lib/python3.10/site-packages/mesonbuild/mtest.py", line 1685, in doit
runners.extend(self.get_test_runner(test) for test in tests)
File "/usr/lib/python3.10/site-packages/mesonbuild/mtest.py", line 1685, in <genexpr>
runners.extend(self.get_test_runner(test) for test in tests)
File "/usr/lib/python3.10/site-packages/mesonbuild/mtest.py", line 1586, in get_test_runner
return SingleTestRunner(test, env, name, options)
File "/usr/lib/python3.10/site-packages/mesonbuild/mtest.py", line 1308, in __init__
self.cmd = self._get_cmd()
File "/usr/lib/python3.10/site-packages/mesonbuild/mtest.py", line 1374, in _get_cmd
test_cmd = self._get_test_cmd()
File "/usr/lib/python3.10/site-packages/mesonbuild/mtest.py", line 1352, in _get_test_cmd
if self.options.no_rebuild and not os.path.isfile(testentry):
File "/usr/lib/python3.10/genericpath.py", line 30, in isfile
st = os.stat(path)
TypeError: stat: path should be string, bytes, os.PathLike or integer, not NoneType
ERROR: Unhandled python exception
This is a Meson bug and should be reported!
```
This is something we explicitly check for elsewhere, for example when
using a not-found program as a command in a custom target or generator.
Check for it when making a test too, and error out with a similar error.
Fixes#10091
These are only used for type checking, so don't bother importing them at
runtime.
Generally add future annotations at the same time, to make sure that
existing uses of these imports don't need to be quoted.
Using future annotations, type annotations become strings at runtime and
don't impact performance. This is not possible to do with T.cast though,
because it is a function argument instead of an annotation.
Quote the type argument everywhere in order to have the same effect as
future annotations. This also allows linters to better detect in some
cases that a given import is typing-only.
It is often useful to check the found version of a program without
checking whether you can successfully find
`find_program('foo', required: false, version: '>=XXX')`
Eli Schwartz
Florian "sp1rit"
Xavier Claessens
Dylan Baker
Daniel Mensinger
Peter Eisentraut
Dudemanguy
Paolo Bonzini
Kirill Isakov
Eli Schwartz
Marvin Scholz
Jussi Pakkanen