This creates a full set of option in environment that mirror those in
coredata, this mirroring of the coredata structure is convenient because
lookups int env (such as when initializing compilers) becomes a straight
dict lookup, with no list iteration. It also means that all of the
command line and machine files are read and stored in the correct order
before they're ever accessed, simplifying the logic of using them.
This is like the project options, but for meson builtin options.
The only real differences here have to do with the differences between
meson builtin options and project options. Some meson options can be set
on a per-machine basis (build.pkg_config_path vs pkg_config_path) others
can be set on a per-subproject basis, but should inherit the parent
setting.
'native:' keyword was only added in 0.54. For projects declaring
meson_version >= 0.54, warn, because those projects can and should set
the keyword. For older projects declaring support for older versions,
don't warn and use the default implicitly.
Fixes https://github.com/mesonbuild/meson/issues/6849.
We don't need the legacy variable name system as for dependency()
fallbacks because meson.override_find_program() is largely used already,
so we can just rely on it.
This fix the following common pattern, we don't want to implicitly
fallback on the first line:
foo_dep = dependency('foo', required: false)
if not foo_dep.found()
foo_dep = cc.find_library('foo', required : false)
if not foo_dep.found()
foo_dep = dependency('foo', fallback: 'foo')
endif
endif
When meson is currently being run with a python that seems to have been
installed from the Windows Store, replace the general WindowsApps
directory in search paths with dirname(sys.executable), and also handle
failures with pathlib.resolve on WindowsApps exe files.
This is done with the new cmake subprojects options object
that is similar to the already exisiting configuration data
object. It is consumed by the new `options` kwarg of the
cmake.subproject function.
Ideally we wouldn't need to have the default dict here and could just
rely on it being set as soon as project is called. There is a corner
case exercised by test case common/35 run program, which is that if a
FeatureNew or FeatureDeprecated is called to generate the meson version
it will be unset, to work around this I've changed the type from a dict
to a default dict with '' as the default value.
A better fix would probably be to store all of the
FeatureNew/FeatureDeprecated checks until the end, then evaluate them,
but for now this results in no loss of functionality, only more
functionality, even if it isn't prefect.
This gives the version that the feature was deprecated in, and doesn't
print the warning if the project supports versions of meson in which the
project wasn't deprecated.
The implementation of this function has changed enough that the name
doesn't really reflect what it actually does. It basically returns true
unless you're cross compiling, need and exe_wrapper, and don't have one.
The original function remains but is marked as deprecated.
This makes one small change the meson source language, which is that it
defines that can_run_host_binaries will return true in build == host
compilation, which was the behavior that already existed. Previously
this was undefined in build == host compilation.
Gtest can output junit results with a command line switch. We can parse
this to get more detailed results than the returncode, and put those in
our own Junit output. We basically just throw away the top level
'testsuites' object, then fixup the names of the tests, and shove that
into our junit.
Cosmetic tweak to the error message for incdir() with an absolute path.
Don't split the message in the middle of a sentence at a point which may
or may not correspond to the terminal width.
For the sake of a consistent error message (irrespective of if 'valac' is
present or not), check if the 'c' language is present if we are adding
'vala' before (rather than after) we do compiler detection.
Generally, we'd want to use str() rather than repr() in error messages
anyhow, as that explicitly gives something designed to be read by
humans.
Sometimes {!r} is being used as a shortcut to avoid writing the quotes
in '{!s}'.
Unfortunately, these things aren't quite the same, as the repr of a
string containing '\' (the path separator on Windows) will have those
escaped.
We don't have a good string representation to use for the arbitrary
internal object used as an argument for install_data() when it's neither
a string nor file (which doesn't lead to a good error message), so drop
that for the moment.
This adds support for Files, CustomTarget, Indexs of CustomTargets,
ConfigureFiles, ExternalPrograms, and Executables.
Fixes: #1234Fixes: #3552Fixes: #6175
* dependency: log cached or skipped dependencies with reference to modules
If the dependency is a special dependency which takes modules, the
modules get cached separately and probably reference different
pkg-config files. It's very plausible that we have multiple
dependencies, using different modules. For example:
Run-time dependency qt5 (modules: Core) found: YES 5.14.2 (pkg-config)
Dependency qt5 skipped: feature gui disabled
Obviously this makes no sense, because of course we found qt5 and even
used it. The second line is a lot more readable if it shows this:
Dependency qt5 (modules: Widgets) skipped: feature gui disabled
Similar confusion abounds in the case where a module is found in the
cache -- which module, exactly, has been found here:
Dependency qt5 found: YES 5.14.2 (cached)
Rewrite the dependency function to *consistently* pass around (and use!)
the display_name even in cases where we know it isn't anonymous (this is
just more correct anyway), and make it serve a dual purpose by also
appending the list of modules just like we do for pretty-printing that a
dependency has just been found for the first time.
* fixup! dependency: log cached or skipped dependencies with reference to modules
pointlessly cast modules to str, as they cannot be anything else. But we
want to fail later on, with something more friendly than a stacktrace.
boost/wx have special exceptions for people passing an integer there.
- ExternalProgramHolder has path() method while CustomTargetHolder and
BuildTargetHolder have full_path().
- The returned ExternalProgramHolder's path() method was broken, because
build.Executable object has no get_path() method, it needs the
backend.
- find_program('overridden_prog', version : '>=1.0') was broken because
it needs to execute the exe that is not yet built. Now assume the
program has the (sub)project version.
- If the version check fails, interpreter uses
ExternalProgramHolder.get_name() for the error message but
build.Executable does not implement get_name() method.
A current rather untyped storage of options is one of the things that
contributes to the options code being so complex. This takes a small
step in synching down by storing the compiler options in dicts per
language.
Future work might be replacing the langauge strings with an enum, and
defaultdict with a custom struct, just like `PerMachine` and
`MachineChoice`.
Currently, looking for a nonexisting program using find_program() will
return an NonExistingExternalProgram instace with the default name
'nonexistingprogram'. Let's store the target program's name in it, so it
can be printed if needed.
Signed-off-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
Currently, the error message is printing the object itself. Showing the
program's name is better.
Signed-off-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
This change made `5 dependency versions` unit test fail because now once
a subproject has been configured, the fallback variable is checked to be
consistent. So it has to use new subproject because 'somesub' was
already configured by previous tests.
Similar to meson.override_find_program() but overrides the result of the
dependency() function.
Also ensure that dependency() always returns the same result when
looking for the same dependency, this fixes cases where parts of the
project could be using a system library and other parts use the library
provided by a subproject.
listify shouldn't be unholdering, it's a function to turn scalar values
into lists, or flatten lists. Having a separate function is clearer,
easier to understand, and can be run recursively if necessary.
As any child of BuildTargetHolder might need the name of the object,
provides a method to get object name.
This is useful in gst-build to display the plugin name and not
the filename.
This commit annotates most of interpreterbase.py. However,
there are stil the @wraps missing, since I am unsure what
the types are supposed to be here.
Currently, detect_machine_info() is called:
- from Environment.__init__(), before we have any compiler available
- from Interpreter.__init__() with the list of languages provided to
project() (determined via the initial parse_project())
This is not sufficent in the case where no languages are specified to
project() and are later added with add_languages().
We cannot correctly detect that the host machine should be treated as
x86 (on x86_64 hardware) until we have a compiler we are told to use.
Redetect machines after project(), and after every add_languages().
Warnings have a location node object (with subdir and lineno
attributes), which is passed as a location: kwarg to mlog.warning() and
formatted in _log_error().
Re-purpose the subdir attribute (path relative to the source root dir,
with an implied filename of 'meson.build'), which is stored into the
node by parser(), to contain a pathname.
(Properly I should rename 'subdir' -> 'file' everywhere, but that's a
lot of churn just to see if this works)
Notes:
The warning location node may also have a colno attribute, which is
currently ignored by _log_error().
We can't currently issue warnings with locations in meson_options.txt
because the filename isn't part of the location (as it's assumed to be
'meson.build).
A MesonException has file, lineno and colno attributes, which get
formatted as a location in mlog.exception().
The file attribute got changed from a path relative to the root source
directory to a pathname (absolute or relative to cwd) in one place in
commit b8fbbf59. Adjust all the other places the file attribute is set
to match.
Also:
Setting MesonException.file seems to be missing in the case where Parser
returned a non-CodeBlockNode object. Fortunately, that looks like it's
unreachable, but add it just in case.
This adds a warnings counter for subprojects that passed. This is to
encourage developpers to check warnings in the logs and hopefully fix
them. Otherwise they could be hidden in hundreds lines of logs.
This also print the error message for subprojects that did not pass. The
error message is often enough to fix the issue (e.g. missing
dependency) and it's easier than searching in the logs why a subproject
failed.
This leads to better version parsing. An concrete example use case is
llc. When invoking llc with "--version", the output is
```
LLVM (http://llvm.org/):
LLVM version 9.0.1
...
```
The old version parsing recognizes the dot in the first line as version.
This commit also tries to adapt the two regexes to each other.
Reported-by: Björn Fiedler <fiedler@sra.uni-hannover.de>
This improves the common case of a simple meson.build which doesn't
contain any 'native: true' targets to not require a native compiler when
cross-compiling, without needing any changes in the meson.build.
v2:
Do it the right way around!
Currently it's just like if all builtin/base/compiler options are
yielding. This patch makes possible to have non-yielding builtin
options. The value in is overriden in this order:
- Value from parent project
- Value from subproject's default_options if set
- Value from subproject() default_options if set
- Value from command line if set
This allows Meson native-file [properties] to be used.
This avoids the need to call meson from a script file or have a
long command line invocation of `meson setup`
The method meson.get_native_property('prop', 'fallback') is added.
The native file can contain properties like
```
[properties]
myprop1 = 'foo'
mydir2 = 'lib/custom'
```
Then from within `meson.build`
```meson
x1 = meson.get_native_property('myprop1')
thedir = meson.get_native_property('mydir2', 'libs')
```
fallback values are optional
When a dependency is required, not found on the system, and its fallback
is disabled with --wrap-mode=nofallback, meson should abort instead of
returning not-found.
declare_dependencies
This allows dependencies declared in subprojects to set variables, and
for those variables to be accessed via the get_variable method, just
like those from pkg-config and cmake. This makes it easier to use
projects from subprojects in a polymorphic manner, lowering the
distinction between a subproject and an external dependency every
further.
this can be useful for if/elif where linker behaviors must be
considered.
For example, clang with "link" vs gcc with "ld.bfd" etc.
ci for compiler.get_linker_id() method
doc
add @FeatureNew check
Co-Authored-By: Daniel Mensinger <daniel@mensinger-ka.de>
Refactor the code inside a common function for consistency.
It's not needed to add dependencies in func_configure_file() because
it's already done in run_command_impl(). Do it only for files from
`input:` in the case some of them does not end up in the command
arguments.
* Have set() and set_quoted() of configuration object work with newlines.
set_quoted() makes the value into a double-quoted string, so let's
assume C-style string, in particular with newlines as "\n".
Also take care of remaining newlines in dump_conf_header(). C or nasm
macros expect single-line values so if the value was multi-line, we
would end up with broken syntax. Appending a backslash at each end of
line make them concat into a single line in both C and nasm format
(note: multi-line macros in nasm are actually possible apparently but
use another format not outputted by current meson code). Also note that
the replacement is done at the end only when dumping the conf as a
header because we cannot assume anything about the format when replacing
variables from an input file (in this case, it should be the dev
responsibility).
* Add unit tests for multiline set() and set_quoted().
Instead of only displaying the identifier of the linker, display also the path
to the executable in order to report useful information when cross-compiling.
In a large project, it can be hard to guess what meson "had in mind", when many different
warnings are added in different places. Let's make the message precise and specify the location.
WARNING: Consider using the built-in warning_level option instead of adding warning flags by hand.
↓
meson.build:414: WARNING: Consider using the built-in warning_level option instead of using "-Wextra".
fixes#6000
The idea is that end-users want to specify an array of directories to search by default
without an if/elif stack. It's obvious that Unix absolute paths are not absolute on
Windows, so silently discard Unix absolute paths here for Windows instead of raising
exception.
This fixes two separate issues, one is that benchmark warns about
depends and priority; The other is that we passed bad values like
is_parallel into the test and would actually run benchmarks in parallel,
which is bad.
In qemu, minikconf generates a depfile that meson could use to
automatically reconfigure on dependency change.
Note: someone clever can perhaps find a way to express this with a
ninja rule & depfile=. I didn't manage, so I wrote a simple depfile
parser.
Since commit 38a658214 ("configure_file: Support taking values from a
dict" #4236), configuration_data() and configure_file()'s
configuration kwarg can take a dict. Add missing version checks.
* backends/vs: Only set platform_toolset if it isn't already set
* interpreter: set backend up after the compiler
Otherwise we won't be able to check which VS toolchain to use.
* docs/using-visual-studio: wrap lines
* docs: recommend the py launcher instead of python3 for windows
* set backend.environment when building a dummy version
* backends/vs: Add support for clang-cl with vs2017 and vs2019 backends
* backends/vs: Add support for ICL (19.x) with vs2015 and vs2017 backends
When g-ir-scanner is overriden, we can't call it at configure time
but we know what options are avalaible (as it started using meson
after checked options where added) so do not try to call it to retrieve
the version as it will fail.
Also see https://github.com/mesonbuild/meson/issues/3442
It is often desirable to use ~ for home directory in -D compilation args.
Why the transform to pathlib.Path and back to str? Because this is one of many
places where the list(map(str,..))) will be eliminated upon Python 3.6 being
minimum Meson Python requirement.
Build and target info is confusing in that case. However still log that
information, as it is useful in case something slips out of sync and
needs to be debugged.
Xavier Claessens