RuntimeError is way too generic when we have an explicit class for
"Meson reports to the user, something went wrong".
Moreover we now tell people that generic exceptions are "Meson bugs and
should be reported", so our failure to do the technically correct thing
and report the right kind of exception means we get haunted by demons of
confusion. Specifically, people complain to us that Meson told them
"there is a bug in Meson" when their install fails due to meson.build or
build environment issues.
This was a nice idea in theory, but in practice it had various problems:
- On the only platform where ldconfig is expected to be run, it is
really slow, even when the user uses a non-default prefix and ldconfig
doesn't even have permission to run, nor can do anything useful due to
ld.so.conf state
- On FreeBSD, it bricked the system: #9592
- On cross builds, it should not be used and broke installing, because
ldconfig may not be runnable without binfmt + qemu: #9707
- it prints weird and confusing errors in the common "custom prefix"
layout: #9241
Some of these problems can be or have been fixed. But it's a constant
source of footguns and complaints and for something that was originally
supposed to be just "it's the right thing to do anyway, so just do it
automatically" it is entirely too risky.
Ultimately I do not think there is justification for keeping this
feature in since it doesn't actually make everyone happy. Better for
users to decide whether they need this themselves.
This is anyways the case for cmake and autotools and generally any other
build system, so it should not be too intimidating...
Fixes#9721
Otherwise we might not find a ninja that was picked up from the Visual
Studio installation.
```
$ meson setup _build
...
Activating VS 15.9.40
...
Found ninja-1.8.2 at "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\CommonExtensions\Microsoft\CMake\Ninja\ninja.EXE"
$ meson compile -C _build
Activating VS 15.9.40
...
$ meson install -C _build
Can't find ninja, can't rebuild test.
```
Fixes https://github.com/mesonbuild/meson/issues/9774
For libraries installed to libdir, it's not expected to have rpath
hooked up. But for non-default libdirs, the path might not get searched
by default. `ldconfig -m <libdir>` is convenient here, as it will
programmatically add a new directory to search for shared libraries, so
the resulting installed programs work out of the box.
Include the dragonfly BSD platform name, which doesn't match the 'bsd'
catch-all pattern.
They don't utilize a soname cache, so running ldconfig without arguments
is basically pointless -- and at least some of them are buggy: running
ldconfig with the verbose flag switches on "delete all directories from
the hints file, and recreate it using 0 command-line positional
arguments", which would soft-brick the system.
Fixes#9592
This replaces the absolute hack of using
```
install_subdir('nonexisting', install_dir: 'share')
```
which requires you to make sure you don't accidentally or deliberately
have a completely different directory with the same name in your source
tree that is full of files you don't want installed. It also avoids
splitting the name in two and listing them in the wrong order.
You can also set the install mode of each directory component by listing
them one at a time in order, and in fact create nested structures at
all.
Fixes#1604
Properly fixes#2904
On linux system ldconfig needs to be called to update
the ld.so.cache to be able to load libraries from
/usr/local/lib/x86_64-linux-gnu on debian based
distributions for example.
Meson already works like that, except in do_copydir() that requires
absolute destdir. Better explicitly support that instead of leaving it
undefined and unconsistent.
"meson setup" is resolving symlinks for the build directory in
validate_core_dirs. For consistency with it, do the same when
the build directory is passed via -C to devenv, dist, init, install
and test.
This ensures for example that the path to test dependencies is
computed correctly in "meson test".
Fixes: #8765
The existing code works, but it probably doesn't do what the author
thought it would do. `(x or y or z) is not None` works by checking that
each of those things are *truthy* in turn, and returning the first
truthy value, which is compared against None. Using `all()` makes it
very clear that what you want to do is make sure that each value is not
None.
If a custom_target output is a directory, we install it as a directory,
not as a file. And, we try to track subdirectories which are created so
uninstalling works. But one directory creation did not go through
DirMaker, in the case where the output directory does not have any
further subdirectories.
Consolidate on makedirs, since I don't see much point in using os.mkdir
right here.
In commit caab4d3d, the uid and gid arguments passed to os.chown() by
set_chown() were accidentally swapped, causing files to end up with
incorrect owner/group if the owner and group are not the same.
Also update the documentation to better indicate which argument to
install_mode is which.
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
By default all subprojects are installed. If --skip-subprojects is given
with no value only the main project is installed. If --skip-subprojects
is given with a value, it should be a coma separated list of subprojects
to skip and all others will be installed.
Fixes: #2550.
In 0.57.0 installation via polkit won't work anymore. `destdir` is
defaulted to an empty string ('') instead of None. But polkit
installation code incorrectly tests `destdir is None`.
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).
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
Add a new attribute to an object outside of the initializer of
construtor is considered an antipattern for good reason, it's gross,
it's confusing, and it often leads to AttributeErrors down some paths.
Let's not do that.
This adds annotations and fixes a couple of issues (passing Set[bytes]
where List[byte] is expected), however, there's some very gross addition
of attributes to types going on that I haven't fixed yet, and mypy is
very grump about.
It is a usual workflow to fix something and retest to see if it is fixed using a
particular test. When tests start to become numerous, it becomes time consuming
for "meson test" to relink all of them (and in fact rebuild the whole project)
where the user has already specified the tests they want to run, as well as
the tests' dependencies.
Teach meson to be smart and only build what is needed for the test (or suite)
that were specified.
Fixes: #7473
Related: #7830
Previously the destdir was ignored completely when using elevated
privileges to install files as pkexec stripped the DESTDIR environment
variable.
As the destdir is not supposed to require any special privileges
anyways, just re-raise the error.
This catches some very real errors.
The one in scalapack is pretty silly actually, it's failing to figure
out that the exploded list is at least two arguments. However, the code
is actually clearer by not using a list and exploding it, so I've done
that and pylint is happy too.
Xavier Claessens