pw_log_set resets the log level of the logger to the Pipewire's current
level. Here, it's instead expected that the level is retained, so call
pw_log_set_level first.
It used to be that pw_init set the log level based on PIPEWIRE_DEBUG
value, but this is now done only when using Pipewire's default logger.
It's not used elsewhere, so there is no good reason yet to expose it.
Besides, I expect that GLib will likely add a method in the future
to return the XDG_STATE_HOME (which is relatively new in the xdg spec)
* Make the flags public and give them nicer names
* Pass down the flags from the caller, so the caller can now explicitly
ask for looking into specific directories
* Rename the methods
* Remove and inline the wp_get_xdg_config_dir() method, since it's only
used internally
* Refactor the lookup dirs ordering to get both WIREPLUMBER_*_DIR env
variables to replace all the other directories. Previously, we were looking
for scripts in WIREPLUMBER_DATA_DIR, but we were also looking in /etc at
the same time (with precedence, even), which could result in unexpected
behaviour. Now, if a WIREPLUMBER environment variable is specified,
we only look in there.
This also corrects the logic of loading config files in m-lua-scripting.
Previously, if an error occured within the iteration function,
the error was not properly propagated to the caller because -EINVAL
was being added to nfiles instead of checked.
The previous approach to loading config files was to ask WP for the
directory and then search those for the config files. This patch changes the
approach - a caller now asks WP to search for a specific config file or
iterate over a config file directory.
This allows us to implement a directory lookup order, i.e.
"wireplumber.conf" may be in XDG_CONFIG_DIR, /etc/,
/usr/share and the first one found is used.
For configuration directories, the new method iterates over all matching
entries (files + directories) and invokes a callback for each entry.
This enables distributions to ship default files in /usr/share/wireplumber
but have admins and users override them on a local basis. For lua scripts in
particular, overriding a distribution-provided file with an empty file
effectively disables it, adding a file adds it in the right sort order.
We have ended up not using them, so let's not carry them
in the ABI of 0.4
We can always revert that, but let's first decide how
these objects should be used
And don't override PIPEWIRE_DEBUG, unless WIREPLUMBER_DEBUG is set.
This allows pipewire to use log.level as well to set up its logging.
If WIREPLUMBER_DEBUG is set, though, override PIPEWIRE_DEBUG to prevent
log.level from being used.
It is inevitable to avoid setting PIPEWIRE_DEBUG, because the
log.level from client.conf will kick in and change the pipewire log
level when the pw_context is created. PIPEWIRE_DEBUG is the only
way to override.
* Use a more complete API to introspect SPA types
* Avoid the need for the Tables enumeration; the tables
are now registered with a string
* Avoid the need for initialization, work directly on spa_types
and other static data
* Allow working with Object pods that are not Params;
the PARAMS table was previously hardcoded in the pod implementation
* Add a different dynamic type registration system, closer to
how spa type works. The only regression is that we can no longer
register additional custom object fields (custom SPA_PROP_* for example),
but this feature can be re-added later
