Make individual scripts the unit of ownership for theme contributions
so that loading a script that calls weechat.theme_register(...) and
later unloading it correctly removes the script's overrides.
Plugin API addition (weechat-plugin.h):
- new function pointer t_weechat_plugin.theme_unregister_script
delegates to core's theme_unregister_script.
- new convenience macro weechat_theme_unregister_script(script).
- WEECHAT_PLUGIN_API_VERSION bumped to 20260527-02.
Script API additions (plugin-script-api.{c,h}):
- new plugin_script_api_theme_register (plugin, script, name,
overrides) forwards to the plugin API with the script pointer
as the contribution owner, so contributions are tracked
per-script (not per script-language plugin).
Lifecycle wiring (plugin-script.c):
- new file-local plugin_script_remove_themes (plugin, script)
calls weechat_theme_unregister_script.
- plugin_script_remove now calls it alongside the other
plugin_script_remove_* helpers, so script-unload tears down
everything (configs, bar items, themes, hooks).
Eight language bindings updated to call
plugin_script_api_theme_register instead of weechat_theme_register
directly, so they pass the script pointer as owner:
- python, perl, ruby, lua, tcl, javascript, php, guile.
The behavior change is end-to-end visible only at script unload:
before, an unloaded script's theme overrides lingered in the
registry forever and would be re-applied on the next /theme apply;
after, they vanish when the script unloads. /plugin unload of an
entire script-language plugin already worked via commit 24's hook
in plugin_remove (which drops both plugin-only contributions and
their script-owned children when the language plugin itself goes
away, because the contribution's plugin pointer matches).
No new unit tests in this commit: the underlying theme_unregister_script
function is covered by TEST(CoreTheme, UnregisterByOwner), and the
remaining changes are plumbing.
This pointer is the first argument received by callbacks, and the
existing argument "data" is now automatically freed by WeeChat when the
object containing the callback is removed.
With this new pointer, the linked list of callbacks in scripts has been
removed. This will improve speed of scripts (using a lot of hooks),
reduce memory used by scripts and reduce time to unload scripts.
Following functions are affected in the C API:
* exec_on_files
* config_new
* config_new_section
* config_new_option
* hook_command
* hook_command_run
* hook_timer
* hook_fd
* hook_process
* hook_process_hashtable
* hook_connect
* hook_print
* hook_signal
* hook_hsignal
* hook_config
* hook_completion
* hook_modifier
* hook_info
* hook_info_hashtable
* hook_infolist
* hook_hdata
* hook_focus
* unhook_all_plugin
* buffer_new
* bar_item_new
* upgrade_new
* upgrade_read
Sébastien Helleu