core: add options to customize commands on system signals, quit by default on SIGHUP when not running headless (closes #1595)

New options to customize behavior on signals received, with the default
behavior:

- weechat.signal.sighup: quit in normal mode, reload config in headless
- weechat.signal.sigquit: quit
- weechat.signal.sigterm: quit
- weechat.signal.sigusr1: no command executed by default
- weechat.signal.sigusr2: no command executed by default

The signals SIGUSR1 and SIGUSR2 are introduced by this commit, so it's now
possible to run commands when they are received.

The SIGHUP signal makes now WeeChat quit, it was the behavior before version
2.9 of WeeChat (see commit de1e61f7cd50cbd1a99777fe6611642a51abf5f6).

2 files changed, 32 insertions, 0 deletions

diff --git a/doc/de/includes/autogen_user_options.de.adoc b/doc/de/includes/autogen_user_options.de.adoc
index cbf9ce760..6948cac47 100644
--- a/doc/de/includes/autogen_user_options.de.adoc
+++ b/doc/de/includes/autogen_user_options.de.adoc
@@ -1308,6 +1308,36 @@
 ** Werte: on, off
 ** Standardwert: `+on+`
 
+* [[option_weechat.signal.sighup]] *weechat.signal.sighup*
+** Beschreibung: pass:none[command to execute when the signal is received, multiple commands can be separated by semicolons (note: content is evaluated, see /help eval)]
+** Typ: Zeichenkette
+** Werte: beliebige Zeichenkette
+** Standardwert: `+"${if:${info:weechat_headless}?/reload:/quit -yes}"+`
+
+* [[option_weechat.signal.sigquit]] *weechat.signal.sigquit*
+** Beschreibung: pass:none[command to execute when the signal is received, multiple commands can be separated by semicolons (note: content is evaluated, see /help eval)]
+** Typ: Zeichenkette
+** Werte: beliebige Zeichenkette
+** Standardwert: `+"/quit -yes"+`
+
+* [[option_weechat.signal.sigterm]] *weechat.signal.sigterm*
+** Beschreibung: pass:none[command to execute when the signal is received, multiple commands can be separated by semicolons (note: content is evaluated, see /help eval)]
+** Typ: Zeichenkette
+** Werte: beliebige Zeichenkette
+** Standardwert: `+"/quit -yes"+`
+
+* [[option_weechat.signal.sigusr1]] *weechat.signal.sigusr1*
+** Beschreibung: pass:none[command to execute when the signal is received, multiple commands can be separated by semicolons (note: content is evaluated, see /help eval)]
+** Typ: Zeichenkette
+** Werte: beliebige Zeichenkette
+** Standardwert: `+""+`
+
+* [[option_weechat.signal.sigusr2]] *weechat.signal.sigusr2*
+** Beschreibung: pass:none[command to execute when the signal is received, multiple commands can be separated by semicolons (note: content is evaluated, see /help eval)]
+** Typ: Zeichenkette
+** Werte: beliebige Zeichenkette
+** Standardwert: `+""+`
+
 * [[option_weechat.startup.command_after_plugins]] *weechat.startup.command_after_plugins*
 ** Beschreibung: pass:none[Nach dem Start von WeeChat wird dieser Befehl aufgerufen. Dies geschieht nachdem die Erweiterungen geladen worden sind (mehrere Befehle sind durch ";" zu trennen) (Hinweis: Inhalt wird evaluiert, siehe /help eval)]
 ** Typ: Zeichenkette
diff --git a/doc/de/weechat_user.de.adoc b/doc/de/weechat_user.de.adoc
index e492aea6d..7cf4ac594 100644
--- a/doc/de/weechat_user.de.adoc
+++ b/doc/de/weechat_user.de.adoc
@@ -2453,6 +2453,8 @@ Sektion in Datei _weechat.conf_:
 | proxy      | <<command_weechat_proxy,/proxy>>          +
                /set weechat.proxy.*                      | Proxy Optionen.
 | network    | /set weechat.network.*                    | Netzwerk/SSL Optionen.
+// TRANSLATION MISSING
+| signal     | /set weechat.signal.*                     | Signal options.
 | bar        | <<command_weechat_bar,/bar>>              +
                /set weechat.bar.*                        | Optionen für die Bars.
 | layout     | <<command_weechat_layout,/layout>>        | Layouts.