Replace mail notification with module event notification framework.

The new framework is to be general-purpose; the mail notification
is implemented as a module.

Althoug the program is operational, the change is not completed yet.
In particular, the docs are out of date and the tests will mostly
fail.

* .gitignore: Update.
* Makefile.am (SUBDIRS): Add modules.
* configure.ac: Mailutils is now optional (though highly
recommended).
(AC_CONFIG_FILES): Build modules/Makefile and modules/mailutils/Makefile.
* modules/Makefile.am: New file.
* modules/mailutils/Makefile.am: New file.
* modules/mailutils/mod_mailutils.c: New file.
* src/mail.c: Remove.
* src/mail.h: Remove.
* src/event.c: New file.
* src/Makefile.am (wydawca_SOURCES): Update.
(LDADD): Remove MAILUTILS_LIBS.
* src/config.c: Remove mail-related configuration statements.
Add module-related ones instead.
* src/wydawca.h (notification_event) <ev_statistics>: New event.
(notification_target): Remove.
(notification) <tgt,sign_keys,msg>: Remove.
<statmask>: New member.
(register_message_template): Remove.
(notify_stats,notify_flush): New protos.
(notification_target_str): Remove.
(format_fn): Remove.
(module) <next,modinit,open>
<flush,close>: New members.
<notify>: Change signature.
(modules_close, module_set_init)
(module_flush): New protos.
(debug_level): Rename to wy_debug_level. All uses changed.
(wy_version): New extern.
(admin_stat_message,admin_stat_sign_key): Remove.
(default_notification): New global.
(triplet_expand_param,triplet_expand_dictionary_query): The
file_triplet argument is const pointer.
(assert_string_arg): Rename to wy_assert_string_arg.
* src/wydawca.c (debug_level): Rename to wy_debug_level.
(wy_version): New global.
(logstats): Call notify_stats.
(main): Call modules_close.
* src/module.c: Keep modules in a singly-linked list instead
of a symtab.
Provide new functions.
* src/net.c: Update.
* src/dictionary.c: Update.
* src/directive.c: Update.
* src/diskio.c: Update.
* src/exec.c: Update.
* src/gpg.c: Update.
* src/job.c (wydawca_scanner): Call notify_flush.
* src/null.c: Update.
* src/process.c: Update.
* src/sql.c: Update.
* src/tcpwrap.c: Update.
* src/triplet.c: Update.
* src/verify.c: Update.
* src/watcher.c: Update.

1 files changed, 9 insertions, 9 deletions

diff --git a/src/watcher.c b/src/watcher.c
index c18beab..1ba7c71 100644
--- a/src/watcher.c
+++ b/src/watcher.c
@@ -86,3 +86,3 @@ create_watcher(struct spool *sp, void *data)
 	if (!sp->inotify_enable) {
-		if (debug_level > 1)
+		if (wy_debug_level > 1)
 			logmsg(LOG_DEBUG,
@@ -93,3 +93,3 @@ create_watcher(struct spool *sp, void *data)
 
-	if (debug_level > 1)
+	if (wy_debug_level > 1)
 		logmsg(LOG_DEBUG, "spool %s: creating watcher %s", sp->tag,
@@ -125,3 +125,3 @@ watcher_init()
 	if (!inotify_enable) {
-		if (debug_level > 1)
+		if (wy_debug_level > 1)
 			logmsg(LOG_DEBUG, "disabling inotify support");
@@ -130,3 +130,3 @@ watcher_init()
 
-	if (debug_level > 1)
+	if (wy_debug_level > 1)
 		logmsg(LOG_DEBUG, "setting up inotify");
@@ -142,3 +142,3 @@ watcher_init()
 	if (!dirwatcher_list) {
-		if (debug_level > 1)
+		if (wy_debug_level > 1)
 			logmsg(LOG_DEBUG, "inotify: nothing to watch");
@@ -146,3 +146,3 @@ watcher_init()
 		ifd = -1;
-	} else if (debug_level > 1)
+	} else if (wy_debug_level > 1)
 		logmsg(LOG_DEBUG, "inotify initialized successfully");
@@ -176,3 +176,3 @@ process_event(struct inotify_event *ep)
 	} else if (ep->mask & IN_CREATE) {
-		if (debug_level > 0)
+		if (wy_debug_level > 0)
 			logmsg(LOG_DEBUG, "%s/%s created",
@@ -180,3 +180,3 @@ process_event(struct inotify_event *ep)
 	} else if (ep->mask & (IN_DELETE | IN_MOVED_FROM)) {
-		if (debug_level > 0)
+		if (wy_debug_level > 0)
 			logmsg(LOG_DEBUG, "%s/%s %s", dwp->spool->source_dir,
@@ -186,3 +186,3 @@ process_event(struct inotify_event *ep)
 	} else if (ep->mask & (IN_CLOSE_WRITE | IN_MOVED_TO)) {
-		if (debug_level > 0)
+		if (wy_debug_level > 0)
 			logmsg(LOG_DEBUG, "%s/%s written",