Show progress processing hooks

Introduces the ALPM_EVENT_HOOK_RUN_{START,DONE} events that are triggered
at the start and end of running an individual hook.

Signed-off-by: Allan McRae <allan@archlinux.org>

2 files changed, 32 insertions, 3 deletions

diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index 8fcdfdfc..337104e0 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -461,7 +461,11 @@ typedef enum _alpm_event_type_t {
 	/** Processing hooks will be started. */
 	ALPM_EVENT_HOOK_START,
 	/** Processing hooks is finished. */
-	ALPM_EVENT_HOOK_DONE
+	ALPM_EVENT_HOOK_DONE,
+	/** A hook is starting */
+	ALPM_EVENT_HOOK_RUN_START,
+	/** A hook has finnished runnning */
+	ALPM_EVENT_HOOK_RUN_DONE
 } alpm_event_type_t;
 
 typedef struct _alpm_event_any_t {
@@ -559,6 +563,17 @@ typedef struct _alpm_event_hook_t {
 	alpm_hook_when_t when;
 } alpm_event_hook_t;
 
+typedef struct _alpm_event_hook_run_t {
+	/** Type of event.*/
+	alpm_event_type_t type;
+	/** Name of hook */
+	const char *name;
+	/** position of hook being run */
+	size_t position;
+	/** total hooks being run */
+	size_t total;
+} alpm_event_hook_run_t;
+
 /** Events.
  * This is an union passed to the callback, that allows the frontend to know
  * which type of event was triggered (via type). It is then possible to
@@ -576,6 +591,7 @@ typedef union _alpm_event_t {
 	alpm_event_pacnew_created_t pacnew_created;
 	alpm_event_pacsave_created_t pacsave_created;
 	alpm_event_hook_t hook;
+	alpm_event_hook_run_t hook_run;
 } alpm_event_t;
 
 /** Event callback. */
diff --git a/lib/libalpm/hook.c b/lib/libalpm/hook.c
index 9f73ecc6..804cfa57 100644
--- a/lib/libalpm/hook.c
+++ b/lib/libalpm/hook.c
@@ -611,9 +611,10 @@ static int _alpm_hook_run_hook(alpm_handle_t *handle, struct _alpm_hook_t *hook)
 int _alpm_hook_run(alpm_handle_t *handle, alpm_hook_when_t when)
 {
 	alpm_event_hook_t event = { .when = when };
+	alpm_event_hook_run_t hook_event;
 	alpm_list_t *i, *hooks = NULL, *hooks_triggered = NULL;
 	const char *suffix = ".hook";
-	size_t suflen = strlen(suffix);
+	size_t suflen = strlen(suffix), triggered = 0;
 	int ret = 0;
 
 	for(i = alpm_list_last(handle->hookdirs); i; i = alpm_list_previous(i)) {
@@ -714,6 +715,7 @@ int _alpm_hook_run(alpm_handle_t *handle, alpm_hook_when_t when)
 		struct _alpm_hook_t *hook = i->data;
 		if(hook && hook->when == when && _alpm_hook_triggered(handle, hook)) {
 			hooks_triggered = alpm_list_add(hooks_triggered, hook);
+			triggered++;
 		}
 	}
 
@@ -721,12 +723,23 @@ int _alpm_hook_run(alpm_handle_t *handle, alpm_hook_when_t when)
 		event.type = ALPM_EVENT_HOOK_START;
 		EVENT(handle, &event);
 
-		for(i = hooks_triggered; i; i = i->next) {
+		hook_event.position = 1;
+		hook_event.total = triggered;
+
+		for(i = hooks_triggered; i; i = i->next, hook_event.position++) {
 			struct _alpm_hook_t *hook = i->data;
 			_alpm_log(handle, ALPM_LOG_DEBUG, "running hook %s\n", hook->name);
+
+			hook_event.type = ALPM_EVENT_HOOK_RUN_START;
+			hook_event.name = hook->name;
+			EVENT(handle, &hook_event);
+
 			if(_alpm_hook_run_hook(handle, hook) != 0 && hook->abort_on_fail) {
 				ret = -1;
 			}
+
+			hook_event.type = ALPM_EVENT_HOOK_RUN_DONE;
+			EVENT(handle, &hook_event);
 		}
 
 		alpm_list_free(hooks_triggered);