From 29e4fbbb630d8c3722e19211df6e2b58274a33ef Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Tue, 17 Apr 2012 21:16:18 +0000
Subject: Add lilv_plugin_get_project() and get author information from project
 if it is not given directly on the plugin.

git-svn-id: http://svn.drobilla.net/lad/trunk/lilv@4189 a436a847-0d15-0410-975c-d299462d15a1
---
 ChangeLog    |  2 ++
 lilv/lilv.h  | 10 ++++++++++
 src/plugin.c | 40 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 52 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 6f115b4..2660cd6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -24,6 +24,8 @@ lilv (UNRELEASED) unstable; urgency=low
   * Remove use of wordexp.
   * Add lilv_plugin_get_port_by_designation() and lilv_port_get_index() as an
     improved generic alternative to lilv_plugin_get_latency_port_index().
+  * Add lilv_plugin_get_project() and get author information from project if
+    it is not given directly on the plugin.
 
  -- David Robillard <d@drobilla.net>  (UNRELEASED)
 
diff --git a/lilv/lilv.h b/lilv/lilv.h
index 80bf23c..893d1ad 100644
--- a/lilv/lilv.h
+++ b/lilv/lilv.h
@@ -913,6 +913,16 @@ lilv_plugin_get_port_by_designation(const LilvPlugin* plugin,
                                     const LilvNode*   port_class,
                                     const LilvNode*   designation);
 
+/**
+   Get the project the plugin is a part of.
+
+   More information about the project can be read via lilv_world_find_nodes(),
+   typically using properties from DOAP (e.g. doap:name).
+*/
+LILV_API
+LilvNode*
+lilv_plugin_get_project(const LilvPlugin* plugin);
+
 /**
    Get the full name of the plugin's author.
    Returns NULL if author name is not present.
diff --git a/src/plugin.c b/src/plugin.c
index b4a2f0b..8e91f80 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -762,6 +762,33 @@ lilv_plugin_get_port_by_symbol(const LilvPlugin* p,
 	return NULL;
 }
 
+LILV_API
+LilvNode*
+lilv_plugin_get_project(const LilvPlugin* p)
+{
+	lilv_plugin_load_if_necessary(p);
+
+	SordNode* lv2_project = sord_new_uri(p->world->world,
+	                                     (const uint8_t*)LV2_CORE__project);
+
+	SordIter* projects = lilv_world_query_internal(
+		p->world,
+		p->plugin_uri->val.uri_val,
+		lv2_project,
+		NULL);
+
+	sord_node_free(p->world->world, lv2_project);
+
+	if (sord_iter_end(projects)) {
+		return NULL;
+	}
+
+	const SordNode* project = sord_iter_get_node(projects, SORD_OBJECT);
+
+	sord_iter_free(projects);
+	return lilv_node_new_from_node(p->world, project);
+}
+
 static const SordNode*
 lilv_plugin_get_author(const LilvPlugin* p)
 {
@@ -778,6 +805,19 @@ lilv_plugin_get_author(const LilvPlugin* p)
 
 	sord_node_free(p->world->world, doap_maintainer);
 
+	if (sord_iter_end(maintainers)) {
+		LilvNode* project = lilv_plugin_get_project(p);
+		if (!project) {
+			return NULL;
+		}
+
+		maintainers = lilv_world_query_internal(
+			p->world,
+			project->val.uri_val,
+			doap_maintainer,
+			NULL);
+	}
+
 	if (sord_iter_end(maintainers)) {
 		return NULL;
 	}
-- 
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