DatabaseSelection: add "match" attribute

Let the database plugin do the match.

12 files changed, 57 insertions, 97 deletions

diff --git a/Makefile.am b/Makefile.am
index 8ce408879..ec55c1bb6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1054,6 +1054,7 @@ test_DumpDatabase_SOURCES = test/DumpDatabase.cxx \
 	src/song.c src/song_sort.c src/song_save.c \
 	src/tag.c src/tag_pool.c src/tag_save.c \
 	src/path.c \
+	src/locate.c \
 	src/text_file.c \
 	src/conf.c src/tokenizer.c src/utils.c src/string_util.c
 
diff --git a/src/DatabaseCommands.cxx b/src/DatabaseCommands.cxx
index e0449e9c8..9dbe4e47f 100644
--- a/src/DatabaseCommands.cxx
+++ b/src/DatabaseCommands.cxx
@@ -67,8 +67,11 @@ handle_match(struct client *client, int argc, char *argv[], bool fold_case)
 		return COMMAND_RETURN_ERROR;
 	}
 
+	const DatabaseSelection selection("", true, list);
+
 	GError *error = NULL;
-	enum command_return ret = findSongsIn(client, "", list, &error)
+	enum command_return ret =
+		db_selection_print(client, selection, true, &error)
 		? COMMAND_RETURN_OK
 		: print_error(client, error);
 
diff --git a/src/DatabasePlaylist.cxx b/src/DatabasePlaylist.cxx
index bdd55fc5a..c6ad9c543 100644
--- a/src/DatabasePlaylist.cxx
+++ b/src/DatabasePlaylist.cxx
@@ -23,7 +23,6 @@
 
 extern "C" {
 #include "dbUtils.h"
-#include "locate.h"
 #include "stored_playlist.h"
 }
 
@@ -40,34 +39,21 @@ AddSong(const char *playlist_path_utf8,
 }
 
 bool
-addAllInToStoredPlaylist(const char *uri_utf8, const char *playlist_path_utf8,
-			 GError **error_r)
+search_add_to_playlist(const char *uri, const char *playlist_path_utf8,
+		       const struct locate_item_list *criteria,
+		       GError **error_r)
 {
-	const DatabaseSelection selection(uri_utf8, true);
+	const DatabaseSelection selection(uri, true, criteria);
 
 	using namespace std::placeholders;
 	const auto f = std::bind(AddSong, playlist_path_utf8, _1, _2);
 	return GetDatabase()->Visit(selection, f, error_r);
 }
 
-static bool
-SearchAddSong(const char *playlist_path_utf8,
-	      const struct locate_item_list *criteria,
-	      song &song, GError **error_r)
-{
-	return !locate_list_song_match(&song, criteria) ||
-		spl_append_song(playlist_path_utf8, &song, error_r);
-}
-
 bool
-search_add_to_playlist(const char *uri, const char *playlist_path_utf8,
-		       const struct locate_item_list *criteria,
-		       GError **error_r)
+addAllInToStoredPlaylist(const char *uri_utf8, const char *playlist_path_utf8,
+			 GError **error_r)
 {
-	const DatabaseSelection selection(uri, true);
-
-	using namespace std::placeholders;
-	const auto f = std::bind(SearchAddSong, playlist_path_utf8,
-				 criteria, _1, _2);
-	return GetDatabase()->Visit(selection, f, error_r);
+	return search_add_to_playlist(uri_utf8, playlist_path_utf8, nullptr,
+				      error_r);
 }
diff --git a/src/DatabasePlaylist.hxx b/src/DatabasePlaylist.hxx
index 961dc5f2c..269585c32 100644
--- a/src/DatabasePlaylist.hxx
+++ b/src/DatabasePlaylist.hxx
@@ -25,7 +25,7 @@
 
 struct locate_item_list;
 
-gcc_nonnull(1,2,3)
+gcc_nonnull(1,2)
 bool
 search_add_to_playlist(const char *uri, const char *path_utf8,
 		       const struct locate_item_list *criteria,
diff --git a/src/DatabasePrint.cxx b/src/DatabasePrint.cxx
index 9f2f46d6b..174ce1b70 100644
--- a/src/DatabasePrint.cxx
+++ b/src/DatabasePrint.cxx
@@ -129,37 +129,19 @@ db_selection_print(struct client *client, const DatabaseSelection &selection,
 		   bool full, GError **error_r)
 {
 	using namespace std::placeholders;
-	const auto d = std::bind(PrintDirectory, client, _1);
+	const auto d = selection.match == nullptr
+		? std::bind(PrintDirectory, client, _1)
+		: VisitDirectory();
 	const auto s = std::bind(full ? PrintSongFull : PrintSongBrief,
 				 client, _1);
-	const auto p = std::bind(full ? PrintPlaylistFull : PrintPlaylistBrief,
-				 client, _1, _2);
+	const auto p = selection.match == nullptr
+		? std::bind(full ? PrintPlaylistFull : PrintPlaylistBrief,
+			    client, _1, _2)
+		: VisitPlaylist();
 
 	return GetDatabase()->Visit(selection, d, s, p, error_r);
 }
 
-static bool
-MatchPrintSong(struct client *client, const struct locate_item_list *criteria,
-	       song &song)
-{
-	if (locate_list_song_match(&song, criteria))
-		song_print_info(client, &song);
-
-	return true;
-}
-
-bool
-findSongsIn(struct client *client, const char *uri,
-	    const struct locate_item_list *criteria,
-	    GError **error_r)
-{
-	const DatabaseSelection selection(uri, true);
-
-	using namespace std::placeholders;
-	const auto f = std::bind(MatchPrintSong, client, criteria, _1);
-	return GetDatabase()->Visit(selection, f, error_r);
-}
-
 struct SearchStats {
 	int numberOfSongs;
 	unsigned long playTime;
@@ -172,13 +154,10 @@ static void printSearchStats(struct client *client, SearchStats *stats)
 }
 
 static bool
-stats_visitor_song(SearchStats &stats, const struct locate_item_list *criteria,
-		   song &song)
+stats_visitor_song(SearchStats &stats, song &song)
 {
-	if (locate_list_song_match(&song, criteria)) {
-		stats.numberOfSongs++;
-		stats.playTime += song_get_duration(&song);
-	}
+	stats.numberOfSongs++;
+	stats.playTime += song_get_duration(&song);
 
 	return true;
 }
@@ -188,14 +167,14 @@ searchStatsForSongsIn(struct client *client, const char *name,
 		      const struct locate_item_list *criteria,
 		      GError **error_r)
 {
-	const DatabaseSelection selection(name, true);
+	const DatabaseSelection selection(name, true, criteria);
 
 	SearchStats stats;
 	stats.numberOfSongs = 0;
 	stats.playTime = 0;
 
 	using namespace std::placeholders;
-	const auto f = std::bind(stats_visitor_song, std::ref(stats), criteria,
+	const auto f = std::bind(stats_visitor_song, std::ref(stats),
 				 _1);
 	if (!GetDatabase()->Visit(selection, f, error_r))
 		return false;
@@ -257,11 +236,9 @@ visitTag(struct client *client, StringSet &set,
 static bool
 unique_tags_visitor_song(struct client *client,
 			 enum tag_type tag_type,
-			 const struct locate_item_list *criteria,
 			 StringSet &set, song &song)
 {
-	if (locate_list_song_match(&song, criteria))
-		visitTag(client, set, song, tag_type);
+	visitTag(client, set, song, tag_type);
 
 	return true;
 }
@@ -271,13 +248,13 @@ listAllUniqueTags(struct client *client, int type,
 		  const struct locate_item_list *criteria,
 		  GError **error_r)
 {
-	const DatabaseSelection selection("", true);
+	const DatabaseSelection selection("", true, criteria);
 
 	StringSet set;
 
 	using namespace std::placeholders;
 	const auto f = std::bind(unique_tags_visitor_song, client,
-				 (enum tag_type)type, criteria, std::ref(set),
+				 (enum tag_type)type, std::ref(set),
 				 _1);
 	if (!GetDatabase()->Visit(selection, f, error_r))
 		return false;
diff --git a/src/DatabasePrint.hxx b/src/DatabasePrint.hxx
index 95670502e..729bcd19a 100644
--- a/src/DatabasePrint.hxx
+++ b/src/DatabasePrint.hxx
@@ -46,12 +46,6 @@ printInfoForAllIn(struct client *client, const char *uri_utf8,
 
 gcc_nonnull(1,2,3)
 bool
-findSongsIn(struct client *client, const char *name,
-	    const struct locate_item_list *criteria,
-	    GError **error_r);
-
-gcc_nonnull(1,2,3)
-bool
 searchStatsForSongsIn(struct client *client, const char *name,
 		      const struct locate_item_list *criteria,
 		      GError **error_r);
diff --git a/src/DatabaseQueue.cxx b/src/DatabaseQueue.cxx
index acbf90741..26ac2c6fd 100644
--- a/src/DatabaseQueue.cxx
+++ b/src/DatabaseQueue.cxx
@@ -23,7 +23,6 @@
 
 extern "C" {
 #include "dbUtils.h"
-#include "locate.h"
 #include "playlist.h"
 }
 
@@ -47,31 +46,18 @@ AddToQueue(struct player_control *pc, song &song, GError **error_r)
 }
 
 bool
-addAllIn(struct player_control *pc, const char *uri, GError **error_r)
+findAddIn(struct player_control *pc, const char *uri,
+	  const struct locate_item_list *criteria, GError **error_r)
 {
-	const DatabaseSelection selection(uri, true);
+	const DatabaseSelection selection(uri, true, criteria);
 
 	using namespace std::placeholders;
 	const auto f = std::bind(AddToQueue, pc, _1, _2);
 	return GetDatabase()->Visit(selection, f, error_r);
 }
 
-static bool
-MatchAddSong(struct player_control *pc,
-	     const struct locate_item_list *criteria,
-	     song &song, GError **error_r)
-{
-	return !locate_list_song_match(&song, criteria) ||
-		AddToQueue(pc, song, error_r);
-}
-
 bool
-findAddIn(struct player_control *pc, const char *uri,
-	  const struct locate_item_list *criteria, GError **error_r)
+addAllIn(struct player_control *pc, const char *uri, GError **error_r)
 {
-	const DatabaseSelection selection(uri, true);
-
-	using namespace std::placeholders;
-	const auto f = std::bind(MatchAddSong, pc, criteria, _1, _2);
-	return GetDatabase()->Visit(selection, f, error_r);
+	return findAddIn(pc, uri, nullptr, error_r);
 }
diff --git a/src/DatabaseQueue.hxx b/src/DatabaseQueue.hxx
index 546836cac..cf8c3ba5d 100644
--- a/src/DatabaseQueue.hxx
+++ b/src/DatabaseQueue.hxx
@@ -26,7 +26,7 @@
 struct locate_item_list;
 struct player_control;
 
-gcc_nonnull(1,2,3)
+gcc_nonnull(1,2)
 bool
 findAddIn(struct player_control *pc, const char *name,
 	  const struct locate_item_list *criteria, GError **error_r);
diff --git a/src/DatabaseSelection.hxx b/src/DatabaseSelection.hxx
index 3e5232288..35e2c27c9 100644
--- a/src/DatabaseSelection.hxx
+++ b/src/DatabaseSelection.hxx
@@ -25,6 +25,8 @@
 #include <assert.h>
 #include <stddef.h>
 
+struct locate_item_list;
+
 struct DatabaseSelection {
 	/**
 	 * The base URI of the search (UTF-8).  Must not begin or end
@@ -38,8 +40,11 @@ struct DatabaseSelection {
 	 */
 	bool recursive;
 
-	DatabaseSelection(const char *_uri, bool _recursive)
-		:uri(_uri), recursive(_recursive) {
+	const locate_item_list *match;
+
+	DatabaseSelection(const char *_uri, bool _recursive,
+			  const locate_item_list *_match=nullptr)
+		:uri(_uri), recursive(_recursive), match(_match) {
 		assert(uri != NULL);
 	}
 };
diff --git a/src/Directory.cxx b/src/Directory.cxx
index b10a0224f..326fa24e9 100644
--- a/src/Directory.cxx
+++ b/src/Directory.cxx
@@ -28,6 +28,7 @@ extern "C" {
 #include "util/list_sort.h"
 #include "db_visitor.h"
 #include "db_lock.h"
+#include "locate.h"
 }
 
 #include <glib.h>
@@ -281,7 +282,7 @@ directory_sort(struct directory *directory)
 }
 
 bool
-directory::Walk(bool recursive,
+directory::Walk(bool recursive, const locate_item_list *match,
 		VisitDirectory visit_directory, VisitSong visit_song,
 		VisitPlaylist visit_playlist,
 		GError **error_r) const
@@ -291,7 +292,9 @@ directory::Walk(bool recursive,
 	if (visit_song) {
 		struct song *song;
 		directory_for_each_song(song, this)
-			if (!visit_song(*song, error_r))
+			if ((match == NULL ||
+			     locate_list_song_match(song, match)) &&
+			    !visit_song(*song, error_r))
 				return false;
 	}
 
@@ -309,8 +312,9 @@ directory::Walk(bool recursive,
 			return false;
 
 		if (recursive &&
-		    !child->Walk(recursive, visit_directory, visit_song,
-				 visit_playlist, error_r))
+		    !child->Walk(recursive, match,
+				 visit_directory, visit_song, visit_playlist,
+				 error_r))
 			return false;
 	}
 
diff --git a/src/db/SimpleDatabasePlugin.cxx b/src/db/SimpleDatabasePlugin.cxx
index e1cf0167b..08a285d3b 100644
--- a/src/db/SimpleDatabasePlugin.cxx
+++ b/src/db/SimpleDatabasePlugin.cxx
@@ -27,6 +27,7 @@ extern "C" {
 #include "db_save.h"
 #include "db_lock.h"
 #include "conf.h"
+#include "locate.h"
 }
 
 #include "directory.h"
@@ -247,7 +248,9 @@ SimpleDatabase::Visit(const DatabaseSelection &selection,
 	if (directory == NULL) {
 		struct song *song;
 		if (visit_song &&
-		    (song = GetSong(selection.uri, NULL)) != NULL)
+		    (song = GetSong(selection.uri, NULL)) != NULL &&
+		    (selection.match == NULL ||
+		     locate_list_song_match(song, selection.match)))
 			return visit_song(*song, error_r);
 
 		g_set_error(error_r, db_quark(), DB_NOT_FOUND,
@@ -260,7 +263,7 @@ SimpleDatabase::Visit(const DatabaseSelection &selection,
 		return false;
 
 	db_lock();
-	bool ret = directory->Walk(selection.recursive,
+	bool ret = directory->Walk(selection.recursive, selection.match,
 				   visit_directory, visit_song, visit_playlist,
 				   error_r);
 	db_unlock();
diff --git a/src/directory.h b/src/directory.h
index c7e70121f..81eb140c2 100644
--- a/src/directory.h
+++ b/src/directory.h
@@ -54,6 +54,7 @@
 
 struct song;
 struct db_visitor;
+struct locate_item_list;
 
 struct directory {
 	/**
@@ -95,7 +96,7 @@ struct directory {
 	/**
 	 * Caller must lock #db_mutex.
 	 */
-	bool Walk(bool recursive,
+	bool Walk(bool recursive, const locate_item_list *match,
 		  VisitDirectory visit_directory, VisitSong visit_song,
 		  VisitPlaylist visit_playlist,
 		  GError **error_r) const;