ExcludeList: move to db/update/

2 files changed, 163 insertions, 0 deletions

diff --git a/src/db/update/ExcludeList.cxx b/src/db/update/ExcludeList.cxx
new file mode 100644
index 000000000..7b691b36b
--- /dev/null
+++ b/src/db/update/ExcludeList.cxx
@@ -0,0 +1,83 @@
+
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * The .mpdignore backend code.
+ *
+ */
+
+#include "config.h"
+#include "ExcludeList.hxx"
+#include "fs/Path.hxx"
+#include "fs/FileSystem.hxx"
+#include "util/Domain.hxx"
+#include "Log.hxx"
+
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+
+static constexpr Domain exclude_list_domain("exclude_list");
+
+bool
+ExcludeList::LoadFile(Path path_fs)
+{
+	FILE *file = FOpen(path_fs, FOpenMode::ReadText);
+	if (file == nullptr) {
+		const int e = errno;
+		if (e != ENOENT) {
+			const auto path_utf8 = path_fs.ToUTF8();
+			FormatErrno(exclude_list_domain,
+				    "Failed to open %s",
+				    path_utf8.c_str());
+		}
+
+		return false;
+	}
+
+	char line[1024];
+	while (fgets(line, sizeof(line), file) != nullptr) {
+		char *p = strchr(line, '#');
+		if (p != nullptr)
+			*p = 0;
+
+		p = g_strstrip(line);
+		if (*p != 0)
+			patterns.emplace_front(p);
+	}
+
+	fclose(file);
+
+	return true;
+}
+
+bool
+ExcludeList::Check(Path name_fs) const
+{
+	assert(!name_fs.IsNull());
+
+	/* XXX include full path name in check */
+
+	for (const auto &i : patterns)
+		if (i.Check(name_fs.c_str()))
+			return true;
+
+	return false;
+}
diff --git a/src/db/update/ExcludeList.hxx b/src/db/update/ExcludeList.hxx
new file mode 100644
index 000000000..8870664b0
--- /dev/null
+++ b/src/db/update/ExcludeList.hxx
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * The .mpdignore backend code.
+ *
+ */
+
+#ifndef MPD_EXCLUDE_H
+#define MPD_EXCLUDE_H
+
+#include "Compiler.h"
+
+#include <forward_list>
+
+#include <glib.h>
+
+class Path;
+
+class ExcludeList {
+	class Pattern {
+		GPatternSpec *pattern;
+
+	public:
+		Pattern(const char *_pattern)
+			:pattern(g_pattern_spec_new(_pattern)) {}
+
+		Pattern(Pattern &&other)
+			:pattern(other.pattern) {
+			other.pattern = nullptr;
+		}
+
+		~Pattern() {
+			g_pattern_spec_free(pattern);
+		}
+
+		gcc_pure
+		bool Check(const char *name_fs) const {
+			return g_pattern_match_string(pattern, name_fs);
+		}
+	};
+
+	std::forward_list<Pattern> patterns;
+
+public:
+	gcc_pure
+	bool IsEmpty() const {
+		return patterns.empty();
+	}
+
+	/**
+	 * Loads and parses a .mpdignore file.
+	 */
+	bool LoadFile(Path path_fs);
+
+	/**
+	 * Checks whether one of the patterns in the .mpdignore file matches
+	 * the specified file name.
+	 */
+	bool Check(Path name_fs) const;
+};
+
+
+#endif