1 files changed, 146 insertions, 0 deletions
diff --git a/src/runtime_paths.cpp b/src/runtime_paths.cpp
new file mode 100644
index 00000000..8dbe5c0c
--- /dev/null
+++ b/src/runtime_paths.cpp
@@ -0,0 +1,146 @@
+/*
+  This file is part of Ingen.
+  Copyright 2007-2015 David Robillard <http://drobilla.net/>
+
+  Ingen is free software: you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free
+  Software Foundation, either version 3 of the License, or any later version.
+
+  Ingen 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 Affero General Public License for details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <climits>
+#include <cstdlib>
+#include <cstdlib>
+#include <sstream>
+#include <string>
+
+#include <dlfcn.h>
+
+#include "ingen/runtime_paths.hpp"
+#include "ingen/FilePath.hpp"
+
+#include "ingen_config.h"
+
+namespace Ingen {
+
+static FilePath bundle_path;
+
+#if defined(__APPLE__)
+const char               search_path_separator = ':';
+static const char* const library_prefix        = "lib";
+static const char* const library_suffix        = ".dylib";
+#elif defined(_WIN32) && !defined(__CYGWIN__)
+const char               search_path_separator = ';';
+static const char* const library_prefix        = "";
+static const char* const library_suffix        = ".dll";
+#else
+const char               search_path_separator = ':';
+static const char* const library_prefix        = "lib";
+static const char* const library_suffix        = ".so";
+#endif
+
+/** Must be called once at startup, and passed a pointer to a function
+ * that lives in the 'top level' of the bundle (e.g. the executable).
+ * Passing a function defined in a module etc. will not work!
+ */
+void
+set_bundle_path_from_code(void* function)
+{
+	Dl_info dli;
+	dladdr(function, &dli);
+
+#ifdef BUNDLE
+	char bin_loc[PATH_MAX];
+	realpath(dli.dli_fname, bin_loc);
+#else
+	const char* bin_loc = dli.dli_fname;
+#endif
+
+	bundle_path = FilePath(bin_loc).parent_path();
+}
+
+void
+set_bundle_path(const char* path)
+{
+	bundle_path = FilePath(path);
+}
+
+/** Return the absolute path of a file in an Ingen LV2 bundle
+ */
+FilePath
+bundle_file_path(const std::string& name)
+{
+	return bundle_path / name;
+}
+
+/** Return the absolute path of a 'resource' file.
+ */
+FilePath
+data_file_path(const std::string& name)
+{
+#ifdef BUNDLE
+	return bundle_path / INGEN_DATA_DIR / name;
+#else
+	return FilePath(INGEN_DATA_DIR) / name;
+#endif
+}
+
+/** Return the absolute path of a module (dynamically loaded shared library).
+ */
+FilePath
+ingen_module_path(const std::string& name, FilePath dir)
+{
+	FilePath ret;
+	if (dir.empty()) {
+#ifdef BUNDLE
+		dir = FilePath(bundle_path) / INGEN_MODULE_DIR;
+#else
+		dir = FilePath(INGEN_MODULE_DIR);
+#endif
+	}
+
+	return dir /
+	       (std::string(library_prefix) + "ingen_" + name + library_suffix);
+}
+
+FilePath
+user_config_dir()
+{
+	const char* const xdg_config_home = getenv("XDG_CONFIG_HOME");
+	const char* const home            = getenv("HOME");
+
+	if (xdg_config_home) {
+		return FilePath(xdg_config_home);
+	} else if (home) {
+		return FilePath(home) / ".config";
+	}
+
+	return FilePath();
+}
+
+std::vector<FilePath>
+system_config_dirs()
+{
+	const char* const xdg_config_dirs = getenv("XDG_CONFIG_DIRS");
+
+	std::vector<FilePath> paths;
+	if (xdg_config_dirs) {
+		std::istringstream ss(xdg_config_dirs);
+		std::string entry;
+		while (std::getline(ss, entry, search_path_separator)) {
+			paths.emplace_back(entry);
+		}
+	} else {
+		paths.emplace_back("/etc/xdg");
+	}
+
+	return paths;
+}
+
+} // namespace Ingen