rename files to snake_case

common/utils/file_utils.hpp

@@ -0,0 +1,95 @@
+/***
+    This file is part of snapcast
+    Copyright (C) 2014-2019  Johannes Pohl
+
+    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 3 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, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifndef FILE_UTILS_H
+#define FILE_UTILS_H
+
+#include "string_utils.hpp"
+#include <fstream>
+#include <grp.h>
+#include <pwd.h>
+#include <stdexcept>
+#include <vector>
+
+
+namespace utils
+{
+namespace file
+{
+
+
+static bool exists(const std::string& filename)
+{
+    std::ifstream infile(filename.c_str());
+    return infile.good();
+}
+
+
+static void do_chown(const std::string& file_path, const std::string& user_name, const std::string& group_name)
+{
+    if (user_name.empty() && group_name.empty())
+        return;
+
+    if (!exists(file_path))
+        return;
+
+    uid_t uid = -1;
+    gid_t gid = -1;
+
+    if (!user_name.empty())
+    {
+        struct passwd* pwd = getpwnam(user_name.c_str());
+        if (pwd == nullptr)
+            throw std::runtime_error("Failed to get uid");
+        uid = pwd->pw_uid;
+    }
+
+    if (!group_name.empty())
+    {
+        struct group* grp = getgrnam(group_name.c_str());
+        if (grp == nullptr)
+            throw std::runtime_error("Failed to get gid");
+        gid = grp->gr_gid;
+    }
+
+    if (chown(file_path.c_str(), uid, gid) == -1)
+        throw std::runtime_error("chown failed");
+}
+
+
+static int mkdirRecursive(const char* path, mode_t mode)
+{
+    std::vector<std::string> pathes = utils::string::split(path, '/');
+    std::stringstream ss;
+    int res = 0;
+    for (const auto& p : pathes)
+    {
+        if (p.empty())
+            continue;
+        ss << "/" << p;
+        int res = mkdir(ss.str().c_str(), mode);
+        if ((res != 0) && (errno != EEXIST))
+            return res;
+    }
+    return res;
+}
+
+} // namespace file
+} // namespace utils
+
+#endif