1 files changed, 82 insertions, 0 deletions
diff --git a/src/system-stats/logger.cpp b/src/system-stats/logger.cpp
new file mode 100644
index 0000000..418e693
--- /dev/null
+++ b/src/system-stats/logger.cpp
@@ -0,0 +1,82 @@
+#include <iostream>
+#include "common.h"
+#include "date.h"
+
+namespace fs = std::filesystem;
+
+const std::string LogFile::date()
+{
+	namespace C = std::chrono;
+	namespace D = date;
+
+	std::ostringstream str;
+	auto tp = C::system_clock::now();
+	auto dp = D::floor<D::days>(tp);
+	auto yd = D::year_month_day {dp};
+	auto tm = D::make_time(
+	              C::duration_cast<C::milliseconds>(tp - dp));
+
+	str << yd.year() << "-"
+	    << static_cast<unsigned>(yd.month()) << "-"
+	    << yd.day() << "_"
+	    << tm.hours().count();
+	return str.str();
+}
+
+void demo_perms(std::filesystem::perms p)
+{
+    using std::filesystem::perms;
+    auto show = [=](char op, perms perm)
+    {
+        std::cerr << (perms::none == (perm & p) ? '-' : op);
+    };
+    show('r', perms::owner_read);
+    show('w', perms::owner_write);
+    show('x', perms::owner_exec);
+    show('r', perms::group_read);
+    show('w', perms::group_write);
+    show('x', perms::group_exec);
+    show('r', perms::others_read);
+    show('w', perms::others_write);
+    show('x', perms::others_exec);
+    std::cerr << '\n';
+}
+
+LogFile::LogFile()
+{
+	base = fs::path("/var/log/" APP_NAME);
+	try {
+		if(fs::exists(base))
+			if(not fs::is_directory(base))
+				fs::remove(base);
+
+		if(not fs::exists(base))
+			fs::create_directories(base);
+
+		if(fs::create_directory(base / ".test"))
+			fs::remove(base / ".test");
+	} catch (const std::exception& e) {
+		std::cerr << e.what() << std::endl;
+		stdout = true;
+	}
+}
+
+void LogFile::change(refstream& fstr)
+{
+	if(stdout)
+		return;
+
+	if(not (std::addressof(fstr.get()) == std::addressof(stream)))
+		fstr = std::ref(stream);
+
+	std::string now = date();
+
+	if(not (date_ == now)) {
+		if(stream.is_open())
+			stream.close();
+		date_ = now;
+	}
+
+	if(not stream.is_open())
+		stream.open(base / (date_ + ".log"));
+}