Set default spdlog logger to log to syslog and stdout

meson.build

@@ -28,6 +28,7 @@ lib_src = [
         'src/uenv/env.cpp',
         'src/uenv/envvars.cpp',
         'src/uenv/lex.cpp',
+        'src/uenv/log.cpp',
         'src/uenv/meta.cpp',
         'src/uenv/parse.cpp',
         'src/util/strings.cpp',

src/cli/uenv.cpp

@@ -5,6 +5,8 @@
 #include <fmt/core.h>
 #include <spdlog/spdlog.h>
 
+#include <uenv/log.h>
+
 #include "start.h"
 #include "uenv.h"
 

src/uenv/log.cpp

@@ -0,0 +1,21 @@
+#include <memory>
+
+#include "spdlog/sinks/stdout_color_sinks.h"
+#include "spdlog/sinks/syslog_sink.h"
+#include <spdlog/spdlog.h>
+
+#include "log.h"
+
+namespace uenv {
+void init_log() {
+    auto console_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt>();
+    console_sink->set_level(spdlog::level::warn);
+
+    auto syslog_sink = std::make_shared<spdlog::sinks::syslog_sink_mt>(
+        "uenv", LOG_PID, 0, false);
+    syslog_sink->set_level(spdlog::level::trace);
+
+    spdlog::set_default_logger(std::make_shared<spdlog::logger>(
+        "uenv", spdlog::sinks_init_list({console_sink, syslog_sink})));
+}
+} // namespace uenv

src/uenv/log.h

@@ -0,0 +1,3 @@
+namespace uenv {
+    void init_log();
+}