initial commit

pkg/log/logger.go

@@ -0,0 +1,59 @@
+/*
+Copyright © 2026 Thomas von Dein
+
+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/>.
+*/
+package log
+
+import (
+	"log/slog"
+	"os"
+	"runtime/debug"
+
+	"codeberg.org/scip/esctl/pkg/cfg"
+	"github.com/mattn/go-isatty"
+	"github.com/tlinden/yadu"
+)
+
+const LevelNotice = slog.Level(2)
+
+func Init(conf *cfg.Config) {
+	logLevel := &slog.LevelVar{}
+
+	opts := &yadu.Options{
+		Level:     logLevel,
+		AddSource: true,
+		NoColor:   !isatty.IsTerminal(os.Stdout.Fd()),
+	}
+
+	buildInfo, _ := debug.ReadBuildInfo()
+
+	handler := yadu.NewHandler(os.Stdout, opts)
+	debuglogger := slog.New(handler).With(
+		slog.Group("program_info",
+			slog.String("version", cfg.Version),
+			slog.String("go_version", buildInfo.GoVersion),
+		),
+	)
+
+	slog.SetDefault(debuglogger)
+
+	switch conf.Debug {
+	case true:
+		logLevel.Set(slog.LevelDebug)
+
+	default:
+		logLevel.Set(slog.LevelInfo)
+	}
+}