1 files changed, 44 insertions, 0 deletions
diff --git a/cmd/cmd.go b/cmd/cmd.go
new file mode 100644
index 0000000..5a4f942
--- /dev/null
+++ b/cmd/cmd.go
@@ -0,0 +1,44 @@
+package cmd
+
+import (
+	"errors"
+	"flag"
+	"io/fs"
+	"os"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/adrg/xdg"
+)
+
+type GlobalFlags struct {
+	IndexRoot  string
+	DBPath     string
+	LogLevel   string
+	LogJson    bool
+	NumWorkers uint
+	DateFormat string
+	LogFile    string
+}
+
+func SetupGlobalFlags(fs_ *flag.FlagSet, flags *GlobalFlags) {
+	home, _ := os.UserHomeDir()
+	dataHome := xdg.DataHome
+	if dataHome == "" {
+		dataHome = strings.Join([]string{home, ".local", "share"}, string(os.PathSeparator))
+	}
+	dataHome += string(os.PathSeparator) + "atlas"
+	if err := os.Mkdir(dataHome, 0755); errors.Is(err, fs.ErrExist) {
+	} else if err != nil {
+		panic(err)
+	}
+
+	flag.StringVar(&flags.IndexRoot, "root", xdg.UserDirs.Documents, "root `directory` for indexing")
+	flag.StringVar(&flags.DBPath, "db", dataHome+string(os.PathSeparator)+"default.db", "`path` to document database")
+	flag.StringVar(&flags.LogLevel, "logLevel", "error", "set log `level` (debug, info, warn, error)")
+	flag.BoolVar(&flags.LogJson, "logJson", false, "log to json")
+	flag.UintVar(&flags.NumWorkers, "numWorkers", uint(runtime.NumCPU()), "number of worker threads to use (defaults to core count)")
+	flag.StringVar(&flags.DateFormat, "dateFormat", time.RFC3339, "`format` for dates (see https://pkg.go.dev/time#Layout for more details)")
+	flag.StringVar(&flags.LogFile, "logFile", "", "`file` to log errors to, use '-' for stdout and empty for stderr")
+}