[#13] locode: Add command to list all locodes

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

locode_list.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	locodedb "git.frostfs.info/TrueCloudLab/frostfs-locode-db/pkg/locode/db"
+	locodebolt "git.frostfs.info/TrueCloudLab/frostfs-locode-db/pkg/locode/db/boltdb"
+	"github.com/spf13/cobra"
+)
+
+var (
+	locodeListCmd = &cobra.Command{
+		Use:   "list",
+		Short: "Print all locodes from FrostFS database",
+		Run: func(cmd *cobra.Command, _ []string) {
+			targetDB := locodebolt.New(locodebolt.Prm{
+				Path: locodeInfoDBPath,
+			}, locodebolt.ReadOnly())
+
+			err := targetDB.Open()
+			ExitOnErr(cmd, "", err)
+
+			defer targetDB.Close()
+
+			err = targetDB.IterateOverLocodes(func(locode string, geoPoint locodedb.Point) {
+				cmd.Printf("%s\t %0.2f %0.2f\n", locode, geoPoint.Latitude(), geoPoint.Longitude())
+			})
+			ExitOnErr(cmd, "", err)
+		},
+	}
+)
+
+func initUtilLocodeListCmd() {
+	flags := locodeListCmd.Flags()
+
+	flags.StringVar(&locodeInfoDBPath, locodeInfoDBFlag, "", locodeInfoDBFlagDesc)
+	_ = locodeListCmd.MarkFlagRequired(locodeInfoDBFlag)
+
+}