Allow manager logging to set SQL (#20064)

This PR adds a new manager command to switch on SQL logging and to turn it off.

```
gitea manager logging log-sql
gitea manager logging log-sql --off
```

Signed-off-by: Andrew Thornton <art27@cantab.net>

cmd/manager_logging.go

@@ -174,6 +174,18 @@ var (
 						Action: runAddSMTPLogger,
 					},
 				},
+			}, {
+				Name:  "log-sql",
+				Usage: "Set LogSQL",
+				Flags: []cli.Flag{
+					cli.BoolFlag{
+						Name: "debug",
+					}, cli.BoolFlag{
+						Name:  "off",
+						Usage: "Switch off SQL logging",
+					},
+				},
+				Action: runSetLogSQL,
 			},
 		},
 	}
@@ -381,3 +393,18 @@ func runReleaseReopenLogging(c *cli.Context) error {
 	fmt.Fprintln(os.Stdout, msg)
 	return nil
 }
+
+func runSetLogSQL(c *cli.Context) error {
+	ctx, cancel := installSignals()
+	defer cancel()
+	setup("manager", c.Bool("debug"))
+
+	statusCode, msg := private.SetLogSQL(ctx, !c.Bool("off"))
+	switch statusCode {
+	case http.StatusInternalServerError:
+		return fail("InternalServerError", msg)
+	}
+
+	fmt.Fprintln(os.Stdout, msg)
+	return nil
+}