From 0af6ae62f08ab9a1a53f6b49a2562efcb0f27a52 Mon Sep 17 00:00:00 2001
From: Gerry Demaret <gerry@fosdem.org>
Date: Fri, 20 Oct 2023 16:34:47 +0200
Subject: [PATCH] status: support output to a file

Use renameio to get automagic atomic writes
---
 go.mod    |  6 ++----
 go.sum    |  2 --
 status.go | 10 +++++++++-
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/go.mod b/go.mod
index 7758ad7..e500b5a 100644
--- a/go.mod
+++ b/go.mod
@@ -5,10 +5,8 @@ go 1.19
 require (
 	github.com/BertoldVdb/ms-tools v0.0.0-20231004114646-22ddf782f595
 	github.com/alecthomas/kong v0.8.0
+	github.com/google/renameio v1.0.1
 	github.com/sstallion/go-hid v0.14.1
 )
 
-require (
-	github.com/google/renameio v1.0.1 // indirect
-	golang.org/x/sys v0.8.0 // indirect
-)
+require golang.org/x/sys v0.8.0 // indirect
diff --git a/go.sum b/go.sum
index cf19b3e..78f0d9a 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,3 @@
-github.com/BertoldVdb/ms-tools v0.0.0-20221129120332-dd3c7641485a h1:HiNl4aayDj6YwzDHtbcRBX79r8BzCY6gBmGkalPkVuQ=
-github.com/BertoldVdb/ms-tools v0.0.0-20221129120332-dd3c7641485a/go.mod h1:jmbR3cRIFTGz2Licvnbx5fv/SG6aLRJHpOILmEKTy5M=
 github.com/BertoldVdb/ms-tools v0.0.0-20231004114646-22ddf782f595 h1:dUuC+xTDdNG2kl6WF0O4iJKAzabaKhNfedXrdaz6pQs=
 github.com/BertoldVdb/ms-tools v0.0.0-20231004114646-22ddf782f595/go.mod h1:jmbR3cRIFTGz2Licvnbx5fv/SG6aLRJHpOILmEKTy5M=
 github.com/alecthomas/assert/v2 v2.1.0 h1:tbredtNcQnoSd3QBhQWI7QZ3XHOVkw1Moklp2ojoH/0=
diff --git a/status.go b/status.go
index d5b3430..546d040 100644
--- a/status.go
+++ b/status.go
@@ -2,9 +2,13 @@ package main
 
 import (
 	"fmt"
+	"os"
 	"time"
+
 	"encoding/binary"
 	"encoding/json"
+
+	"github.com/google/renameio"
 )
 
 type Region struct {
@@ -56,7 +60,11 @@ func (s *StatusCmd) Run(c *Context) error {
 			p = fmt.Sprintf("width: %d\nheight: %d\nsignal: %s\n", output.Width, output.Height, output.Signal)
 		}
 
-		fmt.Print(p)
+		if (s.Filename == "") {
+			fmt.Print(p)
+		} else {
+			renameio.WriteFile(s.Filename, []byte(p), os.FileMode(int(0644)))
+		}
 
 		if (s.Loop == 0) {
 			next = false