status: support output to a file

Use renameio to get automagic atomic writes
FOSDEM · Oct 20, 2023 · 0af6ae6 · 0af6ae6
1 parent ade54d6
commit 0af6ae6
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Showing 3 changed files with 11 additions and 7 deletions.
diff --git 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
@@ -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
@@ -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