util: Generalize the file mode of 0666 with util.FileMode

cmd/micro/debug.go

@@ -18,7 +18,7 @@ func (NullWriter) Write(data []byte) (n int, err error) {
 // InitLog sets up the debug log system for micro if it has been enabled by compile-time variables
 func InitLog() {
 	if util.Debug == "ON" {
-		f, err := os.OpenFile("log.txt", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0666)
+		f, err := os.OpenFile("log.txt", os.O_RDWR|os.O_CREATE|os.O_TRUNC, util.FileMode)
 		if err != nil {
 			log.Fatalf("error opening file: %v", err)
 		}

internal/action/bindings.go

@@ -15,6 +15,7 @@ import (
 	"github.com/micro-editor/json5"
 	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/screen"
+	"github.com/zyedidia/micro/v2/internal/util"
 	"github.com/micro-editor/tcell/v2"
 )
 
@@ -26,7 +27,7 @@ var Binder = map[string]func(e Event, action string){
 
 func createBindingsIfNotExist(fname string) {
 	if _, e := os.Stat(fname); errors.Is(e, fs.ErrNotExist) {
-		ioutil.WriteFile(fname, []byte("{}"), 0644)
+		ioutil.WriteFile(fname, []byte("{}"), util.FileMode)
 	}
 }
 
@@ -305,7 +306,7 @@ func TryBindKey(k, v string, overwrite bool) (bool, error) {
 		BindKey(k, v, Binder["buffer"])
 
 		txt, _ := json.MarshalIndent(parsed, "", "    ")
-		return true, ioutil.WriteFile(filename, append(txt, '\n'), 0644)
+		return true, ioutil.WriteFile(filename, append(txt, '\n'), util.FileMode)
 	}
 	return false, e
 }
@@ -355,7 +356,7 @@ func UnbindKey(k string) error {
 		}
 
 		txt, _ := json.MarshalIndent(parsed, "", "    ")
-		return ioutil.WriteFile(filename, append(txt, '\n'), 0644)
+		return ioutil.WriteFile(filename, append(txt, '\n'), util.FileMode)
 	}
 	return e
 }

internal/buffer/save.go

@@ -57,7 +57,7 @@ func overwriteFile(name string, enc encoding.Encoding, fn func(io.Writer) error,
 
 			return
 		}
-	} else if writeCloser, err = os.OpenFile(name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666); err != nil {
+	} else if writeCloser, err = os.OpenFile(name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, util.FileMode); err != nil {
 		return
 	}
 

internal/config/settings.go

@@ -356,7 +356,7 @@ func WriteSettings(filename string) error {
 		}
 
 		txt, _ := json.MarshalIndent(parsedSettings, "", "    ")
-		err = ioutil.WriteFile(filename, append(txt, '\n'), 0644)
+		err = ioutil.WriteFile(filename, append(txt, '\n'), util.FileMode)
 	}
 	return err
 }
@@ -378,7 +378,7 @@ func OverwriteSettings(filename string) error {
 		}
 
 		txt, _ := json.MarshalIndent(settings, "", "    ")
-		err = ioutil.WriteFile(filename, append(txt, '\n'), 0644)
+		err = ioutil.WriteFile(filename, append(txt, '\n'), util.FileMode)
 	}
 	return err
 }

internal/util/util.go

@@ -46,6 +46,9 @@ var (
 	Sigterm chan os.Signal
 )
 
+// To be used for file writes before umask is applied
+const FileMode os.FileMode = 0666
+
 func init() {
 	var err error
 	SemVersion, err = semver.Make(Version)

tools/info-plist.go

@@ -37,7 +37,7 @@ func main() {
 	</plist>
 	`
 
-	err := os.WriteFile("/tmp/micro-info.plist", []byte(rawInfoPlist), 0644)
+	err := os.WriteFile("/tmp/micro-info.plist", []byte(rawInfoPlist), 0666)
 	if err != nil {
 		panic(err)
 	}