Only set buffer type to stdout when no file args are passed

Fixes #2600

Author: AndydeCleyre

cmd/micro/micro.go

@@ -163,11 +163,6 @@ func LoadInput(args []string) []*buffer.Buffer {
 	var err error
 	buffers := make([]*buffer.Buffer, 0, len(args))
 
-	btype := buffer.BTDefault
-	if !isatty.IsTerminal(os.Stdout.Fd()) {
-		btype = buffer.BTStdout
-	}
-
 	files := make([]string, 0, len(args))
 
 	flagStartPos := buffer.Loc{-1, -1}
@@ -218,6 +213,8 @@ func LoadInput(args []string) []*buffer.Buffer {
 		SearchAfterStart: searchIndex > posIndex,
 	}
 
+	btype := buffer.BTDefault
+
 	if len(files) > 0 {
 		// Option 1
 		// We go through each file and load it
@@ -230,19 +227,24 @@ func LoadInput(args []string) []*buffer.Buffer {
 			// If the file didn't exist, input will be empty, and we'll open an empty buffer
 			buffers = append(buffers, buf)
 		}
-	} else if !isatty.IsTerminal(os.Stdin.Fd()) {
-		// Option 2
-		// The input is not a terminal, so something is being piped in
-		// and we should read from stdin
-		input, err = io.ReadAll(os.Stdin)
-		if err != nil {
-			screen.TermMessage("Error reading from stdin: ", err)
-			input = []byte{}
-		}
-		buffers = append(buffers, buffer.NewBufferFromStringWithCommand(string(input), filename, btype, command))
 	} else {
-		// Option 3, just open an empty buffer
-		buffers = append(buffers, buffer.NewBufferFromStringWithCommand(string(input), filename, btype, command))
+		if !isatty.IsTerminal(os.Stdout.Fd()) {
+			btype = buffer.BTStdout
+		}
+		if !isatty.IsTerminal(os.Stdin.Fd()) {
+			// Option 2
+			// The input is not a terminal, so something is being piped in
+			// and we should read from stdin
+			input, err = io.ReadAll(os.Stdin)
+			if err != nil {
+				screen.TermMessage("Error reading from stdin: ", err)
+				input = []byte{}
+			}
+			buffers = append(buffers, buffer.NewBufferFromStringWithCommand(string(input), filename, btype, command))
+		} else {
+			// Option 3, just open an empty buffer
+			buffers = append(buffers, buffer.NewBufferFromStringWithCommand(string(input), filename, btype, command))
+		}
 	}
 
 	return buffers