stream output from certain git commands in command log panel

pkg/commands/oscommands/exec_live_default.go

@@ -4,95 +4,34 @@
 package oscommands
 
 import (
-	"bufio"
-	"bytes"
-	"strings"
-	"unicode/utf8"
-
-	"github.com/go-errors/errors"
-	"github.com/jesseduffield/lazygit/pkg/utils"
+	"io"
+	"os/exec"
 
 	"github.com/creack/pty"
 )
 
-// RunCommandWithOutputLiveWrapper runs a command and return every word that gets written in stdout
-// Output is a function that executes by every word that gets read by bufio
-// As return of output you need to give a string that will be written to stdin
-// NOTE: If the return data is empty it won't written anything to stdin
-func RunCommandWithOutputLiveWrapper(c *OSCommand, cmdObj ICmdObj, output func(string) string) error {
-	c.Log.WithField("command", cmdObj.ToString()).Info("RunCommand")
-	c.LogCommand(cmdObj.ToString(), true)
-	cmd := cmdObj.AddEnvVars("LANG=en_US.UTF-8", "LC_ALL=en_US.UTF-8").GetCmd()
+func RunCommandWithOutputLiveWrapper(
+	c *OSCommand,
+	cmdObj ICmdObj,
+	writer io.Writer,
+	output func(string) string,
+) error {
+	return RunCommandWithOutputLiveAux(
+		c,
+		cmdObj,
+		writer,
+		output,
+		func(cmd *exec.Cmd) (*cmdHandler, error) {
+			ptmx, err := pty.Start(cmd)
+			if err != nil {
+				return nil, err
+			}
 
-	var stderr bytes.Buffer
-	cmd.Stderr = &stderr
-
-	ptmx, err := pty.Start(cmd)
-
-	if err != nil {
-		return err
-	}
-
-	go utils.Safe(func() {
-		scanner := bufio.NewScanner(ptmx)
-		scanner.Split(scanWordsWithNewLines)
-		for scanner.Scan() {
-			toOutput := strings.Trim(scanner.Text(), " ")
-			_, _ = ptmx.WriteString(output(toOutput))
-		}
-	})
-
-	err = cmd.Wait()
-	ptmx.Close()
-	if err != nil {
-		return errors.New(stderr.String())
-	}
-
-	return nil
-}
-
-// scanWordsWithNewLines is a copy of bufio.ScanWords but this also captures new lines
-// For specific comments about this function take a look at: bufio.ScanWords
-func scanWordsWithNewLines(data []byte, atEOF bool) (advance int, token []byte, err error) {
-	start := 0
-	for width := 0; start < len(data); start += width {
-		var r rune
-		r, width = utf8.DecodeRune(data[start:])
-		if !isSpace(r) {
-			break
-		}
-	}
-	for width, i := 0, start; i < len(data); i += width {
-		var r rune
-		r, width = utf8.DecodeRune(data[i:])
-		if isSpace(r) {
-			return i + width, data[start:i], nil
-		}
-	}
-	if atEOF && len(data) > start {
-		return len(data), data[start:], nil
-	}
-	return start, nil, nil
-}
-
-// isSpace is also copied from the bufio package and has been modified to also captures new lines
-// For specific comments about this function take a look at: bufio.isSpace
-func isSpace(r rune) bool {
-	if r <= '\u00FF' {
-		switch r {
-		case ' ', '\t', '\v', '\f':
-			return true
-		case '\u0085', '\u00A0':
-			return true
-		}
-		return false
-	}
-	if '\u2000' <= r && r <= '\u200a' {
-		return true
-	}
-	switch r {
-	case '\u1680', '\u2028', '\u2029', '\u202f', '\u205f', '\u3000':
-		return true
-	}
-	return false
+			return &cmdHandler{
+				stdoutPipe: ptmx,
+				stdinPipe:  ptmx,
+				close:      ptmx.Close,
+			}, nil
+		},
+	)
 }