Add +/- prefix to lines

databus23 · databus23 · commit b30732b6b128 · 2017-03-14T16:34:14.000+01:00
This helps spotting addition/removal of empty lines
diff --git a/diff.go b/diff.go
@@ -41,11 +41,11 @@ func printDiff(before, after string, to io.Writer) {
 
 		switch diff.Delta {
 		case difflib.RightOnly:
-			fmt.Fprintf(to, "%s\n", ansi.Color(text, "green"))
+			fmt.Fprintf(to, "%s\n", ansi.Color("+ "+text, "green"))
 		case difflib.LeftOnly:
-			fmt.Fprintf(to, "%s\n", ansi.Color(text, "red"))
+			fmt.Fprintf(to, "%s\n", ansi.Color("- "+text, "red"))
 		case difflib.Common:
-			fmt.Fprintf(to, "%s\n", text)
+			fmt.Fprintf(to, "%s\n", "  "+text)
 		}
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -41,11 +41,11 @@ func printDiff(before, after string, to io.Writer) {`
`41`	`41`
`42`	`42`	`switch diff.Delta {`
`43`	`43`	`case difflib.RightOnly:`
`44`		`- fmt.Fprintf(to, "%s\n", ansi.Color(text, "green"))`
	`44`	`+ fmt.Fprintf(to, "%s\n", ansi.Color("+ "+text, "green"))`
`45`	`45`	`case difflib.LeftOnly:`
`46`		`- fmt.Fprintf(to, "%s\n", ansi.Color(text, "red"))`
	`46`	`+ fmt.Fprintf(to, "%s\n", ansi.Color("- "+text, "red"))`
`47`	`47`	`case difflib.Common:`
`48`		`- fmt.Fprintf(to, "%s\n", text)`
	`48`	`+ fmt.Fprintf(to, "%s\n", " "+text)`
`49`	`49`	`}`
`50`	`50`	`}`
`51`	`51`