修复每次运行会产生多余换行的问题

netscane · netscane · commit 1ec3ab391390 · 2020-08-22T13:03:18.000+08:00
diff --git a/main.go b/main.go
@@ -93,8 +93,10 @@ func updateConfFile(confPath string, trackers []string) error {
             !strings.HasPrefix(line, "bt-tracker-") {
             line = "bt-tracker=" + strings.Join(trackers, ",") + "\n" 
         }
+        if bufw.Len() > 0 {
+            bufw.WriteString("\n")
+        }
         bufw.WriteString(line)
-        bufw.WriteString("\n")
     }
     file.Seek(0, 0)
     _, err = file.WriteString(bufw.String())

Original file line number	Diff line number	Diff line change
`@@ -93,8 +93,10 @@ func updateConfFile(confPath string, trackers []string) error {`
`93`	`93`	`!strings.HasPrefix(line, "bt-tracker-") {`
`94`	`94`	`line = "bt-tracker=" + strings.Join(trackers, ",") + "\n"`
`95`	`95`	`}`
	`96`	`+ if bufw.Len() > 0 {`
	`97`	`+ bufw.WriteString("\n")`
	`98`	`+ }`
`96`	`99`	`bufw.WriteString(line)`
`97`		`- bufw.WriteString("\n")`
`98`	`100`	`}`
`99`	`101`	`file.Seek(0, 0)`
`100`	`102`	`_, err = file.WriteString(bufw.String())`