fix: 7-to-8 migration check for converted config write errors

aschmahmann · aschmahmann · commit 8ca8a39eeb95 · 2020-09-29T12:26:34.000-04:00
diff --git a/ipfs-7-to-8/migration/config_conv.go b/ipfs-7-to-8/migration/config_conv.go
@@ -91,9 +91,11 @@ func convert(in io.Reader, out io.Writer, convFunc convFunc) error {
 	if err != nil {
 		return err
 	}
-	out.Write(fixed)
-	out.Write([]byte("\n"))
-	return nil
+	if _, err := out.Write(fixed); err != nil {
+		return err
+	}
+	_, err = out.Write([]byte("\n"))
+	return err
 }
 
 func ver7to8(bootstrap []string) []string {

Original file line number	Diff line number	Diff line change
`@@ -91,9 +91,11 @@ func convert(in io.Reader, out io.Writer, convFunc convFunc) error {`
`91`	`91`	`if err != nil {`
`92`	`92`	`return err`
`93`	`93`	`}`
`94`		`- out.Write(fixed)`
`95`		`- out.Write([]byte("\n"))`
`96`		`- return nil`
	`94`	`+ if _, err := out.Write(fixed); err != nil {`
	`95`	`+ return err`
	`96`	`+ }`
	`97`	`+ _, err = out.Write([]byte("\n"))`
	`98`	`+ return err`
`97`	`99`	`}`
`98`	`100`
`99`	`101`	`func ver7to8(bootstrap []string) []string {`