fix parsing include databases

pvanderlinden · pvanderlinden · commit ffa6782e412a · 2021-04-17T12:05:28.000+02:00
Signed-off-by: Paul van der Linden &lt;mail@paultjuh.org&gt;
diff --git a/cmd/postgres_exporter/postgres_exporter.go b/cmd/postgres_exporter/postgres_exporter.go
@@ -1149,7 +1149,9 @@ func ExcludeDatabases(s string) ExporterOpt {
 // IncludeDatabases allows to filter result from AutoDiscoverDatabases
 func IncludeDatabases(s string) ExporterOpt {
 	return func(e *Exporter) {
-		e.includeDatabases = strings.Split(s, ",")
+		if len(s) > 0 {
+			e.includeDatabases = strings.Split(s, ",")
+		}
 	}
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1149,7 +1149,9 @@ func ExcludeDatabases(s string) ExporterOpt {`
`1149`	`1149`	`// IncludeDatabases allows to filter result from AutoDiscoverDatabases`
`1150`	`1150`	`func IncludeDatabases(s string) ExporterOpt {`
`1151`	`1151`	`return func(e *Exporter) {`
`1152`		`- e.includeDatabases = strings.Split(s, ",")`
	`1152`	`+ if len(s) > 0 {`
	`1153`	`+ e.includeDatabases = strings.Split(s, ",")`
	`1154`	`+ }`
`1153`	`1155`	`}`
`1154`	`1156`	`}`
`1155`	`1157`