--- a/pkg/imports/wp.go	Mon Aug 05 18:32:54 2019 +0200
+++ b/pkg/imports/wp.go	Tue Aug 06 11:13:28 2019 +0200
@@ -39,6 +39,9 @@
 // to match from points to lines.
 const defaultPointToLinePrecision = 10
 
+// WaterwayProfiles is a Job to import waterway profiles
+// from a given WFS service plus some uploaded CSV file
+// and stores them into the database.
 type WaterwayProfiles struct {
 	Dir string `json:"dir"`
 	// URL the GetCapabilities URL of the WFS service.
@@ -56,6 +59,7 @@
 	Password string `json:"password,omitempty"`
 }
 
+// WPJobKind is the unique name of this import job type.
 const WPJobKind JobKind = "wp"
 
 type wpJobCreator struct{}
@@ -149,10 +153,10 @@
 	return err
 }
 
-func (wp *WaterwayProfiles) CleanUp() error {
-	return os.RemoveAll(wp.Dir)
-}
+// CleanUp deletes temporary files from the filesystem.
+func (wp *WaterwayProfiles) CleanUp() error { return os.RemoveAll(wp.Dir) }
 
+// Do performs the actual import.
 func (wp *WaterwayProfiles) Do(
 	ctx context.Context,
 	importID int64,