Improved crossref error handling.

cmd/add.go

@@ -229,9 +229,19 @@ func query(search string) string {
 
 	ws, err := client.Query(search)
 	if err != nil {
+		if err == crossref.ErrZeroWorks ||
+			err == crossref.ErrEmptyQuery {
+			info.println("Nothing found...")
+			return ""
+		}
+
 		panic(err)
 	}
 
+	if len(ws) == 1 {
+		return ws[0].DOI
+	}
+
 	type work struct {
 		Title  string
 		Short  string
@@ -242,14 +252,6 @@ func query(search string) string {
 
 	works := []work{}
 
-	switch len(ws) {
-	case 0:
-		info.println("Nothing found...")
-		return ""
-	case 1:
-		return ws[0].DOI
-	}
-
 	for _, v := range ws {
 		works = append(works, work{
 			Title:  v.Title,
@@ -306,7 +308,7 @@ func query(search string) string {
 func fetchDOI(doi string) (*scholar.Entry, error) {
 	client := crossref.NewClient("Scholar", viper.GetString("GENERAL.mailto"))
 
-	w, err := client.Works(doi)
+	w, err := client.DOI(doi)
 	if err != nil {
 		return &scholar.Entry{}, err
 	}

cmd/general.go

@@ -152,8 +152,8 @@ Add an entry to create this directory or run:
 
 	scholar config
 
-to set the correct path of this library.
-`)
+to set the correct path of this library.`,
+		)
 		panic("not found: library path")
 	}