package query import ( "fmt" "github.com/MichaelMure/git-bug/bug" ) // Parse parse a query DSL // // Ex: "status:open author:descartes sort:edit-asc" // // Supported filter qualifiers and syntax are described in docs/queries.md func Parse(query string) (*Query, error) { tokens, err := tokenize(query) if err != nil { return nil, err } q := &Query{ OrderBy: OrderByCreation, OrderDirection: OrderDescending, } sortingDone := false for _, t := range tokens { switch t.kind { case tokenKindSearch: q.Search = append(q.Search, t.term) break case tokenKindKV: switch t.qualifier { case "status", "state": status, err := bug.StatusFromString(t.value) if err != nil { return nil, err } q.Status = append(q.Status, status) case "author": q.Author = append(q.Author, t.value) case "actor": q.Actor = append(q.Actor, t.value) case "participant": q.Participant = append(q.Participant, t.value) case "label": q.Label = append(q.Label, t.value) case "title": q.Title = append(q.Title, t.value) case "no": switch t.value { case "label": q.NoLabel = true default: return nil, fmt.Errorf("unknown \"no\" filter \"%s\"", t.value) } case "sort": if sortingDone { return nil, fmt.Errorf("multiple sorting") } err = parseSorting(q, t.value) if err != nil { return nil, err } sortingDone = true default: return nil, fmt.Errorf("unknown qualifier \"%s\"", t.qualifier) } case tokenKindKVV: switch t.qualifier { case "metadata": q.Metadata = append(q.Metadata, StringPair{Key: t.subQualifier, Value: t.value}) default: return nil, fmt.Errorf("unknown qualifier \"%s:%s\"", t.qualifier, t.subQualifier) } } } return q, nil } func parseSorting(q *Query, value string) error { switch value { // default ASC case "id-desc": q.OrderBy = OrderById q.OrderDirection = OrderDescending case "id", "id-asc": q.OrderBy = OrderById q.OrderDirection = OrderAscending // default DESC case "creation", "creation-desc": q.OrderBy = OrderByCreation q.OrderDirection = OrderDescending case "creation-asc": q.OrderBy = OrderByCreation q.OrderDirection = OrderAscending // default DESC case "edit", "edit-desc": q.OrderBy = OrderByEdit q.OrderDirection = OrderDescending case "edit-asc": q.OrderBy = OrderByEdit q.OrderDirection = OrderAscending default: return fmt.Errorf("unknown sorting %s", value) } return nil }