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