Fetch Prefixes from Triplestore

cmd/prefixes.go

@@ -0,0 +1,49 @@
+package cmd
+
+import (
+	wisski_distillery "github.com/FAU-CDI/wisski-distillery"
+	"github.com/FAU-CDI/wisski-distillery/internal/core"
+	"github.com/tkw1536/goprogram/exit"
+)
+
+// Prefixes is then 'prefixes' command
+var Prefixes wisski_distillery.Command = prefixes{}
+
+type prefixes struct {
+	Positionals struct {
+		Slug string `positional-arg-name:"SLUG" required:"1-1" description:"slug of instance to show prefixes for"`
+	} `positional-args:"true"`
+}
+
+func (prefixes) Description() wisski_distillery.Description {
+	return wisski_distillery.Description{
+		Requirements: core.Requirements{
+			NeedsDistillery: true,
+		},
+		Command:     "prefixes",
+		Description: "List all Prefixes for a specific WissKI",
+	}
+}
+
+var errPrefixesGeneric = exit.Error{
+	ExitCode: exit.ExitGeneric,
+	Message:  "Unable to load prefixes",
+}
+
+func (p prefixes) Run(context wisski_distillery.Context) error {
+	instance, err := context.Environment.Instances().WissKI(p.Positionals.Slug)
+	if err != nil {
+		return err
+	}
+
+	prefixes, err := instance.Prefixes()
+	if err != nil {
+		return errPrefixesGeneric.Wrap(err)
+	}
+
+	for _, p := range prefixes {
+		context.Println(p)
+	}
+
+	return nil
+}