bring in khatru and eventstore.

eventstore/cmd/eventstore/query.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/mailru/easyjson"
+	"github.com/nbd-wtf/go-nostr"
+	"github.com/urfave/cli/v3"
+)
+
+var query = &cli.Command{
+	Name:        "query",
+	ArgsUsage:   "[<filter-json>]",
+	Usage:       "queries an eventstore for events, takes a filter as argument",
+	Description: "applies the filter to the currently open eventstore, returning up to a million events.\n takes either a filter as an argument or reads a stream of filters from stdin.",
+	Action: func(ctx context.Context, c *cli.Command) error {
+		hasError := false
+		for line := range getStdinLinesOrFirstArgument(c) {
+			filter := nostr.Filter{}
+			if err := easyjson.Unmarshal([]byte(line), &filter); err != nil {
+				fmt.Fprintf(os.Stderr, "invalid filter '%s': %s\n", line, err)
+				hasError = true
+				continue
+			}
+
+			ch, err := db.QueryEvents(ctx, filter)
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "error querying: %s\n", err)
+				hasError = true
+				continue
+			}
+
+			for evt := range ch {
+				fmt.Println(evt)
+			}
+		}
+
+		if hasError {
+			os.Exit(123)
+		}
+		return nil
+	},
+}