Embed the data files needed for the ssh kitten into the Go binary

tools/cmd/ssh/data.go

@@ -0,0 +1,37 @@
+// License: GPLv3 Copyright: 2023, Kovid Goyal, <kovid at kovidgoyal.net>
+
+package ssh
+
+import (
+	"bytes"
+	_ "embed"
+	"encoding/binary"
+	"fmt"
+	"kitty/tools/utils"
+	"strconv"
+	"strings"
+)
+
+var _ = fmt.Print
+
+//go:embed data_generated.bin
+var embedded_data string
+
+type Container = map[string][]byte
+
+var Data = (&utils.Once[Container]{Run: func() Container {
+	raw := utils.ReadCompressedEmbeddedData(embedded_data)
+	num_of_entries := binary.LittleEndian.Uint32(raw)
+	raw = raw[4:]
+	ans := make(Container, num_of_entries)
+	idx := bytes.IndexByte(raw, '\n')
+	text := utils.UnsafeBytesToString(raw[:idx])
+	raw = raw[idx+1:]
+	for _, record := range strings.Split(text, ",") {
+		parts := strings.Split(record, " ")
+		offset, _ := strconv.Atoi(parts[1])
+		size, _ := strconv.Atoi(parts[2])
+		ans[parts[0]] = raw[offset : offset+size]
+	}
+	return ans
+}}).Get