Add command to populate debian cache

debian.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"github.com/rs/zerolog/log"
+
+	"code.dumpstack.io/tools/out-of-tree/distro/debian"
+	"code.dumpstack.io/tools/out-of-tree/distro/debian/snapshot"
+)
+
+type DebianCmd struct {
+	Cache DebianCacheCmd `cmd:"" help:"populate cache"`
+}
+
+type DebianCacheCmd struct {
+	Path string `help:"path to cache" default:"debian.cache"`
+}
+
+func (cmd *DebianCacheCmd) Run() (err error) {
+	c, err := debian.NewCache(cmd.Path)
+	if err != nil {
+		log.Error().Err(err).Msg("cache")
+		return
+	}
+	defer c.Close()
+
+	versions, err := snapshot.SourcePackageVersions("linux")
+	if err != nil {
+		log.Error().Err(err).Msg("get source package versions")
+		return
+	}
+
+	for i, version := range versions {
+		slog := log.With().Str("version", version).Logger()
+		slog.Info().Msgf("%03d/%03d", i, len(versions))
+
+		_, err = c.Get(version)
+		if err == nil {
+			slog.Info().Msgf("found in cache")
+			continue
+		}
+
+		var dk debian.DebianKernel
+		dk, err = debian.GetDebianKernel(version)
+		if err != nil {
+			slog.Error().Err(err).Msg("get debian kernel")
+			continue
+		}
+
+		err = c.Put(dk)
+		if err != nil {
+			slog.Error().Err(err).Msg("put to cache")
+			return
+		}
+
+		slog.Info().Msgf("%s cached", version)
+	}
+
+	return
+}

main.go

@@ -42,6 +42,7 @@ type CLI struct {
 	Gen       GenCmd       `cmd:"" help:"generate .out-of-tree.toml skeleton"`
 	Image     ImageCmd     `cmd:"" help:"manage images"`
 	Container ContainerCmd `cmd:"" help:"manage containers"`
+	Debian    DebianCmd    `cmd:"" help:"" hidden:""`
 
 	Version VersionFlag `name:"version" help:"print version information and quit"`