manifester

type BuildArgs struct {
	SmallFileCutoff int

	ShardTotal int
	ShardIndex int
	// contains filtered or unexported fields
}

type ChunkDiffStats struct {
	Reqs       int   `json:"reqs"`
	Expands    int   `json:"exps"`
	BaseChunks int   `json:"baseC"`
	BaseBytes  int   `json:"baseB"`
	ReqChunks  int   `json:"reqC"`
	ReqBytes   int   `json:"reqB"`
	DiffBytes  int   `json:"diffB"`
	DlTotalMs  int64 `json:"dlMs"`
	ZstdMs     int64 `json:"zstdMs"`
}

type ChunkStoreRead interface {
	// Data will be appended to dst and returned.
	// If dst is given, it must be big enough to hold the full chunk!
	Get(ctx context.Context, key string, dst []byte) ([]byte, error)
}

type ChunkStoreWrite interface {
	PutIfNotExists(ctx context.Context, path, key string, data []byte) ([]byte, error)
	Get(ctx context.Context, path, key string, dst []byte) ([]byte, error)
}

type ChunkStoreWriteConfig struct {
	// One of these is required:
	ChunkBucket      string
	ChunkLocalDir    string
	ZstdEncoderLevel int
}

type Config struct {
	Bind             string
	AllowedUpstreams []string

	ChunkDiffZstdLevel int
	ChunkDiffParallel  int
}

type DeprecatedChunkDiffReq struct {
	Bases []byte
	Reqs  []byte

	// If set: Bases and Reqs each comprise one single file in the given compression
	// format. Pass each one through this decompressor before diffing.
	ExpandBeforeDiff string `json:",omitempty"`
}

type ManifestBuildRes struct {
	CacheKey     string // path relative to ManifestCachePath
	EtagCacheKey string
	Sph          string
	Bytes        []byte
}

type ManifestBuilder struct {
	// contains filtered or unexported fields
}

type ManifestBuilderConfig struct {
	ConcurrentChunkOps int
	ChunkSizer         func(int64) shift.Shift

	// Verify loaded narinfo against these keys. Nil means don't verify.
	PublicKeys []signature.PublicKey
	// Sign manifests with these keys.
	SigningKeys []signature.SecretKey
}

type ManifestReq struct {
	Upstream      string // url of nix binary cache or generic file
	StorePathHash string

	// TODO: this should really be a new request type
	BuildMode string `json:",omitempty"`

	// TODO: move this to pb and embed a GlobalParams?
	DigestAlgo string
	DigestBits int

	// used for tarball cache lookups only
	ETag string

	// sharded manifesting (not in cache key, only shard 0 writes to cache)
	ShardTotal int `json:",omitempty"`
	ShardIndex int `json:",omitempty"`
}

type Stats struct {
	Manifests       int64
	Shards          int64
	TotalChunks     int64
	TotalUncmpBytes int64
	NewChunks       int64
	NewUncmpBytes   int64
	NewCmpBytes     int64
}