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denju

package module

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Versions in this module

v0

v0.4.0

Sep 17, 2026

Changes in this version

+ var ErrChecksumMismatch = errors.New("denju: the download does not match its checksum")

+ var ErrDownloadFailed = errors.New("denju: the download failed")

+ var ErrResumeRejected = errors.New("denju: the source cannot resume from this offset")

+ var ErrResumedChecksumMismatch = errors.New("denju: the resumed download does not match its checksum")

type Config

+ CooldownScope CooldownScope

+ PartialRetention time.Duration

+ RetainPrevious bool

+ type CooldownScope int

+ const CooldownAnyUpdate

+ const CooldownRolledBackVersion

type Outcome

+ RolledBackAt time.Time

+ RolledBackVersion string

type Request

+ Offset int64

type Result

+ Cause error

+ type ResumableSource interface

+ ResumesFromOffset func()

+ func FileSource(path string) ResumableSource

type Updater

+ func (u *Updater) InCooldownFor(targetVersion string, now time.Time) (bool, time.Duration, error)

+ func (u *Updater) PreviousBinary() (path, sha256, version string, ok bool)

v0.3.0

Jul 27, 2026

Changes in this version

type Result

+ ProgramIntact bool

v0.2.0

Jul 26, 2026

Changes in this version

+ type Pending struct

+ FromVersion string

+ ID string

+ ToVersion string

type Updater

+ func (u *Updater) PendingAttestation() (Pending, bool)

v0.1.2

Jul 26, 2026

v0.1.1

Jul 26, 2026

v0.1.0

Jul 26, 2026

Changes in this version

+ func ResolveBinary() (string, error)

+ type Config struct

+ BeforeHandoff func()

+ BinaryPath string

+ Cooldown time.Duration

+ CrashTolerance int

+ DownloadTimeout time.Duration

+ Drain func(context.Context) error

+ DrainTimeout time.Duration

+ HandshakeTimeout time.Duration

+ Log Logger

+ Namespace string

+ RecordPath string

+ Selftest func() error

+ SelftestTimeout time.Duration

+ ServiceName string

+ StaleThreshold time.Duration

+ Version string

+ type Level int

+ const LevelDebug

+ const LevelError

+ const LevelInfo

+ const LevelWarn

+ func (l Level) String() string

+ type Logger func(level Level, msg string, attrs ...any)

+ func SlogLogger(l *slog.Logger) Logger

+ type Outcome struct

+ At time.Time

+ CooldownAt time.Time

+ Error string

+ FromVersion string

+ ID string

+ Reported bool

+ Status Status

+ ToVersion string

+ type Request struct

+ ID string

+ SHA256 string

+ TargetArch string

+ TargetOS string

+ TargetVersion string

+ type Result struct

+ Error string

+ Status Status

+ type Source interface

+ Fetch func(ctx context.Context, req Request, w io.Writer) error

+ type Status string

+ const StatusFailed

+ const StatusRefusedCooldown

+ const StatusRolledBack

+ const StatusSucceeded

+ type Updater struct

+ func New(cfg Config) (*Updater, error)

+ func (u *Updater) Attest(ctx context.Context, d time.Duration)

+ func (u *Updater) BinaryPath() string

+ func (u *Updater) CleanupReported()

+ func (u *Updater) Commit() error

+ func (u *Updater) InCooldown(now time.Time) (bool, time.Duration, error)

+ func (u *Updater) MarkReported() error

+ func (u *Updater) PendingOutcome() (*Outcome, error)

+ func (u *Updater) Repair() error

+ func (u *Updater) Restart() error

+ func (u *Updater) Rollback(cause string) error

+ func (u *Updater) RunProcessRole() (exitCode int, isRole bool)

+ func (u *Updater) Update(ctx context.Context, req Request, src Source) Result