fcversion

func (*Info) E2BVersion ¶

func (v *Info) E2BVersion() (e2bVersion semver.Version, ok bool)

E2BVersion returns the e2b release semver carried by e2b-format versions. ok is false for the other formats.

func (*Info) HasFilesystemSnapshots ¶

func (v *Info) HasFilesystemSnapshots() bool

HasFilesystemSnapshots reports whether this build's release contract includes producing filesystem-only (memoryless) snapshots. Callers refuse the request when false — silently taking a memory snapshot instead would betray an explicit memory:false.

func (*Info) HasFreePageHinting ¶

func (v *Info) HasFreePageHinting() bool

func (*Info) HasFreePageReporting ¶

func (v *Info) HasFreePageReporting() bool

func (*Info) HasHugePages ¶

func (v *Info) HasHugePages() bool

func (*Info) HasInPlaceCheckpoint ¶

func (v *Info) HasInPlaceCheckpoint() bool

HasInPlaceCheckpoint reports whether this build's release contract includes the in-place checkpoint (pause, snapshot, resume the same FC process, with the deferred CoW memory export). Callers fall back to the resume-fresh checkpoint when false.

func (*Info) HasMemfd ¶

func (v *Info) HasMemfd() bool

func (*Info) LDKey ¶

func (v *Info) LDKey() (key string, ok bool)

LDKey returns the key this version resolves through in the LaunchDarkly firecracker-versions map: vX.Y for legacy versions, vX.Y-<e2b-major> for e2b-format versions. ok is false for bare upstream versions, which never came from the release pipeline and have no LD line.

func (*Info) Version ¶

func (v *Info) Version() semver.Version

Version returns the upstream Firecracker version. For the e2b format only the release line is known, so patch is always 0.