Enum Command 

pub enum Command {
    Compile(CompileArgs),
    Compare(CompareArgs),
    Explain(ExplainArgs),
    SupportedSyntax,
    SupportReport(SupportReportArgs),
    StructuralReport(StructuralReportArgs),
    SemanticReport(SemanticReportArgs),
    TzifValidate(TzifValidateArgs),
    AuxTableValidate(AuxTableValidateArgs),
    VendorOracleSample,
    VendorOracleAdmit(VendorOracleAdmitArgs),
    ReleaseDiff(ReleaseDiffArgs),
    Doctor(DoctorArgs),
    SizeReport(SizeReportArgs),
}

Variants

Compile(CompileArgs)

Compile zones from tzdata source into a TZif output tree.

Compare(CompareArgs)

Compile a zone and compare it against reference zic.

Explain(ExplainArgs)

Describe what a zone would compile to (or why it is unsupported).

SupportedSyntax

Print the syntax subset supported by this version.

SupportReport(SupportReportArgs)

Report which identifiers in a source file compile, and bucket the rest by reason.

StructuralReport(StructuralReportArgs)

Inventory how zic-rs TZif output differs structurally from reference zic (T8).

SemanticReport(SemanticReportArgs)

Emit typed zdump-backed semantic witnesses (offset/is_dst/abbreviation at probe instants) for a compact zone set — the behaviour axis of the conformance engine (T15.3). Degrades visibly (oracle_mode: unavailable) when reference zic/zdump are absent; never errors on that.

TzifValidate(TzifValidateArgs)

Validate emitted TZif against RFC 9636 structural invariants (T15.4) — a separate axis from semantic behaviour. Emits typed structural/footer/reader-compat/leap-expiry/version verdicts; validates zic-rs output and reference zic output (so the validator respects the real producer profile, not only zic-rs’s assumptions).

AuxTableValidate(AuxTableValidateArgs)

Validate auxiliary tables (zone.tab/zone1970.tab/zonenow.tab/iso3166.tab) for table structural admissibility only (T16.4) — a separate surface from compile/semantic/structural. These are policy/index/reference artifacts, not compile inputs; a conformant row proves the row is well-formed, never that the named zone was compiled or is historically equivalent.

VendorOracleSample

Emit the canonical vendor-oracle-receipt-v1 sample (T16.5) — the schema example an external vendor/platform lab fills in. The core repo admits receipts (verifies the contract + rules); it does not run QEMU/VMs (does_not_ship_or_operate_vendor_qemu_labs_in_core_repo).

VendorOracleAdmit(VendorOracleAdmitArgs)

Ingest + admit an externally-produced vendor-oracle-receipt-v1 JSON file (T16.5b) — the convergence point: an external lab generates a receipt, the core repo admits or rejects it by typed reason. Fail-closed parsing (a parse error is distinct from an inadmissible receipt); the core runs no VMs.

ReleaseDiff(ReleaseDiffArgs)

Diff two tzdb releases (T16.6a). Compiles each identifier in --old and --new and classifies the change: structural (always) + behavioural past/future (with a zdump oracle). Read-only; never installs. JSON zic-rs-release-diff-v1.

Doctor(DoctorArgs)

Read-only environment probe (T16.6b) — reference zic/zdump present? optional tzdata.zi version+hash? It admits/validates nothing and always exits 0 (a diagnosis, not a gate).

SizeReport(SizeReportArgs)

Read-only bundle footprint (T21.2) — measure a produced --out tree (TZif/link/other counts, bytes, version histogram, largest file) + a deterministic bundle_hash. For container/embedded image builders (docs/container-embedded-builder.md). Never compiles/writes/admits.

Trait Implementations

impl Debug for Command

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromArgMatches for Command

fn from_arg_matches(__clap_arg_matches: &ArgMatches) -> Result<Self, Error>

Instantiate Self from ArgMatches, parsing the arguments as needed.

fn from_arg_matches_mut( __clap_arg_matches: &mut ArgMatches, ) -> Result<Self, Error>

Instantiate Self from ArgMatches, parsing the arguments as needed.

fn update_from_arg_matches( &mut self, __clap_arg_matches: &ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

fn update_from_arg_matches_mut<'b>( &mut self, __clap_arg_matches: &mut ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

impl Subcommand for Command

fn augment_subcommands<'b>(__clap_app: Command) -> Command

Append to Command so it can instantiate Self via FromArgMatches::from_arg_matches_mut

fn augment_subcommands_for_update<'b>(__clap_app: Command) -> Command

Append to Command so it can instantiate self via FromArgMatches::update_from_arg_matches_mut

fn has_subcommand(__clap_name: &str) -> bool

Test whether Self can parse a specific subcommand