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v1.4 - upgrade to tzdata 2020f; prelim support for STM32; huge refactoring of tools
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@bxparks bxparks released this 31 Dec 02:46
· 1081 commits to master since this release
v1.4
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  • 1.4 (2020-12-30, TZ DB version 2020f)
    • Add entry for ManualZoneManager in
      examples/MemoryBenchmark. It seems to need
      between 0'ish to 250 bytes of flash.
    • Add support for creating and handling a TimePeriod error object.
      • Add kMaxPeriodSeconds and kInvalidPeriodSeconds constants.
      • Add forError() factory method.
      • Add error checking to toSeconds() and TimePeriod(seconds)
        constructor.
      • Printing an error object prints <Invalid TimePeriod>.
    • Add support for the STM32RTC clock on an STM32 through the
      ace_time::clock::StmRtcClock class.
      • Currently experimental and untested.
      • I do not have any STM32 boards right now, so I cannot test this code.
      • See #39 for details.
      • Thanks to Anatoli Arkhipenko (arkhipenko@).
    • Add convenience factory methods for creating manual TimeZone objects.
      Saves a lot of typing by avoiding the TimeOffset objects:
      • TimeZone::forHours()
      • TimeZone::forMinutes()
      • TimeZone::forHourMinute()
    • Fix incorrect kTypeXxx constants in ZoneManager.h. Fortunately, the
      numerical values overlapped perfectly, so didn't cause any bugs in actual
      code.
    • USER_GUIDE.md
      • Add documentation about accessing the meta information about the
        zonedb and zonedbx databases:
        • zonedb::kTzDatabaseVersion
        • zonedb::kZoneContext.startYear
        • zonedb::kZoneContext.untilYear
        • zonedbx::kTzDatabaseVersion
        • zonedbx::kZoneContext.startYear
        • zonedbx::kZoneContext.untilYear
      • Add documentation that the ZonedDateTime must always be within
        startYear and untilYear. An error object will be returned outside
        of that range.
    • Update TZ Database from 2020d to version 2020f
    • Update examples/AutoBenchmark to allow auto-generation of ASCII tables,
      which allows auto-generation of the README.md file. Update CPU
      benchmarks for v1.4 from v0.8, since it is much easier to update these
      numbers now. No significant performance change from v0.8.
    • Huge amounts of Python tools refactoring
      • Convert all remaining % string formatting to f-strings.
      • Convert all internal camelCase dictionary keys to snake_case for
        consistency.
      • Finish adding typing info to pass strict mypy checking.
      • Centralize most typing info into data_types/at_types.py.
      • Move various global constants into data_types/at_types.py.
      • Migrate most Arduino specific transformations into artransformer.py.
      • Move offsetCode, deltaCode, atTimeCode, untilTimeCode, rulesDeltaCode
        calculations and various bit-packing rules (e.g. at_time_modifier,
        ntil_time_modifier) into artransformer.py instead of the
        argenerator.py.
      • Include general and platform specific transformations in
        the JSON (zonedb.json or zonedbx.json) files.
      • Make argenerator.py use only the JSON output instead of making
        its own transformations.
      • Produce both LettersMap and LettersPerPolicy in the JSON file.
      • Unify CommentsCollection into CommentsMap using an Iterable
        in Dict[str, Iterable[str]].
      • Unify all transformer results into TransformerResult.
      • Check hash collisions for Link names, in addition to Zone names.
      • Rename test data generator executables to generate_data.* or some
        variations of it, to avoid confusion with unit tests which are often
        named test_xxx.py.
      • Add --input_dir flag to generate_data.cpp to allow the TZ database
        directory to be specified.
      • Add --ignore_buf_size_too_big to workaround a mismatch between
        the estimated Transition buffer size calculated by bufestimator.py
        and the actual buffer size required by ExtendedZoneProcessor.cpp.
      • Add --skip_checkout flag to tzcompiler.py to allow local
        modifications of the TZ database files to be used for code generation.
      • Add --delta_granularity flag to transformer.py to decouple it
        from --offset_granularity, so that the SAVE and RULES
        granularity can be controlled independently from the STDOFF
        granularity. The --until_at_granularity continues to control AT
        and UNTIL.
      • Make output of zinfo.py --debug to be more readable.
      • Remove --generate_zone_strings from tzcompiler.py which removes
        the ability to create zone_strings.{h,cpp}. The storage and
        optimization of strings are implementation details which seem to be
        better handled later in the pipeline.
      • Increase the range of zonedbpy database from the default
        [2000,2050) to [1974, 2050) to allow zinfo.py to handle a larger
        range of queries.
      • Merge --action and --language flags for tzcompiler.py; only
        --language flag needed right now.
      • Rename RulesMap to PoliciesMap, rules_map to policies_map,
        rule_name to policy_name etc. For consistency with ZonesMap,
        zones_map, and zone_name.
      • Add ZoneId hashes to JSON output files.
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