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VSS-Tools Changelog

The intention of this document is to highlight major changes in VSS-Tools. It shall include all changes that affect backward compatibility or may be important to know when upgrading from one version to another. It includes changes that are included in released version, but also changes planned for upcoming releases.

This document only contain changes introduced in VSS-Tools 3.0 or later!

VSS-Tools 3.0

Complete release notes including VSS-Tools changes

Overlay Support

Overlays introduced to allow customization of VSS. See documentation. See vss-tools documentation on how to include overlays when transforming VSS.

VSS-Tools 3.1 (Latest Release)

Complete release notes including VSS-Tools changes

Struct Support

Support for defining signals with struct type added. For VSS 3.1 as experimental feature only supported by JSON exporter. For more information see vspec2x documentation

Change in UUID handling.

As of today most tools in this repository add UUIDs to generated output by default. An parameter --no-uuid exists to suppress output of UUIDs. It has been decided in VSS-project to change default behavior so that default is to not generate UUIDs. The change will be gradually introduced over multiple releases.

For VSS-Tools 3.1 the following behavior is implemented:

  • Generation of UUIDs is still default.
  • A new parameter --uuid has been introduced to explicitly request that UUIDs shall be generated.
  • If neither --uuid nor --no-uuid is used a warning will be given informing that default behavior will change in the future.
  • If both --uuid and --no-uuid is used an error will be given.

The tools vspec2c and vspec2ocf are now obsolete

The tools vspec2c and vspec2ocf in the contrib folder has been moved to the obsolete folder. The background is that they have been broken for a long period and no one has volunteered to fix them.

Support for specifying unit files

Add new parameter -u has been introduced, see documentation. Use of default unit file deprecated. At the same time a unit file has been added to VSS, allowing VSS tooling to control their own units rather than relying on units in VSS-tools. Default behavior for units have changed, if there is a file units.yaml in the same directory as the *.vspec file it will be used, only if not existing config.yaml in vss-tools will be used.

VSS-Tools 4.0

Struct support feature

In VSS-Tools 4.0 structs are supported in the following exporters:

  • JSON
  • Yaml
  • CSV
  • Protobuf

Other exporters do not support structs.

It is possible to use specify muliple type files with -vt, and to use types in combination with overlays. For more information see vspec2x documentation

Change in UUID handling.

For VSS-Tools 4.0 the following behavior is implemented:

  • By default no UUIDs are generated.
  • The parameter --no-uuid is now considered deprecated, and a warning is given if --no-uuid is used.
  • No warning is given if neither --uuid nor --no-uuid is used.
  • If both --uuid and --no-uuid is used an error is given.

Default unit file removed from vss-tools

The default unit file config.yaml has been removed from VSS-tools. This means that either a file units.yaml in the same directory as the *.vspec file must exist, or a unit file must be specified by -u. From now on, if new units are needed for the VSS catalog they shall be added to the VSS catalog file.

Implemented changes, to be released as part of VSS-Tools 5.0

Struct support in vspec2ddsidl

The vspec2ddsidl tool now supports structs

Jsonschema tool added

A new tool vspec2jsonschema has been added

Id generator tool added

A new tool vspec2id has been added. It can be used to generate and maintain unique identifiers for signals.

Unit files and quantity files

A new syntax has been introduced for unit files. The old syntax is still supported. Domains have now been renamed to Quantities. In addition to this a quantity file format has been defined, and the tool will inform if units refer to a quantity that has not been defined an information message will be printed.

Change in UUID handling.

As the tool vspec2id has been added the VSS-project has agreed that there no longer is a need to support the legacy uuid functionality.

  • The parameter --no-uuid is now removed, and an error is given if --no-uuid is used.
  • The parameter --uuid is now deprecated.

Planned changes for VSS-Tools 6.0

Change in UUID handling.

As the tool vspec2id has been added the VSS-project has agreed that there no longer is a need to support the legacy uuid functionality.

  • The parameter --uuid is now removed.