Fix S3 Version Type

The Version type of the Concourse-native S3 resource depends on whether the resource is configured as a versioned file, i.e. whether the underlying S3 object is versioned, in which case the type { version_id : Text } is used, or whether the resource is configured as a regular expression which extracts the version from the name of an object, in which case the type { path : Text } is used.

The code had mistakenly assumed that only versioned objects, i.e. { version_id : Text }, were possible. This misunderstanding has been fixed by replacing the Version type with a union that allows either { version_id : Text } or { path : Text }, so that now S3 objects whose version is of type { path : Text } can be pinned.

Add Time resource

Adds Concourse's official Time resource to the list of supported resource types.

Fix task container limits

The Task field container_limits was using the type Integer for cpu and memory when it should have been Natural. This has been fixed.

Fix in_parallel step type

The in_parallel step type incorrectly had the in_parallel_config at the root of the in_parallel object, instead of underneath a field in_parallel. This has now been fixed.

Add support for the rest of the Concourse domain model

Adds support for Steps, Jobs, Tasks, Pipelines, and VarSources - the rest of the Concourse domain model.

Fix: parser error in Git resource type

Fixes an issue with parsing the merge field in the Git plugin.

Change to Resource, ResourceType

Drops the old, dormant implementation for a repository that focuses on
hosting the types / schemas of the various resource types, and allows
the downstream user to construct the type of their Resource and
ResourceType as necessary. This solves the code-reusage problem while
keeping downstream implementations performant.

See the examples in the README.md, the new Resource.dhall, and
the new ResourceType.dhall to understand the new usage pattern.

Add limited support for aggregate, do, try steps

v0.3.0 adds limited support for aggregate, do, and try steps. Jobs and step hooks (e.g. on_success) now take a StepBox, which is a union type over aggregate, do, try, get, task, and put. This permits support for common usecases such as parallel resource fetching, but does not permit arrangements like an aggregate step with a list of try steps.

Add support for Registry Image resource type

v0.2.0 introduces support for the new Registry Image resource type.

Please note that this release is a breaking change. The types and defaults for ResourceType, Resource, and Task's Config's ImageResource have all changed so as to introduce semantics wherein it will now be common (as of Concourse CI v5) to use registry-image in place of docker-image for the types of ResourceTypes.