Changelog for dhall-to-cabal-1.3.2.0

dhall-to-cabal change log

Use dhall version 1.20.1.
prelude.dhall no longer provides types (as this isn't supported in Dhall 1.20.1). Instead, there is now a new types.dhall file.
dhall-to-cabal now accepts--output-stdout, --output-dir-cwd DIR, and --output-dir-input DIR flags control the destination of the generated .cabal file. --output-dir-cwd interprets its argument relative to the current working directory and --output-dir-input interprets its argument relative to the input file.

The default has been changed to --output-dir-input ., which writes to the same directory as the input file; previously it corresponded to --output-stdout.

Allow Cabal version 2.4.0.0. There have been consequent changes to the extensions, compilers and licenses recognised.
Allow dhall version 1.18.
dhall-to-cabal and cabal-to-dhall now understand the mixins field properly.

On the Dhall side, types.ModuleRenaming has changed significantly: it is now a union.

prelude.types.ModuleRenaming has been added for convenient access to the new constructors.
Fix issue with alpha-normalized expressions. This was identified in issue #124 and fixed in issue #126.

DhallToCabal.dhallToCabal now takes an InputSettings from dhall as its first argument.

dhall-to-cabal has a new --print-default TYPE flag.
When reading from a file, dhall-to-cabal now interprets imports as being relative to that file, rather than the current working directory. (#114)

Remove orphan Dhall.Core.Inject instances for [Char] and CompilerFlavor.
CabalToDhall.cabalToDhall is now a pure function that accepts a GenericPackageDescription. A new convenience function has been added to CabalToDhall, parseGenericPackageDescriptionThrows.

os conditions where the operating system's name was not recognised (e.g., os(multics)) were crashing cabal-to-dhall. They now work as expected.
dhall-to-cabal and cabal-to-dhall now respond to --version.
The dhall subdirectory has been reorganised so that things that are not types are not in the types subdirectory. Specifically, dhall/types/Version/v.dhall, all of dhall/types/VersionRange/*.dhall and the operations (i.e., the enumerations LicenseId.dhall and LicenseExceptionId.dhall) from dhall/types/SPDX/*.dhall have been moved to, respectively, dhall/Version/v.dhall, dhall/VersionRange/*.dhall, and dhall/SPDX/*.dhall. In addition, the files have been renamed as appropriate to reflect the name that they are exported from the prelude as; in practice, this means that they have gone from TitleCase to camelCase.

Code that only imports prelude.dhall and types.dhall is unaffected by this change.
prelude.defaults.Package.license is now AllRightsReserved.
dhall-to-cabal now maps AllRightsReserved to SPDX.NONE when cabal-version is at least 2.2.
cabal-to-dhall will now generate more compact .dhall files by using defaults.
The default build-type is now omission, to use Cabal 2.2's inference, and the default cabal-version has been bumped to 2.2.
Export prelude.types.Scopes.

Bump upper-bounds for base, containers and contravariant. This project can build on GHC 8.6 (though will need --allow-newer for Cabal until this is official released).

The type of DhallToCabal.license has changed to Dhall.Type (Either SPDX.License Cabal.License) to accomodate Cabal 2.2.

Increase upper-bound of base to allow 4.11.
Increase upper-bound of tasty to allow 1.1.
Switch to Dhall 1.14.0.
dhall-to-cabal: Fix tracking which branches are already true or false in conditionals. Dhall expressions with lots of conditions previously produced Cabal files that did not correctly match the requested conditions. See https://github.com/dhall-lang/dhall-to-cabal/pull/56, https://github.com/dhall-lang/dhall-to-cabal/issues/53 and https://github.com/dhall-lang/dhall-to-cabal/issues/55 for more information.

Thank you to @jneira and @quasicomputational for helping identify and fix this bug.
cabal-to-dhall: Rewrite conditional handling to avoid hangs with complicated ones. See https://github.com/dhall-lang/dhall-to-cabal/pull/54 and linked issues.
Added a warning to generated .cabal files against hand-editing.
cabal-to-dhall now pretty prints the resulting Dhall.
The signature of CabalToDhall.cabalToDhall has changed: it now takes the location of the prelude.dhall and types.dhall to import as a parameter.
Upgrade to Cabal 2.2. This introduces SPDX license identifiers and Dhall functionality to manipulate them; see <golden-tests/dhall-to-cabal/SPDX.dhall> for a (convoluted) demonstration.
prelude.defaults.Executable has lost its main-is field, as it makes little sense to have an executable without it.
--print-type now omits the lengthy definition of Extension, instead importing it from the prelude. --self-contained is a new switch to disable this behaviour.

Small packaging only tweaks:

The irony of this change is not lost on me.

First release!