# dhall-to-cabal change log
## 1.3.3.0 -- 2019-05-15
* All constructors that previously took an empty record now use the
new nullary syntax instead. This is a breaking change for user code.
For example, instead of `types.Compiler.GHC {=}`, now you just write
`types.Compiler.GHC`.
* Use `dhall` version 1.23.0.
* Educated `--print-type` about `Scope` and `ModuleRenaming`.
* Fix `cabal-to-dhall` output for unknown licenses using `cabal` spec
version below `2.0`. Now it uses values of type `License.Unknown Text`
for them.
* Improved `--print-type` and `--print-default` output to use
multi-binding `let`.
## 1.3.2.0 -- 2019-02-12
* 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`.
## 1.3.1.0 -- 2018-10-23
* 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.
## 1.3.0.1 -- 2018-08-10
### Distribution Changes
* Include all files necessary to run tests.
## 1.3.0.0 -- 2018-07-28
### Breaking API Changes
* `DhallToCabal.dhallToCabal` now takes an `InputSettings` from
`dhall` as its first argument.
### Functional Changes
* `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)
## 1.2.0.0 -- 2018-07-05
### Breaking API Changes
* 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`.
### Functional Changes
* `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`.
## Other Changes
* 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).
## 1.1.0.0 -- 2018-06-03
### Breaking Changes
* The type of DhallToCabal.license has changed to
`Dhall.Type (Either SPDX.License Cabal.License)` to accomodate Cabal 2.2.
### Other Changes
* 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.
## 1.0.0.1 -- 2018-03-25
Small packaging only tweaks:
* Missing README.md
* Missing author
The irony of this change is not lost on me.
## 1.0.0 -- 2018-03-25
First release!