diff options
authorGabrielGonzalez <>2019-12-06 03:43:00 (GMT)
committerhdiff <>2019-12-06 03:43:00 (GMT)
commitd8076bac734e41e4e4abf6095a21537cbdca1912 (patch)
parent139a0c1b5efc0f558c1a071920284ff79c8cd9d5 (diff)
-rw-r--r--LICENSE (renamed from LICENSE.BSD3)3
-rw-r--r--src/Dhall/JSON/Yaml.hs (renamed from src/Dhall/Yaml.hs)71
18 files changed, 192 insertions, 1199 deletions
diff --git a/ b/
index 7548d87..a81ffe9 100644
--- a/
+++ b/
@@ -1,4 +1,32 @@
-Next version
+* BREAKING CHANGE: [Move `HsYAML` code to a new `dhall-yaml` package](
+ * This package is now fully BSD-licensed (both for the JSON and YAML
+ utilities)
+ * The GPL-licensed YAML utilities are now provided as part of the
+ `dhall-yaml` package
+ * Note that this package still provides `dhall-to-yaml` and the `dhall-yaml`
+ package provides a separate `dhall-to-yaml-ng` executable
+ * This is a breaking change in the following respects:
+ * The YAML-related modules in this package were renamed
+ * This package no longer accepts a `-fgpl` cabal configure flag
+ * This package no longer provides the `yaml-to-dhall` executable (which
+ now resides within the `dhall-yaml` package)
+* [BREAKING CHANGE: Rename some options of `dhall-to-{json,yaml}` to more consistent ones](
+ * rename `--omitEmpty` to `--omit-empty`
+ * rename `--preserveNull` to `--preserve-null`
+ * rename `--noMaps` to `--no-maps`
+ * drop `--omitNull` as redundant because of `--preserve-null` (see below)
+* [BUG FIX: Handle empty maps correctly](
+ * `dhall-to-{json,yaml}` now correctly translate empty Dhall maps
+ to empty JSON dictionaries
+* [Add `Dhall.JSON.defaultConversion`](
+* [Don't normalize schema before type-checking](
+ * This improves the error messages for `{json,yaml}-to-dhall`
+* [Fix `dhall-to-yaml` to quote special strings](
+* [Make some of CLI options for `dhall-json` more consistent](
* [BREAKING CHANGE: Enable `--pretty` by default for `dhall-to-json`](
* [BREAKING CHANGE: Enable `--omitNull` by default for `dhall-to-{json,yaml}`](
diff --git a/LICENSE.BSD3 b/LICENSE
index 2705944..d240dd1 100644
@@ -1,6 +1,3 @@
-The following license applies to this package when built without the
-`-fgpl` Cabal configure flag
Copyright (c) 2018 Gabriel Gonzalez
All rights reserved.
diff --git a/LICENSE.GPLv3 b/LICENSE.GPLv3
deleted file mode 100644
index fa5cb3a..0000000
+++ /dev/null
@@ -1,678 +0,0 @@
-The following license applies to this package when built with the
-`-fgpl` Cabal configure flag, including the `yaml-to-dhall` executable,
-which cannot be built without that flag.
- Version 3, 29 June 2007
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-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
- Later license versions may give you additional or different
-permissions. However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
- 15. Disclaimer of Warranty.
- 16. Limitation of Liability.
- 17. Interpretation of Sections 15 and 16.
- If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
- How to Apply These Terms to Your New Programs
- If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
- To do so, attach the following notices to the program. It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
- <one line to give the program's name and a brief idea of what it does.>
- Copyright (C) <year> <name of author>
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <>.
-Also add information on how to contact you by electronic and paper mail.
- If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
- <program> Copyright (C) <year> <name of author>
- This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
- This is free software, and you are welcome to redistribute it
- under certain conditions; type `show c' for details.
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License. Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
- You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
- The GNU General Public License does not permit incorporating your program
-into proprietary programs. If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library. If this is what you want to do, use the GNU Lesser General
-Public License instead of this License. But first, please read
diff --git a/dhall-json.cabal b/dhall-json.cabal
index 610206a..c790da2 100644
--- a/dhall-json.cabal
+++ b/dhall-json.cabal
@@ -1,10 +1,10 @@
Name: dhall-json
-Version: 1.5.0
+Version: 1.6.0
Cabal-Version: >=
Build-Type: Simple
Tested-With: GHC == 7.10.3, GHC == 8.4.3, GHC == 8.6.1
License: BSD3
+License-File: LICENSE
Copyright: 2017 Gabriel Gonzalez
Author: Gabriel Gonzalez
@@ -26,31 +26,25 @@ Extra-Source-Files:
- tasty/data/*.txt
- tasty/data/*.yaml
Source-Repository head
Type: git
-Flag gpl
- Description: Use GPL-licensed components like HsYAML, and enable yaml-to-dhall binary
- Default: False
- Manual: True
Hs-Source-Dirs: src
base >= && < 5 ,
aeson >= && < 1.5 ,
aeson-pretty < 0.9 ,
+ aeson-yaml >= 1.0.5 && < 1.1 ,
bytestring < 0.11,
containers ,
- dhall >= 1.27.0 && < 1.28,
+ dhall >= 1.28.0 && < 1.29,
exceptions >= 0.8.3 && < 0.11,
filepath < 1.5 ,
optparse-applicative >= && < 0.16,
- prettyprinter >= && < 1.4 ,
+ prettyprinter >= 1.5.1 && < 1.6 ,
scientific >= && < 0.4 ,
text >= && < 1.3 ,
unordered-containers < 0.3 ,
@@ -58,21 +52,11 @@ Library
- Dhall.Yaml
- if flag(gpl)
- Exposed-Modules:
- Dhall.YamlToDhall
+ Dhall.JSON.Yaml
+ Dhall.DhallToYaml.Main
GHC-Options: -Wall
- if flag(gpl)
- CPP-Options: -DGPL
- Build-Depends:
- HsYAML >= 0.2 && < 0.3,
- HsYAML-aeson >= 0.2 && < 0.3
- else
- Build-Depends:
- aeson-yaml >= 1.0.2 && < 1.1
Executable dhall-to-json
Hs-Source-Dirs: dhall-to-json
@@ -94,13 +78,8 @@ Executable dhall-to-yaml
Hs-Source-Dirs: dhall-to-yaml
Main-Is: Main.hs
- base ,
- aeson ,
- bytestring < 0.11,
- dhall ,
- dhall-json ,
- optparse-applicative ,
- text
+ base ,
+ dhall-json
GHC-Options: -Wall
@@ -126,35 +105,12 @@ Executable json-to-dhall
GHC-Options: -Wall
-Executable yaml-to-dhall
- if !flag(gpl)
- Buildable: False
- Hs-Source-Dirs: yaml-to-dhall
- Main-Is: Main.hs
- Build-Depends:
- base ,
- aeson ,
- ansi-terminal >= && < 0.11,
- bytestring < 0.11,
- dhall ,
- dhall-json ,
- exceptions >= 0.8.3 && < 0.11,
- optparse-applicative ,
- prettyprinter ,
- prettyprinter-ansi-terminal >= 1.1.1 && < 1.2 ,
- text < 1.3
- if !impl(ghc >= 8.0) && !impl(eta >= 0.8.4)
- Build-Depends: semigroups == 0.18.*
- Other-Modules:
- Paths_dhall_json
- GHC-Options: -Wall
Test-Suite tasty
Type: exitcode-stdio-1.0
Hs-Source-Dirs: tasty
Main-Is: Main.hs
- base,
+ base ,
aeson ,
bytestring ,
dhall ,
@@ -162,3 +118,4 @@ Test-Suite tasty
tasty < 1.3,
text ,
tasty-hunit >= 0.2
+ GHC-Options: -Wall
diff --git a/dhall-to-yaml/Main.hs b/dhall-to-yaml/Main.hs
index 001b7e6..6631b46 100644
--- a/dhall-to-yaml/Main.hs
+++ b/dhall-to-yaml/Main.hs
@@ -1,101 +1,8 @@
-{-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE RecordWildCards #-}
module Main where
-import Control.Applicative (optional, (<|>))
-import Control.Exception (SomeException)
-import Data.Monoid ((<>))
-import Dhall.JSON (parsePreservationAndOmission, parseConversion)
-import Dhall.Yaml (Options(..), dhallToYaml, parseDocuments, parseQuoted)
-import Options.Applicative (Parser, ParserInfo)
-import qualified Control.Exception
-import qualified Data.ByteString
-import qualified Data.Text.IO as Text.IO
-import qualified Data.Version
-import qualified GHC.IO.Encoding
-import qualified Options.Applicative as Options
-import qualified Paths_dhall_json as Meta
-import qualified System.Exit
-import qualified System.IO
-parseOptions :: Parser (Maybe Options)
-parseOptions =
- Just
- <$> ( Options
- <$> parseExplain
- <*> Dhall.JSON.parsePreservationAndOmission
- <*> parseDocuments
- <*> parseQuoted
- <*> Dhall.JSON.parseConversion
- <*> optional parseFile
- <*> optional parseOutput
- )
- <|> parseVersion
- where
- parseExplain =
- Options.switch
- ( Options.long "explain"
- <> "Explain error messages in detail"
- )
- parseFile =
- Options.strOption
- ( Options.long "file"
- <> "Read expression from a file instead of standard input"
- <> Options.metavar "FILE"
- )
- parseVersion =
- Options.flag'
- Nothing
- ( Options.long "version"
- <> "Display version"
- )
- parseOutput =
- Options.strOption
- ( Options.long "output"
- <> "Write YAML to a file instead of standard output"
- <> Options.metavar "FILE"
- )
-parserInfo :: ParserInfo (Maybe Options)
-parserInfo =
- (Options.helper <*> parseOptions)
- ( Options.fullDesc
- <> Options.progDesc "Compile Dhall to YAML"
- )
+import qualified Dhall.DhallToYaml.Main
+import qualified Dhall.JSON.Yaml
+import qualified Paths_dhall_json as Meta
main :: IO ()
-main = do
- GHC.IO.Encoding.setLocaleEncoding GHC.IO.Encoding.utf8
- maybeOptions <- Options.execParser parserInfo
- case maybeOptions of
- Nothing -> do
- putStrLn (Data.Version.showVersion Meta.version)
- Just options@(Options {..}) -> do
- handle $ do
- contents <- case file of
- Nothing -> Text.IO.getContents
- Just path -> Text.IO.readFile path
- let write =
- case output of
- Nothing -> Data.ByteString.putStr
- Just file_ -> Data.ByteString.writeFile file_
- write =<< dhallToYaml options file contents
-handle :: IO a -> IO a
-handle = Control.Exception.handle handler
- where
- handler :: SomeException -> IO a
- handler e = do
- System.IO.hPutStrLn System.IO.stderr ""
- System.IO.hPrint System.IO.stderr e
- System.Exit.exitFailure
+main = Dhall.DhallToYaml.Main.main Meta.version Dhall.JSON.Yaml.dhallToYaml
diff --git a/json-to-dhall/Main.hs b/json-to-dhall/Main.hs
index 07d790a..4eba5d6 100644
--- a/json-to-dhall/Main.hs
+++ b/json-to-dhall/Main.hs
@@ -146,7 +146,7 @@ main = do
let document = Dhall.Pretty.prettyCharacterSet characterSet result
- let stream = Pretty.layoutSmart Dhall.Pretty.layoutOpts document
+ let stream = Dhall.Pretty.layout document
case output of
Nothing -> do
diff --git a/src/Dhall/DhallToYaml/Main.hs b/src/Dhall/DhallToYaml/Main.hs
new file mode 100644
index 0000000..0544b48
--- /dev/null
+++ b/src/Dhall/DhallToYaml/Main.hs
@@ -0,0 +1,108 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RecordWildCards #-}
+{- Shared code for the @dhall-to-yaml@ and @dhall-to-yaml-ng@ executables
+module Dhall.DhallToYaml.Main (main) where
+import Control.Applicative (optional, (<|>))
+import Control.Exception (SomeException)
+import Data.ByteString (ByteString)
+import Data.Monoid ((<>))
+import Data.Text (Text)
+import Dhall.JSON (parsePreservationAndOmission, parseConversion)
+import Dhall.JSON.Yaml (Options(..), parseDocuments, parseQuoted)
+import Options.Applicative (Parser, ParserInfo)
+import qualified Control.Exception
+import qualified Data.ByteString
+import qualified Data.Text.IO as Text.IO
+import qualified Data.Version
+import qualified GHC.IO.Encoding
+import qualified Options.Applicative as Options
+import qualified System.Exit
+import qualified System.IO
+parseOptions :: Parser (Maybe Options)
+parseOptions =
+ Just
+ <$> ( Options
+ <$> parseExplain
+ <*> Dhall.JSON.parsePreservationAndOmission
+ <*> parseDocuments
+ <*> parseQuoted
+ <*> Dhall.JSON.parseConversion
+ <*> optional parseFile
+ <*> optional parseOutput
+ )
+ <|> parseVersion
+ where
+ parseExplain =
+ Options.switch
+ ( Options.long "explain"
+ <> "Explain error messages in detail"
+ )
+ parseFile =
+ Options.strOption
+ ( Options.long "file"
+ <> "Read expression from a file instead of standard input"
+ <> Options.metavar "FILE"
+ )
+ parseVersion =
+ Options.flag'
+ Nothing
+ ( Options.long "version"
+ <> "Display version"
+ )
+ parseOutput =
+ Options.strOption
+ ( Options.long "output"
+ <> "Write YAML to a file instead of standard output"
+ <> Options.metavar "FILE"
+ )
+parserInfo :: ParserInfo (Maybe Options)
+parserInfo =
+ (Options.helper <*> parseOptions)
+ ( Options.fullDesc
+ <> Options.progDesc "Compile Dhall to YAML"
+ )
+ :: Data.Version.Version
+ -> (Options -> Maybe FilePath -> Text -> IO ByteString)
+ -> IO ()
+main version dhallToYaml = do
+ GHC.IO.Encoding.setLocaleEncoding GHC.IO.Encoding.utf8
+ maybeOptions <- Options.execParser parserInfo
+ case maybeOptions of
+ Nothing -> do
+ putStrLn (Data.Version.showVersion version)
+ Just options@(Options {..}) -> do
+ handle $ do
+ contents <- case file of
+ Nothing -> Text.IO.getContents
+ Just path -> Text.IO.readFile path
+ let write =
+ case output of
+ Nothing -> Data.ByteString.putStr
+ Just file_ -> Data.ByteString.writeFile file_
+ write =<< dhallToYaml options file contents
+handle :: IO a -> IO a
+handle = Control.Exception.handle handler
+ where
+ handler :: SomeException -> IO a
+ handler e = do
+ System.IO.hPutStrLn System.IO.stderr ""
+ System.IO.hPrint System.IO.stderr e
+ System.Exit.exitFailure
diff --git a/src/Dhall/JSON.hs b/src/Dhall/JSON.hs
index 09d2f85..20de988 100644
--- a/src/Dhall/JSON.hs
+++ b/src/Dhall/JSON.hs
@@ -199,9 +199,9 @@ module Dhall.JSON (
, omitNull
, omitEmpty
- , parseOmission
, parsePreservationAndOmission
, Conversion(..)
+ , defaultConversion
, convertToHomogeneousMaps
, parseConversion
, SpecialDoubleMode(..)
@@ -235,7 +235,6 @@ import qualified Data.List
import qualified Data.Map
import qualified Data.Ord
import qualified Data.Text
-import qualified Data.Text.Prettyprint.Doc as Pretty
import qualified Data.Text.Prettyprint.Doc.Render.Text as Pretty
import qualified Data.Vector as Vector
import qualified Dhall.Core as Core
@@ -394,8 +393,7 @@ _ERROR :: Data.Text.Text
_ERROR = Dhall.Util._ERROR
insert :: Pretty a => a -> Text
-insert =
- Pretty.renderStrict . Pretty.layoutPretty Dhall.Pretty.layoutOpts . Dhall.Util.insert
+insert = Pretty.renderStrict . Dhall.Pretty.layout . Dhall.Util.insert
instance Exception CompileError
@@ -609,7 +607,7 @@ omitEmpty (Object object) =
omitEmpty (Array array) =
if null elems then Null else Array elems
- elems = (fmap omitEmpty array)
+ elems = Vector.filter (/= Null) (fmap omitEmpty array)
omitEmpty (String string) =
String string
omitEmpty (Number number) =
@@ -623,16 +621,10 @@ omitEmpty Null =
parseOmission :: Parser (Value -> Value)
parseOmission =
- omitNull
- ( Options.Applicative.long "omitNull"
- <> "Omit record fields that are null"
- )
- <|> Options.Applicative.flag'
- ( Options.Applicative.long "omitEmpty"
+ ( Options.Applicative.long "omit-empty"
<> "Omit record fields that are null or empty records"
- <|> pure id
-- | Parser for command-line options related to preserving null fields.
parseNullPreservation :: Parser (Value -> Value)
@@ -640,13 +632,13 @@ parseNullPreservation =
- ( Options.Applicative.long "preserveNull"
+ ( Options.Applicative.long "preserve-null"
<> "Preserve record fields that are null"
-- | Combines parsers for command-line options related to preserving & omitting null fields.
parsePreservationAndOmission :: Parser (Value -> Value)
-parsePreservationAndOmission = parseNullPreservation <|> parseOmission <|> pure id
+parsePreservationAndOmission = parseOmission <|> parseNullPreservation
{-| Specify whether or not to convert association lists of type
@List { mapKey: Text, mapValue : v }@ to records
@@ -655,6 +647,12 @@ data Conversion
= NoConversion
| Conversion { mapKey :: Text, mapValue :: Text }
+defaultConversion :: Conversion
+defaultConversion = Conversion
+ { mapKey = "mapKey"
+ , mapValue = "mapValue"
+ }
{-| Convert association lists to homogeneous maps
This converts an association list of the form:
@@ -794,6 +792,12 @@ convertToHomogeneousMaps (Conversion {..}) e0 = loop (Core.normalize e0)
Core.IntegerLit a ->
Core.IntegerLit a
+ Core.IntegerClamp ->
+ Core.IntegerClamp
+ Core.IntegerNegate ->
+ Core.IntegerNegate
Core.IntegerShow ->
@@ -861,7 +865,7 @@ convertToHomogeneousMaps (Conversion {..}) e0 = loop (Core.normalize e0)
case elements of
[] ->
case a of
- Just (Core.Record m) -> do
+ Just (Core.App Core.List (Core.Record m)) -> do
guard (Foldable.length m == 2)
guard (Dhall.Map.member mapKey m)
guard (Dhall.Map.member mapValue m)
@@ -1038,7 +1042,7 @@ parseConversion =
noConversion =
- ( Options.Applicative.long "noMaps"
+ ( Options.Applicative.long "no-maps"
<> "Disable conversion of association lists to homogeneous maps"
diff --git a/src/Dhall/Yaml.hs b/src/Dhall/JSON/Yaml.hs
index 25f6820..cdd70c1 100644
--- a/src/Dhall/Yaml.hs
+++ b/src/Dhall/JSON/Yaml.hs
@@ -2,36 +2,33 @@
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
-module Dhall.Yaml
+{-| Convert Dhall to YAML via JSON
+ Since JSON is only a subset of YAML, the functionality offered here is more
+ limited than what the @dhall-yaml@ package can offer.
+module Dhall.JSON.Yaml
( Options(..)
, parseDocuments
, parseQuoted
, defaultOptions
- , dhallToYaml ) where
+ , dhallToYaml
+ , jsonToYaml
+ ) where
import Data.ByteString (ByteString)
import Data.Monoid ((<>))
import Data.Text (Text)
-import Dhall.JSON (Conversion(..), SpecialDoubleMode(..), codeToValue)
+import Dhall.JSON (Conversion(..), SpecialDoubleMode(..))
import Options.Applicative (Parser)
-import Data.ByteString.Lazy (toStrict)
import qualified Data.Aeson
-import qualified Data.ByteString
+import qualified Data.Aeson.Yaml
+import qualified Data.ByteString.Lazy
import qualified Data.Vector
import qualified Dhall
+import qualified Dhall.JSON
import qualified Options.Applicative
-#if defined(GPL)
-import qualified Data.YAML.Aeson
-import qualified Data.YAML as Y
-import qualified Data.YAML.Event as YE
-import qualified Data.YAML.Token as YT
-import qualified Data.YAML.Schema as YS
-import qualified Data.Text as Text
-import qualified Data.Aeson.Yaml
-import qualified Data.ByteString.Lazy
data Options = Options
{ explain :: Bool
@@ -49,7 +46,7 @@ defaultOptions =
, omission = id
, documents = False
, quoted = False
- , conversion = NoConversion
+ , conversion = Dhall.JSON.defaultConversion
, file = Nothing
, output = Nothing
@@ -80,7 +77,7 @@ dhallToYaml Options{..} mFilePath code = do
let explaining = if explain then Dhall.detailed else id
- json <- omission <$> explaining (codeToValue conversion UseYAMLEncoding mFilePath code)
+ json <- omission <$> explaining (Dhall.JSON.codeToValue conversion UseYAMLEncoding mFilePath code)
return $ jsonToYaml json documents quoted
@@ -91,43 +88,6 @@ jsonToYaml
-> Bool
-> ByteString
jsonToYaml json documents quoted =
-#if defined(GPL)
- case (documents, json) of
- (True, Data.Aeson.Array elems)
- -> Data.ByteString.intercalate "\n---\n"
- $ fmap (Data.ByteString.Lazy.toStrict. (Data.YAML.Aeson.encodeValue' schemaEncoder YT.UTF8). (:[]))
- $ Data.Vector.toList elems
- _ -> Data.ByteString.Lazy.toStrict (Data.YAML.Aeson.encodeValue' schemaEncoder YT.UTF8 [json])
- where
- defaultSchemaEncoder = YS.setScalarStyle style Y.coreSchemaEncoder
- defaultEncodeStr s = case () of
- ()
- | "\n" `Text.isInfixOf` s -> Right (YE.untagged, YE.Literal YE.Clip YE.IndentAuto, s)
- | YS.isAmbiguous Y.coreSchemaResolver s -> Right (YE.untagged, YE.SingleQuoted, s)
- | otherwise -> Right (YE.untagged, YE.Plain, s)
- style s = case s of
- Y.SNull -> Right (YE.untagged, YE.Plain, "null")
- Y.SBool bool -> Right (YE.untagged, YE.Plain, YS.encodeBool bool)
- Y.SFloat double -> Right (YE.untagged, YE.Plain, YS.encodeDouble double)
- Y.SInt int -> Right (YE.untagged, YE.Plain, YS.encodeInt int)
- Y.SStr text -> defaultEncodeStr text
- Y.SUnknown t v -> Right (t, YE.SingleQuoted, v)
- customStyle (Y.SStr s) = case () of
- ()
- | "\n" `Text.isInfixOf` s -> Right (YE.untagged, YE.Literal YE.Clip YE.IndentAuto, s)
- | otherwise -> Right (YE.untagged, YE.SingleQuoted, s)
- customStyle scalar = (YS.schemaEncoderScalar defaultSchemaEncoder) scalar
- customSchemaEncoder = YS.setScalarStyle customStyle defaultSchemaEncoder
- schemaEncoder = if quoted
- then customSchemaEncoder
- else defaultSchemaEncoder
Data.ByteString.Lazy.toStrict $ case (documents, json) of
(True, Data.Aeson.Array elems)
-> (if quoted
@@ -138,4 +98,3 @@ jsonToYaml json documents quoted =
then Data.Aeson.Yaml.encodeQuoted
else Data.Aeson.Yaml.encode
) json
diff --git a/src/Dhall/JSONToDhall.hs b/src/Dhall/JSONToDhall.hs
index 9e528c9..fed224e 100644
--- a/src/Dhall/JSONToDhall.hs
+++ b/src/Dhall/JSONToDhall.hs
@@ -330,7 +330,7 @@ defaultConversion = Conversion
-- | The 'Expr' type concretization used throughout this module
type ExprX = Expr Src Void
--- | Parse schema code to a valid Dhall expression and check that its type is actually Type
+-- | Parse schema code and resolve imports
resolveSchemaExpr :: Text -- ^ type code (schema)
-> IO ExprX
resolveSchemaExpr code = do
@@ -338,7 +338,7 @@ resolveSchemaExpr code = do
case Dhall.Parser.exprFromText "\n\ESC[1;31mSCHEMA\ESC[0m" code of
Left err -> throwIO err
Right parsedExpression -> return parsedExpression
- D.normalize <$> Dhall.Import.load parsedExpression -- IO
+ Dhall.Import.load parsedExpression
{-| Check that the Dhall type expression actually has type 'Type'
>>> :set -XOverloadedStrings
diff --git a/src/Dhall/YamlToDhall.hs b/src/Dhall/YamlToDhall.hs
deleted file mode 100644
index 582f3f6..0000000
--- a/src/Dhall/YamlToDhall.hs
+++ /dev/null
@@ -1,68 +0,0 @@
-{-# LANGUAGE RecordWildCards #-}
-module Dhall.YamlToDhall
- ( Options(..)
- , defaultOptions
- , YAMLCompileError(..)
- , dhallFromYaml
- ) where
-import Control.Exception (Exception, throwIO)
-import Data.Aeson (Value)
-import Data.ByteString (ByteString)
-import qualified Data.ByteString.Char8 as BS8
-import Data.Text (Text)
-import Data.Void (Void)
-import qualified Data.YAML.Aeson
-import Dhall.Core (Expr)
-import Dhall.JSONToDhall
- ( CompileError(..)
- , Conversion(..)
- , defaultConversion
- , dhallFromJSON
- , resolveSchemaExpr
- , showCompileError
- , typeCheckSchemaExpr
- )
-import Dhall.Src (Src)
--- | Options to parametrize conversion
-data Options = Options
- { schema :: Text
- , conversion :: Conversion
- } deriving Show
-defaultOptions :: Text -> Options
-defaultOptions schema = Options {..}
- where conversion = defaultConversion
-data YAMLCompileError = YAMLCompileError CompileError
-instance Show YAMLCompileError where
- show (YAMLCompileError e) = showCompileError "YAML" showYaml e
-instance Exception YAMLCompileError
--- | Transform yaml representation into dhall
-dhallFromYaml :: Options -> ByteString -> IO (Expr Src Void)
-dhallFromYaml Options{..} yaml = do
- value <- either (throwIO . userError) pure (yamlToJson yaml)
- expr <- typeCheckSchemaExpr YAMLCompileError =<< resolveSchemaExpr schema
- let dhall = dhallFromJSON conversion expr value
- either (throwIO . YAMLCompileError) pure dhall
-yamlToJson :: ByteString -> Either String Data.Aeson.Value
-yamlToJson s = case Data.YAML.Aeson.decode1Strict s of
- Right v -> Right v
- Left (pos, err) -> Left (show pos ++ err)
-showYaml :: Value -> String
-showYaml value = BS8.unpack (Data.YAML.Aeson.encode1Strict value)
diff --git a/tasty/Main.hs b/tasty/Main.hs
index 69e773b..9c33b77 100644
--- a/tasty/Main.hs
+++ b/tasty/Main.hs
@@ -5,11 +5,9 @@
module Main where
import Data.Monoid ((<>))
-import Dhall.JSON (Conversion(..))
import Test.Tasty (TestTree)
import qualified Data.Aeson as Aeson
-import qualified Data.ByteString
import qualified Data.ByteString.Lazy
import qualified Data.Text.IO
import qualified Dhall.Core as Core
@@ -18,7 +16,6 @@ import qualified Dhall.JSON
import qualified Dhall.JSONToDhall as JSONToDhall
import qualified Dhall.Parser
import qualified Dhall.TypeCheck
-import qualified Dhall.Yaml
import qualified GHC.IO.Encoding
import qualified Test.Tasty
import qualified Test.Tasty.HUnit
@@ -33,12 +30,7 @@ testTree :: TestTree
testTree =
Test.Tasty.testGroup "dhall-json"
[ testDhallToJSON "./tasty/data/issue48"
- , testDhallToYaml
- Dhall.Yaml.defaultOptions
- "./tasty/data/normal"
- , testDhallToYaml
- (Dhall.Yaml.defaultOptions { Dhall.Yaml.quoted = True })
- "./tasty/data/quoted"
+ , testDhallToJSON "./tasty/data/emptyObjectStrongType"
, testJSONToDhall "./tasty/data/emptyAlternative"
, testJSONToDhall "./tasty/data/emptyObject"
, testJSONToDhall "./tasty/data/emptyList"
@@ -74,12 +66,8 @@ testDhallToJSON prefix = Test.Tasty.HUnit.testCase prefix $ do
_ <- Core.throws (Dhall.TypeCheck.typeOf resolvedExpression)
- let mapKey = "mapKey"
- let mapValue = "mapValue"
- let conversion = Conversion {..}
let convertedExpression =
- Dhall.JSON.convertToHomogeneousMaps conversion resolvedExpression
+ Dhall.JSON.convertToHomogeneousMaps Dhall.JSON.defaultConversion resolvedExpression
actualValue <- do
Core.throws (Dhall.JSON.dhallToJSON convertedExpression)
@@ -137,19 +125,3 @@ testCustomConversionJSONToDhall conv prefix =
testJSONToDhall :: String -> TestTree
testJSONToDhall = testCustomConversionJSONToDhall JSONToDhall.defaultConversion
-testDhallToYaml :: Dhall.Yaml.Options -> String -> TestTree
-testDhallToYaml options prefix = Test.Tasty.HUnit.testCase prefix $ do
- let inputFile = prefix <> ".dhall"
- let outputFile = prefix <> ".yaml"
- text <- Data.Text.IO.readFile inputFile
- actualValue <- do
- Dhall.Yaml.dhallToYaml options (Just inputFile) text
- expectedValue <- Data.ByteString.readFile outputFile
- let message = "Conversion to YAML did not generate the expected output"
- Test.Tasty.HUnit.assertEqual message expectedValue actualValue
diff --git a/tasty/data/normal.dhall b/tasty/data/normal.dhall
deleted file mode 100644
index 366d032..0000000
--- a/tasty/data/normal.dhall
+++ /dev/null
@@ -1,6 +0,0 @@
-{ string_value = "2000-01-01"
-, text = ./yaml.txt as Text
-, int_value = 1
-, bool_value = True
-, yes = "y"
diff --git a/tasty/data/normal.yaml b/tasty/data/normal.yaml
deleted file mode 100644
index 95e2595..0000000
--- a/tasty/data/normal.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-bool_value: true
-int_value: 1
-string_value: 2000-01-01
-text: |
- Plain text
-yes: y
diff --git a/tasty/data/quoted.dhall b/tasty/data/quoted.dhall
deleted file mode 100644
index 366d032..0000000
--- a/tasty/data/quoted.dhall
+++ /dev/null
@@ -1,6 +0,0 @@
-{ string_value = "2000-01-01"
-, text = ./yaml.txt as Text
-, int_value = 1
-, bool_value = True
-, yes = "y"
diff --git a/tasty/data/quoted.yaml b/tasty/data/quoted.yaml
deleted file mode 100644
index c78f986..0000000
--- a/tasty/data/quoted.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-'bool_value': true
-'int_value': 1
-'string_value': '2000-01-01'
-'text': |
- Plain text
-'yes': 'y'
diff --git a/tasty/data/yaml.txt b/tasty/data/yaml.txt
deleted file mode 100644
index ec6816d..0000000
--- a/tasty/data/yaml.txt
+++ /dev/null
@@ -1 +0,0 @@
-Plain text
diff --git a/yaml-to-dhall/Main.hs b/yaml-to-dhall/Main.hs
deleted file mode 100644
index 417140a..0000000
--- a/yaml-to-dhall/Main.hs
+++ /dev/null
@@ -1,168 +0,0 @@
-{-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE RecordWildCards #-}
-{-# LANGUAGE PatternGuards #-}
-{-# LANGUAGE FlexibleContexts #-}
-{-# LANGUAGE FlexibleInstances #-}
-{-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE ScopedTypeVariables #-}
-module Main where
-import Control.Applicative (optional, (<|>))
-import Control.Exception (SomeException)
-import Data.Monoid ((<>))
-import Data.Text (Text)
-import Data.Version (showVersion)
-import Dhall.JSONToDhall (Conversion, parseConversion)
-import Dhall.Pretty (CharacterSet(..))
-import Dhall.YamlToDhall (Options(..), dhallFromYaml)
-import Options.Applicative (Parser, ParserInfo)
-import qualified Control.Exception
-import qualified Data.ByteString.Char8 as BSL8
-import qualified Data.Text.IO as Text.IO
-import qualified Data.Text.Prettyprint.Doc as Pretty
-import qualified Data.Text.Prettyprint.Doc.Render.Terminal as Pretty.Terminal
-import qualified Data.Text.Prettyprint.Doc.Render.Text as Pretty.Text
-import qualified Dhall.Pretty
-import qualified GHC.IO.Encoding
-import qualified Options.Applicative as Options
-import qualified System.Console.ANSI as ANSI
-import qualified System.Exit
-import qualified System.IO as IO
-import qualified Paths_dhall_json as Meta
--- ---------------
--- Command options
--- ---------------
-data CommandOptions
- = CommandOptions
- { schema :: Text
- , conversion :: Conversion
- , file :: Maybe FilePath
- , output :: Maybe FilePath
- , ascii :: Bool
- , plain :: Bool
- }
- | Version
- deriving (Show)
--- | Command info and description
-parserInfo :: ParserInfo CommandOptions
-parserInfo =
- ( Options.helper <*> parseOptions)
- ( Options.fullDesc
- <> Options.progDesc "Convert a YAML expression to a Dhall expression, given the expected Dhall type"
- )
--- | Parser for all the command arguments and options
-parseOptions :: Parser CommandOptions
-parseOptions =
- ( CommandOptions
- <$> parseSchema
- <*> parseConversion
- <*> optional parseFile
- <*> optional parseOutput
- <*> parseASCII
- <*> parsePlain
- )
- <|> parseVersion
- where
- parseSchema =
- Options.strArgument
- ( Options.metavar "SCHEMA"
- <> "Dhall type expression (schema)"
- )
- parseVersion =
- Options.flag'
- Version
- ( Options.long "version"
- <> Options.short 'V'
- <> "Display version"
- )
- parseFile =
- Options.strOption
- ( Options.long "file"
- <> "Read YAML expression from a file instead of standard input"
- <> Options.metavar "FILE"
- )
- parseOutput =
- Options.strOption
- ( Options.long "output"
- <> "Write Dhall expression to a file instead of standard output"
- <> Options.metavar "FILE"
- )
- parseASCII =
- Options.switch
- ( Options.long "ascii"
- <> "Format code using only ASCII syntax"
- )
- parsePlain =
- Options.switch
- ( Options.long "plain"
- <> "Disable syntax highlighting"
- )
--- ----------
--- Main
--- ----------
-main :: IO ()
-main = do
- GHC.IO.Encoding.setLocaleEncoding GHC.IO.Encoding.utf8
- options <- Options.execParser parserInfo
- case options of
- Version -> do
- putStrLn (showVersion Meta.version)
- CommandOptions {..} -> do
- let characterSet = case ascii of
- True -> ASCII
- False -> Unicode
- handle $ do
- bytes <- case file of
- Nothing -> BSL8.getContents
- Just path -> BSL8.readFile path
- result <- dhallFromYaml (Options schema conversion) bytes
- let document = Dhall.Pretty.prettyCharacterSet characterSet result
- let stream = Pretty.layoutSmart Dhall.Pretty.layoutOpts document
- case output of
- Nothing -> do
- supportsANSI <- ANSI.hSupportsANSI IO.stdout
- let ansiStream =
- if supportsANSI && not plain
- then fmap Dhall.Pretty.annToAnsiStyle stream
- else Pretty.unAnnotateS stream
- Pretty.Terminal.renderIO IO.stdout ansiStream
- Text.IO.putStrLn ""
- Just file_ ->
- IO.withFile file_ IO.WriteMode $ \h -> do
- Pretty.Text.renderIO h stream
- Text.IO.hPutStrLn h ""
-handle :: IO a -> IO a
-handle = Control.Exception.handle handler
- where
- handler :: SomeException -> IO a
- handler e = do
- IO.hPutStrLn IO.stderr ""
- IO.hPrint IO.stderr e
- System.Exit.exitFailure