Haskell Ide Engine Versions Save

• Resolver bumped, LTS 13.9 for GHC 8.6.3 (@alanz)
• Ongoing improvements of install.hs installation process and documentation. (@fendor, @power-fungus, @Anrock, @Hogeyama )
  • Improved documentation
  • can now also build via cabal new-build
  • improved cross-platform support
• Introduce floskell as an alternative formatting provider (@bubba, @AlexeyRaga, @luigy)
  • Introduces formattingProvider as a plugin API function.
  • Can be selected via configuration option formattingProvider
• Respects the only parameter of codeAction requests (@bubba)
  • So can request only quickfix or refactor code actions.
• Bump hlint to 2.1.15 (@alanz)

• Resolver bumped, LTS 13.5 for GHC 8.6.3 (@alanz)
• Use internal library hie-test-utils for testing (@bubba)
• Read files in UTF8 mode in ghc-mod (@alanz)
• documentation updates
  • document reactorPidcache (@bubba)
  • Add a note in README about dyld path for macOS builds (@kubum)
  • document workaround for missing gmp library (@Rhywun)
  • Change --recursive to --recurse-submodules when cloning (@leifmetcalf)
• Speed up CI on circleci (@bubba)
• Build via make
  • Recursively sync and update submodules in Makefile (@bubba)
• build via shake
  • Add 8.4.2 and 8.2.1 HIE versions to Shakefile (@Anrock)
  • Sync & update submodules recursively in Shakefile (@Anrock)
  • Remove v1 prefix from cabal commands in Shakefile (@Anrock)
  • Rename Shakefile.hs to install.hs (@Anrock)
  • install.hs: Sync submodules and install cabal before building dist(@fendor)
  • Display error message on stack-compilation errors (@power-fungus) Suggests doing stack clean and trying again.
  • Generate Shake help message based on GHC version (@fendor)
• remove EKG to reduce dependency footprint (@bubba)
• Bump hlint to 2.1.14 (@alanz) (for GHC versions from 8.2.2 to 8.6.3)

And there is work happening currently on a new implementation of cabal-helper to fully support cabal new-build, together with a rework of ghc-mod-core to make use of the new cabal-helper. This is a complex effort, and will take some time, but is being tackled by @DanielG, assisted by @fendor and @power-fungus,

• Introduce Shakefile as build alternative (@fendor)
• Support GHC 8.6.3
• Stability improvements
  • fixed process dying on some code action requests (#1018)
  • Deal with missing system GHC in hie-wrapper (#1012)
  • Deal with missing system GHC in hie
  • Return an error diagnostic when a project cannot be built (#1011)
• Completion now strips out OccName prefixes added by GHC (#996)
• Improve building on Windows
• Improve building on macOS
• Run diagnostics on file save. It used to only do it on change.

• Supports GHC 8.6
• Preliminary support for cabal new-build projects
• Can install via cabal new-build
• Completions: more comprehensive filtering of name prefixes introduced by GHC
• Replace bat script with PowerShell, update Windows instructions in README (@fsoikin)

• Install cabal / Cabal (needed for Cabal 2.4.0.1 support) via stack, for when there is no other GHC installed.

• LSP mode is now the default, and the --lsp flag has no effect
  • The --json flag can be used for JSON transport
• HIE now warns you if there is mismatch between the HIE GHC verison and the project GHC version
• Add Liquid Haskell support
• Add support for hierarchical document symbols
• Add many new types of code actions
  • Typed holes
  • HaRe refactoring
  • Misspelled variables
  • Missing top-level signatures
  • Prefix unused terms with _
  • Case splitting
  • Suggested pragmas and language extensions
• The parsed output from a module is now cached
  • Some features are now available without the need for the module to typecheck first
• Improve code completion
  • Suggests modules that can be imported
  • Suggests GHC extensions
  • Recognizes when completing a type or expression
  • Provides snippets for arguments to functions
• Add the ability to set an explicit Hoogle database

Thanks to the contributors for this release:

• @Avi-D-coder
• @Gurkenglas
• @Technix
• @alanz
• @apeyroux
• @bbarker
• @bubba
• @cblp
• @cronokirby
• @expipiplus1
• @jhrcek
• @jkachmar
• @lorenzo
• @m13m
• @meck
• @mpilgrem
• @waddlaw