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@borsboom borsboom released this 15 Mar 13:39
v1.4.0
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snoyberg Michael Snoyman
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See https://haskellstack.org for installation and upgrade instructions.

Release notes:

Major changes:

  • A new command, script, has been added, intended to make the script
    interpreter workflow more reliable, easier to use, and more
    efficient. This command forces the user to provide a --resolver
    value, ignores all config files for more reproducible results, and
    optimizes the existing package check to make the common case of all
    packages already being present much faster. This mode does require
    that all packages be present in a snapshot, however.
    #2805

Behavior changes:

  • The default package metadata backend has been changed from Git to
    the 01-index.tar.gz file, from the hackage-security project. This is
    intended to address some download speed issues from Github for
    people in certain geographic regions. There is now full support for
    checking out specific cabal file revisions from downloaded tarballs
    as well. If you manually specify a package index with only a Git
    URL, Git will still be used. See
    #2780

  • When you provide the --resolver argument to the stack unpack
    command, any packages passed in by name only will be looked up in
    the given snapshot instead of taking the latest version. For
    example, stack --resolver lts-7.14 unpack mtl will get version
    2.2.1 of mtl, regardless of the latest version available in the
    package indices. This will also force the same cabal file revision
    to be used as is specified in the snapshot.

    Unpacking via a package identifier (e.g. stack --resolver lts-7.14 unpack mtl-2.2.1) will ignore any settings in the snapshot and take
    the most recent revision.

    For backwards compatibility with tools relying on the presence of a
    00-index.tar, Stack will copy the 01-index.tar file to
    00-index.tar. Note, however, that these files are different; most
    importantly, 00-index contains only the newest revisions of cabal
    files, while 01-index contains all versions. You may still need to
    update your tooling.

  • Passing --(no-)nix-* options now no longer implies --nix, except for
    --nix-pure, so that the user preference whether or not to use Nix is
    honored even in the presence of options that change the Nix behavior.

Other enhancements:

  • Internal cleanup: configuration types are now based much more on lenses
  • stack build and related commands now allow the user to disable debug symbol stripping
    with new --no-strip, --no-library-stripping, and --no-executable-shipping flags,
    closing #877.
    Also turned error message for missing targets more readable (#2384)
  • stack haddock now shows index.html paths when documentation is already up to
    date. Resolved #781
  • Respects the custom-setup field introduced in Cabal 1.24. This
    supercedes any explicit-setup-deps settings in your stack.yaml
    and trusts the package's .cabal file to explicitly state all its
    dependencies.
  • If system package installation fails, get-stack.sh will fail as well. Also
    shows warning suggesting to run apt-get update or similar, depending on the
    OS.
    (#2898)
  • When stack ghci is run with a config with no packages (e.g. global project),
    it will now look for source files in the current work dir.
    (#2878)
  • Bump to hpack 0.17.0 to allow custom-setup and !include "..." in package.yaml.
  • The script interpreter will now output error logging. In particular,
    this means it will output info about plan construction errors.
    (#2879)
  • stack ghci now takes --flag and --ghc-options again (inadverently
    removed in 1.3.0).
    (#2986)
  • stack exec now takes --rts-options which passes the given arguments inside of
    +RTS ... args .. -RTS to the executable. This works around stack itself consuming
    the RTS flags on Windows. (#2986)
  • Upgraded http-client-tls version, which now offers support for the
    socks5:// and socks5h:// values in the http_proxy and https_proxy
    environment variables.

Bug fixes:

  • Bump to hpack 0.16.0 to avoid character encoding issues when reading and
    writing on non-UTF8 systems.
  • stack ghci will no longer ignore hsSourceDirs that contain ... (#2895)
  • stack list-dependencies --license now works for wired-in-packages,
    like base. (#2871)
  • stack setup now correctly indicates when it uses system ghc
    (#2963)
  • Fix to stack config set, in 1.3.2 it always applied to
    the global project.
    (#2709)
  • Previously, cabal files without exe or lib would fail on the "copy" step.
    (#2862)
  • stack upgrade --git now works properly. Workaround for affected
    versions (>= 1.3.0) is to instead run stack upgrade --git --source-only.
    (#2977)
  • Added support for GHC 8's slightly different warning format for
    dumping warnings from logs.
  • Work around a bug in Cabal/GHC in which package IDs are not unique
    for different source code, leading to Stack not always rebuilding
    packages depending on local packages which have
    changed. (#2904)

Thanks to all our contributors for this release:

  • Aditya Siram
  • Alexey Zabelin
  • Alexis Williams
  • Andreas Klebinger
  • Dale Wijnand
  • Echo Nolan
  • Emanuel Borsboom
  • Franz Thoma
  • Giovanni
  • Ian Sullivan
  • Jens Petersen
  • Justus Adam
  • Luke Murphy
  • Marcin Tolysz
  • Matt Gambogi
  • Michael Sloan
  • Michael Snoyman
  • Michiel Derhaeg
  • Piotr Bogdan
  • Randall Britten
  • Ryan Scott
  • Shlomo Zaks
  • Simon Jakobi
  • spikefoo
  • Steven Syrek
  • tallen-imvu
  • Thomas Allen
  • Tom Feron
  • Tomas Janousek
  • Tommaso Piazza
  • Vincent Hanquez
  • YPares
  • Yuriy Syrovetskiy
  • Yves Parès (Ywen)
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