Add explicit shell.nix file

1 files changed, 2 insertions, 64 deletions

diff --git a/stack.yaml b/stack.yaml
index e7a6598..37e8618 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,70 +1,8 @@
-# This file was automatically generated by 'stack init'
-#
-# Some commonly used options have been documented as comments in this file.
-# For advanced use and comprehensive documentation of the format, please see:
-# https://docs.haskellstack.org/en/stable/yaml_configuration/
+resolver: lts-18.28
 
-# Resolver to choose a 'specific' stackage snapshot or a compiler version.
-# A snapshot resolver dictates the compiler version and the set of packages
-# to be used for project dependencies. For example:
-#
-# resolver: lts-3.5
-# resolver: nightly-2015-09-21
-# resolver: ghc-7.10.2
-#
-# The location of a snapshot can be provided as a file or url. Stack assumes
-# a snapshot provided as a file might change, whereas a url resource does not.
-#
-# resolver: ./custom-snapshot.yaml
-# resolver: https://example.com/snapshots/2018-01-01.yaml
-resolver:
-  url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/18/27.yaml
-
-# User packages to be built.
-# Various formats can be used as shown in the example below.
-#
-# packages:
-# - some-directory
-# - https://example.com/foo/bar/baz-0.0.2.tar.gz
-#   subdirs:
-#   - auto-update
-#   - wai
 packages:
 - .
-# Dependency packages to be pulled from upstream that are not in the resolver.
-# These entries can reference officially published versions as well as
-# forks / in-progress versions pinned to a git hash. For example:
-#
-# extra-deps:
-# - acme-missiles-0.3
-# - git: https://github.com/commercialhaskell/stack.git
-#   commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a
-#
-# extra-deps: []
-
-# Override default flag values for local packages and extra-deps
-# flags: {}
-
-# Extra package databases containing global packages
-# extra-package-dbs: []
-
-# Control whether we use the GHC we find on the path
-# system-ghc: true
-#
-# Require a specific version of stack, using version ranges
-# require-stack-version: -any # Default
-# require-stack-version: ">=2.7"
-#
-# Override the architecture used by stack, especially useful on Windows
-# arch: i386
-# arch: x86_64
-#
-# Extra directories used by stack for building
-# extra-include-dirs: [/path/to/dir]
-# extra-lib-dirs: [/path/to/dir]
-#
-# Allow a newer minor version of GHC than the snapshot specifies
-# compiler-check: newer-minor
 
 nix:
   enable: true
+  shell-file: shell.nix