replace old stack.yaml

stack.yaml

@@ -1,35 +1,65 @@
-# For more information, see: http://docs.haskellstack.org/en/stable/yaml_configuration.html
+# 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/
 
-# Specifies the GHC version and set of packages available (e.g., lts-3.5, nightly-2015-09-21, ghc-7.10.2)
-resolver: lts-5.3
+# 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
+# resolver: ghcjs-0.1.0_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: lts-11.8
 
-# Local packages, usually specified by relative directory name
+# 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
+# - location:
+#    git: https://github.com/commercialhaskell/stack.git
+#    commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+# - location: https://github.com/commercialhaskell/stack/commit/e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+#  subdirs:
+#  - auto-update
+#  - wai
 packages:
-- '.'
-
-# Packages to be pulled from upstream that are not in the resolver (e.g., acme-missiles-0.3)
-extra-deps: []
+- .
+# Dependency packages to be pulled from upstream that are not in the resolver
+# using the same syntax as the packages field.
+# (e.g., acme-missiles-0.3)
+# extra-deps: []
 
 # Override default flag values for local packages and extra-deps
-flags: {}
+# flags: {}
 
 # Extra package databases containing global packages
-extra-package-dbs: []
+# 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: >= 1.0.0
-
+# require-stack-version: ">=1.7"
+#
 # 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