Add stack-nightly.yaml

Note that this works on macOS, but does not work on Linux, because fsnotify
depends on a version of hinotify on Linux that doesn't support GHC 8.4.

Author: borsboom

.travis.yml

@@ -29,11 +29,9 @@ matrix:
       compiler: ": #stack 8.2.2"
       addons: {apt: {packages: [ghc-8.2.2, alex-3.1.7, happy-1.19.5], sources: [hvr-ghc]}}
 
-    ## Disabled because 'stack-nightly.yaml' removed since the latest working
-    ## nightly snapshot the sams as the LTS-11
-    #- env: BUILD=stack GHCVER=8.2.2 STACK_YAML=stack-nightly.yaml
-    #  compiler: ": #stack 8.2.2"
-    #  addons: {apt: {packages: [ghc-8.2.2, alex-3.1.7, happy-1.19.5], sources: [hvr-ghc]}}
+    - env: BUILD=stack GHCVER=8.4.1 STACK_YAML=stack-nightly.yaml
+      compiler: ": #stack 8.4.1"
+      addons: {apt: {packages: [ghc-8.4.1, alex-3.1.7, happy-1.19.5], sources: [hvr-ghc]}}
 
     - env: BUILD=stack GHCVER=8.2.2 STACK_YAML=stack.yaml
       compiler: ": #stack 8.2.2 osx"
@@ -50,6 +48,12 @@ matrix:
       compiler: ": #stack 8.2.2 osx"
       os: osx
 
+    ## Expected to fail because fsnotify depends on a version of hinotify
+    ## that doesn't support GHC 8.4
+    - env: BUILD=stack GHCVER=8.4.1 STACK_YAML=stack-nightly.yaml
+      compiler: ": #stack 8.4.1"
+      addons: {apt: {packages: [ghc-8.4.1, alex-3.1.7, happy-1.19.5], sources: [hvr-ghc]}}
+
 # Note: the distinction between `before_install` and `install` is not important.
 # - in before_install we install build tools
 # - in install we install (haskell) dependencies

package.yaml

@@ -131,6 +131,10 @@ library:
   source-dirs: src/
   ghc-options:
   - -fwarn-identities
+  verbatim:
+    # TODO: replace with 'generated-exposed-modules' after stack-1.7 is released.
+    # Using 'verbatim' to support older hpack version.
+    autogen-modules: Paths_stack
   exposed-modules:
   - Control.Concurrent.Execute
   - Data.Aeson.Extended

stack-nightly.yaml

@@ -0,0 +1,21 @@
+resolver: nightly-2018-04-20
+
+# docker:
+#   enable: true
+#   repo: fpco/stack-full
+# image:
+#   containers:
+#     - base: "fpco/stack-base" # see ./etc/docker/stack-base/Dockerfile
+#       name: "fpco/stack-test"
+nix:
+  # --nix on the command-line to enable.
+  enable: false
+  packages:
+    - zlib
+    - unzip
+extra-deps:
+- bitarray-0.0.1.1
+- fsnotify-0.2.1.1
+- project-template-0.2.0.1
+- regex-applicative-text-0.1.0.1
+- unicode-transforms-0.3.4

stack.yaml

@@ -18,7 +18,7 @@ flags:
     hide-dependency-versions: true
     supported-build: true
 extra-deps:
-- rio-0.1.0.0@rev:0
+- rio-0.1.1.0@rev:0
 - Cabal-2.2.0.1@rev:0
 - hpack-0.28.2
 - http-api-data-0.3.8.1@rev:0