Use package.yaml instead cabal file

.gitignore

@@ -1,3 +1,4 @@
 .local/
 .stack-work/
+*.cabal
 *.sublime-*

Dockerfile

@@ -1,5 +0,0 @@
-FROM fpco/stack-build:lts-13.10
-
-# Code formatter
-# RUN stack --system-ghc --local-bin-path=/usr/local/bin install \
-# 	hfmt

Makefile

@@ -1,5 +1,4 @@
 app_name := haskell-cron-matcher
-image := ${app_name}-stack
 
 container_work_dir := /app
 cache_dir := ${container_work_dir}/.stack-work
@@ -15,23 +14,29 @@ stack := docker run \
 	--volume "${PWD}:${container_work_dir}" \
 	--env "STACK_ROOT=${cache_dir}" \
 	--workdir "${container_work_dir}" \
-	${image}
+	fpco/stack-build:lts-15.16
+
+hfmt := docker run \
+	--rm \
+	--tty \
+	--init \
+	--user "${uid}:${gid}" \
+	--volume "${PWD}:${container_work_dir}" \
+	--workdir "${container_work_dir}" \
+	anwinged/hfmt:master
 
 # Targets
 
-.PHONY: build-docker
-build-docker:
-	docker build --tag=${image} .
-	${stack} stack --system-ghc --local-bin-path=./.local install hindent hfmt
-
 .PHONY: build
 build:
+	mkdir -p .stack-work
 	${stack} stack build
 
 .PHONY: test
 test:
+	mkdir -p .stack-work
 	${stack} stack test
 
 .PHONY: format
 format:
-	${stack} .local/hfmt -w app/ src/ test/
+	${hfmt} -w app/ src/ test/

haskell-cron-matcher.cabal

@@ -1,39 +0,0 @@
-name:                haskell-cron-matcher
-version:             0.1.0.0
-license-file:        LICENSE
-build-type:          Simple
-extra-source-files:  README.md
-cabal-version:       >=1.10
-
-library
-  hs-source-dirs:      src
-  exposed-modules:     Pattern, Field, Constraint, Helper
-  build-depends:       base >= 4.7 && < 5
-                     , dates == 0.2.2.2
-  default-language:    Haskell2010
-
-executable haskell-cron-matcher-exe
-  hs-source-dirs:      app
-  main-is:             Main.hs
-  ghc-options:         -threaded -rtsopts -with-rtsopts=-N -Wall -Werror
-  build-depends:       base
-                     , dates == 0.2.2.2
-                     , haskell-cron-matcher
-  default-language:    Haskell2010
-
-test-suite haskell-cron-matcher-test
-  type:                exitcode-stdio-1.0
-  hs-source-dirs:      test
-  main-is:             Spec.hs
-  other-modules:       PatternSpec, FieldSpec, ConstraintSpec, HelperSpec
-  build-depends:       base
-                     , dates == 0.2.2.2
-                     , hspec
-                     , QuickCheck
-                     , haskell-cron-matcher
-  ghc-options:         -threaded -rtsopts -with-rtsopts=-N -Wall -Werror
-  default-language:    Haskell2010
-
-source-repository head
-  type:     git
-  location: https://github.com/anwinged/haskell-cron-matcher

package.yaml

@@ -0,0 +1,39 @@
+name:                haskell-cron-matcher
+version:             0.1.0.0
+license:             MIT
+license-file:        LICENSE
+stability:           Experimental
+
+extra-source-files:
+  - LICENSE
+  - README.md
+  - stack.yaml
+
+ghc-options: -Wall
+
+dependencies:
+  - base >= 4.9 && < 5
+  - dates
+
+library:
+  source-dirs: src
+  exposed-modules:
+    - Pattern
+    - Field
+    - Constraint
+    - Helper
+
+executable:
+  main: Main.hs
+  source-dirs: app
+  dependencies:
+    - haskell-cron-matcher
+
+tests:
+  pure:
+    main: Spec.hs
+    source-dirs:
+      - test
+    dependencies:
+      - haskell-cron-matcher
+      - hspec

stack.yaml

@@ -15,7 +15,7 @@
 # resolver:
 #  name: custom-snapshot
 #  location: "./custom-snapshot.yaml"
-resolver: lts-12.26
+resolver: lts-14.27
 
 # User packages to be built.
 # Various formats can be used as shown in the example below.
@@ -41,7 +41,7 @@ packages:
 # Dependency packages to be pulled from upstream that are not in the resolver
 # (e.g., acme-missiles-0.3)
 extra-deps:
-  - dates-0.2.2.2
+  - dates-0.2.3.0
 
 # Override default flag values for local packages and extra-deps
 flags: {}

stack.yaml.lock

@@ -0,0 +1,19 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages:
+- completed:
+    hackage: dates-0.2.3.0@sha256:915a2fc85ea818542851ed54a85abe6a042e7d78f470a5a6db032768f6c6415a,2179
+    pantry-tree:
+      size: 443
+      sha256: 010c2b73848cb519ea9677eaedd03bfcd7f32735000d870e6dc763b9be15e12c
+  original:
+    hackage: dates-0.2.3.0
+snapshots:
+- completed:
+    size: 524996
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/14/27.yaml
+    sha256: 7ea31a280c56bf36ff591a7397cc384d0dff622e7f9e4225b47d8980f019a0f0
+  original: lts-14.27