Don't check in stack.yaml

.gitignore

@@ -18,6 +18,7 @@ tests/Main
 _cache
 _store
 
+stack.yaml
 stack*.yaml.lock
 
 .stack-work/

README.md

@@ -12,7 +12,11 @@ This iteration began in November 2019. The previous site had been maintained for
 
 Because the site is deployed as static files, building is a 2-step process. First we build the executable (simply called `site`) and then we run `site` to build the website from the source files.
 
-The compiler _should_ be able to build with just
+First set up a `stack.yaml` file for `stack`. We have one that you can copy:
+
+	cp stack-default.yaml stack.yaml
+
+The compiler _should_ then be able to build with just
 
 	stack build
 

lib/PLClub/HakyllExtra.hs

@@ -13,6 +13,7 @@ import       Hakyll
 import       System.FilePath.Posix
 import       Data.List (reverse)
 import       Control.Monad (liftM)
+import       Control.Monad.Fail (MonadFail)
 import       Data.Ord (comparing)
 import       Data.List (sortBy)
 
@@ -104,7 +105,7 @@ siteContext =
 -- Look up the "year" field of an identifier's metadata
 -- Will throw a runtime error if the field does not exist
 -- or cannot be coerced to an integer
-getYear :: (MonadMetadata m)
+getYear :: (MonadMetadata m, MonadFail m)
         => Item a
         -> m Int
 getYear item =

plclub.cabal

@@ -11,14 +11,14 @@ library
     hs-source-dirs:     lib
     default-language: Haskell2010
     build-depends:      base == 4.*
-                    , hakyll == 4.12.*
+                    , hakyll >= 4.12 && < 4.14
                     --- Below is needed only for hackery
                     , temporary == 1.3.*
                     , directory == 1.3.*
                     , process == 1.6.*
                     , filepath == 1.4.*
                     , pandoc-types == 1.17.*
-                    , pandoc == 2.2.*
+                    , pandoc
                     , text == 1.2.*
 
 executable site

stack-default.yaml

@@ -0,0 +1,5 @@
+resolver: lts-14.27   # GHC 8.6.5
+packages:
+- .
+extra-deps:
+- hakyll-4.13.3.0