Recommend doing make check pre-commit

.circleci/config.yml

@@ -109,10 +109,10 @@ jobs:
             test/io-tests.sh
       - run:
           name: run linter
-          command: git ls-files | grep '\.l\?hs$' | xargs stack exec -- hlint -X QuasiQuotes -X NoPatternSynonyms "$@"
+          command: make lint
       - run:
           name: run styler
-          command: git ls-files | grep '\.l\?hs$' | xargs stack exec -- stylish-haskell -i && git diff-index --exit-code HEAD -- '*.hs' '*.lhs'
+          command: make style
 
   build-test-9.6:
     docker:

.github/CONTRIBUTING.md

@@ -42,14 +42,13 @@ your contributions.
 * All contributions must pass the tests before being merged. When
   you create a pull request your code will automatically be tested.
 
-* All code must also pass [hlint](http://community.haskell.org/~ndm/hlint/)
-  with no warnings. This helps enforce a uniform style for all
-  committers. Continuous integration will check this as well on every
-  pull request.
+* All code must also pass [hlint](http://community.haskell.org/~ndm/hlint/) and [stylish-haskell](https://github.com/jaspervdj/stylish-haskell)
+  with no warnings. This helps enforce a uniform style for all committers. Continuous integration will check this as well on every
+  pull request. There's a useful Makefile that helps with checking this locally. You can run `make commit-check` to do this manually but
+  we recommend adding it to `.git/hooks/pre-commit` to automatically check this before doing a commit.
 
 * For help building the Haskell code on your computer check out the [building from
-source](https://postgrest.com/en/stable/install.html#build-from-source)
-wiki page.
+  source](https://postgrest.com/en/stable/install.html#build-from-source) docs section.
 
 ### Running Tests
 

Makefile

@@ -1,4 +1,6 @@
-.PHONY: check clean lint style test test-watch coverage circleci circleci-prof-test check-dburi prompt-clean prompt-long-process
+.PHONY: commit-check check clean lint style test test-watch coverage circleci circleci-prof-test check-dburi prompt-clean prompt-long-process
+
+commit-check: lint style
 
 check: lint style test
 
@@ -9,8 +11,7 @@ lint:
 	git ls-files | grep '\.l\?hs$$' | xargs stack exec -- hlint -X QuasiQuotes -X NoPatternSynonyms "$$@"
 
 style:
-	git ls-files | grep '\.l\?hs$$' | xargs stack exec -- stylish-haskell -i
-
+	git ls-files | grep '\.l\?hs$$' | xargs stack exec -- stylish-haskell -i && git diff-index --exit-code HEAD -- '*.hs' '*.lhs'
 
 test: check-dburi
 	stack test
@@ -22,14 +23,12 @@ coverage: check-dburi clean
 	stack build --coverage
 	stack test --coverage
 
-
 circleci: prompt-long-process
 	circleci local execute --job build-test-9.4
 
 circleci-prof-test: prompt-long-process
 	circleci local execute --job build-prof-test
 
-
 check-dburi:
 	test -n "$(POSTGREST_TEST_CONNECTION)" # Requires POSTGREST_TEST_CONNECTION environmental variable