resolves #6

.pre-commit-hooks.yaml

@@ -30,3 +30,11 @@
   pass_filenames: false
   always_run: true
   minimum_pre_commit_version: '0.19.0'
+- id: sbt-scalafix
+  name: scalafix linting check
+  stages: [commit,push]
+  language: python_venv
+  entry: scalafix
+  pass_filenames: false
+  always_run: true
+  minimum_pre_commit_version: '0.3.1'

README.adoc

@@ -36,7 +36,7 @@ To add one or more of the hooks into your repo:
 ..pre-commit-config.yaml
 ----
 repos:
--   repo: https://github.com/pre-commit/pre-commit-hooks
+-   repo: https://github.com/softwaremill/scala-pre-commit-hooks
     rev: {currentVersion}
     default_phase: push #change to commit if desired
     hooks: #mix and match any of the following:
@@ -73,7 +73,7 @@ To limit hook runs to e.g. `pre-push`, you need to add a `stages` argument with
 ..pre-commit-config.yaml
 ----
 repos:
--   repo: https://github.com/pre-commit/pre-commit-hooks
+-   repo: https://github.com/softwaremill/scala-pre-commit-hooks
     rev: {currentVersion}
     hooks:
     -   id: sbt-fatal-warnings

pre_commit_hooks/scalafix.py

@@ -0,0 +1,16 @@
+from pre_commit_hooks.runner import run_sbt_command
+from colorama import init as colorama_init, Fore
+
+TASK_SCALAFIX = 'scalafixAll --check'
+MISSING_PLUGIN_CHECK_STRING = 'Not a valid key: scalafixAll'
+MISSING_PLUGIN_ERROR_MSG = f'{Fore.RED}ERROR: scalafix SBT plugin not present! See {Fore.BLUE}https://scalacenter.github.io/scalafix/docs/users/installation.html{Fore.RED} for installation instructions.'
+
+
+def main(argv=None):
+    colorama_init()
+
+    return run_sbt_command(f'; clean ; {TASK_SCALAFIX}', MISSING_PLUGIN_CHECK_STRING, MISSING_PLUGIN_ERROR_MSG)
+
+
+if __name__ == '__main__':
+    exit(main())