Add test hooks with try-repo

Also simplifies the optional a match a bit.

Fixes #15

.drone.yml

@@ -9,9 +9,8 @@ workspace:
 steps:
 
   - name: test
-    image: iamthefij/drone-pre-commit:latest
+    image: iamthefij/drone-pre-commit@sha256:6ed8dae6b0067bd2e145e36421bcfbbc68975ff7ddaa5a3f285b5bcdaf0989c8
     commands:
-      - pip install docker-compose
       - make all
 
   - name: notify

.pre-commit-hooks.yaml

@@ -1,7 +1,7 @@
 ---
 - id: docker-compose-check
-  name: Validate docker-compose files
-  description: Checks that docker-compose files are valid
+  name: Validate docker compose files
+  description: Checks that docker compose files are valid
   language: script
   entry: compose-check.sh
-  files: (docker-)?compose.y[a]{0,1}ml$
+  files: (docker-)?compose\.ya?ml$

Makefile

@@ -2,7 +2,7 @@
 
 all: check test
 
-test: test-negative test-positive
+test: test-negative test-positive test-hooks
 
 .PHONY: test-positive
 test-positive:
@@ -16,6 +16,10 @@ test-negative:
 	@echo "Check multiple files. Should error."
 	./compose-check.sh tests/docker-compose* && { echo 'fail'; exit 1; } || echo 'ok'
 
+.PHONY: test-hooks
+test-hooks:
+	pre-commit try-repo . --all-files
+
 # Installs pre-commit hooks
 .PHONY: install-hooks
 install-hooks:

README.md

@@ -19,4 +19,4 @@ and then run `pre-commit autoupdate`.
 ## Hooks
 
 ### docker-compose-check
-Verifies that docker-compose files are valid by using `docker-compose config` to parse them.
+Verifies that docker compose files are valid by using `docker compose config` to parse them.

hadolint-deprecation.sh

@@ -1,8 +0,0 @@
-#! /bin/sh
-
-echo "Hadolint hooks have been deprecated in favor of upstream"
-echo "repo: https://github.com/hadolint/hadolint"
-echo "Replace hook 'hadolint' with 'hadolint-docker'"
-echo "Replace hook 'hadolint-system' with 'hadolint'"
-
-exit 1