enable image configuration

Author: davidblum

README.md

@@ -49,6 +49,12 @@ Version of docker image to use.
 
 Default: `latest`
 
+## `image` (string)
+
+Which shell check image to use.
+
+Default: `koalaman/shellcheck`
+
 ## License
 
 MIT (see [LICENSE](LICENSE))

hooks/command

@@ -102,9 +102,10 @@ while IFS=$'\n' read -r option; do
 done < <(plugin_read_list OPTIONS)
 
 BUILDKITE_PLUGIN_SHELLCHECK_VERSION="${BUILDKITE_PLUGIN_SHELLCHECK_VERSION:-stable}"
+BUILDKITE_PLUGIN_SHELLCHECK_IMAGE="${BUILDKITE_PLUGIN_SHELLCHECK_IMAGE:-koalaman/shellcheck}"
 
 echo "+++ Running shellcheck on ${#files[@]} files"
-if docker run --rm -v "$PWD:/mnt" --workdir "/mnt" "koalaman/shellcheck:$BUILDKITE_PLUGIN_SHELLCHECK_VERSION" "${options[@]+${options[@]}}" "${files[@]}"; then
+if docker run --rm -v "$PWD:/mnt" --workdir "/mnt" "$BUILDKITE_PLUGIN_SHELLCHECK_IMAGE:$BUILDKITE_PLUGIN_SHELLCHECK_VERSION" "${options[@]+${options[@]}}" "${files[@]}"; then
   echo "Files are ok ✅"
 else
   exit 1

plugin.yml

@@ -20,5 +20,7 @@ configuration:
       minItems: 1
     version:
       type: [string]
+    image:
+      type: [string]
   required:
     - files