feat: support multiple files (#701)

* feat: support multiple files

* fix: set IFS

* fix: use while loop

* ci: fix multiple output

* docs: update README

.github/workflows/test.yaml

@@ -12,3 +12,28 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: ./
+      - name: Test a single file
+        uses: ./
+        with:
+          config_file_path: renovate.json
+      - name: Test multiple files
+        uses: ./
+        with:
+          config_file_path: |
+            renovate.json
+            tests/renovate.json
+      - id: files
+        run: |
+          set -euo pipefail
+          files=$(git ls-files | grep renovate.json)
+          # https://stackoverflow.com/a/74232400
+          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
+          {
+            echo "files<<$EOF"
+            echo "$files"
+            echo "$EOF"
+          } >> "$GITHUB_OUTPUT"
+      - name: Pass files through output
+        uses: ./
+        with:
+          config_file_path: ${{ steps.files.outputs.files }}

README.md

@@ -43,6 +43,36 @@ By default, the following files are validated.
 * renovate.json5
 * .renovaterc
 
+If you want to validate multiple files, you can pass multile lines.
+Leading spaces on each line are removed.
+
+```yaml
+with:
+  config_file_path: |
+    default.json
+    foo.json
+```
+
+You can pass `config_file_path` through output command.
+
+```yaml
+      - id: files
+        run: |
+          set -euo pipefail
+          files=$(git ls-files | grep renovate.json)
+          # https://stackoverflow.com/a/74232400
+          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
+          {
+            echo "files<<$EOF"
+            echo "$files"
+            echo "$EOF"
+          } >> "$GITHUB_OUTPUT"
+      - name: Pass files through output
+        uses: suzuki-shunsuke/[email protected]
+        with:
+          config_file_path: ${{ steps.files.outputs.files }}
+```
+
 ## Output
 
 Nothing.

action.yaml

@@ -28,6 +28,8 @@ inputs:
       - renovate.json
       - renovate.json5
       - .renovaterc
+
+      You can specify multiple files by multiple lines.
     required: false
 runs:
   using: composite
@@ -50,8 +52,13 @@ runs:
         fi
 
         if [ -n "$CONFIG_FILE_PATH" ]; then
-          echo "===> RENOVATE_CONFIG_FILE=\"$CONFIG_FILE_PATH\" npx --yes --package \"$pkg\" -c \"renovate-config-validator $opts\"" >&2
-          RENOVATE_CONFIG_FILE="$CONFIG_FILE_PATH" npx --yes --package "$pkg" -c "renovate-config-validator $opts"
+          while read -r file; do
+            if [ -z "$file" ]; then
+              continue
+            fi
+            echo "===> RENOVATE_CONFIG_FILE=\"$file\" npx --yes --package \"$pkg\" -c \"renovate-config-validator $opts\"" >&2
+            RENOVATE_CONFIG_FILE="$file" npx --yes --package "$pkg" -c "renovate-config-validator $opts"
+          done < <(echo "$CONFIG_FILE_PATH")
           exit 0
         fi
 

tests/renovate.json

@@ -0,0 +1,5 @@
+{
+  "extends": [
+    "config:best-practices"
+  ]
+}