Merge pull request #24 from ma-sadeghi/feature/changed-only

Provide support to lint/format changed files only

README.md

@@ -52,3 +52,10 @@ See [Configuring Ruff](https://github.com/astral-sh/ruff/blob/main/docs/configur
   with:
     args: 'format --check'
 ```
+
+### Only run ruff on changed files
+```yaml
+- uses: chartboost/ruff-action@v1
+  with:
+    changed-files: 'true'
+```

action.yml

@@ -16,12 +16,22 @@ inputs:
     description: 'The version of ruff to use, e.g. "0.0.259"'
     required: false
     default: ""
+  changed-files:
+    description: 'Whether to only run ruff on changed files. Default: false'
+    required: false
+    default: "false"
 branding:
   color: "black"
   icon: "code"
 runs:
   using: composite
   steps:
+    - name: Get changed files
+      id: changed-files
+      if: ${{ inputs.changed-files == 'true' }}
+      uses: tj-actions/changed-files@v44
+      with:
+        files: '**.py'
     - run: |
         if [ "$RUNNER_OS" == "Windows" ]; then
           python $GITHUB_ACTION_PATH/action/main.py
@@ -33,5 +43,6 @@ runs:
         INPUT_ARGS: ${{ inputs.args }}
         INPUT_SRC: ${{ inputs.src }}
         INPUT_VERSION: ${{ inputs.version }}
+        CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
         pythonioencoding: utf-8
       shell: bash

action/main.py

@@ -11,6 +11,7 @@
 ARGS = os.getenv("INPUT_ARGS", default="")
 SRC = os.getenv("INPUT_SRC", default="")
 VERSION = os.getenv("INPUT_VERSION", default="")
+CHANGED_FILES = os.getenv("CHANGED_FILES", "")
 
 version_specifier = ""
 if VERSION != "":
@@ -21,6 +22,9 @@
 
 req = f"ruff{version_specifier}"
 
-proc = run(["pipx", "run", req, *shlex.split(ARGS), *shlex.split(SRC)])
+# If CHANGED_FILES is not empty, split it into a list; otherwise, use SRC
+files_to_check = shlex.split(CHANGED_FILES or SRC)
+
+proc = run(["pipx", "run", req, *shlex.split(ARGS), *files_to_check])
 
 sys.exit(proc.returncode)