Inform user of unsupported old version (#134)

Versions older than v0.0.247 do not have binaries in the GitHub releases

.github/workflows/test.yml

@@ -51,6 +51,22 @@ jobs:
         with:
           version: ${{ matrix.ruff-version }}
           src: __tests__/fixtures/python-project
+  test-unsupported-version:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Try install old version
+        id: install
+        continue-on-error: true
+        uses: ./
+        with:
+          version: v0.0.246
+          src: __tests__/fixtures/python-project
+      - name: Check if the action failed
+        run: |
+          if [ ${{ steps.install.outcome }} == "success" ]; then
+            exit 1
+          fi
   test-version-from-version-file-pyproject:
     runs-on: ubuntu-latest
     steps:
@@ -272,6 +288,7 @@ jobs:
       - lint
       - test-latest-version
       - test-specific-version
+      - test-unsupported-version
       - test-version-from-version-file-pyproject
       - test-default-version-from-pyproject
       - test-default-version-from-pyproject-dev-group

README.md

@@ -95,6 +95,9 @@ the ruff version to install. If no pyproject.toml file is found, or no ruff vers
 `project.dependencies`, `project.optional-dependencies`, or `dependency-groups`,
 the latest version is installed.
 
+> [!NOTE]
+> This action does only support ruff versions v0.0.247 and above.
+
 #### Install the latest version
 
 ```yaml

src/ruff-action.ts

@@ -23,6 +23,7 @@ import {
 } from "./utils/inputs";
 import { getRuffVersionFromRequirementsFile } from "./utils/pyproject";
 import * as fs from "node:fs";
+import * as semver from "semver";
 
 async function run(): Promise<void> {
   const platform = getPlatform();
@@ -62,6 +63,11 @@ async function setupRuff(
   githubToken: string,
 ): Promise<{ ruffDir: string; version: string }> {
   const resolvedVersion = await determineVersion();
+  if (semver.lt(resolvedVersion, "v0.0.247")) {
+    throw Error(
+      "This action does not support ruff versions older than 0.0.247",
+    );
+  }
   const toolCacheResult = tryGetFromToolCache(arch, resolvedVersion);
   if (toolCacheResult.installedPath) {
     core.info(`Found ruffDir in tool-cache for ${toolCacheResult.version}`);