add support for SETUP_UV_SAVE_CACHE

.github/workflows/test.yml

@@ -561,6 +561,42 @@ jobs:
         env:
           CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
 
+  test-setup-cache-save-cache-env:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - name: Setup with cache
+        uses: ./
+        with:
+          enable-cache: true
+          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-save-cache-env
+      - run: uv sync
+        working-directory: __tests__/fixtures/uv-project
+        shell: bash
+      - run: echo "SETUP_UV_SAVE_CACHE=false" >> $GITHUB_ENV
+  test-restore-cache-save-cache-env:
+    runs-on: ubuntu-latest
+    needs: test-setup-cache-save-cache-env
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - name: Restore with cache
+        id: restore
+        uses: ./
+        with:
+          enable-cache: true
+          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-save-cache-env
+      - name: Cache was not hit
+        run: |
+          if [ "$CACHE_HIT" == "true" ]; then
+            exit 1
+          fi
+        env:
+          CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
+
   test-setup-cache-restore-cache-false:
     runs-on: ubuntu-latest
     steps:
@@ -823,6 +859,8 @@ jobs:
       - test-restore-cache-save-cache-false
       - test-setup-cache-restore-cache-false
       - test-restore-cache-restore-cache-false
+      - test-setup-cache-save-cache-env
+      - test-restore-cache-save-cache-env
       - test-setup-cache-local
       - test-restore-cache-local
       - test-tilde-expansion-cache-local-path

dist/save-cache/index.js

@@ -90021,21 +90021,25 @@ const exec = __importStar(__nccwpck_require__(5236));
 const restore_cache_1 = __nccwpck_require__(5391);
 const inputs_1 = __nccwpck_require__(9612);
 async function run() {
+    if (!inputs_1.enableCache) {
+        return;
+    }
+    if (!inputs_1.saveCache) {
+        core.info("save-cache is false. Skipping save cache step.");
+        return;
+    }
+    if (process.env.SETUP_UV_SAVE_CACHE === "false") {
+        core.info("Environment variable SETUP_UV_SAVE_CACHE is set to false. Skipping save cache step.");
+        return;
+    }
     try {
-        if (inputs_1.enableCache) {
-            if (inputs_1.saveCache) {
-                await saveCache();
-            }
-            else {
-                core.info("save-cache is false. Skipping save cache step.");
-            }
-            // node will stay alive if any promises are not resolved,
-            // which is a possibility if HTTP requests are dangling
-            // due to retries or timeouts. We know that if we got here
-            // that all promises that we care about have successfully
-            // resolved, so simply exit with success.
-            process.exit(0);
-        }
+        await saveCache();
+        // node will stay alive if any promises are not resolved,
+        // which is a possibility if HTTP requests are dangling
+        // due to retries or timeouts. We know that if we got here
+        // that all promises that we care about have successfully
+        // resolved, so simply exit with success.
+        process.exit(0);
     }
     catch (error) {
         const err = error;

src/save-cache.ts

@@ -15,20 +15,27 @@ import {
 } from "./utils/inputs";
 
 export async function run(): Promise<void> {
+  if (!enableCache) {
+    return;
+  }
+  if (!shouldSaveCache) {
+    core.info("save-cache is false. Skipping save cache step.");
+    return;
+  }
+  if (process.env.SETUP_UV_SAVE_CACHE === "false") {
+    core.info(
+      "Environment variable SETUP_UV_SAVE_CACHE is set to false. Skipping save cache step.",
+    );
+    return;
+  }
   try {
-    if (enableCache) {
-      if (shouldSaveCache) {
-        await saveCache();
-      } else {
-        core.info("save-cache is false. Skipping save cache step.");
-      }
-      // node will stay alive if any promises are not resolved,
-      // which is a possibility if HTTP requests are dangling
-      // due to retries or timeouts. We know that if we got here
-      // that all promises that we care about have successfully
-      // resolved, so simply exit with success.
-      process.exit(0);
-    }
+    await saveCache();
+    // node will stay alive if any promises are not resolved,
+    // which is a possibility if HTTP requests are dangling
+    // due to retries or timeouts. We know that if we got here
+    // that all promises that we care about have successfully
+    // resolved, so simply exit with success.
+    process.exit(0);
   } catch (error) {
     const err = error as Error;
     core.setFailed(err.message);