Actions/cache release 3.0.9 (#930)

* Release

* Update RELEASES.md

Co-authored-by: Lovepreet Singh <pdotl@github.com>

.github/auto_assign.yml

@@ -6,6 +6,7 @@ addAssignees: false
 
 # A list of reviewers to be added to pull requests (GitHub user name)
 reviewers:
+  - anuragc617
   - pallavx
   - pdotl
   - phantsure

.github/workflows/auto-assign-issues.yml

@@ -11,5 +11,5 @@ jobs:
             - name: 'Auto-assign issue'
               uses: pozil/auto-assign-issue@v1.4.0
               with:
-                  assignees: pallavx,pdotl,phantsure,kotewar,tiwarishub,aparna-ravindra,vsvipul,bishal-pdmsft
+                  assignees: anuragc617,pallavx,pdotl,phantsure,kotewar,tiwarishub,aparna-ravindra,vsvipul,bishal-pdmsft
                   numOfAssignee: 1

.github/workflows/workflow.yml

@@ -5,14 +5,10 @@ on:
     branches:
       - main
       - releases/**
-    paths-ignore:
-      - '**.md'
   push:
     branches:
       - main
       - releases/**
-    paths-ignore:
-      - '**.md'
 
 jobs:
   # Build and unit test

README.md

@@ -6,7 +6,7 @@ This action allows caching dependencies and build outputs to improve workflow ex
 
 ## Documentation
 
-See ["Caching dependencies to speed up workflows"](https://help.github.com/github/automating-your-workflow-with-github-actions/caching-dependencies-to-speed-up-workflows).
+See ["Caching dependencies to speed up workflows"](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows).
 
 ## What's New
 ### v3
@@ -223,30 +223,17 @@ jobs:
         if: steps.cache-primes.outputs.cache-hit != 'true'
         run: ./generate-primes -d prime-numbers
 ```
-## Cache segment restore timeout
-
-A cache gets downloaded in multiple segments of fixed sizes (`1GB` for a `32-bit` runner and `2GB` for a `64-bit` runner). Sometimes, a segment download gets stuck which causes the workflow job to be stuck forever and fail. Version `v3.0.8` of `actions/cache` introduces a segment download timeout. The segment download timeout will allow the segment download to get aborted and hence allow the job to proceed with a cache miss.
-
-Default value of this timeout is 60 minutes and can be customized by specifying an [environment variable](https://docs.github.com/en/actions/learn-github-actions/environment-variables) named `SEGMENT_DOWNLOAD_TIMEOUT_MINS` with timeout value in minutes.
 
 ## Known practices and workarounds
 Following are some of the known practices/workarounds which community has used to fulfill specific requirements. You may choose to use them if suits your use case. Note these are not necessarily the only or the recommended solution.
 
-#### Update a cache
-A cache today is immutable and cannot be updated. But some use cases require the cache to be saved even though there was a "hit" during restore. To do so, use a `key` which is unique for every run and use `restore-keys` to restore the nearest cache. For example:
-  ```
-      - name: update cache on every commit
-        uses: actions/cache@v3
-        with:
-          path: prime-numbers
-          key: primes-${{ runner.os }}-${{ github.run_id }} # Can use time based key as well
-          restore-keys: |
-            primes-${{ runner.os }}
-  ```          
-  Please note that this will create a new cache on every run and hence will consume the cache [quota](#cache-limits).
-  
-#### Use cache across feature branches
-Reusing cache across feature branches is not allowed today to provide cache [isolation](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache). However if both feature branches are from the default branch, a good way to achieve this is to ensure that the default branch has a cache. This cache will then be consumable by both feature branches.
+- [Cache segment restore timeout](./workarounds.md#cache-segment-restore-timeout)
+- [Update a cache](./workarounds.md#update-a-cache)
+- [Use cache across feature branches](./workarounds.md#use-cache-across-feature-branches)
+- [Improving cache restore performance on Windows/Using cross-os caching](./workarounds.md#improving-cache-restore-performance-on-windows-using-cross-os-caching)
+
+#### Windows environment variables
+Please note that Windows environment variables (like `%LocalAppData%`) will NOT be expanded by this action. Instead, prefer using `~` in your paths which will expand to HOME directory. For example, instead of `%LocalAppData%`, use `~\AppData\Local`. For a list of supported default environment variables, see [this](https://docs.github.com/en/actions/learn-github-actions/environment-variables) page. 
 
 ## Contributing
 We would love for you to contribute to `actions/cache`, pull requests are welcome! Please see the [CONTRIBUTING.md](CONTRIBUTING.md) for more information.

RELEASES.md

@@ -28,4 +28,7 @@
 
 ### 3.0.8
 - Fix zstd not working for windows on gnu tar in issues [#888](https://github.com/actions/cache/issues/888) and [#891](https://github.com/actions/cache/issues/891).
-- Allowing users to provide a custom timeout as input for aborting download of a cache segment using an environment variable `SEGMENT_DOWNLOAD_TIMEOUT_MIN`. Default is 60 minutes.
+- Allowing users to provide a custom timeout as input for aborting download of a cache segment using an environment variable `SEGMENT_DOWNLOAD_TIMEOUT_MIN`. Default is 60 minutes.
+
+### 3.0.9
+- Enhanced the warning message for cache unavailablity in case of GHES.

__tests__/actionUtils.test.ts

@@ -277,8 +277,8 @@ test("isCacheFeatureAvailable for ac enabled", () => {
 test("isCacheFeatureAvailable for ac disabled on GHES", () => {
     jest.spyOn(cache, "isFeatureAvailable").mockImplementation(() => false);
 
-    const message =
-        "Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.";
+    const message = `Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.
+Otherwise please upgrade to GHES version >= 3.5 and If you are also using Github Connect, please unretire the actions/cache namespace before upgrade (see https://docs.github.com/en/enterprise-server@3.5/admin/github-actions/managing-access-to-actions-from-githubcom/enabling-automatic-access-to-githubcom-actions-using-github-connect#automatic-retirement-of-namespaces-for-actions-accessed-on-githubcom)`;
     const infoMock = jest.spyOn(core, "info");
 
     try {

dist/restore/index.js

@@ -38452,7 +38452,8 @@ exports.getInputAsInt = getInputAsInt;
 function isCacheFeatureAvailable() {
     if (!cache.isFeatureAvailable()) {
         if (isGhes()) {
-            logWarning("Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.");
+            logWarning(`Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.
+Otherwise please upgrade to GHES version >= 3.5 and If you are also using Github Connect, please unretire the actions/cache namespace before upgrade (see https://docs.github.com/en/enterprise-server@3.5/admin/github-actions/managing-access-to-actions-from-githubcom/enabling-automatic-access-to-githubcom-actions-using-github-connect#automatic-retirement-of-namespaces-for-actions-accessed-on-githubcom)`);
         }
         else {
             logWarning("An internal error has occurred in cache backend. Please check https://www.githubstatus.com/ for any ongoing issue in actions.");

dist/save/index.js

@@ -38452,7 +38452,8 @@ exports.getInputAsInt = getInputAsInt;
 function isCacheFeatureAvailable() {
     if (!cache.isFeatureAvailable()) {
         if (isGhes()) {
-            logWarning("Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.");
+            logWarning(`Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.
+Otherwise please upgrade to GHES version >= 3.5 and If you are also using Github Connect, please unretire the actions/cache namespace before upgrade (see https://docs.github.com/en/enterprise-server@3.5/admin/github-actions/managing-access-to-actions-from-githubcom/enabling-automatic-access-to-githubcom-actions-using-github-connect#automatic-retirement-of-namespaces-for-actions-accessed-on-githubcom)`);
         }
         else {
             logWarning("An internal error has occurred in cache backend. Please check https://www.githubstatus.com/ for any ongoing issue in actions.");

examples.md

@@ -332,7 +332,7 @@ If using `npm config` to retrieve the cache directory, ensure you run [actions/s
 - name: restore lerna
   uses: actions/cache@v3
   with:
-    path: **/node_modules
+    path: '**/node_modules'
     key: ${{ runner.os }}-${{ hashFiles('**/yarn.lock') }}
 ```
 

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "cache",
-  "version": "3.0.8",
+  "version": "3.0.9",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "cache",
-      "version": "3.0.8",
+      "version": "3.0.9",
       "license": "MIT",
       "dependencies": {
         "@actions/cache": "^3.0.4",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cache",
-  "version": "3.0.8",
+  "version": "3.0.9",
   "private": true,
   "description": "Cache dependencies and build outputs",
   "main": "dist/restore/index.js",

src/utils/actionUtils.ts

@@ -81,7 +81,8 @@ export function isCacheFeatureAvailable(): boolean {
     if (!cache.isFeatureAvailable()) {
         if (isGhes()) {
             logWarning(
-                "Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not."
+                `Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.
+Otherwise please upgrade to GHES version >= 3.5 and If you are also using Github Connect, please unretire the actions/cache namespace before upgrade (see https://docs.github.com/en/enterprise-server@3.5/admin/github-actions/managing-access-to-actions-from-githubcom/enabling-automatic-access-to-githubcom-actions-using-github-connect#automatic-retirement-of-namespaces-for-actions-accessed-on-githubcom)`
             );
         } else {
             logWarning(

workarounds.md

@@ -0,0 +1,38 @@
+#### Cache segment restore timeout
+A cache gets downloaded in multiple segments of fixed sizes (`1GB` for a `32-bit` runner and `2GB` for a `64-bit` runner). Sometimes, a segment download gets stuck which causes the workflow job to be stuck forever and fail. Version `v3.0.8` of `actions/cache` introduces a segment download timeout. The segment download timeout will allow the segment download to get aborted and hence allow the job to proceed with a cache miss.
+
+Default value of this timeout is 60 minutes and can be customized by specifying an [environment variable](https://docs.github.com/en/actions/learn-github-actions/environment-variables) named `SEGMENT_DOWNLOAD_TIMEOUT_MINS` with timeout value in minutes.
+
+#### Update a cache
+A cache today is immutable and cannot be updated. But some use cases require the cache to be saved even though there was a "hit" during restore. To do so, use a `key` which is unique for every run and use `restore-keys` to restore the nearest cache. For example:
+  ```yaml
+      - name: update cache on every commit
+        uses: actions/cache@v3
+        with:
+          path: prime-numbers
+          key: primes-${{ runner.os }}-${{ github.run_id }} # Can use time based key as well
+          restore-keys: |
+            primes-${{ runner.os }}
+  ```          
+  Please note that this will create a new cache on every run and hence will consume the cache [quota](#cache-limits).
+  
+#### Use cache across feature branches
+Reusing cache across feature branches is not allowed today to provide cache [isolation](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache). However if both feature branches are from the default branch, a good way to achieve this is to ensure that the default branch has a cache. This cache will then be consumable by both feature branches.
+
+#### Improving cache restore performance on Windows/Using cross-os caching
+Currently, cache restore is slow on Windows due to tar being inherently slow and the compression algorithm `gzip` in use. `zstd` is the default algorithm in use on linux and macos. It was disabled on Windows due to issues with bsd tar(libarchive), the tar implementation in use on Windows. 
+
+To improve cache restore performance, we can re-enable `zstd` as the compression algorithm using the following workaround. Add the following step to your workflow before the cache step:
+
+```yaml
+    - if: ${{ runner.os == 'Windows' }}
+      name: Use GNU tar
+      shell: cmd
+      run: |
+        echo "Adding GNU tar to PATH"
+        echo C:\Program Files\Git\usr\bin>>"%GITHUB_PATH%"
+```
+
+The `cache` action will use GNU tar instead of bsd tar on Windows. This should work on all Github Hosted runners as it is. For self-hosted runners, please ensure you have GNU tar and `zstd` installed.
+
+The above workaround is also needed if you wish to use cross-os caching since difference of compression algorithms will result in different cache versions for the same cache key. So the above workaround will ensure `zstd` is used for caching on all platforms thus resulting in the same cache version for the same cache key.