Merge branch 'main' into conan-example

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
@@ -14,6 +14,12 @@ See ["Caching dependencies to speed up workflows"](https://help.github.com/githu
 * Fixed download issue for files > 2GB during restore.
 * Updated the minimum runner version support from node 12 -> node 16.
 * Fixed avoiding empty cache save when no files are available for caching.
+* Fixed tar creation error while trying to create tar with path as `~/` home folder on `ubuntu-latest`.
+* Fixed zstd failing on amazon linux 2.0 runners.
+* Fixed cache not working with github workspace directory or current directory.
+* Fixed the download stuck problem by introducing a timeout of 1 hour for cache downloads.
+* Fix zstd not working for windows on gnu tar in issues.
+* 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.
 
 Refer [here](https://github.com/actions/cache/blob/v2/README.md) for previous versions
 
@@ -28,7 +34,11 @@ If you are using this inside a container, a POSIX-compliant `tar` needs to be in
 
 * `path` - A list of files, directories, and wildcard patterns to cache and restore. See [`@actions/glob`](https://github.com/actions/toolkit/tree/main/packages/glob) for supported patterns.
 * `key` - An explicit key for restoring and saving the cache
-* `restore-keys` - An ordered list of keys to use for restoring the cache if no cache hit occurred for key
+* `restore-keys` - An ordered list of keys to use for restoring stale cache if no cache hit occurred for key. Note
+`cache-hit` returns false in this case.
+
+#### Environment Variables
+* `SEGMENT_DOWNLOAD_TIMEOUT_MIN` - Segment download timeout (in minutes, default `60`) to abort download of the segment if not completed in the defined number of minutes. [Read more](#cache-segment-restore-timeout)
 
 ### Outputs
 
@@ -70,6 +80,8 @@ jobs:
       run: /primes.sh -d prime-numbers
 ```
 
+> Note: You must use the `cache` action in your workflow before you need to use the files that might be restored from the cache. If the provided `key` doesn't match an existing cache, a new cache is automatically created if the job completes successfully.
+
 ## Implementation Examples
 
 Every programming language and framework has its own way of caching.
@@ -78,6 +90,7 @@ See [Examples](examples.md) for a list of `actions/cache` implementations for us
 
 - [C++ - Conan](./examples.md#c---conan)
 - [C# - NuGet](./examples.md#c---nuget)
+- [Clojure - Lein Deps](./examples.md#clojure---lein-deps)
 - [D - DUB](./examples.md#d---dub)
 - [Deno](./examples.md#deno)
 - [Elixir - Mix](./examples.md#elixir---mix)
@@ -171,33 +184,33 @@ jobs:
   build-linux:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+      - uses: actions/checkout@v3
 
-    - name: Cache Primes
-      id: cache-primes
-      uses: actions/cache@v3
-      with:
-        path: prime-numbers
-        key: primes
+      - name: Cache Primes
+        id: cache-primes
+        uses: actions/cache@v3
+        with:
+          path: prime-numbers
+          key: primes
 
-    - name: Generate Prime Numbers
-      if: steps.cache-primes.outputs.cache-hit != 'true'
-      run: ./generate-primes.sh -d prime-numbers
-      
-    - name: Cache Numbers
-      id: cache-numbers
-      uses: actions/cache@v3
-      with:
-        path: numbers
-        key: primes
+      - name: Generate Prime Numbers
+        if: steps.cache-primes.outputs.cache-hit != 'true'
+        run: ./generate-primes.sh -d prime-numbers
 
-    - name: Generate Numbers
-      if: steps.cache-numbers.outputs.cache-hit != 'true'
-      run: ./generate-primes.sh -d numbers
-      
-   build-windows:
-      runs-on: windows-latest
-      steps:
+      - name: Cache Numbers
+        id: cache-numbers
+        uses: actions/cache@v3
+        with:
+          path: numbers
+          key: primes
+
+      - name: Generate Numbers
+        if: steps.cache-numbers.outputs.cache-hit != 'true'
+        run: ./generate-primes.sh -d numbers
+
+  build-windows:
+    runs-on: windows-latest
+    steps:
       - uses: actions/checkout@v3
 
       - name: Cache Primes
@@ -212,6 +225,17 @@ jobs:
         run: ./generate-primes -d prime-numbers
 ```
 
+## 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.
+
+- [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.