[Bug] Installer not working correctly when used with Act locally

[tomwyr]

• I have gone through the action README, documentation and wiki.
• I don't see my issue listed in existing issues.

Describe the bug
When using the action locally with Act, it fails to restore cache after running the action for the second and consecutive times.
The action seems to be mistakenly clearing the cache in the process.

To Reproduce
Steps to reproduce the behavior:

• Install Act.
• Setup a workflow that only installs Swift.
• Run the workflow with act -j setup-swift for the first time - action installs toolchain correctly.
• Run the workflow second time - action fails to restore cache and find Swift in path.

name: Setup Swift

on:
  push:
    branches:
      - main

jobs:
  setup-swift:
    runs-on: ubuntu-22.04
    steps:
      - uses: SwiftyLab/setup-swift@latest

Expected behavior
Action restores cached Swift toolchain and adds it to path.

Logs
first-run.txt
second-run.txt

Runner (please complete the following information):

• Name: ubuntu-22.04
• OS: Ubuntu
• Version 22.04

Additional context
Based on the logs and looking through the sources, what I noticed is:

• Action gets Swift location in tool-cache src
• Action reaches the line where it starts the cache restoration process src
• Tool-cache prepares the cache installation location by removing existing files at the destination path src
• Because the source and the target destinations are the same, what effectively happens is tool-cache removes cached files first and tries to copy non-existent files to the same location src

[soumyamahunt]

@tomwyr can you try with #332 if it fixes your issue?

[tomwyr]

@soumyamahunt It did fix the problem. Below are updated logs from the second, now successful, action execution.

second-success.txt