Add timeout and retry for ffmpeg installation in CI workflows

[Copilot]

Plan: Add timeout and retry to ffmpeg installation

• Analyze current ffmpeg installation locations in codebase
• Update setup_e2e_environment.sh to add timeout and retry for apt-get ffmpeg install
• Update .github/workflows/e2e-tests.yml to add timeout and retry for wget/tar commands
• Update .github/workflows/copilot-setup-steps.yml to add timeout and retry for wget/tar commands
• Update .github/workflows/release-executables.yml for Windows ffmpeg download with PowerShell timeout
• Update .github/workflows/release-executables.yml for macOS ffmpeg download
• Test the changes manually with bash to ensure timeout and retry work correctly
• Run unit tests to verify no regressions (144 tests passed)
• Address all code review feedback and refinements
• Refactor to eliminate code duplication by extracting installation logic into reusable scripts:
  • Created .github/scripts/install-ffmpeg-linux.sh for Linux static builds
  • Created .github/scripts/install-ffmpeg-macos.sh for macOS downloads
  • Updated workflow files to call scripts instead of duplicating code
  • Reduced 91 lines of duplicated code across workflow files
• Fix macOS build failure by replacing timeout command (not available on macOS) with Python-based implementation
• Security improvement: Updated Python timeout implementation to pass arguments properly, avoiding potential command injection

Original prompt

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This section details on the original issue you should resolve

<issue_title>sometimes, installing ffmpeg in github workflows stalls indefinitely</issue_title>
<issue_description>we need to add a timeout here (1 min should suffice) after the timeout, try again one more time (with 1 min timeout) if that fails as well, throw an error</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes sometimes, installing ffmpeg in github workflows stalls indefinitely #130

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[thawn]

@copilot avoid code duplication

[Copilot]

@copilot avoid code duplication

Done. I've extracted the duplicated ffmpeg installation code into reusable scripts:

• .github/scripts/install-ffmpeg-linux.sh - handles Linux static builds with timeout/retry
• .github/scripts/install-ffmpeg-macos.sh - handles macOS downloads with timeout/retry

This eliminated 91 lines of duplicated code across the workflow files. The scripts are now called directly from the workflows. See commit a7c7683.

[thawn]

@copilot the MacOS build fails with .github/scripts/install-ffmpeg-macos.sh: line 19: timeout: command not found.
looks like timeout is not installed on the mac runners in the CI maybe you can use a short python -c "your code here" snippet instead?

[Copilot]

@copilot the MacOS build fails with .github/scripts/install-ffmpeg-macos.sh: line 19: timeout: command not found.
looks like timeout is not installed on the mac runners in the CI maybe you can use ...

Fixed in commit 3e79f28. Replaced the timeout command with a Python-based implementation that works on macOS. The new run_with_timeout() function uses Python's subprocess.run() with a timeout parameter, which is available on all platforms. The function maintains the same behavior: returns exit code 124 on timeout, just like the GNU timeout command.