feat: Host environment

[ChristopherHX]

This is my refactored implementation of a non docker based executor

To test running actions without docker specify -P ubuntu-latest=-self-hosted

I refactored a larger amount of code

• Allow to alter /var/run/act
  • otherwise concurrent executors on the same host conflict each other
  • this folder cannot be created on windows
• Tweak PATH manipulation to use custom list seperator, while not running in docker
• Different runner context if running on host vs. in a container

Fixes #97

I need to look into possible linting violations

Known Issues

• windows cmd not working, omitted here to shrink size
• Possible escaping problems for default shell, omitted here to shrink size
• On windows cmdline needs to be added to the container interface, omitted here to shrink size
• Default shell bash not suitable on windows
• docker actions are intentionally failing, since window and macos runner doesn't support them officially and some platforms like freebsd, etc. doesn't support docker

I want to know if this design change has a chance to get merged

Some implementation Details

• lookpath is mostly copied from the go stdlib, because the original didn't allow to provide a custom PATH variable for lookup and I want to make shure multiple parallel workers don't update PATH env var to use the stdlib directly
• Most changes are done by replace operations, API Change
• New if conditions to avoid a crash in Tests, these issues don't appear with a well constructed run_context

Commit Message

{{title}} (#1293)

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ EDITORCONFIG	editorconfig-checker	36		0	0.08s
✅ REPOSITORY	gitleaks	yes		no	2.34s
✅ REPOSITORY	git_diff	yes		no	0.0s
✅ REPOSITORY	secretlint	yes		no	0.99s
✅ YAML	prettier	1		0	0.48s
✅ YAML	v8r	1		0	2.26s

See errors details in artifact MegaLinter reports on CI Job page
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[codecov]

Codecov Report

Merging #1293 (399f87b) into master (4f8da0a) will increase coverage by 2.86%.
The diff coverage is 66.63%.

@@            Coverage Diff             @@
##           master    #1293      +/-   ##
==========================================
+ Coverage   57.50%   60.37%   +2.86%     
==========================================
  Files          32       44      +12     
  Lines        4594     6950    +2356     
==========================================
+ Hits         2642     4196    +1554     
- Misses       1729     2451     +722     
- Partials      223      303      +80     

Impacted Files	Coverage Δ
pkg/common/file.go	0.00% <0.00%> (ø)
pkg/container/host_environment.go	0.00% <0.00%> (ø)
pkg/container/util.go	0.00% <0.00%> (ø)
pkg/model/action.go	0.00% <0.00%> (ø)
pkg/model/step_result.go	0.00% <ø> (ø)
pkg/container/docker_run.go	12.82% <11.53%> (+7.27%)	⬆️
pkg/model/workflow.go	45.65% <23.80%> (-5.26%)	⬇️
...ontainer/linux_container_environment_extensions.go	24.32% <24.32%> (ø)
pkg/container/docker_pull.go	33.33% <33.33%> (ø)
pkg/container/file_collector.go	39.68% <39.68%> (ø)
... and 36 more

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[KnisterPeter]

I will look into this starting next week.
It's a lot to review. But I like the idea

[ChristopherHX]

Until Today this was a copy from docker_run.go.
The copied code has big flaws with parsing the env file, so this code is rewritten from scatch to pass all existing tests.

Update:
See the original code https://github.com/actions/runner/blob/3fc993da5946feac15c8020c414bca450f018f3e/src/Runner.Worker/FileCommandManager.cs#L285-L367, which differs significantly from the current docker_run impl.

[mergify]

@ChristopherHX this pull request is now in conflict 😩

Will be resolved once cplee finishs his first review.

[cplee]

@ChristopherHX - sorry for the delays with this one. Finally got a chance to try out locally. Looks great, thanks for your patience!!

[ChristopherHX]

@cplee I need your approval later a second time for this PR, because this PR is not the first in the merge queue we will see a small merge conflict today.

[cplee]

@ChristopherHX - I'll be watching 👀

[mergify]

@ChristopherHX this pull request has failed checks 🛠

[mergify]

@ChristopherHX this pull request has failed checks 🛠

[mergify]

@ChristopherHX this pull request has failed checks 🛠

[mergify]

@ChristopherHX this pull request has failed checks 🛠

[cplee]

🎉🎉🎉

[ChristopherHX]

Thank you, it was a long way

[KnisterPeter]

Thanks for your hard work @ChristopherHX