Rename safe mode to recovery mode

[emontnemery]

Proposed change

Rename the core "safe mode" to "recovery mode"

Rationale

We are looking to add a mode that runs Home Assistant without custom integrations and custom frontend resources.

This new mode will help with triaging users that experience issues. Being able to restart Home Assistant in this new mode, will instantly exclude these custom parts as part of the problem when troubleshooting.

After some discussions with several people, "safe mode" felt like the most appropriate term for this, however, we already have a safe mode (which HA will load up when there is a critical issue during startup).

We think it makes sense to rename the latter mode from "safe mode" to "recovery mode"; as it truly is a mode that allows you to fix issues that prevent Home Assistant from starting up.

This frees up "safe mode" for use with a new feature, which is similar to the safe mode we know from Windows back in the day. Regular Home Assistant, without all extras loaded.

This change should be low risk, as these are not features developers built on top of, or are used manually from a user perspective.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

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  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.
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• I have reviewed two other open pull requests in this repository.

[home-assistant]

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[home-assistant]

Hey there @home-assistant/frontend, mind taking a look at this pull request as it has been labeled with an integration (frontend) you are listed as a code owner for? Thanks!

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Hey there @home-assistant/core, mind taking a look at this pull request as it has been labeled with an integration (http) you are listed as a code owner for? Thanks!

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[frenck]

There is also a safe_mode integration, should that be adjusted too?