fix(oauth): save installer-latest in FileInstallationStore when historical data is disabled

[abhishekacharya200]

Summary

When FileInstallationStore is created with historical_data_enabled=False, save() only writes installer-{user_id}-latest. find_installation() without a user_id reads installer-latest, which is never written in that mode, so it always returns None. This includes the lookup Bolt's default authorize does on every request.

store = FileInstallationStore(historical_data_enabled=False)
store.save(installation)  # enterprise_id="E111", team_id="T111", user_id="U111"
store.find_installation(enterprise_id="E111", team_id="T111")  # None

This change makes the non-historical branch also write installer-latest. AmazonS3InstallationStore already does this in the same mode. The historical-data path is unchanged.

Testing

pytest tests/slack_sdk/oauth/installation_store/test_file.py

The new test_save_and_find_without_historical_data fails on main and passes with this change. It uses a temporary base_dir, so it doesn't write to the home directory.

Category

• slack_sdk.web.WebClient (sync/async) (Web API client)
• slack_sdk.webhook.WebhookClient (sync/async) (Incoming Webhook, response_url sender)
• slack_sdk.socket_mode (Socket Mode client)
• slack_sdk.signature (Request Signature Verifier)
• slack_sdk.oauth (OAuth Flow Utilities)
• slack_sdk.models (UI component builders)
• slack_sdk.scim (SCIM API client)
• slack_sdk.audit_logs (Audit Logs API client)
• slack_sdk.rtm_v2 (RTM client)
• /docs (Documents)
• /tutorial (PythOnBoardingBot tutorial)
• tests/integration_tests (Automated tests for this library)

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've run python3 -m venv .venv && source .venv/bin/activate && ./scripts/run_validation.sh after making the changes.

[salesforce-cla]

Thanks for the contribution! Before we can merge this, we need @abhishekacharya200 to sign the Salesforce Inc. Contributor License Agreement.

[abhishekacharya200]

I have signed the Salesforce CLA.