Sprite f2afdea792 refactor: extract ensure_ssh_key duplication to shared library (~220 lines) ... Eliminates duplicate SSH key registration logic across 5 cloud providers (Hetzner, DigitalOcean, Vultr, Linode, Lambda) by introducing a generic callback-based pattern in shared/common.sh. Before: Each provider had ~45 lines of nearly identical code for: - Generating SSH keys if missing - Getting fingerprints - Checking if key exists with provider - Registering key if not exists - Error handling After: Providers implement 2 simple callbacks: - check_callback: provider-specific API call to check if key exists - register_callback: provider-specific API call to register key The shared function handles: - Key generation (via generate_ssh_key_if_missing) - Fingerprint extraction (via get_ssh_fingerprint) - Flow control and logging - Callback orchestration Changes: - shared/common.sh: Added ensure_ssh_key_with_provider() function - hetzner/lib/common.sh: Refactored to use callbacks - digitalocean/lib/common.sh: Refactored to use callbacks - vultr/lib/common.sh: Refactored to use callbacks - linode/lib/common.sh: Refactored to use callbacks - lambda/lib/common.sh: Refactored to use callbacks Benefits: - DRY: Eliminates ~220 lines of duplicate code - Maintainability: Bug fixes in registration flow benefit all providers - Consistency: All providers use identical registration logic - Extensibility: New providers can reuse this pattern Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>		2026-02-08 01:33:06 +00:00
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common.sh	refactor: extract ensure_ssh_key duplication to shared library (~220 lines)	2026-02-08 01:33:06 +00:00