d1c5beb50d
Adds comprehensive build cache snapshot and restore for overlay OS. Problem: Upstream Redox build system is single-stream — make clean destroys cached stage.pkgar files permanently. Build can't recover without full from-scratch rebuild (2-4 hours). Solution: Red Bear cache system provides: - snapshot-cache.sh: Save all stage.pkgar to local/cache/ - restore-cache.sh: Restore from snapshot after make clean - Auto-restore: Makefile auto-restores cache before build - Essential cache: Pre-built caches for boot packages tracked in git - Cookbook fixes: Missing deps trigger rebuild instead of crash With cache restore, make clean recovery is measured in seconds, not hours. Gaps fixed in cookbook: - modified_all_btree: missing dep → UNIX_EPOCH (rebuild trigger) - sysroot install: missing dep → skip + rebuild
5 lines
36 B
Plaintext
5 lines
36 B
Plaintext
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!essential/
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!.gitignore
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!.gitkeep
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