feat(checkpoint): workspace checkpointing + rewind (issue #194) - #235
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| func Open(workspace string) (*Store, error) { | ||
| root := filepath.Join(workspace, ".sin-code", "checkpoints") | ||
| if err := os.MkdirAll(filepath.Join(root, "blobs"), 0o755); err != nil { |
| sum := sha256.Sum256(content) | ||
| h := hex.EncodeToString(sum[:]) | ||
| dst := filepath.Join(s.root, "blobs", h) | ||
| if _, err := os.Stat(dst); err == nil { |
| if _, err := os.Stat(dst); err == nil { | ||
| return h, nil | ||
| } | ||
| return h, os.WriteFile(dst, content, 0o644) |
| if _, err := os.Stat(dst); err == nil { | ||
| return h, nil | ||
| } | ||
| return h, os.WriteFile(dst, content, 0o644) |
| for _, rel := range paths { | ||
| abs := filepath.Join(workspace, rel) | ||
| var hash string | ||
| if b, rerr := os.ReadFile(abs); rerr == nil { |
| if err != nil { | ||
| return fmt.Errorf("read blob for %s: %w", f.Path, err) | ||
| } | ||
| if err := os.MkdirAll(filepath.Dir(abs), 0o755); err != nil { |
| if err := os.MkdirAll(filepath.Dir(abs), 0o755); err != nil { | ||
| return err | ||
| } | ||
| if err := os.WriteFile(abs, b, 0o644); err != nil { |
| if err := os.MkdirAll(filepath.Dir(abs), 0o755); err != nil { | ||
| return err | ||
| } | ||
| if err := os.WriteFile(abs, b, 0o644); err != nil { |
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Implements workspace checkpointing + rewind. Content-addressed snapshot store backed by modernc.org/sqlite, plus a Loop.BeforeMutate hook for auto-snapshotting sin_write/sin_edit.
Closes #194