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1d61cf20f9
...
d9de1c8c0a
10 changed files with 22 additions and 2139 deletions
14
.gitignore
vendored
14
.gitignore
vendored
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@ -14,13 +14,6 @@ bin/
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*.out
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*.bin
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# Bundle and archive files
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*.bundle
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*.tar.gz
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*.tar.bz2
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*.tar.xz
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*.zip
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# Temporary files
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*.tmp
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*.temp
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@ -93,6 +86,10 @@ Makefile
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# Package manager artifacts
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*.deb
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*.rpm
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*.zip
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*.tar.gz
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*.tar.bz2
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*.tar.xz
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# Recipes builds
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recipes/*.pkg.tar.*
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@ -121,9 +118,6 @@ test-output.txt
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/tmp/quick-*
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/tmp/final-*
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# Performance test files
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test_fast_resolver.sh
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# Allow scripts directory
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!scripts/
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!scripts/*.sh
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@ -1,212 +0,0 @@
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# Dependency Resolution Performance Improvements
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## Problem Statement
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The original zsvo dependency resolution was extremely slow because:
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- Each dependency lookup downloaded and parsed Sources.xz from Debian repositories
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- No caching existed between lookups
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- Linear search through entire Sources files for each package
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- Multiple HTTP requests for the same data
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## Solution Architecture
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### 1. Package Index Cache (`pkg/cache/package_index.go`)
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**Features:**
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- Persistent on-disk cache in JSON format
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- In-memory index with `map[string]*PackageEntry` for O(1) lookups
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- Separate binary-to-source mapping for fast resolution
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- Thread-safe with RWMutex
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- Automatic cache expiration (24 hours)
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**Performance:** Single download + parse, then unlimited fast lookups
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### 2. Fast Resolver (`pkg/resolver/fast_resolver.go`)
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**Features:**
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- O(1) package lookups using cached index
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- Recursive dependency resolution with cycle detection
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- Topological sort for correct build order
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- Fallback to original resolver for edge cases
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**Performance:** <1ms lookup time for cached packages
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### 3. Dependency Graph (`pkg/resolver/dependency_graph.go`)
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**Features:**
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- Full dependency graph construction
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- Cycle detection during graph building
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- Level-based topological sorting
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- Parallel build planning
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**Performance:** O(n) where n = number of dependencies
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### 4. Package Loader (`pkg/loader/package_loader.go`)
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**Features:**
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- Downloads Sources.xz only once per repository
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- Supports multiple compression formats (xz, gz, uncompressed)
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- Progress indicators during parsing
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- Automatic cache management
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**Performance:** One-time download cost, then instant access
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|
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### 5. Optimized Build Session (`cmd/optimized_build.go`)
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**Features:**
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- Integrates fast resolver into existing build pipeline
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- Graceful fallback to original resolver
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- Maintains compatibility with existing API
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- Warm cache detection and utilization
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|
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## Performance Results
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### Before Optimization
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- **Package lookup**: 2-10 seconds (HTTP download + parse)
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- **Dependency resolution**: O(n²) where n = dependencies
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- **Repeated lookups**: Same cost every time
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- **Network usage**: High (repeated downloads)
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|
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### After Optimization
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- **Package lookup**: <1ms (memory map lookup)
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- **Dependency resolution**: O(n) where n = dependencies
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- **Repeated lookups**: Instant (warm cache)
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- **Network usage**: Minimal (one-time download)
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### Cache Statistics (Debian stable/main)
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- **Packages indexed**: ~35,000 source packages
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- **Binary mappings**: ~80,000 binary packages
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- **Cache file size**: ~50MB compressed
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- **Load time**: ~2 seconds (cold), ~0.1 seconds (warm)
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## Implementation Details
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### Cache File Format
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```json
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{
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"packages": {
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"package-name": {
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"Package": "package-name",
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"Version": "1.0.0",
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"Directory": "pool/main/p/package",
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"DSCName": "package_1.0.0.dsc",
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"DSCSHA256": "abc123...",
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"Binaries": ["binary1", "binary2"],
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"BuildDepends": ["dep1", "dep2"]
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}
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},
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"binaries": {
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"binary1": "package-name",
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"binary2": "package-name"
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},
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"lastUpdate": "2024-01-01T00:00:00Z",
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"version": "1.0"
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}
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```
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|
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### Dependency Resolution Algorithm
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1. Load package index (or use cached version)
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2. Resolve root package using O(1) lookup
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3. Recursively resolve Build-Depends
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4. Build dependency graph with cycle detection
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5. Perform topological sort for build order
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6. Return ordered package list
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|
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### Cache Management
|
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- **Location**: `~/.cache/zsvo/` or `/var/cache/zsvo/`
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- **Expiration**: 24 hours (configurable)
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- **Cleanup**: Automatic removal of expired files
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- **Validation**: SHA256 checksums for integrity
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|
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## Integration Points
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### Existing Code Changes
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1. **cmd/install.go**: Add option to use optimized resolver
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2. **pkg/debian/**: Keep as fallback for compatibility
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3. **cmd/optimized_build.go**: New optimized build session
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|
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### Backward Compatibility
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- Original resolver remains available as fallback
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- Existing API unchanged
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- Gradual migration possible
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## Usage Examples
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### Basic Usage
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```go
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loader := loader.NewPackageLoader("/tmp/cache")
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err := loader.LoadDefaultRepository()
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resolver := loader.GetFastResolver()
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// O(1) package lookup
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pkg, err := resolver.ResolvePackage("cmake")
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// O(n) dependency resolution
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graph, err := resolver.ResolveDependencies("cmake")
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buildOrder := graph.GetBuildOrder()
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```
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### Performance Testing
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```bash
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cd test
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go run test_performance.go cmake
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```
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## Future Enhancements
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||||
|
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### Short Term
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- [ ] Multiple repository support (testing, unstable)
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- [ ] Incremental cache updates
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- [ ] Cache compression
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- [ ] Memory usage optimization
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||||
|
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### Long Term
|
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- [ ] Distributed cache sharing
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- [ ] Pre-built binary indices
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- [ ] Machine learning for dependency prediction
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- [ ] Real-time cache synchronization
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||||
|
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## Configuration Options
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||||
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### Environment Variables
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- `ZSVO_CACHE`: Cache directory override
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- `ZSVO_CACHE_TTL`: Cache time-to-live override
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### Runtime Options
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```go
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loader := loader.NewPackageLoader("/custom/cache")
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loader.LoadSources("mirror", "suite", "component")
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```
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## Security Considerations
|
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|
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- **Path validation**: Prevents path traversal in cache files
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- **Checksum verification**: SHA256 validation for cache integrity
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- **Permission handling**: Secure cache directory creation
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- **Network security**: HTTPS-only repository access
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||||
|
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## Monitoring and Debugging
|
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|
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### Cache Statistics
|
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```go
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pkgCount, binCount, expired := resolver.GetStats()
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fmt.Printf("Packages: %d, Binaries: %d, Fresh: %t\n",
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pkgCount, binCount, !expired)
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```
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|
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### Performance Metrics
|
||||
- Cache hit/miss ratios
|
||||
- Lookup latency distribution
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- Memory usage patterns
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- Network request counts
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||||
|
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## Conclusion
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|
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The optimized dependency resolution system achieves the target goals:
|
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- ✅ **<1ms lookup time** for cached packages
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- ✅ **Single download** per repository
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- ✅ **O(n) dependency resolution**
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- ✅ **Cycle detection** and topological sorting
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- ✅ **Backward compatibility** maintained
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This represents a **1000x+ performance improvement** for dependency resolution while maintaining the existing API and adding robust error handling and fallback mechanisms.
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|
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@ -1,206 +0,0 @@
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# Fast Resolver Integration Complete
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## 🎯 **Mission Accomplished: <1ms Dependency Resolution**
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The fast dependency resolver has been successfully integrated into the zsvo project and is ready for production use.
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|
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## 📋 **Integration Summary**
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### **New CLI Flag**
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```bash
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zsvo install --fast-resolver=true <package>
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```
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### **Performance Comparison**
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| Resolver Type | First Lookup | Subsequent Lookups | Network Usage |
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|--------------|--------------|-------------------|---------------|
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| Original | 2-10 seconds | 2-10 seconds | High (repeated) |
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| Fast (cold) | ~2 seconds | <1ms | One-time download |
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| Fast (warm) | <1ms | <1ms | None |
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|
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### **Cache Implementation**
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||||
- **Location**: `~/.cache/zsvo/` or `/var/cache/zsvo/`
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- **Format**: JSON-serialized package index
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- **Size**: ~50MB for Debian stable/main
|
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- **TTL**: 24 hours (configurable)
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- **Packages**: ~35,000 source packages
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||||
- **Binaries**: ~80,000 binary mappings
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|
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## 🏗️ **Architecture Overview**
|
||||
|
||||
```
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┌─────────────────┐ ┌──────────────────┐ ┌─────────────────┐
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│ CLI Command │───▶│ BuildSession │───▶│ FastResolver │
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│ --fast-resolver│ │ Interface │ │ │
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└─────────────────┘ └──────────────────┘ └─────────────────┘
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│ │
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▼ ▼
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┌──────────────────┐ ┌─────────────────┐
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│ Original Session │ │ PackageIndex │
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│ (fallback) │ │ (cache) │
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||||
└──────────────────┘ └─────────────────┘
|
||||
```
|
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|
||||
## 🔧 **Key Components**
|
||||
|
||||
### **1. BuildSession Interface**
|
||||
- Provides compatibility between original and optimized sessions
|
||||
- Enables seamless switching via `--fast-resolver` flag
|
||||
- Maintains existing API contracts
|
||||
|
||||
### **2. FastResolver Core**
|
||||
- O(1) package lookups using hash maps
|
||||
- Recursive dependency resolution
|
||||
- Cycle detection and topological sorting
|
||||
- Graceful fallback to original resolver
|
||||
|
||||
### **3. PackageIndex Cache**
|
||||
- Persistent JSON cache on disk
|
||||
- In-memory hash maps for instant access
|
||||
- Binary-to-source package mapping
|
||||
- Automatic expiration and cleanup
|
||||
|
||||
### **4. PackageLoader**
|
||||
- One-time Sources.xz download
|
||||
- Multi-format support (xz, gz, uncompressed)
|
||||
- Progress indicators and error handling
|
||||
- Cache validation and integrity checks
|
||||
|
||||
## 🚀 **Usage Examples**
|
||||
|
||||
### **Basic Usage**
|
||||
```bash
|
||||
# Use fast resolver (recommended)
|
||||
zsvo install --fast-resolver cmake
|
||||
|
||||
# Use original resolver (fallback)
|
||||
zsvo install --fast-resolver=false cmake
|
||||
|
||||
# Dry run to test performance
|
||||
zsvo install --dry-run --fast-resolver cmake
|
||||
```
|
||||
|
||||
### **Performance Testing**
|
||||
```bash
|
||||
# Run the performance test script
|
||||
./test_fast_resolver.sh
|
||||
```
|
||||
|
||||
## 📊 **Performance Metrics**
|
||||
|
||||
### **Target Achievement**
|
||||
- ✅ **Dependency lookup**: <1ms (achieved)
|
||||
- ✅ **Single download**: Sources.xz downloaded once
|
||||
- ✅ **In-memory index**: O(1) hash map lookups
|
||||
- ✅ **Recursive resolution**: Complete dependency graphs
|
||||
- ✅ **Cycle detection**: Prevents infinite loops
|
||||
- ✅ **Topological sort**: Correct build order
|
||||
|
||||
### **Real-world Performance**
|
||||
```bash
|
||||
# Original resolver (repeated network calls)
|
||||
$ time zsvo install --fast-resolver=false cmake
|
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real 0m8.234s
|
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user 0m0.156s
|
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sys 0m0.089s
|
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|
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# Fast resolver (warm cache)
|
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$ time zsvo install --fast-resolver=true cmake
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real 0m0.045s
|
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user 0m0.012s
|
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sys 0m0.008s
|
||||
```
|
||||
|
||||
**Performance improvement: 182x faster**
|
||||
|
||||
## 🔒 **Safety & Compatibility**
|
||||
|
||||
### **Backward Compatibility**
|
||||
- Original resolver remains available as fallback
|
||||
- Existing API unchanged
|
||||
- Gradual migration possible
|
||||
- No breaking changes
|
||||
|
||||
### **Error Handling**
|
||||
- Graceful fallback on cache failures
|
||||
- Network timeout handling
|
||||
- Corrupted cache detection
|
||||
- Automatic cache regeneration
|
||||
|
||||
### **Security**
|
||||
- Path traversal prevention
|
||||
- SHA256 checksum validation
|
||||
- HTTPS-only repository access
|
||||
- Safe cache directory creation
|
||||
|
||||
## 🧪 **Testing & Validation**
|
||||
|
||||
### **Unit Tests**
|
||||
```bash
|
||||
go test ./pkg/cache/...
|
||||
go test ./pkg/resolver/...
|
||||
go test ./pkg/loader/...
|
||||
```
|
||||
|
||||
### **Integration Tests**
|
||||
```bash
|
||||
go test ./cmd/...
|
||||
./test_fast_resolver.sh
|
||||
```
|
||||
|
||||
### **Performance Benchmarks**
|
||||
```bash
|
||||
cd test
|
||||
go run test_performance.go cmake
|
||||
```
|
||||
|
||||
## 📈 **Future Enhancements**
|
||||
|
||||
### **Short Term**
|
||||
- [ ] Multiple repository support
|
||||
- [ ] Incremental cache updates
|
||||
- [ ] Cache compression
|
||||
- [ ] Memory usage optimization
|
||||
|
||||
### **Long Term**
|
||||
- [ ] Distributed cache sharing
|
||||
- [ ] Pre-built binary indices
|
||||
- [ ] Machine learning optimization
|
||||
- [ ] Real-time synchronization
|
||||
|
||||
## 🎯 **Production Deployment**
|
||||
|
||||
### **Recommended Settings**
|
||||
```bash
|
||||
# Enable fast resolver by default in production
|
||||
export ZSVO_FAST_RESOLVER=true
|
||||
|
||||
# Configure cache location
|
||||
export ZSVO_CACHE=/var/cache/zsvo
|
||||
|
||||
# Set cache TTL (hours)
|
||||
export ZSVO_CACHE_TTL=24
|
||||
```
|
||||
|
||||
### **Monitoring**
|
||||
- Cache hit/miss ratios
|
||||
- Lookup latency distribution
|
||||
- Network request counts
|
||||
- Memory usage patterns
|
||||
|
||||
## ✅ **Success Criteria Met**
|
||||
|
||||
1. **Performance**: <1ms dependency lookup ✅
|
||||
2. **Efficiency**: Single download, unlimited lookups ✅
|
||||
3. **Correctness**: Recursive resolution + cycle detection ✅
|
||||
4. **Compatibility**: Backward compatible, graceful fallback ✅
|
||||
5. **Maintainability**: Clean, idiomatic Go code ✅
|
||||
6. **Security**: Path validation, checksums ✅
|
||||
|
||||
## 🏆 **Conclusion**
|
||||
|
||||
The fast dependency resolver successfully achieves the target **<1ms lookup performance** while maintaining full backward compatibility and adding robust error handling. This represents a **1000x+ performance improvement** for dependency resolution in the zsvo package manager.
|
||||
|
||||
The implementation is production-ready and can be enabled immediately with the `--fast-resolver` flag. Users will experience dramatically faster package installation times, especially for packages with complex dependency trees.
|
||||
|
||||
**Recommendation**: Enable `--fast-resolver=true` by default in production deployments for optimal user experience.
|
||||
|
|
@ -22,14 +22,6 @@ import (
|
|||
"github.com/spf13/cobra"
|
||||
)
|
||||
|
||||
// BuildSession interface for compatibility between original and optimized sessions
|
||||
type BuildSession interface {
|
||||
BuildPackageWithFallback(requestName string, asBuildDep bool, allowFailure bool, stack []string) (string, error)
|
||||
RefreshBuildEnv()
|
||||
InstallBuildDependency(dep, packagePath string) error
|
||||
BuildDependenciesParallel(graph *depGraph) error
|
||||
}
|
||||
|
||||
var InstallCmd = &cobra.Command{
|
||||
Use: "install <package> [package...]",
|
||||
Short: i18n.T("install_cmd"),
|
||||
|
|
@ -47,7 +39,6 @@ var InstallCmd = &cobra.Command{
|
|||
autoSource, _ := cmd.Flags().GetBool("auto-source")
|
||||
autoBuildDeps, _ := cmd.Flags().GetBool("auto-build-deps")
|
||||
dryRun, _ := cmd.Flags().GetBool("dry-run")
|
||||
fastResolver, _ := cmd.Flags().GetBool("fast-resolver")
|
||||
jobs, _ := cmd.Flags().GetInt("jobs")
|
||||
if jobs < 1 {
|
||||
jobs = runtime.NumCPU() // Use all CPU cores for maximum speed
|
||||
|
|
@ -62,7 +53,6 @@ var InstallCmd = &cobra.Command{
|
|||
pui.PrintInfo(fmt.Sprintf("Work directory: %s", workDir))
|
||||
pui.PrintInfo(fmt.Sprintf("Auto-source: %t", autoSource))
|
||||
pui.PrintInfo(fmt.Sprintf("Auto-build-deps: %t", autoBuildDeps))
|
||||
pui.PrintInfo(fmt.Sprintf("Fast resolver: %t", fastResolver))
|
||||
pui.PrintInfo(fmt.Sprintf("Parallel jobs: %d", jobs))
|
||||
pui.PrintInfo(fmt.Sprintf("Cooldown: %v", cooldown))
|
||||
}
|
||||
|
|
@ -70,13 +60,9 @@ var InstallCmd = &cobra.Command{
|
|||
installTargets := make([]string, 0, len(args))
|
||||
i := installer.NewInstaller(rootDir)
|
||||
|
||||
var session BuildSession
|
||||
var session *autoBuildSession
|
||||
if autoSource {
|
||||
if fastResolver {
|
||||
session = newOptimizedAutoBuildSession(workDir, autoBuildDeps, jobs, cooldown)
|
||||
} else {
|
||||
session = newAutoBuildSession(workDir, autoBuildDeps, jobs, cooldown)
|
||||
}
|
||||
session = newAutoBuildSession(workDir, autoBuildDeps, jobs, cooldown)
|
||||
}
|
||||
|
||||
for _, target := range args {
|
||||
|
|
@ -107,7 +93,7 @@ var InstallCmd = &cobra.Command{
|
|||
continue
|
||||
}
|
||||
|
||||
builtPackage, err := session.BuildPackageWithFallback(target, false, false, []string{})
|
||||
builtPackage, err := session.buildPackageWithFallback(target, false, false, []string{})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
|
@ -159,7 +145,6 @@ func init() {
|
|||
InstallCmd.Flags().Bool("dry-run", false, "Show what would be done without making changes")
|
||||
InstallCmd.Flags().IntP("jobs", "j", runtime.NumCPU(), "Number of parallel build jobs (default: all CPU cores)")
|
||||
InstallCmd.Flags().Duration("cooldown", 0, "Cooldown period between package builds (default: 0s for max speed)")
|
||||
InstallCmd.Flags().Bool("fast-resolver", false, "Use optimized dependency resolver with caching")
|
||||
}
|
||||
|
||||
func isInstallFileTarget(target string) (bool, error) {
|
||||
|
|
@ -389,11 +374,11 @@ func newAutoBuildSession(workDir string, autoBuildDeps bool, jobs int, cooldown
|
|||
jobs: jobs,
|
||||
cooldown: cooldown,
|
||||
}
|
||||
s.RefreshBuildEnv()
|
||||
s.refreshBuildEnv()
|
||||
return s
|
||||
}
|
||||
|
||||
func (s *autoBuildSession) RefreshBuildEnv() {
|
||||
func (s *autoBuildSession) refreshBuildEnv() {
|
||||
basePath := splitPathList(os.Getenv("PATH"))
|
||||
binPrefixes := []string{
|
||||
filepath.Join(s.toolRoot, "usr", "bin"),
|
||||
|
|
@ -421,7 +406,7 @@ func (s *autoBuildSession) RefreshBuildEnv() {
|
|||
s.builder.SetEnvOverride("CMAKE_PREFIX_PATH", joinPathListUnique(cmakePrefixes))
|
||||
}
|
||||
|
||||
func (s *autoBuildSession) BuildPackageWithFallback(requestName string, asBuildDep bool, allowFailure bool, stack []string) (string, error) {
|
||||
func (s *autoBuildSession) buildPackageWithFallback(requestName string, asBuildDep bool, allowFailure bool, stack []string) (string, error) {
|
||||
requestName = normalizePackageName(requestName)
|
||||
if requestName == "" {
|
||||
return "", fmt.Errorf("invalid package name")
|
||||
|
|
@ -437,7 +422,7 @@ func (s *autoBuildSession) BuildPackageWithFallback(requestName string, asBuildD
|
|||
// FAST CACHE CHECK: Check if already built this session
|
||||
if builtPath, ok := s.builtPackages[requestName]; ok {
|
||||
if asBuildDep {
|
||||
if err := s.InstallBuildDependency(requestName, builtPath); err != nil {
|
||||
if err := s.installBuildDependency(requestName, builtPath); err != nil {
|
||||
return "", err
|
||||
}
|
||||
}
|
||||
|
|
@ -456,7 +441,7 @@ func (s *autoBuildSession) BuildPackageWithFallback(requestName string, asBuildD
|
|||
// Found in cache!
|
||||
s.builtPackages[requestName] = cachePath
|
||||
if asBuildDep {
|
||||
if err := s.InstallBuildDependency(requestName, cachePath); err != nil {
|
||||
if err := s.installBuildDependency(requestName, cachePath); err != nil {
|
||||
return "", err
|
||||
}
|
||||
}
|
||||
|
|
@ -530,13 +515,13 @@ func (s *autoBuildSession) BuildPackageWithFallback(requestName string, asBuildD
|
|||
|
||||
// Build all collected dependencies in parallel
|
||||
if len(graph.nodes) > 0 {
|
||||
if err := s.BuildDependenciesParallel(graph); err != nil {
|
||||
if err := s.buildDependenciesParallel(graph); err != nil {
|
||||
// Silent error handling
|
||||
}
|
||||
}
|
||||
|
||||
// Refresh environment after building dependencies
|
||||
s.RefreshBuildEnv()
|
||||
s.refreshBuildEnv()
|
||||
}
|
||||
|
||||
// Now build the main package
|
||||
|
|
@ -585,7 +570,7 @@ func (s *autoBuildSession) installSystemPackage(pkg string, currentBuildingPacka
|
|||
}
|
||||
|
||||
// Try to build the dependency
|
||||
_, err = s.BuildPackageWithFallback(sourcePkg, true, false, []string{})
|
||||
_, err = s.buildPackageWithFallback(sourcePkg, true, false, []string{})
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to build system dependency %s (mapped from %s): %w", sourcePkg, pkg, err)
|
||||
}
|
||||
|
|
@ -597,7 +582,7 @@ func (s *autoBuildSession) installSystemPackage(pkg string, currentBuildingPacka
|
|||
packagePath = filepath.Join(s.workDir, sourcePkg+".pkg.tar.zst")
|
||||
}
|
||||
|
||||
if err := s.InstallBuildDependency(sourcePkg, packagePath); err != nil {
|
||||
if err := s.installBuildDependency(sourcePkg, packagePath); err != nil {
|
||||
return fmt.Errorf("failed to install system dependency %s: %w", sourcePkg, err)
|
||||
}
|
||||
|
||||
|
|
@ -619,7 +604,7 @@ func (s *autoBuildSession) ensureBuildDependency(dep string, stack []string) err
|
|||
}
|
||||
|
||||
fmt.Printf("Installing build dependency %s into %s...\n", dep, s.toolRoot)
|
||||
packagePath, err := s.BuildPackageWithFallback(dep, true, false, append(stack, dep))
|
||||
packagePath, err := s.buildPackageWithFallback(dep, true, false, append(stack, dep))
|
||||
if err != nil {
|
||||
fmt.Printf("Warning: failed to build dependency %s: %v (skipping installation)\n", dep, err)
|
||||
return nil // Don't try to install a package that failed to build
|
||||
|
|
@ -628,10 +613,10 @@ func (s *autoBuildSession) ensureBuildDependency(dep string, stack []string) err
|
|||
fmt.Printf("Warning: build succeeded but no package path returned for %s (skipping installation)\n", dep)
|
||||
return nil
|
||||
}
|
||||
return s.InstallBuildDependency(dep, packagePath)
|
||||
return s.installBuildDependency(dep, packagePath)
|
||||
}
|
||||
|
||||
func (s *autoBuildSession) InstallBuildDependency(dep, packagePath string) error {
|
||||
func (s *autoBuildSession) installBuildDependency(dep, packagePath string) error {
|
||||
dep = normalizePackageName(dep)
|
||||
if dep == "" {
|
||||
return fmt.Errorf("invalid build dependency name")
|
||||
|
|
@ -645,7 +630,7 @@ func (s *autoBuildSession) InstallBuildDependency(dep, packagePath string) error
|
|||
return fmt.Errorf("failed to install build dependency %s: %w", dep, err)
|
||||
}
|
||||
s.toolDepsReady[dep] = struct{}{}
|
||||
s.RefreshBuildEnv()
|
||||
s.refreshBuildEnv()
|
||||
return nil
|
||||
}
|
||||
|
||||
|
|
@ -763,7 +748,7 @@ func (s *autoBuildSession) collectAllDependencies(rootPkg string, graph *depGrap
|
|||
}
|
||||
|
||||
// buildDependenciesParallel builds all dependencies in parallel using worker pools
|
||||
func (s *autoBuildSession) BuildDependenciesParallel(graph *depGraph) error {
|
||||
func (s *autoBuildSession) buildDependenciesParallel(graph *depGraph) error {
|
||||
// Calculate dependency levels for topological sort
|
||||
graph.calculateLevels()
|
||||
|
||||
|
|
@ -861,7 +846,7 @@ func (s *autoBuildSession) BuildDependenciesParallel(graph *depGraph) error {
|
|||
}
|
||||
|
||||
// Refresh environment after each level
|
||||
s.RefreshBuildEnv()
|
||||
s.refreshBuildEnv()
|
||||
|
||||
// Level cooldown for thermal safety
|
||||
if s.cooldown > 0 && level < maxLevel {
|
||||
|
|
|
|||
|
|
@ -1,460 +0,0 @@
|
|||
package cmd
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"zsvo/pkg/builder"
|
||||
"zsvo/pkg/debian"
|
||||
"zsvo/pkg/installer"
|
||||
"zsvo/pkg/loader"
|
||||
"zsvo/pkg/resolver"
|
||||
)
|
||||
|
||||
// simplifyVersion creates a simple version string from Debian version
|
||||
func simplifyVersion(debianVersion string) string {
|
||||
v := strings.TrimSpace(debianVersion)
|
||||
if v == "" {
|
||||
return "0"
|
||||
}
|
||||
|
||||
// Remove epoch if present
|
||||
if idx := strings.IndexByte(v, ':'); idx >= 0 {
|
||||
v = v[idx+1:]
|
||||
}
|
||||
|
||||
// Remove Debian revision (everything after last dash)
|
||||
if idx := strings.Index(v, "-"); idx >= 0 {
|
||||
v = v[:idx]
|
||||
}
|
||||
|
||||
return v
|
||||
}
|
||||
|
||||
// OptimizedAutoBuildSession uses fast caching for dependency resolution
|
||||
type OptimizedAutoBuildSession struct {
|
||||
workDir string
|
||||
toolRoot string
|
||||
autoBuildDeps bool
|
||||
fastResolver *resolver.FastResolver
|
||||
packageLoader *loader.PackageLoader
|
||||
fallbackResolver *debian.Resolver // Fallback for edge cases
|
||||
depResolver *debian.DependencyResolver
|
||||
builder *builder.Builder
|
||||
toolInstaller *installer.Installer
|
||||
builtPackages map[string]string
|
||||
toolDepsReady map[string]struct{}
|
||||
buildingPackages map[string]struct{}
|
||||
processing map[string]struct{}
|
||||
processingMu sync.RWMutex
|
||||
jobs int
|
||||
cooldown time.Duration
|
||||
initialized bool
|
||||
initMu sync.Mutex
|
||||
}
|
||||
|
||||
// newOptimizedAutoBuildSession creates a new optimized auto-build session
|
||||
func newOptimizedAutoBuildSession(workDir string, autoBuildDeps bool, jobs int, cooldown time.Duration) *OptimizedAutoBuildSession {
|
||||
b := builder.NewBuilder(workDir)
|
||||
b.SetQuiet(true)
|
||||
|
||||
cacheDir := filepath.Join(workDir, ".cache")
|
||||
|
||||
s := &OptimizedAutoBuildSession{
|
||||
workDir: workDir,
|
||||
toolRoot: filepath.Join(workDir, "bootstrap-root"),
|
||||
autoBuildDeps: autoBuildDeps,
|
||||
fastResolver: resolver.NewFastResolver(cacheDir),
|
||||
packageLoader: loader.NewPackageLoader(cacheDir),
|
||||
fallbackResolver: debian.NewResolver(), // Keep as fallback
|
||||
depResolver: debian.NewDependencyResolver(),
|
||||
builder: b,
|
||||
toolInstaller: installer.NewInstaller(filepath.Join(workDir, "bootstrap-root")),
|
||||
builtPackages: make(map[string]string),
|
||||
toolDepsReady: make(map[string]struct{}),
|
||||
buildingPackages: make(map[string]struct{}),
|
||||
processing: make(map[string]struct{}),
|
||||
jobs: jobs,
|
||||
cooldown: cooldown,
|
||||
initialized: false,
|
||||
}
|
||||
s.RefreshBuildEnv()
|
||||
return s
|
||||
}
|
||||
|
||||
// initialize ensures the package index is loaded
|
||||
func (s *OptimizedAutoBuildSession) initialize() error {
|
||||
s.initMu.Lock()
|
||||
defer s.initMu.Unlock()
|
||||
|
||||
if s.initialized {
|
||||
return nil
|
||||
}
|
||||
|
||||
fmt.Printf("🚀 Initializing fast dependency resolver...\n")
|
||||
|
||||
// Load default repository
|
||||
if err := s.packageLoader.LoadDefaultRepository(); err != nil {
|
||||
fmt.Printf("⚠️ Failed to load default repository: %v (will use fallback)\n", err)
|
||||
// Continue with fallback resolver
|
||||
} else {
|
||||
// Show stats
|
||||
pkgCount, binCount, expired := s.fastResolver.GetStats()
|
||||
fmt.Printf("✅ Fast resolver ready: %d packages, %d binaries (fresh: %t)\n",
|
||||
pkgCount, binCount, !expired)
|
||||
}
|
||||
|
||||
s.initialized = true
|
||||
return nil
|
||||
}
|
||||
|
||||
// BuildPackageWithFallback uses fast resolver with fallback to original
|
||||
func (s *OptimizedAutoBuildSession) BuildPackageWithFallback(requestName string, asBuildDep bool, allowFailure bool, stack []string) (string, error) {
|
||||
// Ensure initialization
|
||||
if err := s.initialize(); err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
requestName = normalizePackageName(requestName)
|
||||
if requestName == "" {
|
||||
return "", fmt.Errorf("invalid package name")
|
||||
}
|
||||
|
||||
if len(stack) >= maxAutoBuildDepth {
|
||||
return "", fmt.Errorf("dependency chain is too deep while building %s: %s", requestName, strings.Join(append(stack, requestName), " -> "))
|
||||
}
|
||||
if _, exists := s.buildingPackages[requestName]; exists {
|
||||
return "", fmt.Errorf("dependency cycle detected: %s", strings.Join(append(stack, requestName), " -> "))
|
||||
}
|
||||
|
||||
// FAST CACHE CHECK: Check if already built this session
|
||||
if builtPath, ok := s.builtPackages[requestName]; ok {
|
||||
if asBuildDep {
|
||||
if err := s.InstallBuildDependency(requestName, builtPath); err != nil {
|
||||
return "", err
|
||||
}
|
||||
}
|
||||
return builtPath, nil
|
||||
}
|
||||
|
||||
// FAST CACHE CHECK: Check local cache directory for existing package
|
||||
cachePaths := []string{
|
||||
filepath.Join(s.workDir, "packages", requestName, requestName+".pkg.tar.zst"),
|
||||
filepath.Join(s.workDir, "packages", requestName+".pkg.tar.zst"),
|
||||
filepath.Join(s.workDir, requestName+".pkg.tar.zst"),
|
||||
}
|
||||
|
||||
for _, cachePath := range cachePaths {
|
||||
if info, err := os.Stat(cachePath); err == nil && !info.IsDir() {
|
||||
// Found in cache!
|
||||
s.builtPackages[requestName] = cachePath
|
||||
if asBuildDep {
|
||||
if err := s.InstallBuildDependency(requestName, cachePath); err != nil {
|
||||
return "", err
|
||||
}
|
||||
}
|
||||
fmt.Printf("📦 %s found in cache: %s\n", requestName, cachePath)
|
||||
return cachePath, nil
|
||||
}
|
||||
}
|
||||
|
||||
s.buildingPackages[requestName] = struct{}{}
|
||||
defer delete(s.buildingPackages, requestName)
|
||||
|
||||
// Try fast resolver first
|
||||
srcInfo, err := s.resolveSourceFast(requestName)
|
||||
if err != nil {
|
||||
// Fall back to original resolver
|
||||
fmt.Printf("🔄 Fast resolver failed for %s, using fallback: %v\n", requestName, err)
|
||||
srcInfo, err = s.fallbackResolver.ResolveSource(requestName)
|
||||
if err != nil {
|
||||
if !allowFailure {
|
||||
return "", fmt.Errorf("failed to resolve source for %s: %w", requestName, err)
|
||||
}
|
||||
return "", fmt.Errorf("build failed - install missing dependencies manually")
|
||||
}
|
||||
}
|
||||
|
||||
rcp := autoRecipeFromDebian(srcInfo)
|
||||
normalizedRecipeName := normalizePackageName(rcp.Name)
|
||||
if normalizedRecipeName != "" && normalizedRecipeName != requestName {
|
||||
// Alias resolved source package name to requested name.
|
||||
if _, exists := s.buildingPackages[normalizedRecipeName]; exists {
|
||||
return "", fmt.Errorf("dependency cycle detected: %s", strings.Join(append(stack, requestName, normalizedRecipeName), " -> "))
|
||||
}
|
||||
}
|
||||
|
||||
fmt.Printf("Building %s from %s...\n", rcp.GetPackageName(), srcInfo.DSCURL)
|
||||
|
||||
// Auto-resolve dependencies using fast resolver
|
||||
if len(srcInfo.BuildDepends) > 0 && s.autoBuildDeps {
|
||||
fmt.Printf("🔍 Resolving %d build dependencies with fast resolver...\n", len(srcInfo.BuildDepends))
|
||||
|
||||
// Create dependency graph and collect all dependencies
|
||||
graph := newDepGraph()
|
||||
for _, dep := range srcInfo.BuildDepends {
|
||||
depName := extractPackageNameFromConstraint(dep)
|
||||
if depName == "" {
|
||||
continue
|
||||
}
|
||||
|
||||
// Check if this is a Debian-specific package that should be skipped
|
||||
sourcePkg := mapDebianPackageToSource(depName)
|
||||
if sourcePkg == "" {
|
||||
// Try comprehensive resolver
|
||||
sourcePkg, _ = s.depResolver.BinaryToSource(depName)
|
||||
if sourcePkg == "" {
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
// Check if already built or available
|
||||
if _, built := s.builtPackages[sourcePkg]; built {
|
||||
continue
|
||||
}
|
||||
if toolAlreadyAvailable(sourcePkg) {
|
||||
s.toolDepsReady[sourcePkg] = struct{}{}
|
||||
continue
|
||||
}
|
||||
if _, ready := s.toolDepsReady[sourcePkg]; ready {
|
||||
continue
|
||||
}
|
||||
|
||||
// Collect all dependencies recursively using fast resolver
|
||||
if err := s.collectAllDependenciesFast(sourcePkg, graph, []string{requestName}); err != nil {
|
||||
// Silent error handling for dependencies
|
||||
}
|
||||
}
|
||||
|
||||
// Build all collected dependencies in parallel
|
||||
if len(graph.nodes) > 0 {
|
||||
if err := s.BuildDependenciesParallel(graph); err != nil {
|
||||
// Silent error handling
|
||||
}
|
||||
}
|
||||
|
||||
// Refresh environment after building dependencies
|
||||
s.RefreshBuildEnv()
|
||||
}
|
||||
|
||||
// Now build the main package
|
||||
var buildErr error
|
||||
for attempt := 0; attempt < 2; attempt++ {
|
||||
buildErr = s.builder.Build(rcp)
|
||||
if buildErr == nil {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
builtPackage := filepath.Join(rcp.GetPackageDir(s.workDir), rcp.GetPackageFileName())
|
||||
|
||||
if buildErr != nil {
|
||||
if !allowFailure {
|
||||
return "", fmt.Errorf("failed to auto-build %s: %w", requestName, buildErr)
|
||||
}
|
||||
return "", fmt.Errorf("build failed for %s (allowFailure set): %w", requestName, buildErr)
|
||||
}
|
||||
|
||||
s.builtPackages[rcp.Name] = builtPackage
|
||||
return builtPackage, nil
|
||||
}
|
||||
|
||||
// resolveSourceFast tries to resolve source using the fast resolver
|
||||
func (s *OptimizedAutoBuildSession) resolveSourceFast(pkgName string) (*debian.SourceInfo, error) {
|
||||
if !s.initialized {
|
||||
return nil, fmt.Errorf("resolver not initialized")
|
||||
}
|
||||
|
||||
// Try fast lookup
|
||||
pkg, err := s.fastResolver.ResolvePackage(pkgName)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Convert to debian.SourceInfo format
|
||||
return &debian.SourceInfo{
|
||||
RequestedPackage: pkgName,
|
||||
SourcePackage: pkg.Name,
|
||||
DSCURL: fmt.Sprintf("https://deb.debian.org/debian/%s/%s", pkg.Directory, pkg.DSCName),
|
||||
DSCSHA256: pkg.DSCSHA256,
|
||||
DebianVersion: pkg.Version,
|
||||
UpstreamVersion: simplifyVersion(pkg.Version),
|
||||
Suite: "stable",
|
||||
Component: "main",
|
||||
BuildDepends: pkg.BuildDepends,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// collectAllDependenciesFast recursively collects dependencies using the fast resolver
|
||||
func (s *OptimizedAutoBuildSession) collectAllDependenciesFast(rootPkg string, graph *depGraph, stack []string) error {
|
||||
rootPkg = normalizePackageName(rootPkg)
|
||||
if rootPkg == "" {
|
||||
return fmt.Errorf("invalid package name")
|
||||
}
|
||||
|
||||
if len(stack) >= maxAutoBuildDepth {
|
||||
return fmt.Errorf("dependency chain is too deep while building %s", rootPkg)
|
||||
}
|
||||
|
||||
// Check for cycles
|
||||
for _, s := range stack {
|
||||
if s == rootPkg {
|
||||
return fmt.Errorf("dependency cycle detected: %s", strings.Join(append(stack, rootPkg), " -> "))
|
||||
}
|
||||
}
|
||||
|
||||
// Check if already being processed globally at session level
|
||||
s.processingMu.Lock()
|
||||
if _, exists := s.processing[rootPkg]; exists {
|
||||
s.processingMu.Unlock()
|
||||
return nil // Already being processed by another goroutine
|
||||
}
|
||||
// Mark as processing
|
||||
s.processing[rootPkg] = struct{}{}
|
||||
s.processingMu.Unlock()
|
||||
|
||||
// Check if already in graph with srcInfo
|
||||
graph.mu.RLock()
|
||||
node, exists := graph.nodes[rootPkg]
|
||||
if exists && node.srcInfo != nil {
|
||||
graph.mu.RUnlock()
|
||||
return nil
|
||||
}
|
||||
graph.mu.RUnlock()
|
||||
|
||||
// Resolve source using fast resolver
|
||||
srcInfo, err := s.resolveSourceFast(rootPkg)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to resolve source for %s: %w", rootPkg, err)
|
||||
}
|
||||
|
||||
// Create recipe to get proper package name
|
||||
rcp := autoRecipeFromDebian(srcInfo)
|
||||
pkgName := rcp.Name
|
||||
|
||||
// Update graph with proper locking
|
||||
graph.mu.Lock()
|
||||
node, exists = graph.nodes[pkgName]
|
||||
if !exists {
|
||||
node = &depNode{
|
||||
name: pkgName,
|
||||
deps: []string{},
|
||||
dependents: []string{},
|
||||
buildDepends: []string{},
|
||||
level: -1,
|
||||
}
|
||||
graph.nodes[pkgName] = node
|
||||
}
|
||||
// Only update if not already set (first one wins)
|
||||
if node.srcInfo == nil {
|
||||
node.srcInfo = srcInfo
|
||||
node.recipe = rcp
|
||||
node.buildDepends = srcInfo.BuildDepends
|
||||
}
|
||||
graph.mu.Unlock()
|
||||
|
||||
// If this node was already processed by another goroutine, return early
|
||||
if exists && node.srcInfo != nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
// Collect all dependency names first
|
||||
var depsToProcess []string
|
||||
for _, dep := range srcInfo.BuildDepends {
|
||||
depName := extractPackageNameFromConstraint(dep)
|
||||
if depName == "" {
|
||||
continue
|
||||
}
|
||||
|
||||
// Map to source package
|
||||
sourcePkg := mapDebianPackageToSource(depName)
|
||||
if sourcePkg == "" {
|
||||
sourcePkg, _ = s.depResolver.BinaryToSource(depName)
|
||||
}
|
||||
if sourcePkg == "" || toolAlreadyAvailable(sourcePkg) {
|
||||
continue
|
||||
}
|
||||
|
||||
// Add dependency relationship
|
||||
graph.addDependency(pkgName, sourcePkg)
|
||||
|
||||
// Check if already in graph with lock
|
||||
graph.mu.RLock()
|
||||
depNode, depExists := graph.nodes[sourcePkg]
|
||||
alreadyProcessing := depExists && depNode.srcInfo != nil
|
||||
graph.mu.RUnlock()
|
||||
|
||||
if !alreadyProcessing {
|
||||
depsToProcess = append(depsToProcess, sourcePkg)
|
||||
}
|
||||
}
|
||||
|
||||
// Process dependencies sequentially to avoid race conditions
|
||||
for _, dep := range depsToProcess {
|
||||
s.collectAllDependenciesFast(dep, graph, append(stack, pkgName))
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// RefreshBuildEnv refreshes the build environment
|
||||
func (s *OptimizedAutoBuildSession) RefreshBuildEnv() {
|
||||
// Same implementation as original
|
||||
basePath := splitPathList(os.Getenv("PATH"))
|
||||
binPrefixes := []string{
|
||||
filepath.Join(s.toolRoot, "usr", "bin"),
|
||||
filepath.Join(s.toolRoot, "bin"),
|
||||
filepath.Join(s.toolRoot, "usr", "sbin"),
|
||||
filepath.Join(s.toolRoot, "sbin"),
|
||||
}
|
||||
mergedPath := joinPathListUnique(append(binPrefixes, basePath...))
|
||||
s.builder.SetEnvOverride("PATH", mergedPath)
|
||||
|
||||
pkgConfigPath := splitPathList(os.Getenv("PKG_CONFIG_PATH"))
|
||||
pkgConfigPrefixes := []string{
|
||||
filepath.Join(s.toolRoot, "usr", "lib", "pkgconfig"),
|
||||
filepath.Join(s.toolRoot, "usr", "lib64", "pkgconfig"),
|
||||
filepath.Join(s.toolRoot, "usr", "share", "pkgconfig"),
|
||||
filepath.Join(s.toolRoot, "lib", "pkgconfig"),
|
||||
filepath.Join(s.toolRoot, "lib64", "pkgconfig"),
|
||||
}
|
||||
s.builder.SetEnvOverride("PKG_CONFIG_PATH", joinPathListUnique(append(pkgConfigPrefixes, pkgConfigPath...)))
|
||||
cmakePrefixes := []string{
|
||||
filepath.Join(s.toolRoot, "usr"),
|
||||
filepath.Join(s.toolRoot),
|
||||
}
|
||||
cmakePrefixes = append(cmakePrefixes, splitPathList(os.Getenv("CMAKE_PREFIX_PATH"))...)
|
||||
s.builder.SetEnvOverride("CMAKE_PREFIX_PATH", joinPathListUnique(cmakePrefixes))
|
||||
}
|
||||
|
||||
// InstallBuildDependency installs a build dependency
|
||||
func (s *OptimizedAutoBuildSession) InstallBuildDependency(dep, packagePath string) error {
|
||||
// Same implementation as original
|
||||
dep = normalizePackageName(dep)
|
||||
if dep == "" {
|
||||
return fmt.Errorf("invalid build dependency name")
|
||||
}
|
||||
if _, ready := s.toolDepsReady[dep]; ready {
|
||||
return nil
|
||||
}
|
||||
|
||||
fmt.Printf("Installing build dependency %s into %s...\n", dep, s.toolRoot)
|
||||
if err := s.toolInstaller.Install(packagePath); err != nil {
|
||||
return fmt.Errorf("failed to install build dependency %s: %w", dep, err)
|
||||
}
|
||||
s.toolDepsReady[dep] = struct{}{}
|
||||
s.RefreshBuildEnv()
|
||||
return nil
|
||||
}
|
||||
|
||||
// BuildDependenciesParallel builds dependencies in parallel
|
||||
func (s *OptimizedAutoBuildSession) BuildDependenciesParallel(graph *depGraph) error {
|
||||
// Reuse the same implementation as original
|
||||
// This is a complex method that builds packages in parallel respecting dependency levels
|
||||
// For now, return nil to allow compilation
|
||||
return nil
|
||||
}
|
||||
283
pkg/cache/package_index.go
vendored
283
pkg/cache/package_index.go
vendored
|
|
@ -1,283 +0,0 @@
|
|||
package cache
|
||||
|
||||
import (
|
||||
"crypto/sha256"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
// PackageIndex represents a cached index of Debian packages
|
||||
type PackageIndex struct {
|
||||
mu sync.RWMutex
|
||||
packages map[string]*PackageEntry
|
||||
binaries map[string]string // binary package -> source package mapping
|
||||
lastUpdate time.Time
|
||||
version string
|
||||
}
|
||||
|
||||
// PackageEntry represents a single package entry in the index
|
||||
type PackageEntry struct {
|
||||
Package string
|
||||
Version string
|
||||
Directory string
|
||||
DSCName string
|
||||
DSCSHA256 string
|
||||
Binaries []string
|
||||
BuildDepends []string
|
||||
}
|
||||
|
||||
// IndexCache manages persistent package indices
|
||||
type IndexCache struct {
|
||||
cacheDir string
|
||||
indices map[string]*PackageIndex // key: mirror:suite:component
|
||||
mu sync.RWMutex
|
||||
}
|
||||
|
||||
// NewIndexCache creates a new index cache manager
|
||||
func NewIndexCache(cacheDir string) *IndexCache {
|
||||
if cacheDir == "" {
|
||||
cacheDir = defaultCacheDir()
|
||||
}
|
||||
return &IndexCache{
|
||||
cacheDir: cacheDir,
|
||||
indices: make(map[string]*PackageIndex),
|
||||
}
|
||||
}
|
||||
|
||||
// GetIndex retrieves or creates a package index for the given mirror/suite/component
|
||||
func (c *IndexCache) GetIndex(mirror, suite, component string) (*PackageIndex, error) {
|
||||
key := fmt.Sprintf("%s:%s:%s", mirror, suite, component)
|
||||
|
||||
// Fast path: check if already loaded
|
||||
c.mu.RLock()
|
||||
if idx, exists := c.indices[key]; exists {
|
||||
c.mu.RUnlock()
|
||||
return idx, nil
|
||||
}
|
||||
c.mu.RUnlock()
|
||||
|
||||
// Slow path: load from disk or create new
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
|
||||
// Double-check after acquiring write lock
|
||||
if idx, exists := c.indices[key]; exists {
|
||||
return idx, nil
|
||||
}
|
||||
|
||||
// Try to load from disk
|
||||
cacheFile := c.cacheFilePath(mirror, suite, component)
|
||||
if idx, err := c.loadIndexFromFile(cacheFile); err == nil {
|
||||
c.indices[key] = idx
|
||||
return idx, nil
|
||||
}
|
||||
|
||||
// Create new empty index
|
||||
idx := &PackageIndex{
|
||||
packages: make(map[string]*PackageEntry),
|
||||
binaries: make(map[string]string),
|
||||
lastUpdate: time.Time{},
|
||||
version: "1.0",
|
||||
}
|
||||
c.indices[key] = idx
|
||||
return idx, nil
|
||||
}
|
||||
|
||||
// LookupPackage finds a package by name in the index (O(1) lookup)
|
||||
func (idx *PackageIndex) LookupPackage(name string) (*PackageEntry, bool) {
|
||||
idx.mu.RLock()
|
||||
defer idx.mu.RUnlock()
|
||||
|
||||
entry, exists := idx.packages[name]
|
||||
return entry, exists
|
||||
}
|
||||
|
||||
// LookupBinary finds a binary package and returns its source package
|
||||
func (idx *PackageIndex) LookupBinary(binaryName string) (string, bool) {
|
||||
idx.mu.RLock()
|
||||
defer idx.mu.RUnlock()
|
||||
|
||||
source, exists := idx.binaries[binaryName]
|
||||
return source, exists
|
||||
}
|
||||
|
||||
// AddPackage adds a package to the index
|
||||
func (idx *PackageIndex) AddPackage(entry *PackageEntry) {
|
||||
idx.mu.Lock()
|
||||
defer idx.mu.Unlock()
|
||||
|
||||
idx.packages[entry.Package] = entry
|
||||
|
||||
// Index binaries for fast lookup
|
||||
for _, binary := range entry.Binaries {
|
||||
if binary != "" && binary != entry.Package {
|
||||
idx.binaries[binary] = entry.Package
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Save persists the index to disk
|
||||
func (idx *PackageIndex) Save(cacheFile string) error {
|
||||
idx.mu.RLock()
|
||||
defer idx.mu.RUnlock()
|
||||
|
||||
// Ensure cache directory exists
|
||||
if err := os.MkdirAll(filepath.Dir(cacheFile), 0755); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Create temporary file
|
||||
tempFile := cacheFile + ".tmp"
|
||||
f, err := os.Create(tempFile)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
// Write JSON
|
||||
encoder := json.NewEncoder(f)
|
||||
encoder.SetIndent("", " ")
|
||||
|
||||
data := struct {
|
||||
Packages map[string]*PackageEntry
|
||||
Binaries map[string]string
|
||||
LastUpdate time.Time
|
||||
Version string
|
||||
}{
|
||||
Packages: idx.packages,
|
||||
Binaries: idx.binaries,
|
||||
LastUpdate: time.Now(),
|
||||
Version: idx.version,
|
||||
}
|
||||
|
||||
if err := encoder.Encode(data); err != nil {
|
||||
os.Remove(tempFile)
|
||||
return err
|
||||
}
|
||||
|
||||
// Atomic rename
|
||||
if err := os.Rename(tempFile, cacheFile); err != nil {
|
||||
os.Remove(tempFile)
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// IsExpired checks if the cache is older than maxAge
|
||||
func (idx *PackageIndex) IsExpired(maxAge time.Duration) bool {
|
||||
idx.mu.RLock()
|
||||
defer idx.mu.RUnlock()
|
||||
|
||||
return time.Since(idx.lastUpdate) > maxAge
|
||||
}
|
||||
|
||||
// GetStats returns index statistics
|
||||
func (idx *PackageIndex) GetStats() (packageCount int, binaryCount int) {
|
||||
idx.mu.RLock()
|
||||
defer idx.mu.RUnlock()
|
||||
|
||||
return len(idx.packages), len(idx.binaries)
|
||||
}
|
||||
|
||||
// loadIndexFromFile loads an index from disk
|
||||
func (c *IndexCache) loadIndexFromFile(cacheFile string) (*PackageIndex, error) {
|
||||
f, err := os.Open(cacheFile)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
var data struct {
|
||||
Packages map[string]*PackageEntry
|
||||
Binaries map[string]string
|
||||
LastUpdate time.Time
|
||||
Version string
|
||||
}
|
||||
|
||||
if err := json.NewDecoder(f).Decode(&data); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
idx := &PackageIndex{
|
||||
packages: data.Packages,
|
||||
binaries: data.Binaries,
|
||||
lastUpdate: data.LastUpdate,
|
||||
version: data.Version,
|
||||
}
|
||||
|
||||
// Validate integrity
|
||||
if idx.packages == nil || idx.binaries == nil {
|
||||
return nil, fmt.Errorf("invalid index file: missing maps")
|
||||
}
|
||||
|
||||
return idx, nil
|
||||
}
|
||||
|
||||
// CacheFilePath returns the cache file path for given parameters (public method)
|
||||
func (c *IndexCache) CacheFilePath(mirror, suite, component string) string {
|
||||
return c.cacheFilePath(mirror, suite, component)
|
||||
}
|
||||
|
||||
// cacheFilePath returns the cache file path for given parameters
|
||||
func (c *IndexCache) cacheFilePath(mirror, suite, component string) string {
|
||||
// Create safe filename from mirror URL
|
||||
mirrorHash := sha256.Sum256([]byte(mirror))
|
||||
mirrorShort := fmt.Sprintf("%x", mirrorHash)[:8]
|
||||
|
||||
filename := fmt.Sprintf("package_index_%s_%s_%s.json", mirrorShort, suite, component)
|
||||
return filepath.Join(c.cacheDir, filename)
|
||||
}
|
||||
|
||||
// defaultCacheDir returns the default cache directory
|
||||
func defaultCacheDir() string {
|
||||
if dir := os.Getenv("ZSVO_CACHE"); dir != "" {
|
||||
return dir
|
||||
}
|
||||
if home, err := os.UserHomeDir(); err == nil {
|
||||
return filepath.Join(home, ".cache", "zsvo")
|
||||
}
|
||||
return "/var/cache/zsvo"
|
||||
}
|
||||
|
||||
// Clear removes all cached indices
|
||||
func (c *IndexCache) Clear() error {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
|
||||
c.indices = make(map[string]*PackageIndex)
|
||||
return os.RemoveAll(c.cacheDir)
|
||||
}
|
||||
|
||||
// CleanupExpired removes expired cache files
|
||||
func (c *IndexCache) CleanupExpired(maxAge time.Duration) error {
|
||||
entries, err := os.ReadDir(c.cacheDir)
|
||||
if err != nil {
|
||||
if os.IsNotExist(err) {
|
||||
return nil
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
cutoff := time.Now().Add(-maxAge)
|
||||
for _, entry := range entries {
|
||||
if entry.IsDir() {
|
||||
continue
|
||||
}
|
||||
|
||||
info, err := entry.Info()
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
|
||||
if info.ModTime().Before(cutoff) {
|
||||
os.Remove(filepath.Join(c.cacheDir, entry.Name()))
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -1,308 +0,0 @@
|
|||
package loader
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"compress/gzip"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"path"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"zsvo/pkg/cache"
|
||||
"zsvo/pkg/resolver"
|
||||
|
||||
"github.com/ulikunitz/xz"
|
||||
)
|
||||
|
||||
// PackageLoader populates the cache from Debian Sources files
|
||||
type PackageLoader struct {
|
||||
client *http.Client
|
||||
cache *cache.IndexCache
|
||||
fastResolver *resolver.FastResolver
|
||||
}
|
||||
|
||||
// NewPackageLoader creates a new package loader
|
||||
func NewPackageLoader(cacheDir string) *PackageLoader {
|
||||
return &PackageLoader{
|
||||
client: &http.Client{
|
||||
Timeout: 30 * time.Second,
|
||||
},
|
||||
cache: cache.NewIndexCache(cacheDir),
|
||||
fastResolver: resolver.NewFastResolver(cacheDir),
|
||||
}
|
||||
}
|
||||
|
||||
// LoadSources loads and parses Sources.xz from the given repository
|
||||
func (l *PackageLoader) LoadSources(mirror, suite, component string) error {
|
||||
fmt.Printf("📦 Loading package index for %s/%s/%s...\n", mirror, suite, component)
|
||||
|
||||
// Load or create index
|
||||
idx, err := l.cache.GetIndex(mirror, suite, component)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to get index: %w", err)
|
||||
}
|
||||
|
||||
// Check if cache is fresh (less than 24 hours old)
|
||||
if !idx.IsExpired(24 * time.Hour) {
|
||||
pkgCount, binCount := idx.GetStats()
|
||||
fmt.Printf("✅ Using fresh cache: %d packages, %d binaries\n", pkgCount, binCount)
|
||||
|
||||
// Load into fast resolver
|
||||
if err := l.fastResolver.LoadIndex(mirror, suite, component); err != nil {
|
||||
return fmt.Errorf("failed to load index into resolver: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
fmt.Printf("🔄 Cache expired or missing, downloading fresh data...\n")
|
||||
|
||||
// Download Sources.xz
|
||||
if err := l.downloadAndParseSources(mirror, suite, component, idx); err != nil {
|
||||
return fmt.Errorf("failed to download and parse sources: %w", err)
|
||||
}
|
||||
|
||||
// Save to disk
|
||||
cacheFile := l.cache.CacheFilePath(mirror, suite, component)
|
||||
if err := idx.Save(cacheFile); err != nil {
|
||||
return fmt.Errorf("failed to save cache: %w", err)
|
||||
}
|
||||
|
||||
pkgCount, binCount := idx.GetStats()
|
||||
fmt.Printf("✅ Loaded %d packages, %d binaries\n", pkgCount, binCount)
|
||||
|
||||
// Load into fast resolver
|
||||
if err := l.fastResolver.LoadIndex(mirror, suite, component); err != nil {
|
||||
return fmt.Errorf("failed to load index into resolver: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// downloadAndParseSources downloads and parses Sources.xz file
|
||||
func (l *PackageLoader) downloadAndParseSources(mirror, suite, component string, idx *cache.PackageIndex) error {
|
||||
// Try different compression formats
|
||||
formats := []struct {
|
||||
ext string
|
||||
decoder func(io.Reader) (io.Reader, error)
|
||||
}{
|
||||
{"xz", func(r io.Reader) (io.Reader, error) { return xz.NewReader(r) }},
|
||||
{"gz", func(r io.Reader) (io.Reader, error) { return gzip.NewReader(r) }},
|
||||
{"", func(r io.Reader) (io.Reader, error) { return r, nil }},
|
||||
}
|
||||
|
||||
for _, format := range formats {
|
||||
url := l.buildSourcesURL(mirror, suite, component, format.ext)
|
||||
|
||||
resp, err := l.client.Get(url)
|
||||
if err != nil {
|
||||
continue // Try next format
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
continue // Try next format
|
||||
}
|
||||
|
||||
// Decode and parse
|
||||
reader, err := format.decoder(resp.Body)
|
||||
if err != nil {
|
||||
continue // Try next format
|
||||
}
|
||||
|
||||
return l.parseSourcesFile(reader, idx)
|
||||
}
|
||||
|
||||
return fmt.Errorf("failed to download Sources file in any format")
|
||||
}
|
||||
|
||||
// parseSourcesFile parses a Sources file and populates the index
|
||||
func (l *PackageLoader) parseSourcesFile(reader io.Reader, idx *cache.PackageIndex) error {
|
||||
scanner := bufio.NewScanner(reader)
|
||||
scanner.Buffer(make([]byte, 0, 64*1024), 8*1024*1024)
|
||||
|
||||
paragraph := make([]string, 0, 32)
|
||||
count := 0
|
||||
|
||||
flush := func() error {
|
||||
if len(paragraph) == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
entry, err := l.parseSourcesParagraph(paragraph)
|
||||
paragraph = paragraph[:0]
|
||||
if err != nil {
|
||||
return nil // Skip invalid entries
|
||||
}
|
||||
|
||||
// Add to index
|
||||
cacheEntry := &cache.PackageEntry{
|
||||
Package: entry.Package,
|
||||
Version: entry.Version,
|
||||
Directory: entry.Directory,
|
||||
DSCName: entry.DSCName,
|
||||
DSCSHA256: entry.DSCSHA256,
|
||||
Binaries: entry.Binaries,
|
||||
BuildDepends: entry.BuildDepends,
|
||||
}
|
||||
|
||||
idx.AddPackage(cacheEntry)
|
||||
count++
|
||||
|
||||
// Progress indicator
|
||||
if count%1000 == 0 {
|
||||
fmt.Printf(" Parsed %d packages...\n", count)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
for scanner.Scan() {
|
||||
line := scanner.Text()
|
||||
if strings.TrimSpace(line) == "" {
|
||||
if err := flush(); err != nil {
|
||||
return err
|
||||
}
|
||||
continue
|
||||
}
|
||||
paragraph = append(paragraph, line)
|
||||
}
|
||||
|
||||
// Flush last paragraph
|
||||
if err := flush(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if err := scanner.Err(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
fmt.Printf(" Parsed %d packages total\n", count)
|
||||
return nil
|
||||
}
|
||||
|
||||
// parseSourcesParagraph parses a single package paragraph
|
||||
func (l *PackageLoader) parseSourcesParagraph(lines []string) (*SourceEntry, error) {
|
||||
fields := make(map[string]string)
|
||||
var currentKey string
|
||||
|
||||
for _, raw := range lines {
|
||||
if strings.HasPrefix(raw, " ") || strings.HasPrefix(raw, "\t") {
|
||||
if currentKey == "" {
|
||||
continue
|
||||
}
|
||||
fields[currentKey] += "\n" + strings.TrimSpace(raw)
|
||||
continue
|
||||
}
|
||||
|
||||
idx := strings.IndexByte(raw, ':')
|
||||
if idx <= 0 {
|
||||
continue
|
||||
}
|
||||
key := strings.TrimSpace(raw[:idx])
|
||||
value := strings.TrimSpace(raw[idx+1:])
|
||||
fields[key] = value
|
||||
currentKey = key
|
||||
}
|
||||
|
||||
pkg := fields["Package"]
|
||||
ver := fields["Version"]
|
||||
dir := fields["Directory"]
|
||||
if pkg == "" || ver == "" || dir == "" {
|
||||
return nil, fmt.Errorf("missing required fields")
|
||||
}
|
||||
|
||||
dscName, dscHash := l.parseChecksumsForDSC(fields["Checksums-Sha256"])
|
||||
if dscName == "" {
|
||||
return nil, fmt.Errorf("no dsc in checksums")
|
||||
}
|
||||
|
||||
dir = strings.Trim(strings.TrimSpace(dir), "/")
|
||||
|
||||
return &SourceEntry{
|
||||
Package: pkg,
|
||||
Version: ver,
|
||||
Directory: dir,
|
||||
DSCName: dscName,
|
||||
DSCSHA256: dscHash,
|
||||
Binaries: l.parseCommaSeparatedField(fields["Binary"]),
|
||||
BuildDepends: l.parseCommaSeparatedField(fields["Build-Depends"]),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// SourceEntry represents a parsed source package entry
|
||||
type SourceEntry struct {
|
||||
Package string
|
||||
Version string
|
||||
Directory string
|
||||
DSCName string
|
||||
DSCSHA256 string
|
||||
Binaries []string
|
||||
BuildDepends []string
|
||||
}
|
||||
|
||||
// parseCommaSeparatedField parses a comma-separated field
|
||||
func (l *PackageLoader) parseCommaSeparatedField(raw string) []string {
|
||||
parts := strings.Split(strings.TrimSpace(raw), ",")
|
||||
out := make([]string, 0, len(parts))
|
||||
seen := make(map[string]struct{}, len(parts))
|
||||
|
||||
for _, part := range parts {
|
||||
part = strings.TrimSpace(strings.ToLower(part))
|
||||
if part == "" {
|
||||
continue
|
||||
}
|
||||
if _, exists := seen[part]; exists {
|
||||
continue
|
||||
}
|
||||
seen[part] = struct{}{}
|
||||
out = append(out, part)
|
||||
}
|
||||
|
||||
return out
|
||||
}
|
||||
|
||||
// parseChecksumsForDSC extracts DSC file info from checksums
|
||||
func (l *PackageLoader) parseChecksumsForDSC(raw string) (string, string) {
|
||||
for _, line := range strings.Split(raw, "\n") {
|
||||
fields := strings.Fields(strings.TrimSpace(line))
|
||||
if len(fields) < 3 {
|
||||
continue
|
||||
}
|
||||
name := fields[2]
|
||||
if strings.HasSuffix(strings.ToLower(name), ".dsc") {
|
||||
return name, strings.ToLower(fields[0])
|
||||
}
|
||||
}
|
||||
return "", ""
|
||||
}
|
||||
|
||||
// buildSourcesURL builds the URL for Sources file
|
||||
func (l *PackageLoader) buildSourcesURL(mirror, suite, component, ext string) string {
|
||||
mirror = strings.TrimRight(strings.TrimSpace(mirror), "/")
|
||||
suite = strings.Trim(strings.TrimSpace(suite), "/")
|
||||
component = strings.Trim(strings.TrimSpace(component), "/")
|
||||
|
||||
name := "Sources"
|
||||
if ext != "" {
|
||||
name += "." + ext
|
||||
}
|
||||
|
||||
return mirror + "/" + path.Join("dists", suite, component, "source", name)
|
||||
}
|
||||
|
||||
// GetFastResolver returns the loaded fast resolver
|
||||
func (l *PackageLoader) GetFastResolver() *resolver.FastResolver {
|
||||
return l.fastResolver
|
||||
}
|
||||
|
||||
// LoadDefaultRepository loads the default Debian repository
|
||||
func (l *PackageLoader) LoadDefaultRepository() error {
|
||||
mirror := "https://deb.debian.org/debian"
|
||||
suite := "stable"
|
||||
component := "main"
|
||||
|
||||
return l.LoadSources(mirror, suite, component)
|
||||
}
|
||||
|
|
@ -1,229 +0,0 @@
|
|||
package resolver
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sort"
|
||||
"sync"
|
||||
)
|
||||
|
||||
// DependencyGraph represents a dependency graph for packages
|
||||
type DependencyGraph struct {
|
||||
nodes map[string]*GraphNode
|
||||
mu sync.RWMutex
|
||||
}
|
||||
|
||||
// GraphNode represents a node in the dependency graph
|
||||
type GraphNode struct {
|
||||
Package *SourcePackage
|
||||
Dependencies []string
|
||||
Dependents []string
|
||||
Level int // -1 means not calculated yet
|
||||
Built bool
|
||||
}
|
||||
|
||||
// NewDependencyGraph creates a new dependency graph
|
||||
func NewDependencyGraph() *DependencyGraph {
|
||||
return &DependencyGraph{
|
||||
nodes: make(map[string]*GraphNode),
|
||||
}
|
||||
}
|
||||
|
||||
// AddPackage adds a package to the graph
|
||||
func (g *DependencyGraph) AddPackage(pkg *SourcePackage) {
|
||||
g.mu.Lock()
|
||||
defer g.mu.Unlock()
|
||||
|
||||
if _, exists := g.nodes[pkg.Name]; !exists {
|
||||
g.nodes[pkg.Name] = &GraphNode{
|
||||
Package: pkg,
|
||||
Dependencies: []string{},
|
||||
Dependents: []string{},
|
||||
Level: -1,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// AddDependency adds a dependency relationship: pkg depends on dep
|
||||
func (g *DependencyGraph) AddDependency(pkg, dep string) {
|
||||
g.mu.Lock()
|
||||
defer g.mu.Unlock()
|
||||
|
||||
// Ensure both nodes exist
|
||||
if _, exists := g.nodes[pkg]; !exists {
|
||||
g.nodes[pkg] = &GraphNode{
|
||||
Package: &SourcePackage{Name: pkg},
|
||||
Dependencies: []string{},
|
||||
Dependents: []string{},
|
||||
Level: -1,
|
||||
}
|
||||
}
|
||||
|
||||
if _, exists := g.nodes[dep]; !exists {
|
||||
g.nodes[dep] = &GraphNode{
|
||||
Package: &SourcePackage{Name: dep},
|
||||
Dependencies: []string{},
|
||||
Dependents: []string{},
|
||||
Level: -1,
|
||||
}
|
||||
}
|
||||
|
||||
// Add dependency relationship
|
||||
pkgNode := g.nodes[pkg]
|
||||
depNode := g.nodes[dep]
|
||||
|
||||
// Add dep to pkg's dependencies if not already there
|
||||
found := false
|
||||
for _, d := range pkgNode.Dependencies {
|
||||
if d == dep {
|
||||
found = true
|
||||
break
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
pkgNode.Dependencies = append(pkgNode.Dependencies, dep)
|
||||
}
|
||||
|
||||
// Add pkg to dep's dependents if not already there
|
||||
found = false
|
||||
for _, d := range depNode.Dependents {
|
||||
if d == pkg {
|
||||
found = true
|
||||
break
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
depNode.Dependents = append(depNode.Dependents, pkg)
|
||||
}
|
||||
}
|
||||
|
||||
// CalculateBuildOrder performs topological sort to determine build order
|
||||
func (g *DependencyGraph) CalculateBuildOrder() error {
|
||||
g.mu.Lock()
|
||||
defer g.mu.Unlock()
|
||||
|
||||
// Reset all levels
|
||||
for _, node := range g.nodes {
|
||||
node.Level = -1
|
||||
}
|
||||
|
||||
// Find nodes with no dependencies (level 0)
|
||||
queue := make([]*GraphNode, 0)
|
||||
for _, node := range g.nodes {
|
||||
if len(node.Dependencies) == 0 {
|
||||
node.Level = 0
|
||||
queue = append(queue, node)
|
||||
}
|
||||
}
|
||||
|
||||
// BFS to calculate levels
|
||||
for len(queue) > 0 {
|
||||
current := queue[0]
|
||||
queue = queue[1:]
|
||||
|
||||
for _, depName := range current.Dependents {
|
||||
depNode := g.nodes[depName]
|
||||
|
||||
// Calculate the maximum level of all dependencies
|
||||
maxDepLevel := -1
|
||||
for _, dep := range depNode.Dependencies {
|
||||
if depNode, exists := g.nodes[dep]; exists {
|
||||
if depNode.Level > maxDepLevel {
|
||||
maxDepLevel = depNode.Level
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
newLevel := maxDepLevel + 1
|
||||
if depNode.Level == -1 || depNode.Level < newLevel {
|
||||
depNode.Level = newLevel
|
||||
queue = append(queue, depNode)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Check for cycles (nodes that still have level -1)
|
||||
for _, node := range g.nodes {
|
||||
if node.Level == -1 {
|
||||
return fmt.Errorf("dependency cycle detected involving package %s", node.Package.Name)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetBuildOrder returns packages in build order (dependencies first)
|
||||
func (g *DependencyGraph) GetBuildOrder() []*SourcePackage {
|
||||
g.mu.RLock()
|
||||
defer g.mu.RUnlock()
|
||||
|
||||
// Group nodes by level
|
||||
levels := make(map[int][]*GraphNode)
|
||||
for _, node := range g.nodes {
|
||||
levels[node.Level] = append(levels[node.Level], node)
|
||||
}
|
||||
|
||||
// Sort levels
|
||||
var sortedLevels []int
|
||||
for level := range levels {
|
||||
sortedLevels = append(sortedLevels, level)
|
||||
}
|
||||
sort.Ints(sortedLevels)
|
||||
|
||||
// Build result
|
||||
result := make([]*SourcePackage, 0)
|
||||
for _, level := range sortedLevels {
|
||||
nodes := levels[level]
|
||||
|
||||
// Sort nodes within level for deterministic order
|
||||
sort.Slice(nodes, func(i, j int) bool {
|
||||
return nodes[i].Package.Name < nodes[j].Package.Name
|
||||
})
|
||||
|
||||
for _, node := range nodes {
|
||||
result = append(result, node.Package)
|
||||
}
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
// GetStats returns graph statistics
|
||||
func (g *DependencyGraph) GetStats() (nodeCount int, maxLevel int) {
|
||||
g.mu.RLock()
|
||||
defer g.mu.RUnlock()
|
||||
|
||||
nodeCount = len(g.nodes)
|
||||
maxLevel = 0
|
||||
|
||||
for _, node := range g.nodes {
|
||||
if node.Level > maxLevel {
|
||||
maxLevel = node.Level
|
||||
}
|
||||
}
|
||||
|
||||
return nodeCount, maxLevel
|
||||
}
|
||||
|
||||
// GetDependencies returns all dependencies for a package
|
||||
func (g *DependencyGraph) GetDependencies(pkgName string) []string {
|
||||
g.mu.RLock()
|
||||
defer g.mu.RUnlock()
|
||||
|
||||
if node, exists := g.nodes[pkgName]; exists {
|
||||
return append([]string{}, node.Dependencies...)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetDependents returns all packages that depend on the given package
|
||||
func (g *DependencyGraph) GetDependents(pkgName string) []string {
|
||||
g.mu.RLock()
|
||||
defer g.mu.RUnlock()
|
||||
|
||||
if node, exists := g.nodes[pkgName]; exists {
|
||||
return append([]string{}, node.Dependents...)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -1,269 +0,0 @@
|
|||
package resolver
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"zsvo/pkg/cache"
|
||||
"zsvo/pkg/deps"
|
||||
)
|
||||
|
||||
// FastResolver provides high-performance dependency resolution using cached indices
|
||||
type FastResolver struct {
|
||||
indexCache *cache.IndexCache
|
||||
packageIndex *PackageIndex
|
||||
mu sync.RWMutex
|
||||
}
|
||||
|
||||
// PackageIndex wraps the cache PackageIndex with additional resolver functionality
|
||||
type PackageIndex struct {
|
||||
*cache.PackageIndex
|
||||
}
|
||||
|
||||
// NewFastResolver creates a new fast dependency resolver
|
||||
func NewFastResolver(cacheDir string) *FastResolver {
|
||||
return &FastResolver{
|
||||
indexCache: cache.NewIndexCache(cacheDir),
|
||||
}
|
||||
}
|
||||
|
||||
// LoadIndex loads the package index for the given repository configuration
|
||||
func (r *FastResolver) LoadIndex(mirror, suite, component string) error {
|
||||
r.mu.Lock()
|
||||
defer r.mu.Unlock()
|
||||
|
||||
idx, err := r.indexCache.GetIndex(mirror, suite, component)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
r.packageIndex = &PackageIndex{PackageIndex: idx}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ResolvePackage resolves a package name to its source information in O(1) time
|
||||
func (r *FastResolver) ResolvePackage(name string) (*SourcePackage, error) {
|
||||
r.mu.RLock()
|
||||
defer r.mu.RUnlock()
|
||||
|
||||
if r.packageIndex == nil {
|
||||
return nil, fmt.Errorf("no package index loaded")
|
||||
}
|
||||
|
||||
// Try direct package name lookup first
|
||||
entry, found := r.packageIndex.LookupPackage(name)
|
||||
if found {
|
||||
return r.entryToSourcePackage(entry), nil
|
||||
}
|
||||
|
||||
// Try binary package lookup
|
||||
source, found := r.packageIndex.LookupBinary(name)
|
||||
if found {
|
||||
entry, found = r.packageIndex.LookupPackage(source)
|
||||
if found {
|
||||
return r.entryToSourcePackage(entry), nil
|
||||
}
|
||||
}
|
||||
|
||||
return nil, fmt.Errorf("package %s not found", name)
|
||||
}
|
||||
|
||||
// ResolveDependencies recursively resolves all dependencies for a package
|
||||
func (r *FastResolver) ResolveDependencies(rootPackage string) (*DependencyGraph, error) {
|
||||
r.mu.RLock()
|
||||
defer r.mu.RUnlock()
|
||||
|
||||
if r.packageIndex == nil {
|
||||
return nil, fmt.Errorf("no package index loaded")
|
||||
}
|
||||
|
||||
graph := NewDependencyGraph()
|
||||
visited := make(map[string]bool)
|
||||
|
||||
// Start recursive resolution
|
||||
if err := r.resolveDependenciesRecursive(rootPackage, graph, visited, nil); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Calculate build order
|
||||
if err := graph.CalculateBuildOrder(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return graph, nil
|
||||
}
|
||||
|
||||
// resolveDependenciesRecursive builds the dependency graph recursively
|
||||
func (r *FastResolver) resolveDependenciesRecursive(pkgName string, graph *DependencyGraph, visited map[string]bool, path []string) error {
|
||||
// Check for cycles
|
||||
for _, p := range path {
|
||||
if p == pkgName {
|
||||
return fmt.Errorf("dependency cycle detected: %s -> %s", strings.Join(path, " -> "), pkgName)
|
||||
}
|
||||
}
|
||||
|
||||
// Skip if already visited
|
||||
if visited[pkgName] {
|
||||
return nil
|
||||
}
|
||||
visited[pkgName] = true
|
||||
|
||||
// Resolve the package
|
||||
pkg, err := r.ResolvePackage(pkgName)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Add to graph
|
||||
graph.AddPackage(pkg)
|
||||
|
||||
// Recursively resolve dependencies
|
||||
for _, dep := range pkg.BuildDepends {
|
||||
depName := extractPackageName(dep)
|
||||
if depName == "" {
|
||||
continue
|
||||
}
|
||||
|
||||
// Skip if it's a system package that doesn't need building
|
||||
if isSystemPackage(depName) {
|
||||
continue
|
||||
}
|
||||
|
||||
// Add dependency relationship
|
||||
graph.AddDependency(pkgName, depName)
|
||||
|
||||
// Recursively resolve
|
||||
newPath := append(path, pkgName)
|
||||
if err := r.resolveDependenciesRecursive(depName, graph, visited, newPath); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetBuildOrder returns the packages in build order (dependencies first)
|
||||
func (r *FastResolver) GetBuildOrder(rootPackage string) ([]*SourcePackage, error) {
|
||||
graph, err := r.ResolveDependencies(rootPackage)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return graph.GetBuildOrder(), nil
|
||||
}
|
||||
|
||||
// entryToSourcePackage converts a cache entry to a SourcePackage
|
||||
func (r *FastResolver) entryToSourcePackage(entry *cache.PackageEntry) *SourcePackage {
|
||||
return &SourcePackage{
|
||||
Name: entry.Package,
|
||||
Version: entry.Version,
|
||||
Directory: entry.Directory,
|
||||
DSCName: entry.DSCName,
|
||||
DSCSHA256: entry.DSCSHA256,
|
||||
Binaries: entry.Binaries,
|
||||
BuildDepends: entry.BuildDepends,
|
||||
}
|
||||
}
|
||||
|
||||
// AddPackage adds a package to the current index (for updating cache)
|
||||
func (r *FastResolver) AddPackage(entry *cache.PackageEntry) error {
|
||||
r.mu.Lock()
|
||||
defer r.mu.Unlock()
|
||||
|
||||
if r.packageIndex == nil {
|
||||
return fmt.Errorf("no package index loaded")
|
||||
}
|
||||
|
||||
r.packageIndex.AddPackage(entry)
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetStats returns resolver statistics
|
||||
func (r *FastResolver) GetStats() (int, int, bool) {
|
||||
r.mu.RLock()
|
||||
defer r.mu.RUnlock()
|
||||
|
||||
if r.packageIndex == nil {
|
||||
return 0, 0, false
|
||||
}
|
||||
|
||||
pkgCount, binCount := r.packageIndex.GetStats()
|
||||
expired := r.packageIndex.IsExpired(24 * time.Hour) // Consider expired after 24 hours
|
||||
|
||||
return pkgCount, binCount, expired
|
||||
}
|
||||
|
||||
// SaveIndex persists the current index to disk
|
||||
func (r *FastResolver) SaveIndex(mirror, suite, component string) error {
|
||||
r.mu.RLock()
|
||||
defer r.mu.RUnlock()
|
||||
|
||||
if r.packageIndex == nil {
|
||||
return fmt.Errorf("no package index loaded")
|
||||
}
|
||||
|
||||
cacheFile := r.indexCache.CacheFilePath(mirror, suite, component)
|
||||
return r.packageIndex.Save(cacheFile)
|
||||
}
|
||||
|
||||
// SourcePackage represents a Debian source package
|
||||
type SourcePackage struct {
|
||||
Name string
|
||||
Version string
|
||||
Directory string
|
||||
DSCName string
|
||||
DSCSHA256 string
|
||||
Binaries []string
|
||||
BuildDepends []string
|
||||
}
|
||||
|
||||
// extractPackageName extracts package name from dependency string
|
||||
func extractPackageName(dep string) string {
|
||||
// Parse dependency constraints using existing deps package
|
||||
req, err := deps.ParseRequirement(dep)
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
|
||||
if len(req.Alternatives) > 0 {
|
||||
return req.Alternatives[0].Name // Take first alternative
|
||||
}
|
||||
|
||||
return ""
|
||||
}
|
||||
|
||||
// isSystemPackage checks if a package is a system package that doesn't need building
|
||||
func isSystemPackage(name string) bool {
|
||||
systemPackages := map[string]bool{
|
||||
"gcc": true,
|
||||
"g++": true,
|
||||
"make": true,
|
||||
"bash": true,
|
||||
"glibc": true,
|
||||
"libc6": true,
|
||||
"libc-bin": true,
|
||||
"base-files": true,
|
||||
"base-passwd": true,
|
||||
"coreutils": true,
|
||||
"dash": true,
|
||||
"debianutils": true,
|
||||
"diffutils": true,
|
||||
"dpkg": true,
|
||||
"findutils": true,
|
||||
"grep": true,
|
||||
"gzip": true,
|
||||
"hostname": true,
|
||||
"init-system-helpers": true,
|
||||
"login": true,
|
||||
"ncurses-base": true,
|
||||
"ncurses-bin": true,
|
||||
"perl-base": true,
|
||||
"sed": true,
|
||||
"sysvinit": true,
|
||||
"util-linux": true,
|
||||
}
|
||||
|
||||
return systemPackages[name]
|
||||
}
|
||||
|
|
@ -1,129 +0,0 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"log"
|
||||
"os"
|
||||
"time"
|
||||
|
||||
"zsvo/pkg/debian"
|
||||
"zsvo/pkg/loader"
|
||||
)
|
||||
|
||||
// Test performance comparison between old and new resolvers
|
||||
func main() {
|
||||
if len(os.Args) < 2 {
|
||||
fmt.Println("Usage: go run test_performance.go <package_name>")
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
packageName := os.Args[1]
|
||||
cacheDir := "/tmp/zsvo_test_cache"
|
||||
|
||||
fmt.Printf("🚀 Testing dependency resolution performance for %s\n", packageName)
|
||||
fmt.Printf("📁 Cache directory: %s\n\n", cacheDir)
|
||||
|
||||
// Clean up any existing cache
|
||||
os.RemoveAll(cacheDir)
|
||||
|
||||
// Test 1: Old resolver (baseline)
|
||||
fmt.Println("=== Testing Original Resolver ===")
|
||||
start := time.Now()
|
||||
|
||||
oldResolver := debian.NewResolver()
|
||||
_, err := oldResolver.ResolveSource(packageName)
|
||||
if err != nil {
|
||||
fmt.Printf("❌ Old resolver failed: %v\n", err)
|
||||
} else {
|
||||
oldTime := time.Since(start)
|
||||
fmt.Printf("✅ Old resolver completed in: %v\n", oldTime)
|
||||
}
|
||||
|
||||
fmt.Println()
|
||||
|
||||
// Test 2: New fast resolver with cache loading
|
||||
fmt.Println("=== Testing Fast Resolver (first run - cache miss) ===")
|
||||
start = time.Now()
|
||||
|
||||
packageLoader := loader.NewPackageLoader(cacheDir)
|
||||
err = packageLoader.LoadDefaultRepository()
|
||||
if err != nil {
|
||||
log.Printf("⚠️ Failed to load repository: %v", err)
|
||||
}
|
||||
|
||||
loadTime := time.Since(start)
|
||||
fmt.Printf("📦 Cache loading time: %v\n", loadTime)
|
||||
|
||||
// Now test resolution
|
||||
start = time.Now()
|
||||
fastResolver := packageLoader.GetFastResolver()
|
||||
_, err = fastResolver.ResolvePackage(packageName)
|
||||
if err != nil {
|
||||
fmt.Printf("❌ Fast resolver failed: %v\n", err)
|
||||
} else {
|
||||
fastTime := time.Since(start)
|
||||
fmt.Printf("✅ Fast resolver (first lookup) completed in: %v\n", fastTime)
|
||||
}
|
||||
|
||||
fmt.Println()
|
||||
|
||||
// Test 3: Fast resolver with warm cache
|
||||
fmt.Println("=== Testing Fast Resolver (second run - cache hit) ===")
|
||||
start = time.Now()
|
||||
|
||||
// Create new loader to simulate fresh process
|
||||
packageLoader2 := loader.NewPackageLoader(cacheDir)
|
||||
err = packageLoader2.LoadDefaultRepository()
|
||||
if err != nil {
|
||||
log.Printf("⚠️ Failed to load repository: %v", err)
|
||||
}
|
||||
|
||||
loadTime2 := time.Since(start)
|
||||
fmt.Printf("📦 Cache loading time (warm): %v\n", loadTime2)
|
||||
|
||||
// Test resolution
|
||||
start = time.Now()
|
||||
fastResolver2 := packageLoader2.GetFastResolver()
|
||||
_, err = fastResolver2.ResolvePackage(packageName)
|
||||
if err != nil {
|
||||
fmt.Printf("❌ Fast resolver (warm) failed: %v\n", err)
|
||||
} else {
|
||||
fastTime2 := time.Since(start)
|
||||
fmt.Printf("✅ Fast resolver (warm lookup) completed in: %v\n", fastTime2)
|
||||
}
|
||||
|
||||
fmt.Println()
|
||||
|
||||
// Test 4: Dependency graph resolution
|
||||
fmt.Println("=== Testing Dependency Graph Resolution ===")
|
||||
start = time.Now()
|
||||
|
||||
graph, err := fastResolver2.ResolveDependencies(packageName)
|
||||
if err != nil {
|
||||
fmt.Printf("❌ Dependency resolution failed: %v\n", err)
|
||||
} else {
|
||||
graphTime := time.Since(start)
|
||||
fmt.Printf("✅ Dependency graph completed in: %v\n", graphTime)
|
||||
|
||||
buildOrder := graph.GetBuildOrder()
|
||||
fmt.Printf("📊 Build order: %d packages\n", len(buildOrder))
|
||||
for i, pkg := range buildOrder {
|
||||
fmt.Printf(" %d. %s\n", i+1, pkg.Name)
|
||||
}
|
||||
}
|
||||
|
||||
fmt.Println()
|
||||
|
||||
// Show cache statistics
|
||||
pkgCount, binCount, expired := fastResolver2.GetStats()
|
||||
fmt.Printf("📈 Cache Statistics:\n")
|
||||
fmt.Printf(" Packages: %d\n", pkgCount)
|
||||
fmt.Printf(" Binaries: %d\n", binCount)
|
||||
fmt.Printf(" Cache fresh: %t\n", !expired)
|
||||
|
||||
fmt.Println()
|
||||
fmt.Println("🎯 Performance Summary:")
|
||||
fmt.Printf(" - Cache loading: %v (cold) vs %v (warm)\n", loadTime, loadTime2)
|
||||
fmt.Printf(" - Package lookup: <1ms (target achieved with warm cache)\n")
|
||||
fmt.Printf(" - Dependency graph: O(n) where n = number of dependencies\n")
|
||||
}
|
||||
Loading…
Reference in a new issue