|
| 1 | +# Build System |
| 2 | + |
| 3 | +## Overview |
| 4 | + |
| 5 | +The project uses **node-gyp** to build the native SQLite3 addon. The build system supports both Debug and Release configurations. |
| 6 | + |
| 7 | +## Build Files |
| 8 | + |
| 9 | +### binding.gyp |
| 10 | + |
| 11 | +Main build configuration file: |
| 12 | + |
| 13 | +```python |
| 14 | +{ |
| 15 | + "includes": ["deps/common-sqlite.gypi"], |
| 16 | + "variables": { |
| 17 | + "sqlite%": "internal", # Use bundled SQLite |
| 18 | + "sqlite_libname%": "sqlite3", |
| 19 | + "module_name": "node_sqlite3", |
| 20 | + }, |
| 21 | + "targets": [ |
| 22 | + { |
| 23 | + "target_name": "<(module_name)", |
| 24 | + "sources": [ |
| 25 | + "src/backup.cc", |
| 26 | + "src/database.cc", |
| 27 | + "src/node_sqlite3.cc", |
| 28 | + "src/statement.cc" |
| 29 | + ], |
| 30 | + "defines": [ |
| 31 | + "NAPI_VERSION=<(napi_build_version)", |
| 32 | + "NAPI_DISABLE_CPP_EXCEPTIONS=1" |
| 33 | + ] |
| 34 | + // ... more config |
| 35 | + } |
| 36 | + ] |
| 37 | +} |
| 38 | +``` |
| 39 | + |
| 40 | +### deps/common-sqlite.gypi |
| 41 | + |
| 42 | +Common build configurations: |
| 43 | + |
| 44 | +| Configuration | Defines | Optimization | |
| 45 | +|--------------|---------|--------------| |
| 46 | +| Debug | `DEBUG`, `_DEBUG` | None (`-O0`) | |
| 47 | +| Release | `NDEBUG` | Full (`-O3`) | |
| 48 | + |
| 49 | +### deps/sqlite3.gyp |
| 50 | + |
| 51 | +SQLite library build configuration: |
| 52 | +- Compiles SQLite from source tarball |
| 53 | +- Enables FTS3/4/5, R-Tree, math functions |
| 54 | +- Thread-safe configuration |
| 55 | + |
| 56 | +## Build Commands |
| 57 | + |
| 58 | +### Standard Build |
| 59 | + |
| 60 | +```bash |
| 61 | +# Install with prebuild or compile |
| 62 | +yarn install |
| 63 | + |
| 64 | +# Explicit rebuild |
| 65 | +yarn rebuild |
| 66 | +# or |
| 67 | +node-gyp rebuild |
| 68 | +``` |
| 69 | + |
| 70 | +Output: `build/Release/node_sqlite3.node` |
| 71 | + |
| 72 | +### Debug Build |
| 73 | + |
| 74 | +```bash |
| 75 | +node-gyp rebuild --debug |
| 76 | +``` |
| 77 | + |
| 78 | +Output: `build/Debug/node_sqlite3.node` |
| 79 | + |
| 80 | +### Clean Build |
| 81 | + |
| 82 | +```bash |
| 83 | +node-gyp clean |
| 84 | +node-gyp rebuild |
| 85 | +``` |
| 86 | + |
| 87 | +### Verbose Build |
| 88 | + |
| 89 | +```bash |
| 90 | +node-gyp rebuild --verbose |
| 91 | +``` |
| 92 | + |
| 93 | +## Build Configurations |
| 94 | + |
| 95 | +### Debug Configuration |
| 96 | + |
| 97 | +Enables: |
| 98 | +- `DEBUG` and `_DEBUG` preprocessor macros |
| 99 | +- Debug symbols (`GCC_GENERATE_DEBUGGING_SYMBOLS: YES`) |
| 100 | +- No optimizations (`GCC_OPTIMIZATION_LEVEL: 0`) |
| 101 | +- `ASSERT_STATUS()` macro checks (src/macros.h:140) |
| 102 | + |
| 103 | +### Release Configuration (Default) |
| 104 | + |
| 105 | +Enables: |
| 106 | +- `NDEBUG` preprocessor macro |
| 107 | +- Full optimizations (`GCC_OPTIMIZATION_LEVEL: 3`) |
| 108 | +- No debug symbols |
| 109 | + |
| 110 | +## Custom Build Options |
| 111 | + |
| 112 | +### Using External SQLite |
| 113 | + |
| 114 | +```bash |
| 115 | +node-gyp rebuild --sqlite=/path/to/sqlite --sqlite_libname=sqlite3 |
| 116 | +``` |
| 117 | + |
| 118 | +### Specifying NAPI Version |
| 119 | + |
| 120 | +Prebuilt binaries are available for NAPI versions 3 and 6 (see `package.json` binary.napi_versions). |
| 121 | + |
| 122 | +## Assert Control |
| 123 | + |
| 124 | +### Asserts in Debug Mode |
| 125 | + |
| 126 | +The `ASSERT_STATUS` macro in src/macros.h is enabled when `DEBUG` is defined: |
| 127 | + |
| 128 | +```c |
| 129 | +#ifdef DEBUG |
| 130 | + #define ASSERT_STATUS() assert(status == 0); |
| 131 | +#else |
| 132 | + #define ASSERT_STATUS() (void)status; |
| 133 | +#endif |
| 134 | +``` |
| 135 | + |
| 136 | +## Module Loading |
| 137 | + |
| 138 | +The native addon is loaded via lib/sqlite3-binding.js: |
| 139 | + |
| 140 | +```javascript |
| 141 | +module.exports = require('bindings')('node_sqlite3.node'); |
| 142 | +``` |
| 143 | + |
| 144 | +The `bindings` package searches: |
| 145 | +1. `build/Debug/node_sqlite3.node` |
| 146 | +2. `build/Release/node_sqlite3.node` |
| 147 | + |
| 148 | +**Note**: Debug builds take precedence if both exist. |
| 149 | + |
| 150 | +## Prebuilt Binaries |
| 151 | + |
| 152 | +### Downloading Prebuilts |
| 153 | + |
| 154 | +```bash |
| 155 | +yarn install # Automatically downloads prebuilt if available |
| 156 | +``` |
| 157 | + |
| 158 | +### Building Prebuilts |
| 159 | + |
| 160 | +```bash |
| 161 | +yarn prebuild # Build for all NAPI versions |
| 162 | +``` |
| 163 | + |
| 164 | +### Uploading Prebuilts |
| 165 | + |
| 166 | +```bash |
| 167 | +yarn upload # Upload to GitHub releases |
| 168 | +``` |
| 169 | + |
| 170 | +## Platform Support |
| 171 | + |
| 172 | +- Node.js >= 20.17.0 |
| 173 | +- NAPI versions: 3, 6 |
| 174 | +- Platforms: Linux, macOS, Windows (see prebuild configuration) |
| 175 | + |
| 176 | +## Troubleshooting |
| 177 | + |
| 178 | +### Build Fails |
| 179 | + |
| 180 | +1. Check Node.js version: `node --version` (must be >= 20.17.0) |
| 181 | +2. Check node-gyp version: `node-gyp --version` |
| 182 | +3. Try clean rebuild: `node-gyp clean && node-gyp rebuild` |
| 183 | +4. Check Python version (node-gyp requires Python 3) |
| 184 | + |
| 185 | +### Native Module Not Found |
| 186 | + |
| 187 | +1. Verify build output exists: `ls build/Release/node_sqlite3.node` |
| 188 | +2. Check if bindings package is installed: `yarn install` |
| 189 | +3. Try explicit rebuild: `yarn rebuild` |
| 190 | + |
| 191 | +### Debug Symbols Missing |
| 192 | + |
| 193 | +1. Build with `--debug` flag: `node-gyp rebuild --debug` |
| 194 | +2. Verify output location: `build/Debug/node_sqlite3.node` |
| 195 | + |
| 196 | +## Related Files |
| 197 | + |
| 198 | +- [Project Overview](project-overview.md) - Architecture and components |
| 199 | +- [Development Workflow](development.md) - Testing and contributing |
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