mirror of
https://github.com/lana-k/sqliteviz.git
synced 2025-12-06 18:18:53 +08:00
3a6628cab9
* Proof-of-concept pre-built custom sql.js * Rewrite Makefile as a couple of comprehensible Python scripts * Add link to a blog post about transitive closure in SQLite * Remove eval extension -- no much point as it only returns a string * Consistently use existing Path objects * Add basic tests scalar functions from extension-functions.c * Test presence of functions from the rest of built extensions * Use the same sqlite.com domain * Add a couple SQLite compile flags that may make it a bit faster * Add regexpi function test * Add node about regexpi and REGEXP operator * Workaround first build failure, rebuild lock file and minor fixes
84 lines
2.2 KiB
Python
84 lines
2.2 KiB
Python
import logging
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import subprocess
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from pathlib import Path
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cflags = (
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'-O2',
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'-DSQLITE_OMIT_LOAD_EXTENSION',
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'-DSQLITE_DISABLE_LFS',
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'-DSQLITE_ENABLE_FTS3',
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'-DSQLITE_ENABLE_FTS3_PARENTHESIS',
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'-DSQLITE_ENABLE_FTS5',
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'-DSQLITE_ENABLE_JSON1',
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'-DSQLITE_THREADSAFE=0',
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'-DSQLITE_ENABLE_NORMALIZE',
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'-DSQLITE_EXTRA_INIT=extra_init',
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'-DSQLITE_DEFAULT_MEMSTATUS=0',
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'-DSQLITE_USE_ALLOCA',
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)
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emflags = (
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# Base
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'--memory-init-file', '0',
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'-s', 'RESERVED_FUNCTION_POINTERS=64',
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'-s', 'ALLOW_TABLE_GROWTH=1',
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'-s', 'SINGLE_FILE=0',
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# WASM
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'-s', 'WASM=1',
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'-s', 'ALLOW_MEMORY_GROWTH=1',
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# Optimisation
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'-s', 'INLINING_LIMIT=50',
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'-O3',
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'-flto',
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'--closure', '1',
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# sql.js
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'-s', 'EXPORTED_FUNCTIONS=@src/sqljs/exported_functions.json',
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'-s', 'EXPORTED_RUNTIME_METHODS=@src/sqljs/exported_runtime_methods.json',
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'--pre-js', 'src/sqljs/api.js',
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)
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def build(src: Path, dst: Path):
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out = Path('out')
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out.mkdir()
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logging.info('Building LLVM bitcode for sqlite3.c')
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subprocess.check_call([
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'emcc',
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*cflags,
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'-c', src / 'sqlite3.c',
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'-o', out / 'sqlite3.bc',
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])
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logging.info('Building LLVM bitcode for extension-functions.c')
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subprocess.check_call([
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'emcc',
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*cflags,
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'-c', src / 'extension-functions.c',
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'-o', out / 'extension-functions.bc',
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])
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logging.info('Building WASM from bitcode')
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subprocess.check_call([
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'emcc',
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*emflags,
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out / 'sqlite3.bc',
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out / 'extension-functions.bc',
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'-o', out / 'sql-wasm.js',
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])
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logging.info('Post-processing build and copying to dist')
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(out / 'sql-wasm.wasm').rename(dst / 'sql-wasm.wasm')
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with (dst / 'sql-wasm.js').open('w') as f:
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f.write((src / 'sqljs' / 'shell-pre.js').read_text())
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f.write((out / 'sql-wasm.js').read_text())
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f.write((src / 'sqljs' / 'shell-post.js').read_text())
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if __name__ == '__main__':
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logging.basicConfig(level='INFO', format='%(asctime)s %(levelname)s %(name)s %(message)s')
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src = Path('src')
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dst = Path('dist')
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dst.mkdir()
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build(src, dst)
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