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chore: writes compiled mongosh to lib-boxednode instead of lib to avoid linking it twice when building node #43

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merged 3 commits into from
Aug 1, 2023
Merged

chore: writes compiled mongosh to lib-boxednode instead of lib to avoid linking it twice when building node #43

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8d615a6
chore: writes compiled mongosh to lib-boxednode instead of lib to avo…
himanshusinghs Jul 31, 2023
7f465b2
chore: ditch namespace and reference correct path in the main source
himanshusinghs Jul 31, 2023
fe03a4a
chore: conditionally generate the entry point for custom source code …
himanshusinghs Aug 1, 2023
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32 changes: 26 additions & 6 deletions src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -271,6 +271,7 @@ async function compileJSFileAsBinaryImpl (options: CompilationOptions, logger: L

const nodeSourcePath = await getNodeSourceForVersion(
options.nodeVersionRange, options.tmpdir, logger);
const nodeVersion = await getNodeVersionFromSourceDirectory(nodeSourcePath);

const requireMappings: [RegExp, string][] = [];
const extraJSSourceFiles: string[] = [];
Expand Down Expand Up @@ -312,7 +313,6 @@ async function compileJSFileAsBinaryImpl (options: CompilationOptions, logger: L
}

logger.stepStarting('Inserting custom code into Node.js source');
await fs.mkdir(path.join(nodeSourcePath, 'lib', namespace), { recursive: true });
let entryPointTrampolineSource = await fs.readFile(
path.join(__dirname, '..', 'resources', 'entry-point-trampoline.js'), 'utf8');
entryPointTrampolineSource = entryPointTrampolineSource.replace(
Expand All @@ -321,10 +321,30 @@ async function compileJSFileAsBinaryImpl (options: CompilationOptions, logger: L
requireMappings: requireMappings.map(([re, linked]) => [re.source, re.flags, linked]),
enableBindingsPatch
}));
await fs.writeFile(
path.join(nodeSourcePath, 'lib', namespace, `${namespace}.js`),
entryPointTrampolineSource);
extraJSSourceFiles.push(`./lib/${namespace}/${namespace}.js`);

/**
* Since Node 20.x, external source code linked from `lib` directory started
* failing the Node.js build process because of the file being linked multiple
* times which is why we do not link the external files anymore from `lib`
* directory and instead from a different directory, `lib-boxednode`. This
* however does not work for any node version < 20 which is why we are
* conditionally generating the entry point and configure params here based on
* Node version.
*/
const { customCodeSource, customCodeConfigureParam, customCodeEntryPoint } = nodeVersion[0] >= 20
? {
customCodeSource: path.join(nodeSourcePath, 'lib-boxednode', `${namespace}.js`),
customCodeConfigureParam: `./lib-boxednode/${namespace}.js`,
customCodeEntryPoint: `lib-boxednode/${namespace}`
} : {
customCodeSource: path.join(nodeSourcePath, 'lib', namespace, `${namespace}.js`),
customCodeConfigureParam: `./lib/${namespace}/${namespace}.js`,
customCodeEntryPoint: `${namespace}/${namespace}`
};

await fs.mkdir(path.dirname(customCodeSource), { recursive: true });
await fs.writeFile(customCodeSource, entryPointTrampolineSource);
extraJSSourceFiles.push(customCodeConfigureParam);
logger.stepCompleted();

logger.stepStarting('Storing executable metadata');
Expand Down Expand Up @@ -355,7 +375,7 @@ async function compileJSFileAsBinaryImpl (options: CompilationOptions, logger: L
let mainSource = await fs.readFile(
path.join(__dirname, '..', 'resources', 'main-template.cc'), 'utf8');
mainSource = mainSource.replace(/\bREPLACE_WITH_ENTRY_POINT\b/g,
JSON.stringify(`${namespace}/${namespace}`));
JSON.stringify(customCodeEntryPoint));
mainSource = mainSource.replace(/\bREPLACE_DECLARE_LINKED_MODULES\b/g,
registerFunctions.map((fn) => `void ${fn}(const void**,const void**);\n`).join(''));
mainSource = mainSource.replace(/\bREPLACE_DEFINE_LINKED_MODULES\b/g,
Expand Down
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