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perf(opentelemetry-node): plugin loader search required cache #1807

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merged 4 commits into from
Jan 12, 2021
Merged

perf(opentelemetry-node): plugin loader search required cache #1807

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99be399
perf(opentelemetry-node): plugin loader search required cache
blumamir Jan 11, 2021
3780136
perf(instrumentation): plugin loader search required cache
blumamir Jan 11, 2021
1f6fcd4
Merge branch 'master' into plugin-loader-pref
blumamir Jan 12, 2021
58e63d5
Merge branch 'master' into plugin-loader-pref
obecny Jan 12, 2021
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19 changes: 8 additions & 11 deletions packages/opentelemetry-node/src/instrumentation/PluginLoader.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -103,17 +103,14 @@ export class PluginLoader {
return this;
}

const alreadyRequiredModules = Object.keys(require.cache);
const requiredModulesToHook = modulesToHook.filter(
name =>
alreadyRequiredModules.find(cached => {
try {
return require.resolve(name) === cached;
} catch (err) {
return false;
}
}) !== undefined
);
const requiredModulesToHook = modulesToHook.filter((name: string) => {
try {
const moduleResolvedFilename = require.resolve(name);
return moduleResolvedFilename in require.cache;
} catch {
return false;
}
});
if (requiredModulesToHook.length > 0) {
this.logger.warn(
`Some modules (${requiredModulesToHook.join(
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