⚡ Bolt: [performance improvement] Avoid intermediate buffer in fs.readFileSync calls#32
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Using `fs.readFileSync(path, 'utf8')` instead of `fs.readFileSync(path).toString()` directly decodes the stream into a string in Node.js, completely avoiding the allocation of an intermediate memory `Buffer` object and reducing GC overhead. Co-authored-by: vishnu-madhavan-git <237662584+vishnu-madhavan-git@users.noreply.github.com>
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💡 What:
Replaced instances of
fs.readFileSync(path).toString()withfs.readFileSync(path, 'utf8')across several files in the@expo/cli,@expo/config-plugins, and@expo/prebuild-configpackages. Additionally, cleaned up unnecessary.toString()calls where'utf8'was already passed.🎯 Why:
This is a standard Node.js micro-optimization. By passing the encoding string directly to
fs.readFileSync, Node.js bypasses the allocation of an intermediate memoryBufferobject and decodes the stream directly to a string. This reduces garbage collection (GC) pressure and provides minor improvements in execution speed and memory efficiency without sacrificing code readability.📊 Impact:
🔬 Measurement:
fs.readFileSyncnow passes the encoding option directly instead of chaining.toString().PR created automatically by Jules for task 16859852880905722925 started by @vishnu-madhavan-git