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fix(run-multiple): avoid temp.mjs filename collision across forked processes #5644

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fix(run-multiple): avoid temp.mjs filename collision across forked processes #5644

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4 changes: 3 additions & 1 deletion lib/utils/typescript.js
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Original file line number Diff line number Diff line change
Expand Up @@ -385,7 +385,9 @@ const __dirname = __dirname_fn(__filename);
)

// Write the transpiled file with updated imports
const tempFile = filePath.replace(/\.ts$/, '.temp.mjs')
// Use process.pid in the filename to avoid collisions when run-multiple forks
// several processes that all transpile the same .ts files concurrently.
const tempFile = filePath.replace(/\.ts$/, `.${process.pid}.temp.mjs`)
fs.writeFileSync(tempFile, jsContent)
transpiledFiles.set(filePath, tempFile)
}
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