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restore process.env after exec action with side-effects #153

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Merged
purplecabbage merged 5 commits into from
Jun 4, 2025
Merged

restore process.env after exec action with side-effects #153

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15249ff
restore process.env after exec action with side-effects
purplecabbage May 30, 2025
595f2b5
added try/catch/finally to ensure env gets reset even if the action t…
purplecabbage Jun 2, 2025
66695b9
Use Object.assign since env props are only strings
purplecabbage Jun 3, 2025
53ba902
remove outdated comment
purplecabbage Jun 3, 2025
4d6bd5e
spread syntax for cloning
purplecabbage Jun 4, 2025
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9 changes: 9 additions & 0 deletions src/lib/run-dev.js
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Original file line number Diff line number Diff line change
Expand Up @@ -349,6 +349,11 @@ async function invokeAction ({ actionRequestContext, logger }) {
}
}
}

// if we run an action, we will restore the process.env after the call
// we must do this before we load the action because code can execute on require/import
const preCallEnv = { ...process.env }
const originalCwd = process.cwd()
// generate an activationID just like openwhisk
process.env.__OW_ACTIVATION_ID = crypto.randomBytes(16).toString('hex')

Expand Down Expand Up @@ -417,6 +422,10 @@ async function invokeAction ({ actionRequestContext, logger }) {
statusCode,
body: { error: 'Response is not valid \'message/http\'.' }
}
} finally {
logger.debug('restoring process.env and cwd')
process.env = preCallEnv // restore the environment variables
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Copilot AI Jun 3, 2025

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Reassigning process.env can break references elsewhere; instead clear the existing process.env and reassign properties, e.g. delete all keys then Object.assign(process.env, preCallEnv), to preserve the env object identity.

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process.chdir(originalCwd) // restore the original working directory
}
} else {
// this case the action returned an error object, so we should use it
Expand Down