I have a node script that checks for some conditions. Lets call it condition.js
. I have another script which runs my program, lets call it runner.js
. runner.js
is referenced by a command in my package.json
file under scripts as well condition.js
with their own commands. I want the condition.js
to run before runner.js
. If a certain condition is true (it checks a string for something) in the condition.js
when it runs, I want the second script to run after it. If it is not true, I don't want the second script to run. How can I do this in package.json
?
In condition.js
you need to exit()
the Node process with a non-zero exit code. Then in your package.json
file you can check whether to execute the second script based on the exit code (zero or not):
In your condition.js
file:
if (true) { // use your actual condition
process.exit(128);
}
Then, in your package.json
:
{
"scripts": {
"special": "node condition.js && node runner.js"
}
}
Now you can run npm run special
from the command line, the runner.js
file will only run if condition.js
exits with a zero code (which is the default if the node execution ends normally).
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