The difference between "yarn hardhat deploy" and "yarn hardhat run scripts/deploy.js"

[wxy-sudo]

Can anyone tell me the difference between "yarn hardhat deploy" and "yarn hardhat run scripts/deploy.js"

I'm confusing

Thanks!!

[alymurtazamemon]

@wxy-sudo

The yarn hardhat deploy command is coming from basically the hardhat-deploy dependency, which runs all of the deploy scripts that are placed inside the deploy folder of the project. It also ensures that those scripts deploy when we run tests through fixtures.

yarn hardhat run scripts/deploy.js is basically a hardhat dependency command that runs only the scripts that we give it through a path like scripts/deploy.js

Hardhat Deploy
It is a copy/paste from docs for quick reading.

Before going into the details, here is a very simple summary of the basic feature of hardhat-deploy.

hardhat-deploy allows you to write deploy scripts in the deploy folder. Each of these files that look as follows will be executed in turn when you execute the following task: hardhat --network <networkName> deploy

Furthermore, you can also ensure these scripts are executed in the test too by calling await deployments.fixture(['MyContract']) in your test. This is optimized, so if multiple tests use the same contract, the deployment will be executed once and each test will start with the exact same state.

This is a huge benefit for testing since you are not required to replicate the deployment procedure in your tests. The tag feature (as seen in the script above) and dependencies will also make your life easier when writing complex deployment procedures.

You can even group deploy scripts in different sub folder and ensure they are executed in their logical order.

Furthermore hardhat-deploy can also support a multi-chain settings like L1, L2 with multiple deploy folder specific to each network.

All of this can also be bundled in a npm package so user of hardhat-deploy can reuse your deployment procedure and get started integrating with your project locally.

[alymurtazamemon]

@wxy-sudo More complete info about hardhat-deploy is available in its docs LINK

[wxy-sudo]

great thanks to your help!!

[othaime-en]

Hey @wxy-sudo yarn hardhat run scripts/deploy.js uses the run task which is a built-in functionality in hardhat to run whatever script you give it after the command run. Like in your case it will run the script script/deploy.js Could be anything you give it like script/myScript.js This is the basic level way of running scripts in your hardhat project.

On the other hand yarn hardhat deploy is a way of deploying multiple scripts at once using the hardhat-deploy plugin. hardhat-deploy makes it easy to develop several scripts at once. All you have to do is make sure they are in a folder named deploy. Also you have to label them in the order that they are supposed to be deployed. For example, if you have labeled them 00-deploy-mocks, 01-deploy-fundme, 02-deploy-mycontract, running yarn hardhat deploy will deploy them in that order. This makes it easy to deploy scripts compared to using yarn hardhat run scripts/deploy.js because you deploy them all at once even if you have 10 or 20 deploy scripts which obviously would be hard when using run because you'll have to name all of them at once.

Additionally, the hardhat-deploy plugin comes with a deployment functionality that lets you add tags in your deploy scripts so that you can choose and customize what scripts to deploy for example yarn hardhat deploy --tags all. This tags functionality is also useful when fetching deployments/contract instances when writing test in the form of await deployments.fixture([TAG_HERE])
You can find the rest of the information in the link given by @alymurtazamemon above :)

[wxy-sudo]

thank you very much!!

[krakxn]

I believe this is not as complicated as in the other replies, and should be kept simple, but for an extensive breakdown, you can go through them! :)

yarn hardhat run scripts/deploy.js essentially tells Hardhat to run the file deploy.js in scripts folder.

Whereas yarn hardhat deploy tells Hardhat to run completely the folder deploy--which essentially will run all the scripts inside that folder.

[wxy-sudo]

thanks!!

[wxy-sudo]

all your answers are great help to me

[krakxn]

Good luck!

Yes, they are awesome :)