Support for --metadata flag

[bguiz]

• solc supports the --metadata flag, see https://docs.soliditylang.org/en/v0.8.17/metadata.html#contract-metadata
• solcjs does not:

$ solcjs --bin --abi --metadata ./account.sol
error: unknown option '--metadata'

• I would like to have this available in solcjs as well, in order to be able to use it with smart contract verification tools, such as sourcify

[mehtavishwa30]

Hey @bguiz! Thanks for bringing this up.

Would love to understand the purpose or motivation behind using the solcjs wrapper script rather than native solc binary which provides all the options that you may required and aren't intended to make it in the wrapper script.

Please note that if you require options that aren't available in the wrapper script, we recommend you to use the native solc binary.

[bguiz]

@mehtavishwa30 (1) when using a build tool or framework that already has solcjs baked in. e.g. hardhat, remix, sourcify, etc. (2) for developers who are trialling or building POCs, and aren't that invested, npm i is easier than installing the solc binary.

Would love to understand the purpose or motivation behind using the solcjs wrapper script rather than native solc binary which provides all the options that you may required and aren't intended to make it in the wrapper script.

[nikola-matic]

@mehtavishwa30 (1) when using a build tool or framework that already has solcjs baked in. e.g. hardhat, remix, sourcify, etc. (2) for developers who are trialling or building POCs, and aren't that invested, npm i is easier than installing the solc binary.

Would love to understand the purpose or motivation behind using the solcjs wrapper script rather than native solc binary which provides all the options that you may required and aren't intended to make it in the wrapper script.

solcjs provides full access to the standard JSON interface, which means you can get metadata access via that, so I'm curious as to why you haven't gone for that approach?

[bguiz]

@nikola-matic this is great!

solcjs provides full access to the standard JSON interface,

it sounds like it should then be easier to implement the --metadata in the wrapper!

error: unknown option '--metadata'