Fix merge package.json files

[rin-st]

If you have package.json files in both hardhat and foundry folders of your extension, installation breaks. PR fixes it.

Extension to test (just two empty package.json files in both folders). Try from main and from this PR branch.

yarn cli -e rin-st/test-merge-packages

extension repo: https://github.com/rin-st/test-merge-packages

Note: I changed regex from ${sf}$ to ${sf}. Wondering how first even worked since it requires solidityFramework at the end of the path.

[technophile-04]

Thanks @rin-st, makes sense!

Note: I changed regex from ${sf}$ to ${sf}. Wondering how first even worked since it requires solidityFramework at the end of the path.

I think we added that assuming the folder structure of local extensions(solidity framework) since their path follows ~extensionName ~solidity-framework/hardhat/packages/hardhat, we added that in https://github.com/scaffold-eth/create-eth/pull/90/files.

But yeah I the current logic makes more sense 🙌