add tool slither-interface

[0xGusMcCrae]

As per issue #1893

This tool outputs an interface file for a given contract input. The input can be a local source file or a deployment address if the contract is verified on etherscan.

Usage:
slither-interface <ContractName> <Source File or Address>

For example:
slither-interface WETH9 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
will output the interface file IWETH9.sol in crytic-export/interfaces.

There are optional flags for unrolling structs or excluding structs/enums/errors/events.

Tests can be found in scripts/ci_test_interface.sh

I believe I did testing/linting correctly, let me know if I need to fix anything.

[0xalpharush]

We need to add "interface" to this list so the test is run in CI

slither/.github/workflows/ci.yml

Line 45 in 0ec4874

"upgradability"]

[0xGusMcCrae]

I'm not sure why the tests are failing on Windows but not Ubuntu. Any ideas?

Is there a different directory structure that's causing it to be unable to find the test contract?

[elopez]

Should this be crytic-export/interfaces/IWETH9.sol? ditto for the other occurrences below.

[elopez]

As for the test failures on Windows, it might be caused by diff picking up on the different line endings. The test_N.sol files commited in the repo have \n endings, and autocrlf is disabled for solidity code in tests/. The files created by slither-interface will have \r\n line endings on Windows -- files are created with open(....'w') i.e. in text mode, which adjusts line endings to the platform specific variant.

You can pass --strip-trailing-cr to diff, which should make it skip the \r when comparing lines and hopefully fix the issue 👍

[montyly]

This is great work, thanks @0xGusMcCrae

[0xGusMcCrae]

Thanks, glad I could help out!