Added via_ir Detection for Foundry Projects in Ape

[shwetd19]

Description

This PR fixes issue #2564 , where Ape’s FoundryProject class does not detect the via_ir setting from Foundry’s foundry.toml configuration file.

The change updates the _parse_solidity_config method in src/ape_pm/project.py to read the via_ir key and include it in the Solidity compiler configuration as viaIR. This ensures Ape respects Foundry’s via_ir setting during compilation, aligning with Foundry’s behavior.

Changes Made

• Modified FoundryProject._parse_solidity_config in src/ape_pm/project.py to check for via_ir in the parsed foundry.toml data.
• Added via_ir to the sol_cfg dictionary as "viaIR": via_ir when present, preserving existing logic for other settings (version, evm_version, remappings).
• While ensuring safe handling of missing via_ir keys using data.get("via_ir").

---

Testing

• Created a test Foundry project with:

  [profile.default]
  via_ir = true

  in foundry.toml.

• Ran ape compile to verify that the compiler applies the viaIR pipeline (confirmed via compiler output).

• Tested with via_ir absent to ensure no unintended side effects.

• [Optional] Added a unit test in tests/test_foundry_project.py to validate via_ir detection.

---

Thank you for considering this contribution! 🚀

[antazoey]

please also edit this test and the foundry_toml fixture to include the new value

[antazoey]

It is snake case: https://github.com/ApeWorX/ape-solidity/blob/main/ape_solidity/compiler.py#L142

Suggested change

	sol_cfg["viaIR"] = via_ir
	sol_cfg["via_ir"] = via_ir

note: we are not editing solidity directly but the ape-solidity plugin which handles it

[shwetd19]

Hey @antazoey I did the change for via_ir and updated it but I'm not able to do the change for foundry_toml , pls help me out there

[antazoey]

Hey @antazoey I did the change for via_ir and updated it but I'm not able to do the change for foundry_toml , pls help me out there

Right now, the foundry toml fixture looks like this:

(from tests/functional/test_project.py)

@pytest.fixture(scope="module")
def foundry_toml():
    return """
[profile.default]
src = 'src'
out = 'out'
libs = ['lib']
solc = "0.8.18"
evm_version = 'cancun'

remappings = [
    'forge-std/=lib/forge-std/src/',
    '@openzeppelin/=lib/openzeppelin-contracts/',
]
""".lstrip()

it is basically just the string version of a foundry TOML file, for configuring foundry. Foundry-based projects will have these (similar to how Ape has an ape-config.yaml).

The project API layer in Ape converts 1 config to another for the sake of successfully using dependencies that happen to be foundry projects, as well as being able to use ape command directly in a foundry project. Much of this integration needs work, so I appreciate you fixing the via_ir.

Anyway, you need to update this fixture to have via_ir = true, so we can test that our integration sucessfully reads and parses the value thanks to your change.

The via_ir field goes in the [profile.default] stanza, so you can plop it right under the evm_version part.

After this is done, head over to the TestFoundryProject::test_extract_config in the same module - add an assertion under the evm_version part like

assert actual_sol["via_ir"] is True