refactor: extract linking logic to separate crate (foundry-rs#7329)

* refactor: extract linking logic to separate crate

* fix cargo check

Author: klkvr

Cargo.lock

@@ -133,6 +133,7 @@ foundry-evm-traces = { path = "crates/evm/traces" }
 foundry-macros = { path = "crates/macros" }
 foundry-test-utils = { path = "crates/test-utils" }
 foundry-wallets = { path = "crates/wallets" }
+foundry-linking = { path = "crates/linking" }
 
 # solc & compilation utilities
 foundry-block-explorers = { version = "0.2.3", default-features = false }

Cargo.toml

@@ -25,6 +25,7 @@ foundry-compilers = { workspace = true, features = ["full"] }
 foundry-config.workspace = true
 foundry-evm.workspace = true
 foundry-wallets.workspace = true
+foundry-linking.workspace = true
 
 ethers-contract.workspace = true
 ethers-core.workspace = true

crates/forge/Cargo.toml

@@ -1,7 +1,6 @@
 use super::{ScriptArgs, ScriptConfig};
 use alloy_primitives::{Address, Bytes};
 use eyre::{Context, ContextCompat, Result};
-use forge::link::{LinkOutput, Linker};
 use foundry_cli::utils::get_cached_entry_by_name;
 use foundry_common::compile::{self, ContractSources, ProjectCompiler};
 use foundry_compilers::{
@@ -11,6 +10,7 @@ use foundry_compilers::{
     info::ContractInfo,
     ArtifactId, Project, ProjectCompileOutput,
 };
+use foundry_linking::{LinkOutput, Linker};
 use std::str::FromStr;
 
 impl ScriptArgs {

crates/forge/bin/cmd/script/build.rs

@@ -7,7 +7,7 @@ use alloy_primitives::{Address, Bytes};
 use ethers_providers::Middleware;
 use ethers_signers::Signer;
 use eyre::{OptionExt, Result};
-use forge::{link::Linker, traces::CallTraceDecoder};
+use forge::traces::CallTraceDecoder;
 use foundry_cli::utils::LoadConfig;
 use foundry_common::{
     contracts::flatten_contracts, provider::ethers::try_get_http_provider, types::ToAlloy,
@@ -18,6 +18,7 @@ use foundry_compilers::{
 };
 use foundry_debugger::Debugger;
 use foundry_evm::inspectors::cheatcodes::{BroadcastableTransaction, ScriptWallets};
+use foundry_linking::Linker;
 use foundry_wallets::WalletSigner;
 use std::{collections::HashMap, sync::Arc};
 

crates/forge/bin/cmd/script/cmd.rs

@@ -13,8 +13,6 @@ pub mod coverage;
 
 pub mod gas_report;
 
-pub mod link;
-
 mod multi_runner;
 pub use multi_runner::{MultiContractRunner, MultiContractRunnerBuilder};
 

crates/forge/src/lib.rs

@@ -1,10 +1,6 @@
 //! Forge test runner for multiple contracts.
 
-use crate::{
-    link::{LinkOutput, Linker},
-    result::SuiteResult,
-    ContractRunner, TestFilter, TestOptions,
-};
+use crate::{result::SuiteResult, ContractRunner, TestFilter, TestOptions};
 use alloy_json_abi::{Function, JsonAbi};
 use alloy_primitives::{Address, Bytes, U256};
 use eyre::Result;
@@ -19,6 +15,7 @@ use foundry_evm::{
     opts::EvmOpts,
     revm,
 };
+use foundry_linking::{LinkOutput, Linker};
 use rayon::prelude::*;
 use revm::primitives::SpecId;
 use std::{

crates/forge/src/multi_runner.rs

@@ -0,0 +1,17 @@
+[package]
+name = "foundry-linking"
+description = "Smart contract linking tools"
+
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+authors.workspace = true
+license.workspace = true
+homepage.workspace = true
+repository.workspace = true
+
+[dependencies]
+foundry-compilers = { workspace = true, features = ["full"] }
+semver = "1"
+alloy-primitives = { workspace = true, features = ["rlp"] }
+thiserror = "1"

crates/linking/Cargo.toml

@@ -1,3 +1,5 @@
+#![cfg_attr(not(test), warn(unused_crate_dependencies))]
+
 use alloy_primitives::{Address, Bytes};
 use foundry_compilers::{
     artifacts::{CompactContractBytecode, Libraries},