chore: make ethers-solc optional (#1463)

* chore: make ethers-solc optional

* chore: update CHANGELOG

* add missing requirement

* add abigen req

CHANGELOG.md

@@ -104,6 +104,8 @@
 
 ### Unreleased
 
+- Make `ethers-solc` optional dependency of `ethers`, needs `ethers-solc` feature to activate
+  [#1463](https://github.com/gakonst/ethers-rs/pull/1463)
 - Add `rawMetadata:String` field to configurable contract output 
   [#1365](https://github.com/gakonst/ethers-rs/pull/1365)
 - Use relative source paths and `solc --base-path`

Cargo.toml

@@ -76,10 +76,9 @@ abigen = ["ethers-contract/abigen"]
 ### abigen without reqwest
 abigen-offline = ["ethers-contract/abigen-offline"]
 ## solc
-solc-async = ["ethers-solc/async"]
-solc-full = ["ethers-solc/full"]
-solc-tests = ["ethers-solc/tests"]
-solc-sha2-asm = ["ethers-solc/asm"]
+solc-full = ["ethers-solc", "ethers-solc/full"]
+solc-tests = ["ethers-solc", "ethers-solc/tests"]
+solc-sha2-asm = ["ethers-solc", "ethers-solc/asm"]
 
 [dependencies]
 ethers-addressbook = { version = "^0.13.0", default-features = false, path = "./ethers-addressbook" }
@@ -88,7 +87,7 @@ ethers-core = { version = "^0.13.0", default-features = false, path = "./ethers-
 ethers-providers = { version = "^0.13.0", default-features = false, path = "./ethers-providers" }
 ethers-signers = { version = "^0.13.0", default-features = false, path = "./ethers-signers" }
 ethers-middleware = { version = "^0.13.0", default-features = false, path = "./ethers-middleware" }
-ethers-solc = { version = "^0.13.0", default-features = false, path = "./ethers-solc" }
+ethers-solc = { version = "^0.13.0", default-features = false, path = "./ethers-solc", optional = true }
 ethers-etherscan = { version = "^0.13.0", default-features = false, path = "./ethers-etherscan" }
 
 [dev-dependencies]
@@ -112,17 +111,25 @@ bytes = "1.1.0"
 opt-level = "s"
 
 
+[[example]]
+name = "abigen"
+path = "examples/abigen.rs"
+required-features = ["ethers-solc"]
+
 [[example]]
 name = "contract_human_readable"
 path = "examples/contract_human_readable.rs"
+required-features = ["ethers-solc"]
 
 [[example]]
 name = "contract_with_abi"
 path = "examples/contract_with_abi.rs"
+required-features = ["ethers-solc"]
 
 [[example]]
 name = "contract_with_abi_and_bytecode"
 path = "examples/contract_with_abi_and_bytecode.rs"
+required-features = ["ethers-solc"]
 
 [[example]]
 name = "ipc"
@@ -137,7 +144,7 @@ required-features = ["ledger"]
 [[example]]
 name = "moonbeam_with_abi"
 path = "examples/moonbeam_with_abi.rs"
-required-features = ["legacy"]
+required-features = ["legacy", "ethers-solc"]
 
 [[example]]
 name = "trezor"

scripts/examples.sh

@@ -20,5 +20,5 @@ for file in examples/*.rs; do
     continue
   fi
   echo "running: $file"
-  cargo r -p ethers --example "$(basename "$name")"
+  cargo r -p ethers --example "$(basename "$name")" --features "ethers-solc"
 done

src/lib.rs

@@ -114,6 +114,7 @@ pub mod signers {
     pub use ethers_signers::*;
 }
 
+#[cfg(feature = "ethers-solc")]
 #[doc = include_str!("../assets/SOLC_README.md")]
 pub mod solc {
     pub use ethers_solc::*;
@@ -141,6 +142,7 @@ pub mod prelude {
 
     pub use super::signers::*;
 
+    #[cfg(feature = "ethers-solc")]
     pub use super::solc::*;
 
     pub use super::etherscan::*;