subxt-core crate (#1466)

* start migrating, broken

* first iteration of updating

* fmt and clippy

* add Composite<u32> decoding via scale value patch

* bump scale type gen versions

* fix decoding with new scale decode

* compiling with changed deps

* core utils, condig, client, metadata

* core crate compiling

* signer crate no once lock

* add core to no-std-tests, change imports

* broken commit, start pulling everything together in subxt

* port more things to subxt

* events in core crate, extrinsics sadly much more difficult

* almost all examples pass again

* dynamic values fix in examples

* fix no std issue and fmt

* remove unused dependencies

* fix lightclient impl

* runtime version refactor

* formatting and addressing nits

* more comments addressed

* update wasm example and no-std-signer tests

* other nits and error impl on signer errors

* fix feature flag

* fix runtime version refactor

* fix doc links

* fix integration tests

* fix feature flag gated client state

* fix native feature in CI

* fix lightclient utils

* make imports more lean in subxt-core

* integrate changes from subxt-core imports into subxt

* other changes in subxt simplify imports more

* fix  and docs

* doc false for cli

* fix clippy

* remove events block hash in tests

* codegen no-std support in generated code

* export alloc crate for no-std codegen

* fix doc test

* implement James comments

* remove std traits, use core traits instead

* address nits

* remove unusued dep in no-std tests

* fix Box import in no_std

* sp-crypto-hashing instead of sp-core-hashing

* bump scale-typegen, add no std codegen tests

* fix some things

* replace unmaintained derivative with derive_where to remove non-canonical warnings

* fmt

* remove unused dep

* fix deps

* update artifacts to fix type ID mismatches

* bump to latest scale-typegen

---------

Co-authored-by: James Wilson <james@jsdw.me>

signer/Cargo.toml

@@ -15,7 +15,7 @@ description = "Sign extrinsics to be submitted by Subxt"
 keywords = ["parity", "subxt", "extrinsic", "signer"]
 
 [features]
-default = ["sr25519", "ecdsa", "subxt", "std", "native"]
+default = ["sr25519", "ecdsa", "subxt", "std"]
 std = ["regex/std", "sp-crypto-hashing/std", "pbkdf2/std", "sha2/std", "hmac/std", "bip39/std", "schnorrkel/std", "secp256k1/std", "sp-core/std"]
 
 # Pick the signer implementation(s) you need by enabling the
@@ -27,15 +27,15 @@ ecdsa = ["secp256k1"]
 
 # Make the keypair algorithms here compatible with Subxt's Signer trait,
 # so that they can be used to sign transactions for compatible chains.
-subxt = ["dep:subxt"]
+subxt = ["dep:subxt-core"]
 
 # The getrandom package is used via schnorrkel. We need to enable the JS
 # feature on it if compiling for the web.
-web = ["getrandom/js", "subxt?/web"]
-native = ["subxt?/native"]
+web = ["getrandom/js"]
 
 [dependencies]
-subxt = { workspace = true, optional = true }
+subxt-core = { workspace = true, optional = true, default-features = false }
+secrecy = { workspace = true }
 regex = { workspace = true, features = ["unicode"] }
 hex = { workspace = true }
 cfg-if = { workspace = true }
@@ -49,15 +49,14 @@ zeroize = { workspace = true }
 bip39 = { workspace = true }
 schnorrkel = { workspace = true, optional = true }
 secp256k1 = { workspace = true, optional = true, features = ["alloc", "recovery"] }
-secrecy = { workspace = true }
 
 
 # We only pull this in to enable the JS flag for schnorrkel to use.
 getrandom = { workspace = true, optional = true }
 
 [dev-dependencies]
-sp-core = { workspace = true }
 sp-keyring = { workspace = true }
+sp-core = { workspace = true }
 
 [package.metadata.cargo-machete]
 ignored = ["getrandom"]

signer/src/ecdsa.rs

@@ -272,9 +272,9 @@ pub mod dev {
 mod subxt_compat {
     use super::*;
 
-    use subxt::config::Config;
-    use subxt::tx::Signer as SignerT;
-    use subxt::utils::{AccountId32, MultiAddress, MultiSignature};
+    use subxt_core::config::Config;
+    use subxt_core::tx::Signer as SignerT;
+    use subxt_core::utils::{AccountId32, MultiAddress, MultiSignature};
 
     impl From<Signature> for MultiSignature {
         fn from(value: Signature) -> Self {

signer/src/sr25519.rs

@@ -258,9 +258,11 @@ pub mod dev {
 mod subxt_compat {
     use super::*;
 
-    use subxt::config::Config;
-    use subxt::tx::Signer as SignerT;
-    use subxt::utils::{AccountId32, MultiAddress, MultiSignature};
+    use subxt_core::{
+        tx::Signer as SignerT,
+        utils::{AccountId32, MultiAddress, MultiSignature},
+        Config,
+    };
 
     impl From<Signature> for MultiSignature {
         fn from(value: Signature) -> Self {