chore(cawg_identity): Use stricter formatting rules for CAWG identity…

… SDK (#826)

.github/workflows/nightly.yml

@@ -147,6 +147,7 @@ jobs:
         echo Will add nightly suffix $NIGHTLY_SUFFIX
 
         sed -i "s/^version = \"\\(.*\\)\"/version = \"\\1$NIGHTLY_SUFFIX\"/" sdk/Cargo.toml
+        sed -i "s/path = \"..\/sdk\", version = \"\\(.*\\)\"/path = \"..\/sdk\", version = \"\\1$NIGHTLY_SUFFIX\"/" cawg_identity/Cargo.toml
         sed -i "s/path = \"..\/sdk\", version = \"\\(.*\\)\"/path = \"..\/sdk\", version = \"\\1$NIGHTLY_SUFFIX\"/" cli/Cargo.toml
         
         cargo update -w

cawg_identity/rustfmt.toml

@@ -0,0 +1,17 @@
+# IMPORTANT: PR validation uses nightly version of
+# rustfmt.
+
+# Invoke by using:
+#
+# rustup toolchain add nightly
+# cargo +nightly fmt
+
+blank_lines_upper_bound = 1
+empty_item_single_line = true
+format_code_in_doc_comments = true
+group_imports = "StdExternalCrate"
+hex_literal_case = "Lower"
+imports_granularity = "Crate"
+reorder_impl_items = true
+unstable_features = true
+wrap_comments = true

cawg_identity/src/identity_assertion/signer_payload.rs

@@ -17,9 +17,14 @@ use serde::{Deserialize, Serialize};
 
 use crate::internal::debug_byte_slice::DebugByteSlice;
 
-/// A set of _referenced assertions_ and other related data, known overall as the **signer payload.** This binding **SHOULD** generally be construed as authorization of or participation in the creation of the statements described by those assertions and corresponding portions of the C2PA asset in which they appear.
+/// A set of _referenced assertions_ and other related data, known overall as
+/// the **signer payload.** This binding **SHOULD** generally be construed as
+/// authorization of or participation in the creation of the statements
+/// described by those assertions and corresponding portions of the C2PA asset
+/// in which they appear.
 ///
-/// This is described in [§5.1, Overview], of the CAWG Identity Assertion specification.
+/// This is described in [§5.1, Overview], of the CAWG Identity Assertion
+/// specification.
 ///
 /// [§5.1, Overview]: https://cawg.io/identity/1.1-draft/#_overview
 #[derive(Clone, Debug, Deserialize, Eq, Serialize, PartialEq)]

cawg_identity/src/tests/fixtures/async_test_signer.rs

@@ -21,7 +21,8 @@ use c2pa_crypto::raw_signature::{
     async_signer_from_cert_chain_and_private_key, AsyncRawSigner, SigningAlg,
 };
 
-/// Creates an [`AsyncSigner`] instance for testing purposes using test credentials.
+/// Creates an [`AsyncSigner`] instance for testing purposes using test
+/// credentials.
 ///
 /// [`AsyncSigner`]: c2pa::AsyncSigner
 #[cfg(not(target_arch = "wasm32"))]
@@ -33,7 +34,8 @@ pub(crate) fn async_test_signer(alg: SigningAlg) -> Box<dyn AsyncSigner + Sync +
     ))
 }
 
-/// Creates an [`AsyncSigner`] instance for testing purposes using test credentials.
+/// Creates an [`AsyncSigner`] instance for testing purposes using test
+/// credentials.
 ///
 /// [`AsyncSigner`]: c2pa::AsyncSigner
 #[cfg(target_arch = "wasm32")]