feat: make scram an optional feature

.github/workflows/ci.yml

@@ -51,10 +51,14 @@ jobs:
  with:
  toolchain: ${{ matrix.rust }}
  override: true
- - name: Build and run tests
- run: cargo test --all-features
+ - name: Build and run tests on default feature set
+ run: cargo test
  - name: Run tests on minimal feature set
  run: cargo test --no-default-features
+ - name: Run tests on additional scram+ring feature set
+ run: cargo test --features server-api-scram-ring
+ - name: Run tests on additional scram+aws-lc-rs feature set
+ run: cargo test --features server-api-scram-aws-lc-rs
 
  integration:
  name: Integration tests

Cargo.toml

@@ -44,9 +44,9 @@ postgres-types = { version = "0.2", features = [
 chrono = { version = "0.4", features = ["std"], optional = true }
 
 [features]
-default = ["server-api-ring"]
-server-api-ring = ["server-api", "ring"]
-server-api-aws-lc-rs = ["server-api", "aws-lc-rs"]
+default = ["server-api"]
+server-api-scram-ring = ["server-api", "ring", "dep:base64", "dep:stringprep", "dep:x509-certificate"]
+server-api-scram-aws-lc-rs = ["server-api", "aws-lc-rs", "dep:base64", "dep:stringprep", "dep:x509-certificate"]
 ring = ["dep:ring", "tokio-rustls/ring"]
 aws-lc-rs = ["dep:aws-lc-rs", "tokio-rustls/aws-lc-rs"]
 server-api = [
@@ -58,9 +58,6 @@ server-api = [
  "dep:rand",
  "dep:md5",
  "dep:hex",
- "dep:base64",
- "dep:stringprep",
- "dep:x509-certificate",
  "dep:postgres-types",
  "dep:chrono",
 ]
@@ -111,4 +108,4 @@ required-features = ["server-api"]
 
 [[example]]
 name = "scram"
-required-features = ["server-api"]
+required-features = ["server-api-scram-aws-lc-rs"]

src/api/auth/mod.rs

@@ -192,4 +192,8 @@ where
 pub mod cleartext;
 pub mod md5pass;
 pub mod noop;
+#[cfg(any(
+ feature = "server-api-scram-ring",
+ feature = "server-api-scram-aws-lc-rs"
+))]
 pub mod scram;