fix: improve error for token & provider

Author: arlosi

src/cargo/util/auth/mod.rs

@@ -108,21 +108,26 @@ fn credential_provider(config: &Config, sid: &SourceId) -> CargoResult<Vec<Vec<S
             secret_key,
             ..
         }) if config.cli_unstable().credential_process => {
+            let provider = resolve_credential_alias(config, provider);
             if let Some(token) = token {
-                config.shell().warn(format!(
-                    "{sid} has a token configured in {} that will be ignored \
-                    because a credential-provider is configured for this registry`",
-                    token.definition
-                ))?;
+                if provider[0] != "cargo:token" {
+                    config.shell().warn(format!(
+                        "{sid} has a token configured in {} that will be ignored \
+                        because this registry is configured to use credential-provider `{}`",
+                        token.definition, provider[0],
+                    ))?;
+                }
             }
             if let Some(secret_key) = secret_key {
-                config.shell().warn(format!(
-                    "{sid} has a secret-key configured in {} that will be ignored \
-                    because a credential-provider is configured for this registry`",
-                    secret_key.definition
-                ))?;
+                if provider[0] != "cargo:paseto" {
+                    config.shell().warn(format!(
+                        "{sid} has a secret-key configured in {} that will be ignored \
+                        because this registry is configured to use credential-provider `{}`",
+                        secret_key.definition, provider[0],
+                    ))?;
+                }
             }
-            vec![resolve_credential_alias(config, provider)]
+            vec![provider]
         }
 
         // Warning for both `token` and `secret-key`, stating which will be ignored

tests/testsuite/credential_process.rs

@@ -447,13 +447,31 @@ fn multiple_providers() {
 
 #[cargo_test]
 fn both_token_and_provider() {
+    let server = registry::RegistryBuilder::new()
+        .credential_provider(&["cargo:paseto"])
+        .build();
+
+    cargo_process("login -Z credential-process -Z asymmetric-token")
+        .masquerade_as_nightly_cargo(&["credential-process", "asymmetric-token"])
+        .replace_crates_io(server.index_url())
+        .with_stderr(
+            r#"[UPDATING] [..]
+[WARNING] registry `crates-io` has a token configured in [..] that will be ignored because this registry is configured to use credential-provider `cargo:paseto`
+k3.public[..]
+"#,
+        )
+        .run();
+}
+
+#[cargo_test]
+fn registry_provider_overrides_global() {
     let server = registry::RegistryBuilder::new().build();
     cargo_util::paths::append(
         &paths::home().join(".cargo/config"),
         format!(
             r#"
                 [registry]
-                credential-provider = ["cargo:token"]
+                global-credential-providers = ["should-not-be-called"]
             "#,
         )
         .as_bytes(),
@@ -462,10 +480,10 @@ fn both_token_and_provider() {
 
     cargo_process("login -Z credential-process -v abcdefg")
         .masquerade_as_nightly_cargo(&["credential-process"])
+        .env("CARGO_REGISTRY_CREDENTIAL_PROVIDER", "cargo:token")
         .replace_crates_io(server.index_url())
         .with_stderr(
             r#"[UPDATING] [..]
-[WARNING] registry `crates-io` has a token configured in [..]credentials.toml that will be ignored because a credential-provider is configured for this registry`
 [CREDENTIAL] cargo:token login crates-io
 [LOGIN] token for `crates-io` saved
 "#,