Handle renamed dependencies coming from Cargo

This commit is intended to be coupled with
rust-lang/cargo#5993 where Cargo will start sending the
registry more information about locally renamed crates to persist into the
index.

src/git.rs

@@ -34,6 +34,8 @@ pub struct Dependency {
     pub default_features: bool,
     pub target: Option<String>,
     pub kind: Option<DependencyKind>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub package: Option<String>,
 }
 
 fn index_file(base: &Path, name: &str) -> PathBuf {

src/models/dependency.rs

@@ -96,15 +96,26 @@ pub fn add_dependencies(
                 ));
             }
 
+            // If this dependency has an explicit name in `Cargo.toml` that
+            // means that the `name` we have listed is actually the package name
+            // that we're depending on. The `name` listed in the index is the
+            // Cargo.toml-written-name which is what cargo uses for
+            // `--extern foo=...`
+            let (name, package) = match &dep.explicit_name_in_toml {
+                Some(explicit) => (explicit.to_string(), Some(dep.name.to_string())),
+                None => (dep.name.to_string(), None),
+            };
+
             Ok((
                 git::Dependency {
-                    name: dep.name.to_string(),
+                    name,
                     req: dep.version_req.to_string(),
                     features: dep.features.iter().map(|s| s.to_string()).collect(),
                     optional: dep.optional,
                     default_features: dep.default_features,
                     target: dep.target.clone(),
                     kind: dep.kind.or(Some(DependencyKind::Normal)),
+                    package,
                 },
                 (
                     version_id.eq(target_version_id),

src/tests/http-data/krate_new_renamed_crate

@@ -0,0 +1 @@
+[{"request":{"uri":"http://alexcrichton-test.s3.amazonaws.com/crates/new-krate/new-krate-1.0.0.crate","method":"PUT","headers":[["date","Fri, 15 Sep 2017 07:53:06 -0700"],["content-length","35"],["content-type","application/x-tar"],["proxy-connection","Keep-Alive"],["accept","*/*"],["host","alexcrichton-test.s3.amazonaws.com"],["authorization","AWS AKIAICL5IWUZYWWKA7JA:uDc39eNdF6CcwB+q+JwKsoDLQc4="]],"body":[31,139,8,0,0,0,0,0,0,255,237,192,1,1,0,0,0,130,32,255,175,110,72,80,192,171,1,46,175,181,239,0,4,0,0]},"response":{"status":200,"headers":[["content-length","0"],["Server","AmazonS3"],["date","Fri, 15 Sep 2017 14:53:07 GMT"],["ETag","\"f9016ad360cebb4fe2e6e96e5949f022\""],["x-amz-id-2","JdIvnNTw53aqXjBIqBLNuN4kxf/w1XWX+xuIiGBDYy7yzOSDuAMtBSrTW4ZWetcCIdqCUHuQ51A="],["x-amz-request-id","26589A5E52F8395C"]],"body":[]}}]

src/tests/krate.rs

@@ -724,6 +724,7 @@ fn new_krate_with_dependency() {
         version_req: u::CrateVersionReq(semver::VersionReq::parse(">= 0").unwrap()),
         target: None,
         kind: None,
+        explicit_name_in_toml: None,
     };
     let mut req = new_req_full(Arc::clone(&app), krate("new_dep"), "1.0.0", vec![dep]);
     {
@@ -750,6 +751,45 @@ fn new_krate_with_dependency() {
     assert_eq!(p.deps[0].name, "foo_dep");
 }
 
+#[test]
+fn new_renamed_crate() {
+    let (_b, app, middle) = app();
+    let dep = u::CrateDependency {
+        name: u::CrateName("package-name".to_string()),
+        optional: false,
+        default_features: true,
+        features: Vec::new(),
+        version_req: u::CrateVersionReq(semver::VersionReq::parse(">= 0").unwrap()),
+        target: None,
+        kind: None,
+        explicit_name_in_toml: Some(u::CrateName("my-name".to_string())),
+    };
+    let mut req = new_req_full(Arc::clone(&app), krate("new-krate"), "1.0.0", vec![dep]);
+    {
+        let conn = app.diesel_database.get().unwrap();
+        let user = new_user("user").create_or_update(&conn).unwrap();
+        sign_in_as(&mut req, &user);
+        CrateBuilder::new("package-name", user.id).expect_build(&conn);
+    }
+
+    let mut response = ok_resp!(middle.call(&mut req));
+    ::json::<GoodCrate>(&mut response);
+
+    let path = ::git::checkout().join("ne/w-/new-krate");
+    assert!(path.exists());
+    let mut contents = String::new();
+    File::open(&path)
+        .unwrap()
+        .read_to_string(&mut contents)
+        .unwrap();
+    let p: git::Crate = serde_json::from_str(&contents).unwrap();
+    assert_eq!(p.name, "new-krate");
+    assert_eq!(p.vers, "1.0.0");
+    assert_eq!(p.deps.len(), 1);
+    assert_eq!(p.deps[0].name, "my-name");
+    assert_eq!(p.deps[0].package, Some("package-name".to_string()));
+}
+
 #[test]
 fn new_krate_non_canon_crate_name_dependencies() {
     let (_b, app, middle) = app();
@@ -761,6 +801,7 @@ fn new_krate_non_canon_crate_name_dependencies() {
         version_req: u::CrateVersionReq(semver::VersionReq::parse(">= 0").unwrap()),
         target: None,
         kind: None,
+        explicit_name_in_toml: None,
     }];
     let mut req = new_req_full(Arc::clone(&app), krate("new_dep"), "1.0.0", deps);
     {
@@ -785,6 +826,7 @@ fn new_krate_with_wildcard_dependency() {
         version_req: u::CrateVersionReq(semver::VersionReq::parse("*").unwrap()),
         target: None,
         kind: None,
+        explicit_name_in_toml: None,
     };
     let mut req = new_req_full(Arc::clone(&app), krate("new_wild"), "1.0.0", vec![dep]);
     {
@@ -1113,6 +1155,7 @@ fn new_krate_dependency_missing() {
         version_req: u::CrateVersionReq(semver::VersionReq::parse(">= 0.0.0").unwrap()),
         target: None,
         kind: None,
+        explicit_name_in_toml: None,
     };
     let mut req = new_req_full(Arc::clone(&app), krate("foo_missing"), "1.0.0", vec![dep]);
     sign_in(&mut req, &app);

src/views/krate_publish.rs

@@ -63,6 +63,7 @@ pub struct CrateDependency {
     pub version_req: CrateVersionReq,
     pub target: Option<String>,
     pub kind: Option<DependencyKind>,
+    pub explicit_name_in_toml: Option<CrateName>,
 }
 
 impl<'de> Deserialize<'de> for CrateName {