Fix relative path in local channel

libmamba/src/specs/unresolved_channel.cpp

@@ -113,7 +113,14 @@ namespace mamba::specs
 
         auto parse_path(std::string_view str) -> std::string
         {
-            auto out = util::path_to_posix(fs::u8path(str).lexically_normal().string());
+            auto out = fs::u8path(str).lexically_normal().string();
+            // Using `lexically_normal()` removes the information of the relative path
+            // => adding it back if originally there
+            if (str.substr(0, 2) == "./")
+            {
+                out = "./" + out;
+            }
+            out = util::path_to_posix(out);
             out = util::rstrip(out, '/');
             return out;
         }

libmamba/tests/src/specs/test_unresolved_channel.cpp

@@ -137,7 +137,15 @@ TEST_SUITE("specs::unresolved_channel")
         {
             const auto uc = UnresolvedChannel::parse("./folder/../folder/.").value();
             CHECK_EQ(uc.type(), Type::Path);
-            CHECK_EQ(uc.location(), "folder");
+            CHECK_EQ(uc.location(), "./folder");
+            CHECK_EQ(uc.platform_filters(), PlatformSet{});
+        }
+
+        SUBCASE("./folder/subfolder/")
+        {
+            const auto uc = UnresolvedChannel::parse("./folder/subfolder/").value();
+            CHECK_EQ(uc.type(), Type::Path);
+            CHECK_EQ(uc.location(), "./folder/subfolder");
             CHECK_EQ(uc.platform_filters(), PlatformSet{});
         }
 

micromamba/tests/test_install.py

@@ -621,6 +621,19 @@ def install_local_package(self):
         res = helpers.install(f"file://{file_path}", "--json", default_channel=False)
         assert "cph_test_data" in {pkg["name"] for pkg in res["actions"]["LINK"]}
 
+    def test_install_local_package_relative_path(self):
+        """Attempts to install a locally built package from a relative local path."""
+        spec = "./micromamba/tests/test-server/repo::test-package"
+        res = helpers.install(spec, "--json", default_channel=False)
+        assert res["success"]
+
+        pkgs = res["actions"]["LINK"]
+        assert len(pkgs) == 1
+        pkg = pkgs[0]
+        assert pkg["name"] == "test-package"
+        assert pkg["version"] == "0.1"
+        assert pkg["url"].startswith("file://")
+
     def test_force_reinstall(self, existing_cache):
         """Force reinstall installs existing package again."""
         res = helpers.install("xtensor", "--json")