fix: mistakenly changed sources to in-memory manifest

src/ape/managers/project.py

@@ -2125,34 +2125,37 @@ def __getattr__(self, item: str) -> Any:
             message = getattr(err, "message", str(err))
             did_append = False
 
-            all_files = get_all_files_in_directory(self.contracts_folder)
-            for path in all_files:
-                # Possibly, the user was trying to use a file name instead.
-                if path.stem != item:
-                    continue
+            if item not in (self.manifest.contract_types or {}):
+                all_files = get_all_files_in_directory(self.contracts_folder)
+                for path in all_files:
+                    # Possibly, the user was trying to use a file name instead.
+                    if path.stem != item:
+                        continue
 
-                if message and message[-1] not in (".", "?", "!"):
-                    message = f"{message}."
-                message = (
-                    f"{message} However, there is a source file named '{path.name}', "
-                    "did you mean to reference a contract name from this source file?"
-                )
-                did_append = True
-                break
-
-            # Possibly, the user does not have compiler plugins installed or working.
-            missing_exts = set()
-            for path in all_files:
-                if ext := get_full_extension(path):
-                    if ext not in self.compiler_manager.registered_compilers:
-                        missing_exts.add(ext)
-
-            if missing_exts:
-                start = "Else, could" if did_append else "Could"
-                message = (
-                    f"{message} {start} it be from one of the "
-                    "missing compilers for extensions: " + f'{", ".join(sorted(missing_exts))}?'
-                )
+                    if message and message[-1] not in (".", "?", "!"):
+                        message = f"{message}."
+
+                    message = (
+                        f"{message} However, there is a source file named '{path.name}'. "
+                        "This file may not be compiling (see error above), or maybe you meant "
+                        "to reference a contract name from this source file?"
+                    )
+                    did_append = True
+                    break
+
+                # Possibly, the user does not have compiler plugins installed or working.
+                missing_exts = set()
+                for path in all_files:
+                    if ext := get_full_extension(path):
+                        if ext not in self.compiler_manager.registered_compilers:
+                            missing_exts.add(ext)
+
+                if missing_exts:
+                    start = "Else, could" if did_append else "Could"
+                    message = (
+                        f"{message} {start} it be from one of the "
+                        "missing compilers for extensions: " + f'{", ".join(sorted(missing_exts))}?'
+                    )
 
             err.args = (message,)
             raise  # The same exception (keep the stack the same height).
@@ -2356,9 +2359,10 @@ def isolate_in_tempdir(self, **config_override) -> Iterator["LocalProject"]:
             yield self
 
         else:
-            # Add sources to manifest memory, in case they are missing.
-            self._manifest.sources = dict(self.sources.items())
+            sources = dict(self.sources.items())
             with super().isolate_in_tempdir(**config_override) as project:
+                # Add sources to manifest memory, in case they are missing.
+                project.manifest.sources = sources
                 yield project
 
     def unpack(self, destination: Path, config_override: Optional[dict] = None) -> "LocalProject":

src/ape_pm/compiler.py

@@ -54,15 +54,7 @@ def compile(
 
             code = src_path.read_text()
             source_id = source_ids[path]
-            try:
-                # NOTE: Always set the source ID to the source of the JSON file
-                #   to avoid manifest corruptions later on.
-                contract_type = self.compile_code(code, project=project, sourceId=source_id)
-            except CompilerError as err:
-                logger.warning(
-                    f"Unable to parse {ContractType.__name__} from '{source_id}'. Reason: {err}"
-                )
-                continue
+            contract_type = self.compile_code(code, project=project, sourceId=source_id)
 
             # NOTE: Try getting name/ ID from code-JSON first.
             #   That's why this is not part of `**kwargs` in `compile_code()`.

tests/functional/test_project.py

@@ -148,6 +148,25 @@ def test_isolate_in_tempdir(project):
         assert not tmp_project.manifest_path.is_file()
 
 
+def test_isolate_in_tempdir_does_not_alter_sources(project):
+    # First, create a bad source.
+    with project.temp_config(contracts_folder="tests"):
+        new_src = project.contracts_folder / "newsource.json"
+        new_src.write_text("this is not json, oops")
+        project.sources.refresh()  # Only need to be called when run with other tests.
+
+        try:
+            with project.isolate_in_tempdir() as tmp_project:
+                # The new (bad) source should be in the temp project.
+                assert "tests/newsource.json" in (tmp_project.manifest.sources or {}), project.path
+        finally:
+            new_src.unlink()
+            project.sources.refresh()
+
+        # Ensure "newsource" did not persist in the in-memory manifest.
+        assert "tests/newsource.json" not in (project.manifest.sources or {})
+
+
 def test_in_tempdir(project, tmp_project):
     assert not project.in_tempdir
     assert tmp_project.in_tempdir
@@ -200,8 +219,9 @@ def test_getattr_same_name_as_source_file(project_with_source_files_contract):
     expected = (
         r"'LocalProject' object has no attribute 'ContractA'\. "
         r"Also checked extra\(s\) 'contracts'\. "
-        r"However, there is a source file named 'ContractA\.sol', "
-        r"did you mean to reference a contract name from this source file\? "
+        r"However, there is a source file named 'ContractA\.sol'\. "
+        r"This file may not be compiling \(see error above\), "
+        r"or maybe you meant to reference a contract name from this source file\? "
         r"Else, could it be from one of the missing compilers for extensions: .*"
     )
     with pytest.raises(AttributeError, match=expected):
@@ -587,7 +607,7 @@ def test_project_api_foundry_and_ape_config_found(foundry_toml):
 
 def test_get_contract(project_with_contracts):
     actual = project_with_contracts.get_contract("Other")
-    assert isinstance(actual, ContractContainer)
+    assert isinstance(actual, ContractContainer), f"{type(actual)}"
     assert actual.contract_type.name == "Other"
 
     # Ensure manifest is only loaded once by none-ing out the path.

tests/integration/cli/test_compile.py

@@ -147,6 +147,33 @@ def test_compile_when_sources_change(ape_cli, runner, integ_project, clean_cache
     assert "contracts/Interface.json" not in result.output
 
 
+@skip_projects_except("multiple-interfaces")
+def test_compile_when_sources_change_problematically(ape_cli, runner, integ_project, clean_cache):
+    """
+    There was a bug when sources changes but had errors, that the old sources continued
+    to be used and the errors were swallowed.
+    """
+    source_path = integ_project.contracts_folder / "Interface.json"
+    content = source_path.read_text()
+    assert "bar" in content, "Test setup failed - unexpected content"
+
+    result = runner.invoke(
+        ape_cli, ("compile", "--project", f"{integ_project.path}"), catch_exceptions=False
+    )
+    assert result.exit_code == 0, result.output
+
+    # Change the contents of a file in a problematic way.
+    source_path = integ_project.contracts_folder / "Interface.json"
+    modified_source_text = source_path.read_text().replace("{", "BRACKET")
+    source_path.unlink()
+    source_path.touch()
+    source_path.write_text(modified_source_text, encoding="utf8")
+    result = runner.invoke(
+        ape_cli, ("compile", "--project", f"{integ_project.path}"), catch_exceptions=False
+    )
+    assert result.exit_code != 0, result.output
+
+
 @skip_projects_except("multiple-interfaces")
 def test_compile_when_contract_type_collision(ape_cli, runner, integ_project, clean_cache):
     source_path = integ_project.contracts_folder / "Interface.json"