feat: Add ability to defer compilation

crytic_compile/crytic_compile.py

@@ -204,7 +204,10 @@ def __init__(self, target: Union[str, AbstractPlatform], **kwargs: str) -> None:
 
         self.libraries: Optional[Dict[str, int]] = _extract_libraries(kwargs.get("compile_libraries", None))  # type: ignore
 
-        self._compile(**kwargs)
+        self.compilation_kwargs = kwargs
+
+        if not kwargs.get("crytic_defer_compilation") == "true":
+            self._compile(**kwargs)
 
     @property
     def target(self) -> str:
@@ -634,6 +637,12 @@ def _compile(self, **kwargs: str) -> None:
                 for source_unit in compilation_unit.source_units.values():
                     source_unit.remove_metadata()
 
+    def compile(self) -> None:
+        """Compile the project. The kwargs provided during object initialization will be used.
+        This function is useful when paired with the `crytic_defer_compilation` kwargs option.
+        """
+        return self._compile(**self.compilation_kwargs)
+
     @staticmethod
     def _run_custom_build(custom_build: str) -> None:
         """Run a custom build

tests/test_metadata.py

@@ -8,16 +8,7 @@
 DAI_BYTECODE = 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
 
-def test_metadata() -> None:
-    """
-    Test the metadata
-
-    Returns:
-
-    """
-    crytic_compile_instance = CryticCompile(
-        "0x6B175474E89094C44Da98b954EedeAC495271d0F",  # solc 0.5.12
-    )
+def metadata_checks(crytic_compile_instance: CryticCompile) -> None:
     assert len(crytic_compile_instance.compilation_units) == 1
     unit = list(crytic_compile_instance.compilation_units.values())[0]
 
@@ -34,3 +25,29 @@ def test_metadata() -> None:
     source_unit.remove_metadata()
     assert with_metadata != source_unit.bytecode_init("Dai")
     assert source_unit.bytecode_init("Dai") == DAI_BYTECODE
+
+
+def test_metadata() -> None:
+    """
+    Test the metadata
+
+    Returns:
+
+    """
+    crytic_compile_instance = CryticCompile(
+        "0x6B175474E89094C44Da98b954EedeAC495271d0F",  # solc 0.5.12
+    )
+
+    metadata_checks(crytic_compile_instance)
+
+
+def test_metadata_deferred() -> None:
+    crytic_compile_instance = CryticCompile(
+        "0x6B175474E89094C44Da98b954EedeAC495271d0F",  # solc 0.5.12
+        crytic_defer_compilation="true",
+    )
+    assert len(crytic_compile_instance.compilation_units) == 0
+
+    crytic_compile_instance.compile()
+
+    metadata_checks(crytic_compile_instance)