Merge pull request #1564 from danhper/avoid-removing-dependencies

Avoid removing dependencies from the build

CHANGELOG.md

@@ -9,9 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - Handle version bytecode for Vyper `>=0.3.4` ([#1578](https://github.com/eth-brownie/brownie/pull/1578))
 - Handle Vyper `>=0.3.4` coverage data generation breaking project compilation ([#1586](https://github.com/eth-brownie/brownie/pull/1586))
-
-### Fixed
 - Handle null value of `to` field in transaction receipt so that contract deploying with Anvil works properly ([#1573](https://github.com/eth-brownie/brownie/pull/1573))
+- Avoid removing dependencies from the build ([#1564](https://github.com/eth-brownie/brownie/pull/1564))
 
 ## [1.19.0](https://github.com/eth-brownie/brownie/tree/v1.19.0) - 2022-05-29
 ### Added

brownie/project/main.py

@@ -201,15 +201,19 @@ def load(self, raise_if_loaded: bool = True) -> None:
         self._build = Build(self._sources)
 
         contract_list = self._sources.get_contract_list()
+        potential_dependencies = []
         for path in list(self._build_path.glob("contracts/*.json")):
             try:
                 with path.open() as fp:
                     build_json = json.load(fp)
             except json.JSONDecodeError:
                 build_json = {}
-            if not set(BUILD_KEYS).issubset(build_json) or path.stem not in contract_list:
+            if not set(BUILD_KEYS).issubset(build_json):
                 path.unlink()
                 continue
+            if path.stem not in contract_list:
+                potential_dependencies.append((path, build_json))
+                continue
             if isinstance(build_json["allSourcePaths"], list):
                 # this handles the format change in v1.7.0, it can be removed in a future release
                 path.unlink()
@@ -222,6 +226,14 @@ def load(self, raise_if_loaded: bool = True) -> None:
                 continue
             self._build._add_contract(build_json)
 
+        for path, build_json in potential_dependencies:
+            dependents = self._build.get_dependents(path.stem)
+            is_dependency = len(set(dependents) & set(contract_list)) > 0
+            if is_dependency:
+                self._build._add_contract(build_json)
+            else:
+                path.unlink()
+
         interface_hashes = {}
         interface_list = self._sources.get_interface_list()
         for path in list(self._build_path.glob("interfaces/*.json")):