feat!: upgrade to 0.8

.github/workflows/test.yaml

@@ -65,7 +65,7 @@ jobs:
                 # TODO: Replace with macos-latest when works again.
                 #   https://github.com/actions/setup-python/issues/808
                 os: [ubuntu-latest, macos-12]   # eventually add `windows-latest`
-                python-version: [3.8, 3.9, '3.10', '3.11', '3.12']
+                python-version: [3.9, '3.10', '3.11', '3.12']
 
         env:
           GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.pre-commit-config.yaml

@@ -30,7 +30,7 @@ repos:
     rev: 0.7.17
     hooks:
     -   id: mdformat
-        additional_dependencies: [mdformat-gfm, mdformat-frontmatter]
+        additional_dependencies: [mdformat-gfm, mdformat-frontmatter, mdformat-pyproject]
 
 
 default_language_version:

README.md

@@ -4,7 +4,7 @@ Compile Solidity contracts.
 
 ## Dependencies
 
-- [python3](https://www.python.org/downloads) version 3.8 up to 3.12.
+- [python3](https://www.python.org/downloads) version 3.9 up to 3.12.
 
 ## Installation
 
@@ -62,32 +62,32 @@ solidity:
 
 ### Dependency Mapping
 
-To configure import remapping, use your project's `ape-config.yaml` file:
-
-```yaml
-solidity:
-  import_remapping:
-    - "@openzeppelin=path/to/open_zeppelin/contracts"
-```
-
-If you are using the `dependencies:` key in your `ape-config.yaml`, `ape` can automatically
-search those dependencies for the path.
+By default, `ape-solidity` knows to look at installed dependencies for potential remapping-values and will use those when it notices you are importing them.
+For example, if you are using dependencies like:
 
 ```yaml
 dependencies:
-  - name: OpenZeppelin
+  - name: openzeppelin
     github: OpenZeppelin/openzeppelin-contracts
     version: 4.4.2
-
-solidity:
-  import_remapping:
-    - "@openzeppelin=OpenZeppelin/4.4.2"
 ```
 
-Once you have your dependencies configured, you can import packages using your import keys:
+And your source files import from `openzeppelin` this way:
 
 ```solidity
-import "@openzeppelin/token/ERC721/ERC721.sol";
+import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
+```
+
+Ape knows how to resolve the `@openzeppelin` value and find the correct source.
+
+If you want to override this behavior or add new remappings that are not dependencies, you can add them to your `ape-config.yaml` under the `solidity:` key.
+For example, let's say you have downloaded `openzeppelin` somewhere and do not have it installed in Ape.
+You can map to your local install of `openzeppelin` this way:
+
+```yaml
+solidity:
+  import_remapping:
+    - "@openzeppelin=path/to/openzeppelin"
 ```
 
 ### Library Linking

ape_solidity/__init__.py

@@ -1,6 +1,7 @@
 from ape import plugins
 
-from .compiler import Extension, SolidityCompiler, SolidityConfig
+from ._utils import Extension
+from .compiler import SolidityCompiler, SolidityConfig
 
 
 @plugins.register(plugins.Config)

ape_solidity/_utils.py

@@ -1,22 +1,17 @@
 import json
-import os
 import re
+from collections.abc import Iterable
 from enum import Enum
 from pathlib import Path
-from typing import Dict, List, Optional, Sequence, Set, Union
+from typing import Optional, Union
 
 from ape.exceptions import CompilerError
 from ape.utils import pragma_str_to_specifier_set
 from packaging.specifiers import SpecifierSet
-from packaging.version import InvalidVersion
 from packaging.version import Version
-from packaging.version import Version as _Version
-from pydantic import BaseModel, field_validator
 from solcx.install import get_executable
 from solcx.wrapper import get_solc_version as get_solc_version_from_binary
 
-from ape_solidity.exceptions import IncorrectMappingFormatError
-
 OUTPUT_SELECTION = [
     "abi",
     "bin-runtime",
@@ -32,87 +27,11 @@ class Extension(Enum):
     SOL = ".sol"
 
 
-class ImportRemapping(BaseModel):
-    entry: str
-    packages_cache: Path
-
-    @field_validator("entry", mode="before")
-    @classmethod
-    def validate_entry(cls, value):
-        if len((value or "").split("=")) != 2:
-            raise IncorrectMappingFormatError()
-
-        return value
-
-    @property
-    def _parts(self) -> List[str]:
-        return self.entry.split("=")
-
-    # path normalization needed in case delimiter in remapping key/value
-    # and system path delimiter are different (Windows as an example)
-    @property
-    def key(self) -> str:
-        return os.path.normpath(self._parts[0])
-
-    @property
-    def name(self) -> str:
-        suffix_str = os.path.normpath(self._parts[1])
-        return suffix_str.split(os.path.sep)[0]
-
-    @property
-    def package_id(self) -> Path:
-        suffix = Path(self._parts[1])
-        data_folder_cache = self.packages_cache / suffix
-
-        try:
-            _Version(suffix.name)
-            if not suffix.name.startswith("v"):
-                suffix = suffix.parent / f"v{suffix.name}"
-
-        except InvalidVersion:
-            # The user did not specify a version_id suffix in their mapping.
-            # We try to smartly figure one out, else error.
-            if len(Path(suffix).parents) == 1 and data_folder_cache.is_dir():
-                version_ids = [d.name for d in data_folder_cache.iterdir()]
-                if len(version_ids) == 1:
-                    # Use only version ID available.
-                    suffix = suffix / version_ids[0]
-
-                elif not version_ids:
-                    raise CompilerError(f"Missing dependency '{suffix}'.")
-
-                else:
-                    options_str = ", ".join(version_ids)
-                    raise CompilerError(
-                        "Ambiguous version reference. "
-                        f"Please set import remapping value to {suffix}/{{version_id}} "
-                        f"where 'version_id' is one of '{options_str}'."
-                    )
-
-        return suffix
-
-
-class ImportRemappingBuilder:
-    def __init__(self, contracts_cache: Path):
-        # import_map maps import keys like `@openzeppelin/contracts`
-        # to str paths in the compiler cache folder.
-        self.import_map: Dict[str, str] = {}
-        self.dependencies_added: Set[Path] = set()
-        self.contracts_cache = contracts_cache
-
-    def add_entry(self, remapping: ImportRemapping):
-        path = remapping.package_id
-        if self.contracts_cache not in path.parents:
-            path = self.contracts_cache / path
-
-        self.import_map[remapping.key] = str(path)
-
-
-def get_import_lines(source_paths: Set[Path]) -> Dict[Path, List[str]]:
-    imports_dict: Dict[Path, List[str]] = {}
+def get_import_lines(source_paths: Iterable[Path]) -> dict[Path, list[str]]:
+    imports_dict: dict[Path, list[str]] = {}
     for filepath in source_paths:
         import_set = set()
-        if not filepath.is_file():
+        if not filepath or not filepath.is_file():
             continue
 
         source_lines = filepath.read_text().splitlines()
@@ -168,7 +87,7 @@ def get_pragma_spec_from_str(source_str: str) -> Optional[SpecifierSet]:
     return pragma_str_to_specifier_set(pragma_match.groups()[0])
 
 
-def load_dict(data: Union[str, dict]) -> Dict:
+def load_dict(data: Union[str, dict]) -> dict:
     return data if isinstance(data, dict) else json.loads(data)
 
 
@@ -183,17 +102,12 @@ def add_commit_hash(version: Union[str, Version]) -> Version:
     return get_solc_version_from_binary(solc, with_commit_hash=True)
 
 
-def verify_contract_filepaths(contract_filepaths: Sequence[Path]) -> Set[Path]:
-    invalid_files = [p.name for p in contract_filepaths if p.suffix != Extension.SOL.value]
-    if not invalid_files:
-        return set(contract_filepaths)
-
-    sources_str = "', '".join(invalid_files)
-    raise CompilerError(f"Unable to compile '{sources_str}' using Solidity compiler.")
+def get_versions_can_use(pragma_spec: SpecifierSet, options: Iterable[Version]) -> list[Version]:
+    return sorted(list(pragma_spec.filter(options)), reverse=True)
 
 
-def select_version(pragma_spec: SpecifierSet, options: Sequence[Version]) -> Optional[Version]:
-    choices = sorted(list(pragma_spec.filter(options)), reverse=True)
+def select_version(pragma_spec: SpecifierSet, options: Iterable[Version]) -> Optional[Version]:
+    choices = get_versions_can_use(pragma_spec, options)
     return choices[0] if choices else None