refactor: group functions for requirements parsing into a class (#7693)

src/poetry/console/commands/init.py

@@ -13,7 +13,7 @@ from tomlkit import inline_table
 
 from poetry.console.commands.command import Command
 from poetry.console.commands.env_command import EnvCommand
-from poetry.utils.dependency_specification import parse_dependency_specification
+from poetry.utils.dependency_specification import RequirementsParser
 
 
 if TYPE_CHECKING:
@@ -437,14 +437,10 @@ You can specify a package in the following forms:
         except (PyProjectException, RuntimeError):
             cwd = Path.cwd()
 
-        return [
-            parse_dependency_specification(
-                requirement=requirement,
-                env=self.env if isinstance(self, EnvCommand) else None,
-                cwd=cwd,
-            )
-            for requirement in requirements
-        ]
+        parser = RequirementsParser(
+            self.env if isinstance(self, EnvCommand) else None, cwd
+        )
+        return [parser.parse(requirement) for requirement in requirements]
 
     def _format_requirements(self, requirements: list[dict[str, str]]) -> Requirements:
         requires: Requirements = {}

tests/utils/test_dependency_specification.py

@@ -7,7 +7,7 @@ import pytest
 
 from deepdiff import DeepDiff
 
-from poetry.utils.dependency_specification import parse_dependency_specification
+from poetry.utils.dependency_specification import RequirementsParser
 
 
 if TYPE_CHECKING:
@@ -116,5 +116,5 @@ def test_parse_dependency_specification(
     mocker.patch("pathlib.Path.exists", _mock)
 
     assert not DeepDiff(
-        parse_dependency_specification(requirement), specification, ignore_order=True
+        RequirementsParser().parse(requirement), specification, ignore_order=True
     )