Reorganize hooks into dedicated submodule

Fixes #93

tox_poetry_installer/hooks/__init__.py

@@ -0,0 +1,4 @@
+# pylint: disable=missing-module-docstring
+from tox_poetry_installer.hooks.tox_add_env_config import tox_add_env_config
+from tox_poetry_installer.hooks.tox_add_option import tox_add_option
+from tox_poetry_installer.hooks.tox_on_install import tox_on_install

tox_poetry_installer/hooks/tox_add_env_config.py

@@ -0,0 +1,43 @@
+"""Add required env configuration options to the tox INI file"""
+from typing import List
+
+from tox.config.sets import EnvConfigSet
+from tox.plugin import impl
+
+
+@impl
+def tox_add_env_config(env_conf: EnvConfigSet):
+    env_conf.add_config(
+        "poetry_dep_groups",
+        of_type=List[str],
+        default=[],
+        desc="List of Poetry dependency groups to install to the environment",
+    )
+
+    env_conf.add_config(
+        "install_project_deps",
+        of_type=bool,
+        default=True,
+        desc="Automatically install all Poetry primary dependencies to the environment",
+    )
+
+    env_conf.add_config(
+        "require_locked_deps",
+        of_type=bool,
+        default=False,
+        desc="Require all dependencies in the environment be installed using the Poetry lockfile",
+    )
+
+    env_conf.add_config(
+        "require_poetry",
+        of_type=bool,
+        default=False,
+        desc="Trigger a failure if Poetry is not available to Tox",
+    )
+
+    env_conf.add_config(
+        "locked_deps",
+        of_type=List[str],
+        default=[],
+        desc="List of locked dependencies to install to the environment using the Poetry lockfile",
+    )

tox_poetry_installer/hooks/tox_add_option.py

@@ -0,0 +1,16 @@
+"""Add additional command line arguments to tox to configure plugin behavior"""
+from tox.config.cli.parser import ToxParser
+from tox.plugin import impl
+
+from tox_poetry_installer import constants
+
+
+@impl
+def tox_add_option(parser: ToxParser):
+    parser.add_argument(
+        "--parallel-install-threads",
+        type=int,
+        dest="parallel_install_threads",
+        default=constants.DEFAULT_INSTALL_THREADS,
+        help="Number of locked dependencies to install simultaneously; set to 0 to disable parallel installation",
+    )

tox_poetry_installer/hooks/tox_on_install.py

@@ -1,88 +1,24 @@
-"""Main hook definition module
+"""Install the dependencies for the current environment
 
-All implementations of tox hooks are defined here, as well as any single-use helper functions
-specifically related to implementing the hooks (to keep the size/readability of the hook functions
-themselves manageable).
+Loads the local Poetry environment and the corresponding lockfile then pulls the dependencies
+specified by the Tox environment. Finally these dependencies are installed into the Tox
+environment using the Poetry ``PipInstaller`` backend.
 """
 from itertools import chain
-from typing import List
 
-from tox.config.cli.parser import ToxParser
-from tox.config.sets import EnvConfigSet
 from tox.plugin import impl
 from tox.tox_env.api import ToxEnv as ToxVirtualEnv
 
-from tox_poetry_installer import constants
 from tox_poetry_installer import exceptions
 from tox_poetry_installer import installer
 from tox_poetry_installer import logger
 from tox_poetry_installer import utilities
 
 
-@impl
-def tox_add_option(parser: ToxParser):
-    """Add additional command line arguments to tox to configure plugin behavior"""
-    parser.add_argument(
-        "--parallel-install-threads",
-        type=int,
-        dest="parallel_install_threads",
-        default=constants.DEFAULT_INSTALL_THREADS,
-        help="Number of locked dependencies to install simultaneously; set to 0 to disable parallel installation",
-    )
-
-
-@impl
-def tox_add_env_config(env_conf: EnvConfigSet):
-    """Add required env configuration options to the tox INI file"""
-    env_conf.add_config(
-        "poetry_dep_groups",
-        of_type=List[str],
-        default=[],
-        desc="List of Poetry dependency groups to install to the environment",
-    )
-
-    env_conf.add_config(
-        "install_project_deps",
-        of_type=bool,
-        default=True,
-        desc="Automatically install all Poetry primary dependencies to the environment",
-    )
-
-    env_conf.add_config(
-        "require_locked_deps",
-        of_type=bool,
-        default=False,
-        desc="Require all dependencies in the environment be installed using the Poetry lockfile",
-    )
-
-    env_conf.add_config(
-        "require_poetry",
-        of_type=bool,
-        default=False,
-        desc="Trigger a failure if Poetry is not available to Tox",
-    )
-
-    env_conf.add_config(
-        "locked_deps",
-        of_type=List[str],
-        default=[],
-        desc="List of locked dependencies to install to the environment using the Poetry lockfile",
-    )
-
-
 @impl
 def tox_on_install(
     tox_env: ToxVirtualEnv, section: str  # pylint: disable=unused-argument
 ) -> None:
-    """Install the dependencies for the current environment
-
-    Loads the local Poetry environment and the corresponding lockfile then pulls the dependencies
-    specified by the Tox environment. Finally these dependencies are installed into the Tox
-    environment using the Poetry ``PipInstaller`` backend.
-
-    :param venv: Tox virtual environment object with configuration for the local Tox environment.
-    :param action: Tox action object
-    """
     try:
         poetry = utilities.check_preconditions(tox_env)
     except exceptions.SkipEnvironment as err: