From aca2fb563b363c0dbdaf7f0242f0d3745ec661ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Filipe=20La=C3=ADns?= <lains@archlinux.org>
Date: Thu, 27 Aug 2020 16:35:19 +0100
Subject: [PATCH] hooks: implement custom tox_runenvreport without a pip
 dependency
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This gets rid of the pip dependency, undesirable in some cases.

Signed-off-by: Filipe Laíns <lains@archlinux.org>
---
 setup.py                     |  1 +
 src/tox_current_env/hooks.py | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/setup.py b/setup.py
index 63ddc01..920f2ac 100644
--- a/setup.py
+++ b/setup.py
@@ -24,6 +24,7 @@ setup(
         # but the one downloaded from PyPI isn't and it doesn't work properly.
         "tox>=3.15; python_version >= '3.8'",
         "tox>=3.13; python_version < '3.8'",
+        "importlib_metadata; python_version < '3.8'"
     ],
     python_requires=">=3.6",
     classifiers=[
diff --git a/src/tox_current_env/hooks.py b/src/tox_current_env/hooks.py
index f04ad67..695f320 100644
--- a/src/tox_current_env/hooks.py
+++ b/src/tox_current_env/hooks.py
@@ -4,6 +4,11 @@ import subprocess
 import sys
 import tox
 
+try:
+    import importlib.metadata as importlib_metadata
+except ImportError:
+    import importlib_metadata
+
 
 @tox.hookimpl
 def tox_addoption(parser):
@@ -185,3 +190,13 @@ def tox_cleanup(session):
     for venv in session.venv_dict.values():
         if is_current_env_link(venv):
             rm_venv(venv)
+
+
+@tox.hookimpl
+def tox_runenvreport(venv, action):
+    if not venv.envconfig.config.option.current_env:
+        return None
+    return (
+        "{}=={}".format(d.metadata.get("name"), d.version)
+        for d in importlib_metadata.distributions()
+    )