init

.venv/lib/python3.8/site-packages/virtualenv/run/session.py

@@ -0,0 +1,91 @@
+from __future__ import absolute_import, unicode_literals
+
+import json
+import logging
+
+from virtualenv.util.six import ensure_text
+
+
+class Session(object):
+    """Represents a virtual environment creation session"""
+
+    def __init__(self, verbosity, app_data, interpreter, creator, seeder, activators):
+        self._verbosity = verbosity
+        self._app_data = app_data
+        self._interpreter = interpreter
+        self._creator = creator
+        self._seeder = seeder
+        self._activators = activators
+
+    @property
+    def verbosity(self):
+        """The verbosity of the run"""
+        return self._verbosity
+
+    @property
+    def interpreter(self):
+        """Create a virtual environment based on this reference interpreter"""
+        return self._interpreter
+
+    @property
+    def creator(self):
+        """The creator used to build the virtual environment (must be compatible with the interpreter)"""
+        return self._creator
+
+    @property
+    def seeder(self):
+        """The mechanism used to provide the seed packages (pip, setuptools, wheel)"""
+        return self._seeder
+
+    @property
+    def activators(self):
+        """Activators used to generate activations scripts"""
+        return self._activators
+
+    def run(self):
+        self._create()
+        self._seed()
+        self._activate()
+        self.creator.pyenv_cfg.write()
+
+    def _create(self):
+        logging.info("create virtual environment via %s", ensure_text(str(self.creator)))
+        self.creator.run()
+        logging.debug(_DEBUG_MARKER)
+        logging.debug("%s", _Debug(self.creator))
+
+    def _seed(self):
+        if self.seeder is not None and self.seeder.enabled:
+            logging.info("add seed packages via %s", self.seeder)
+            self.seeder.run(self.creator)
+
+    def _activate(self):
+        if self.activators:
+            logging.info(
+                "add activators for %s",
+                ", ".join(type(i).__name__.replace("Activator", "") for i in self.activators),
+            )
+            for activator in self.activators:
+                activator.generate(self.creator)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self._app_data.close()
+
+
+_DEBUG_MARKER = "=" * 30 + " target debug " + "=" * 30
+
+
+class _Debug(object):
+    """lazily populate debug"""
+
+    def __init__(self, creator):
+        self.creator = creator
+
+    def __unicode__(self):
+        return ensure_text(repr(self))
+
+    def __repr__(self):
+        return json.dumps(self.creator.debug, indent=2)