From d6dd412f40195ceffa2f521155c0c70d75d29f4e Mon Sep 17 00:00:00 2001
From: Kenneth Reitz <me@kennethreitz.org>
Date: Tue, 3 Jul 2018 12:01:35 -0400
Subject: [PATCH] clear the caches

---
 pipenv/cli.py  | 13 +++++++++++--
 pipenv/core.py | 18 ++++++++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/pipenv/cli.py b/pipenv/cli.py
index 86eb9866..e3134714 100644
--- a/pipenv/cli.py
+++ b/pipenv/cli.py
@@ -136,6 +136,7 @@ def validate_pypi_mirror(ctx, param, value):
     is_flag=True,
     help="Output diagnostic information for use in Github issues.",
 )
+@option("--clear", is_flag=True, help="Clears caches (pipenv, pip, and pip-tools).")
 @version_option(prog_name=crayons.normal("pipenv", bold=True), version=__version__)
 @pass_context
 def cli(
@@ -154,6 +155,7 @@ def cli(
     completion=False,
     pypi_mirror=None,
     support=None,
+    clear=False,
 ):
     if completion:  # Handle this ASAP to make shell startup fast.
         from . import shells
@@ -180,6 +182,7 @@ def cli(
         cleanup_virtualenv,
         ensure_project,
         format_help,
+        do_clear,
     )
 
     if man:
@@ -203,19 +206,24 @@ def cli(
         sys.exit(0)
     warn_in_virtualenv()
     if ctx.invoked_subcommand is None:
-        # --where was passed...
+        # --where was passed…
         if where:
             do_where(bare=True)
             sys.exit(0)
         elif py:
             do_py()
             sys.exit()
-        # --support was passed...
+        # --support was passed…
         elif support:
             from .help import get_pipenv_diagnostics
 
             get_pipenv_diagnostics()
             sys.exit(0)
+        # --clear was passed…
+        elif clear:
+            do_clear()
+            sys.exit(0)
+
         # --venv was passed...
         elif venv:
             # There is no virtualenv yet.
@@ -270,6 +278,7 @@ def cli(
             warn=True,
             site_packages=site_packages,
             pypi_mirror=pypi_mirror,
+            clear=clear,
         )
     # Check this again before exiting for empty ``pipenv`` command.
     elif ctx.invoked_subcommand is None:
diff --git a/pipenv/core.py b/pipenv/core.py
index 3838c7f8..6c943b91 100644
--- a/pipenv/core.py
+++ b/pipenv/core.py
@@ -122,6 +122,18 @@ def which(command, location=None, allow_global=False):
 project = Project(which=which)
 
 
+def do_clear():
+    click.echo(crayons.white("Clearing caches…", bold=True))
+    import pip._internal.locations
+    import piptools
+
+    try:
+        shutil.rmtree(PIPENV_CACHE_DIR)
+        shutil.rmtree(pip._internal.locations.USER_CACHE_DIR)
+    except FileNotFoundError:
+        pass
+
+
 def load_dot_env():
     """Loads .env file into sys.environ."""
     if not PIPENV_DONT_LOAD_ENV:
@@ -582,10 +594,16 @@ def ensure_project(
     deploy=False,
     skip_requirements=False,
     pypi_mirror=None,
+    clear=False,
 ):
     """Ensures both Pipfile and virtualenv exist for the project."""
     from .environments import PIPENV_USE_SYSTEM
 
+    # Clear the caches, if appropriate.
+    if clear:
+        print("clearing")
+        sys.exit(1)
+
     # Automatically use an activated virtualenv.
     if PIPENV_USE_SYSTEM:
         system = True