1 files changed, 32 insertions, 0 deletions
diff --git a/pavement.py b/pavement.py
new file mode 100644
index 00000000..f85617d4
--- /dev/null
+++ b/pavement.py
@@ -0,0 +1,32 @@
+import re
+
+from paver.easy import task, path as Path
+import pip
+
+
+def remove_all(paths):
+    for path in paths:
+        path.rmtree() if path.isdir() else path.remove()
+
+
+@task
+def update_vendored():
+    vendor = Path('pkg_resources/_vendor')
+    # pip uninstall doesn't support -t, so do it manually
+    remove_all(vendor.glob('packaging*'))
+    remove_all(vendor.glob('six*'))
+    remove_all(vendor.glob('pyparsing*'))
+    remove_all(vendor.glob('appdirs*'))
+    install_args = [
+        'install',
+        '-r', str(vendor / 'vendored.txt'),
+        '-t', str(vendor),
+    ]
+    pip.main(install_args)
+    packaging = vendor / 'packaging'
+    for file in packaging.glob('*.py'):
+        text = file.text()
+        text = re.sub(r' (pyparsing|six)', r' pkg_resources.extern.\1', text)
+        file.write_text(text)
+    remove_all(vendor.glob('*.dist-info'))
+    remove_all(vendor.glob('*.egg-info'))