From 929acc4e551448a68411968fb50336ad51ed4d3c Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Sat, 17 Mar 2018 14:10:32 -0400
Subject: Setuptools now vendors its own direct dependencies (packaging, six,
 pyparsing). Ref #1296.

---
 pavement.py | 49 ++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 44 insertions(+), 5 deletions(-)

(limited to 'pavement.py')

diff --git a/pavement.py b/pavement.py
index f85617d4..ca54e61f 100644
--- a/pavement.py
+++ b/pavement.py
@@ -11,6 +11,32 @@ def remove_all(paths):
 
 @task
 def update_vendored():
+    update_pkg_resources()
+    update_setuptools()
+
+
+def rewrite_packaging(pkg_files, new_root):
+    """
+    Rewrite imports in packaging to redirect to vendored copies.
+    """
+    for file in pkg_files.glob('*.py'):
+        text = file.text()
+        text = re.sub(r' (pyparsing|six)', rf' {new_root}.\1', text)
+        file.write_text(text)
+
+
+def install(vendor):
+    clean(vendor)
+    install_args = [
+        'install',
+        '-r', str(vendor / 'vendored.txt'),
+        '-t', str(vendor),
+    ]
+    pip.main(install_args)
+    remove_all(vendor.glob('*.dist-info'))
+    remove_all(vendor.glob('*.egg-info'))
+
+def update_pkg_resources():
     vendor = Path('pkg_resources/_vendor')
     # pip uninstall doesn't support -t, so do it manually
     remove_all(vendor.glob('packaging*'))
@@ -23,10 +49,23 @@ def update_vendored():
         '-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)
+    rewrite_packaging(vendor / 'packaging', 'pkg_resources.extern.')
+    remove_all(vendor.glob('*.dist-info'))
+    remove_all(vendor.glob('*.egg-info'))
+
+
+def update_setuptools():
+    vendor = Path('setuptools/_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*'))
+    install_args = [
+        'install',
+        '-r', str(vendor / 'vendored.txt'),
+        '-t', str(vendor),
+    ]
+    pip.main(install_args)
+    rewrite_packaging(vendor / 'packaging', 'setuptools.extern')
     remove_all(vendor.glob('*.dist-info'))
     remove_all(vendor.glob('*.egg-info'))
-- 
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