From 7a3a7ce876a37376fe0dca7278e41a4f46867daa Mon Sep 17 00:00:00 2001
From: Elod Illes <elod.illes@est.tech>
Date: Mon, 30 Nov 2020 18:30:02 +0100
Subject: [PATCH] Workaround for new pip 20.3 behavior

This patch caps pip version during bootstrap to avoid the issue:

"ERROR: Links are not allowed as constraints"

A proper fix would be to adapt to new pip behavior.

Depends-On: https://review.opendev.org/764811
Change-Id: I1feed4573820436f91f8f654cc189fa3a21956fd
---
 tools/cap-pip.txt    | 1 +
 tools/install_pip.sh | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 tools/cap-pip.txt

diff --git a/tools/cap-pip.txt b/tools/cap-pip.txt
new file mode 100644
index 0000000000..8ee551b261
--- /dev/null
+++ b/tools/cap-pip.txt
@@ -0,0 +1 @@
+pip<20.3
diff --git a/tools/install_pip.sh b/tools/install_pip.sh
index f3fd1e2498..9afd2e53c2 100755
--- a/tools/install_pip.sh
+++ b/tools/install_pip.sh
@@ -91,7 +91,9 @@ function install_get_pip {
             die $LINENO "Download of get-pip.py failed"
         touch $LOCAL_PIP.downloaded
     fi
-    sudo -H -E python${PYTHON3_VERSION} $LOCAL_PIP
+    # TODO: remove the trailing pip constraint when a proper fix
+    # arrives for bug https://bugs.launchpad.net/devstack/+bug/1906322
+    sudo -H -E python${PYTHON3_VERSION} $LOCAL_PIP -c $TOOLS_DIR/cap-pip.txt
 }