@@ -30,8 +30,6 @@ REQUIREMENTS_DIR=$DEST/requirements

 # install_infra() - Collect source and prepare

 function install_infra {

     local PIP_VIRTUAL_ENV="$REQUIREMENTS_DIR/.venv"

-    # bring down global requirements

-    git_clone $REQUIREMENTS_REPO $REQUIREMENTS_DIR $REQUIREMENTS_BRANCH

     [ ! -d $PIP_VIRTUAL_ENV ] && virtualenv $PIP_VIRTUAL_ENV

     # We don't care about testing git pbr in the requirements venv.

     PIP_VIRTUAL_ENV=$PIP_VIRTUAL_ENV pip_install -U pbr

@@ -698,6 +698,11 @@ fi

 TRACK_DEPENDS=${TRACK_DEPENDS:-False}

+# Bring down global requirements before any use of pip_install. This is

+# necessary to ensure that the constraints file is in place before we

+# attempt to apply any constraints to pip installs.

+git_clone $REQUIREMENTS_REPO $REQUIREMENTS_DIR $REQUIREMENTS_BRANCH

+

 # Install Python packages into a virtualenv so that we can track them

 if [[ $TRACK_DEPENDS = True ]]; then

     echo_summary "Installing Python packages into a virtualenv $DEST/.venv"