From 85335c1a29cab27577c8c447017f38b8bdd4d498 Mon Sep 17 00:00:00 2001
From: Pavlo Shchelokovskyy <shchelokovskyy@gmail.com>
Date: Wed, 1 Mar 2017 19:44:31 +0200
Subject: [PATCH] Handle upper constraints in tox

currently most jobs are broken due to installation of newer than
actually supported python-openstackclient

Change-Id: Ic6b8bddd8eaf96b2599f56a752c4b4c19415412d
---
 tools/tox_install.sh | 55 ++++++++++++++++++++++++++++++++++++++++++++
 tox.ini              |  3 ++-
 2 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100755 tools/tox_install.sh

diff --git a/tools/tox_install.sh b/tools/tox_install.sh
new file mode 100755
index 000000000..52ee1d8eb
--- /dev/null
+++ b/tools/tox_install.sh
@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+# Client constraint file contains this client version pin that is in conflict
+# with installing the client from source. We should replace the version pin in
+# the constraints file before applying it for from-source installation.
+
+ZUUL_CLONER=/usr/zuul-env/bin/zuul-cloner
+BRANCH_NAME=stable/mitaka
+CLIENT_NAME=python-ironicclient
+requirements_installed=$(echo "import openstack_requirements" | python 2>/dev/null ; echo $?)
+
+set -e
+
+CONSTRAINTS_FILE=$1
+shift
+
+install_cmd="pip install"
+mydir=$(mktemp -dt "$CLIENT_NAME-tox_install-XXXXXXX")
+trap "rm -rf $mydir" EXIT
+localfile=$mydir/upper-constraints.txt
+if [[ $CONSTRAINTS_FILE != http* ]]; then
+    CONSTRAINTS_FILE=file://$CONSTRAINTS_FILE
+fi
+curl $CONSTRAINTS_FILE -k -o $localfile
+install_cmd="$install_cmd -c$localfile"
+
+if [ $requirements_installed -eq 0 ]; then
+    echo "ALREADY INSTALLED" > /tmp/tox_install.txt
+    echo "Requirements already installed; using existing package"
+elif [ -x "$ZUUL_CLONER" ]; then
+    echo "ZUUL CLONER" > /tmp/tox_install.txt
+    pushd $mydir
+    $ZUUL_CLONER --cache-dir \
+        /opt/git \
+        --branch $BRANCH_NAME \
+        git://git.openstack.org \
+        openstack/requirements
+    cd openstack/requirements
+    $install_cmd -e .
+    popd
+else
+    echo "PIP HARDCODE" > /tmp/tox_install.txt
+    if [ -z "$REQUIREMENTS_PIP_LOCATION" ]; then
+        REQUIREMENTS_PIP_LOCATION="git+https://git.openstack.org/openstack/requirements@$BRANCH_NAME#egg=requirements"
+    fi
+    $install_cmd -U -e ${REQUIREMENTS_PIP_LOCATION}
+fi
+
+# This is the main purpose of the script: Allow local installation of
+# the current repo. It is listed in constraints file and thus any
+# install will be constrained and we need to unconstrain it.
+edit-constraints $localfile -- $CLIENT_NAME "-e file://$PWD#egg=$CLIENT_NAME"
+
+$install_cmd -U $*
+exit $?
diff --git a/tox.ini b/tox.ini
index b9610cd04..567a4f1fb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,8 @@ setenv = VIRTUAL_ENV={envdir}
          # .testr.conf uses TESTS_DIR
          TESTS_DIR=./ironicclient/tests/unit
 usedevelop = True
-install_command = pip install -U {opts} {packages}
+install_command =
+    {toxinidir}/tools/tox_install.sh {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=stable/mitaka} {opts} {packages}
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test-requirements.txt