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#!/bin/bash
# Copyright 2018 Red Hat, Inc.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -e

# This script checks if yarn is installed in the current path. If it is not,
# it will use nodeenv to install node, npm and yarn.
# Finally, it will install pip things.
if [[ ! $(command -v yarn) ]]
then
    pip install nodeenv
    # Initialize nodeenv and tell it to re-use the currently active virtualenv
    attempts=0
    set +e
    until nodeenv --python-virtualenv -n 16.14.0 ; do
        ((attempts++))
        if [[ $attempts > 2 ]]
        then
            echo "Failed creating nodeenv"
            exit 1
        fi
    done
    set -e
    # Use -g because inside of the virtualenv '-g' means 'install into the'
    # virtualenv - as opposed to installing into the local node_modules.
    # Avoid writing a package-lock.json file since we don't use it.
    # Avoid writing yarn into package.json.
    npm install -g --no-package-lock --no-save yarn
fi
if [[ ! -f zuul/web/static/index.html ]]
then
    mkdir -p zuul/web/static
    ln -sfn ../zuul/web/static web/build
    pushd web/
        if [[ -n "${YARN_REGISTRY}" ]]
        then
            echo "Using yarn registry: ${YARN_REGISTRY}"
            sed -i "s#https://registry.yarnpkg.com#${YARN_REGISTRY}#" yarn.lock
        fi

        # Be forgiving of package retrieval errors
        attempts=0
        set +e
        until yarn install; do
            ((attempts++))
            if [[ $attempts > 2 ]]
            then
                echo "Failed installing npm packages"
                exit 1
            fi
        done
        set -e

        yarn build
        if [[ -n "${YARN_REGISTRY}" ]]
        then
            echo "Resetting yarn registry"
            sed -i "s#${YARN_REGISTRY}#https://registry.yarnpkg.com#" yarn.lock
        fi
    popd
fi
pip install $*

# Fail-fast if pip detects conflicts
pip check

# Check if we're installing zuul. If so install the managed ansible as well.
if echo "$*" | grep -vq requirements.txt; then
    zuul-manage-ansible -v
fi