1 files changed, 73 insertions, 0 deletions
diff --git a/tools/yarn-build.sh b/tools/yarn-build.sh
new file mode 100755
index 000000000..42eaffc7b
--- /dev/null
+++ b/tools/yarn-build.sh
@@ -0,0 +1,73 @@
+#!/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 -ex
+
+# 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