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executable file
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#!/usr/bin/env bash
set -o errexit -o nounset -o pipefail
ROOT=$( cd "${BASH_SOURCE[0]%/*}"/.. && pwd )
DEV_PORT=8080
export NODE_ENV=${NODE_ENV:=development}
function -h {
cat <<USAGE
USAGE: web <command>
* build - build the assets
* dev - run a dev server (with live reloading). Options:
-p $DEV_PORT
* port-forward - setup a tunnel to a controller component and port
Example: port-forward linkerd controller 8085
* run - run a local server (sans. reloading)
* setup - get the environment setup for development
Note: any command line options are passed on to yarn
* test - run the unit tests
Note: any command line options are passed on to the test runner (jest)
USAGE
}; function --help { '-h' ;}
check-for-linkerd-and-viz() {
metrics_api_pod=$(get-pod linkerd-viz metrics-api)
if [[ -z "${metrics_api_pod// }" ]]; then
err 'Metrics-api is not running. Have you installed Linkerd-Viz?'
exit 1
fi
}
dev() {
while getopts 'p:' opt; do
case "$opt" in
p) DEV_PORT=$OPTARG;;
*) ;;
esac
done
cd "$ROOT"/web/app && yarn webpack serve --port "$DEV_PORT" &
run ''
}
build() {
cd "$ROOT"/web/app
yarn lingui compile && yarn webpack
}
get-pod() {
if [ $# -ne 2 ]; then
echo "usage: bin/${0##*/} get-pod namespace component-name" >&2
exit 1
fi
selector="linkerd.io/control-plane-component=$2"
if [ "$1" = 'linkerd-viz' ]; then
selector="component=$2"
fi
kubectl --namespace="$1" get po \
--selector="$selector" \
--field-selector='status.phase==Running' \
-o jsonpath='{.items[*].metadata.name}'
}
port-forward() {
if [ $# -lt 3 ]; then
echo "usage: bin/${0##*/} port-forward namespace component-name local port-number [remote port-number]" >&2
exit 1
fi
port_from=''
port_to=''
if [ $# -eq 4 ]; then
port_from=$3
port_to=$4
else
port_from=$3
port_to=$3
fi
nc -z localhost "$3" || \
kubectl --namespace="$1" port-forward "$(get-pod "$1" "$2")" "$port_from:$port_to"
}
run() {
# Stop everything in the process group (in the background) whenever the
# parent process experiences an error and exits.
trap 'exit' INT TERM
trap 'kill 0' EXIT
build
check-for-linkerd-and-viz && (
port-forward linkerd-viz metrics-api 8085 &
)
cd "$ROOT"/web && \
../bin/go-run . --addr=:7777 "$@"
}
setup() {
cd "$ROOT"/web/app
yarn "$@"
}
function test {
cd "$ROOT"/web/app
yarn jest "$@"
}
main() {
setup ''
build
}
msg() { out "$*" >&2 ;}
err() { local x=$? ; msg "$*" ; return $(( x == 0 ? 1 : x )) ;}
out() { printf '%s\n' "$*" ;}
if [[ ${1:-} ]] && declare -F | cut -d' ' -f3 | grep -Fqx -- "${1:-}"
then "$@"
else main "$@"
fi