linkerd2/bin/docker-build-go-deps

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#!/bin/bash
# Builds (or pulls) our go-deps docker image.
set -eu
if [ $# -ne 0 ]; then
echo "no arguments allowed for $(basename $0), given: $@" >&2
exit 64
fi
bindir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
. $bindir/_docker.sh
. $bindir/_tag.sh
tag=$(go_deps_sha)
if (docker_pull go-deps "${tag}"); then
echo "$(docker_repo go-deps):${tag}"
else
rootdir="$( cd $bindir/.. && pwd )"
docker_build go-deps "${tag}" $rootdir/Dockerfile-go-deps
fi