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#!/usr/bin/env bash
# Copyright 2015 Google Inc. All rights reserved.
#
# 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
GO_FLAGS=${GO_FLAGS:-"-tags netgo"} # Extra go flags to use in the build.
BUILD_USER=${BUILD_USER:-"${USER}@${HOSTNAME}"}
BUILD_DATE=${BUILD_DATE:-$( date +%Y%m%d-%H:%M:%S )}
VERBOSE=${VERBOSE:-}
GOARCH=$1
repo_path="github.com/google/cadvisor"
version=$( git describe --tags --dirty --abbrev=14 | sed -E 's/-([0-9]+)-g/.\1+/' )
revision=$( git rev-parse --short HEAD 2> /dev/null || echo 'unknown' )
branch=$( git rev-parse --abbrev-ref HEAD 2> /dev/null || echo 'unknown' )
go_version=$( go version | sed -e 's/^[^0-9.]*\([0-9.]*\).*/\1/' )
# go 1.4 requires ldflags format to be "-X key value", not "-X key=value"
ldseparator="="
if [ "${go_version:0:3}" = "1.4" ]; then
ldseparator=" "
fi
ldflags="
-X ${repo_path}/version.Version${ldseparator}${version}
-X ${repo_path}/version.Revision${ldseparator}${revision}
-X ${repo_path}/version.Branch${ldseparator}${branch}
-X ${repo_path}/version.BuildUser${ldseparator}${BUILD_USER}
-X ${repo_path}/version.BuildDate${ldseparator}${BUILD_DATE}
-X ${repo_path}/version.GoVersion${ldseparator}${go_version}"
echo ">> building cadvisor"
if [ -n "$VERBOSE" ]; then
echo "Building with -ldflags $ldflags"
fi
# Since github.com/google/cadvisor/cmd is a submodule, we must build from inside that directory
output_file="$PWD/cadvisor"
pushd cmd > /dev/null
if [ -z "$GOARCH" ]
then
go build ${GO_FLAGS} -ldflags "${ldflags}" -o "${output_file}" "${repo_path}/cmd"
else
env GOOS=linux GOARCH=$GOARCH go build ${GO_FLAGS} -ldflags "${ldflags}" -o "${output_file}" "${repo_path}/cmd"
fi
popd > /dev/null
exit 0
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