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#!/usr/bin/env bash
set -e
# This script builds various binary artifacts from a checkout of the docker
# source code.
#
# Requirements:
# - The current directory should be a checkout of the docker source code
# (https://github.com/docker/docker). Whatever version is checked out
# will be built.
# - The VERSION file, at the root of the repository, should exist, and
# will be used as Docker binary version and package version.
# - The hash of the git commit will also be included in the Docker binary,
# with the suffix -unsupported if the repository isn't clean.
# - The script is intended to be run inside the docker container specified
# in the Dockerfile at the root of the source. In other words:
# DO NOT CALL THIS SCRIPT DIRECTLY.
# - The right way to call this script is to invoke "make" from
# your checkout of the Docker repository.
# the Makefile will do a "docker build -t docker ." and then
# "docker run hack/make.sh" in the resulting image.
#
set -o pipefail
export DOCKER_PKG='github.com/docker/docker'
export SCRIPTDIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
export MAKEDIR="$SCRIPTDIR/make"
export PKG_CONFIG=${PKG_CONFIG:-pkg-config}
echo
# List of bundles to create when no argument is passed
DEFAULT_BUNDLES=(
binary-daemon
dynbinary
test-integration
test-docker-py
)
VERSION=${VERSION:-dev}
if [[ $VERSION == refs/tags/* ]]; then
VERSION=${VERSION#refs/tags/}
elif [[ $VERSION == refs/heads/* ]]; then
VERSION=$(sed <<< "${VERSION#refs/heads/}" -r 's#/+#-#g')
elif [[ $VERSION == refs/pull/* ]]; then
VERSION=pr-$(grep <<< "$VERSION" -o '[0-9]\+')
fi
! BUILDTIME=$(date -u -d "@${SOURCE_DATE_EPOCH:-$(date +%s)}" --rfc-3339 ns 2> /dev/null | sed -e 's/ /T/')
if [ "$DOCKER_GITCOMMIT" ]; then
GITCOMMIT="$DOCKER_GITCOMMIT"
elif command -v git &> /dev/null && [ -e .git ] && git rev-parse &> /dev/null; then
GITCOMMIT=$(git rev-parse --short HEAD)
if [ -n "$(git status --porcelain --untracked-files=no)" ]; then
GITCOMMIT="$GITCOMMIT-unsupported"
echo "#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
echo "# GITCOMMIT = $GITCOMMIT"
echo "# The version you are building is listed as unsupported because"
echo "# there are some files in the git repository that are in an uncommitted state."
echo "# Commit these changes, or add to .gitignore to remove the -unsupported from the version."
echo "# Here is the current list:"
git status --porcelain --untracked-files=no
echo "#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
fi
else
echo >&2 'error: .git directory missing and DOCKER_GITCOMMIT not specified'
echo >&2 ' Please either build with the .git directory accessible, or specify the'
echo >&2 ' exact (--short) commit hash you are building using DOCKER_GITCOMMIT for'
echo >&2 ' future accountability in diagnosing build issues. Thanks!'
exit 1
fi
if [ "$AUTO_GOPATH" ]; then
rm -rf .gopath
mkdir -p .gopath/src/"$(dirname "${DOCKER_PKG}")"
ln -sf ../../../.. .gopath/src/"${DOCKER_PKG}"
export GOPATH="${PWD}/.gopath"
fi
if [ ! "$GOPATH" ]; then
echo >&2 'error: missing GOPATH; please see https://golang.org/doc/code.html#GOPATH'
echo >&2 ' alternatively, set AUTO_GOPATH=1'
exit 1
fi
# Adds $1_$2 to DOCKER_BUILDTAGS unless it already
# contains a word starting from $1_
add_buildtag() {
[[ " $DOCKER_BUILDTAGS" == *" $1_"* ]] || DOCKER_BUILDTAGS+=" $1_$2"
}
if ${PKG_CONFIG} 'libsystemd' 2> /dev/null; then
DOCKER_BUILDTAGS+=" journald"
fi
# test whether "libdevmapper.h" is new enough to support deferred remove
# functionality. We favour libdm_dlsym_deferred_remove over
# libdm_no_deferred_remove in dynamic cases because the binary could be shipped
# with a newer libdevmapper than the one it was built with.
if command -v gcc &> /dev/null && ! (echo -e '#include <libdevmapper.h>\nint main() { dm_task_deferred_remove(NULL); }' | gcc -xc - -o /dev/null $(${PKG_CONFIG} --libs devmapper 2> /dev/null) &> /dev/null); then
add_buildtag libdm dlsym_deferred_remove
fi
# Use these flags when compiling the tests and final binary
if [ -z "$DOCKER_DEBUG" ]; then
LDFLAGS='-w'
fi
LDFLAGS_STATIC=''
EXTLDFLAGS_STATIC='-static'
BUILDFLAGS=(${BUILDFLAGS} -tags "netgo osusergo static_build $DOCKER_BUILDTAGS")
LDFLAGS_STATIC_DOCKER="
$LDFLAGS_STATIC
-extldflags \"$EXTLDFLAGS_STATIC\"
"
if [ "$(uname -s)" = 'FreeBSD' ]; then
# Tell cgo the compiler is Clang, not GCC
# https://code.google.com/p/go/source/browse/src/cmd/cgo/gcc.go?spec=svne77e74371f2340ee08622ce602e9f7b15f29d8d3&r=e6794866ebeba2bf8818b9261b54e2eef1c9e588#752
export CC=clang
# "-extld clang" is a workaround for
# https://code.google.com/p/go/issues/detail?id=6845
LDFLAGS="$LDFLAGS -extld clang"
fi
bundle() {
local bundle="$1"
shift
echo "---> Making bundle: $(basename "$bundle") (in $DEST)"
source "$SCRIPTDIR/make/$bundle" "$@"
}
main() {
bundle_dir="bundles"
if [ -n "${PREFIX}" ]; then
bundle_dir="${PREFIX}/${bundle_dir}"
fi
if [ -z "${KEEPBUNDLE-}" ]; then
echo "Removing ${bundle_dir}/"
rm -rf "${bundle_dir}"/*
echo
fi
mkdir -p "${bundle_dir}"
if [ $# -lt 1 ]; then
bundles=(${DEFAULT_BUNDLES[@]})
else
bundles=($@)
fi
for bundle in ${bundles[@]}; do
export DEST="${bundle_dir}/$(basename "$bundle")"
# Cygdrive paths don't play well with go build -o.
if [[ "$(uname -s)" == CYGWIN* ]]; then
export DEST="$(cygpath -mw "$DEST")"
fi
mkdir -p "$DEST"
ABS_DEST="$(cd "$DEST" && pwd -P)"
bundle "$bundle"
echo
done
}
main "$@"
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