1#!/usr/bin/env bash
2set -e
3
4# a helper to provide ".exe" when it's appropriate
5binary_extension() {
6	if [ "$(go env GOOS)" = 'windows' ]; then
7		echo -n '.exe'
8	fi
9}
10
11GO_PACKAGE='github.com/docker/docker/cmd/dockerd'
12BINARY_SHORT_NAME='dockerd'
13BINARY_NAME="$BINARY_SHORT_NAME-$VERSION"
14BINARY_EXTENSION="$(binary_extension)"
15BINARY_FULLNAME="$BINARY_NAME$BINARY_EXTENSION"
16
17source "${MAKEDIR}/.go-autogen"
18
19hash_files() {
20	while [ $# -gt 0 ]; do
21		f="$1"
22		shift
23		dir="$(dirname "$f")"
24		base="$(basename "$f")"
25		for hashAlgo in md5 sha256; do
26			if command -v "${hashAlgo}sum" &> /dev/null; then
27				(
28					# subshell and cd so that we get output files like:
29					#   $HASH docker-$VERSION
30					# instead of:
31					#   $HASH /go/src/github.com/.../$VERSION/binary/docker-$VERSION
32					cd "$dir"
33					"${hashAlgo}sum" "$base" > "$base.$hashAlgo"
34				)
35			fi
36		done
37	done
38}
39
40(
41	export GOGC=${DOCKER_BUILD_GOGC:-1000}
42
43	if [ "$(go env GOOS)/$(go env GOARCH)" != "$(go env GOHOSTOS)/$(go env GOHOSTARCH)" ]; then
44		# must be cross-compiling!
45		case "$(go env GOOS)/$(go env GOARCH)" in
46			windows/amd64)
47				export CC="${CC:-x86_64-w64-mingw32-gcc}"
48				export CGO_ENABLED=1
49				;;
50			linux/arm)
51				case "${GOARM}" in
52					5 | "")
53						export CC="${CC:-arm-linux-gnueabi-gcc}"
54						export CGO_ENABLED=1
55						;;
56					7)
57						export CC="${CC:-arm-linux-gnueabihf-gcc}"
58						export CGO_ENABLED=1
59						;;
60				esac
61				;;
62			linux/arm64)
63				export CC="${CC:-aarch64-linux-gnu-gcc}"
64				export CGO_ENABLED=1
65				;;
66			linux/amd64)
67				export CC="${CC:-x86_64-linux-gnu-gcc}"
68				export CGO_ENABLED=1
69				;;
70		esac
71	fi
72
73	# -buildmode=pie is not supported on Windows and Linux on mips and riscv64.
74	case "$(go env GOOS)/$(go env GOARCH)" in
75		windows/* | linux/mips* | linux/riscv*) ;;
76
77		*)
78			BUILDFLAGS+=("-buildmode=pie")
79			;;
80	esac
81
82	echo "Building: $DEST/$BINARY_FULLNAME"
83	echo "GOOS=\"${GOOS}\" GOARCH=\"${GOARCH}\" GOARM=\"${GOARM}\""
84	go build \
85		-o "$DEST/$BINARY_FULLNAME" \
86		"${BUILDFLAGS[@]}" \
87		-ldflags "
88		$LDFLAGS
89		$LDFLAGS_STATIC_DOCKER
90		$DOCKER_LDFLAGS
91	" \
92		${GO_PACKAGE}
93)
94
95echo "Created binary: $DEST/$BINARY_FULLNAME"
96ln -sf "$BINARY_FULLNAME" "$DEST/$BINARY_SHORT_NAME$BINARY_EXTENSION"
97
98hash_files "$DEST/$BINARY_FULLNAME"
99